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Publication List

Papers in Refereed Journals


Last modified: February, 2023


[1] Optical Variability in Active Galactic Nuclei: Starbursts or Disk Instabilities?
T. Kawaguchi, S. Mineshige, M. Umemura, and E. L. Turner
The Astrophysical Journal, 504, 671-679 (1998)


[2] The 1997 Outburst of BL Lacertae and Detection of a 0.6 mag Rapid Variation
K. Matsumoto, T. Kato, D. Nogami, T. Kawaguchi, T. Kinnunen, G. Poyner
Publications of the Astronomical Society of Japan, Vol. 51, p. 253-256 (1999)


[3] Temporal 1/f^alpha Fluctuation from Fractal Magnetic Fields in Black Hole Accretion Flow
T. Kawaguchi, S. Mineshige, M. Machida, R. Matsumoto, and K. Shibata
Publications of the Astronomical Society of Japan, Vol. 52, p. L1-L4 and plate 1 (2000)


[4] Slim Disk Model for Soft Excess and Variability of Narrow-Line Seyfert 1 Galaxies
S. Mineshige, T. Kawaguchi, M. Takeuchi, and K. Hayashida
Publications of the Astronomical Society of Japan, 52, 499-508 (2000)


[5] Broad-Band Spectral Energy Distributions of Active Galactic Nuclei from an Accretion Disk with Advective Coronal Flow
T. Kawaguchi, T. Shimura and S. Mineshige
The Astrophysical Journal, 546, 966--974 (2001)


[6] Theoretical Models of Multi-Waveband QSO Luminosity Functions
T. Hosokawa, S. Mineshige, T. Kawaguchi, K. Yoshikawa and M. Umemura
Publications of the Astronomical Society of Japan, 53, 861--869 (2001)


[7] Two-Temperature Coronal Flow Above a Thin Disk
B.F. Liu, S. Mineshige, F. Meyer, E. Meyfer-Hofmeister and T. Kawaguchi
The Astrophysical Journal Letter, 575, 117--126, 2002


[8] Comptonization in Super--Eddington Accretion Flow and Growth Timescale of Supermassive Blackholes
T. Kawaguchi
The Astrophysical Journal, 2003, 593, 69--84


[9] The Origin of Emission and Absorption Features in TonS180 Chandra Observations
A. Rozanska, B. Czerny, A. Siemiginowska, A.-M. Dumont, and T. Kawaguchi
The Astrophysical Journal, 2004, 600, 96--105


[10] The Origin of Optical Emission from Super-Eddington Accreting Active Galactic Nuelci; the Case of TonS180
T. Kawaguchi, A. Pierens, and J.-M. Hure
Astronomy & Astrophysics, 2004, 415, 47--54


[11] Growth of Massive Black Holes by Super-Eddington Accretion
T. Kawaguchi, K. Aoki, K. Ohta and S. Collin
Astronomy & Astrophysics, 2004, 420, L23--L26


[12] Super-Eddington Accretion Rates in Narrow-Line Seyfert 1 Galaxies; I. General Trend
S. Collin and T. Kawaguchi
Astronomy & Astrophysics, 2004, 426, 797--808


[13] The Largest Blueshifts of [O III] emission line in Two Narrow-Line Quasars
K. Aoki, T. Kawaguchi and K. Ohta
The Astrophysical Journal, 2005, 618, 601--608


[14] New Insights on the Determination of Black Hole Masses by Reverberation Mapping in AGN
S. Collin, T. Kawaguchi, B.M. Peterson, and M. Vestergaard
Astronomy & Astrophysics, 2006, 456, 75--90


[15] Do ULXs Really Contain Intermediate--Mass Black Holes?
K. Vierdayanti, S. Mineshige, K. Ebisawa, and T. Kawaguchi
Publications of the Astronomical Society of Japan, 2006, 58, 915--923


[16] Massive Stellar Black Hole in the Ultra-luminous X-ray Source M82 X-1?
T. Okajima, K. Ebisawa, and T. Kawaguchi
The Astrophysical Journal Letters, 2006, 652, L105--L108


[17] A Bar Fuels a Super-Massive Black hole?: Host Galaxies of Narrow-Line Seyfert 1 Galaxies
K. Ohta, K. Aoki, T. Kawaguchi, and G. Kiuchi
The Astrophysical Journal Supplement, 2007, 169, 1--20


[18] First Detection of 12CO (1--0) Emission from Two Narrow-Line Seyfert 1 Galaxies
T. Kawaguchi, K. Nakanishi, K. Kohno, K. Ohta, and K. Aoki
The Astrophysical Journal, 2008 (March), 676, 137--146


[19] Formation of Intermediate-Mass Black Holes as Primordial Black Holes in the Inflationary Cosmology with Running Spectral Index
T. Kawaguchi, M. Kawasaki, T. Takayama, M. Yamaguchi, and J. Yokoyama
MNRAS, 2008 (Aug), 388, 1426--1432


[20] Long-Term Spectral Variations of Ultraluminous X-ray Sources in the interacting galaxy systems M51 and NGC4490/85
T. Yoshida, K. Ebisawa, K. Matsushita, M. Tsujimoto, and T. Kawaguchi
The Astrophysical Journal, 2010, 722, 760--773


[21] Orientation Effects on the Inner Region of Dusty Torus of Active Galactic Nuclei
T. Kawaguchi, and M. Mori
The Astrophysical Journal Letters, 2010, 724, 183--187


[22] Near-Infrared Reverberation by Dusty Clumpy Tori in Active Galactic Nuclei
T. Kawaguchi, and M. Mori
The Astrophysical Journal, 2011, 737, 105--120


[23] RXTE Follow-up Observations of the Black Hole Candidate MAXI J1659--152 Discovered by MAXI and Swift
K. Yamaoka, R. Allured, P. Kaaret, J.A. Kennea, T. Kawaguchi, P. Ghandi, N. Shaposhnikov, Y. Ueda, S. Nakahira, T. Kotani, H. Negoro, I. Takahashi, A. Yoshida, N. Kawai and S. Sugita
Publications of the Astronomical Society of Japan, 2012, 64, 32 [15 pages]


[24] Investigating slim disk solutions for HLX-1 in ESO 243-49
O. Godet, B. Plazolles, T. Kawaguchi, J.-P. Lasota, D. Barret, S. Farrell, V. Braito, M. Servillat, N. Webb and N. Gehrels
The Astrophysical Journal, 2012, 752, 34 [12pages]


[25] Statistical Properties of Multi-Epoch Spectral Variability of SDSS Stripe 82 Quasars
M. Kokubo, T. Morokuma, T. Minezaki, M. Doi, T. Kawaguchi, H. Sameshima and S. Koshida
The Astrophysical Journal, 2014, 783, 46


[26] Hunting A Wandering Black Hole in M31 Halo: Hermitage of Black Hole
Y. Miki, M. Mori, T. Kawaguchi and Y. Saito
The Astrophysical Journal, 2014, 783, 87


[27] Relics of Galaxy Merging: Observational Predictions for a Wandering Massive Black Hole and Accompanying Star Cluster in the Halo of M31
T. Kawaguchi, Y. Saito, Y. Miki and M. Mori
The Astrophysical Journal Letters, 2014, 789, L13


[28] Hyper-luminous Dust Obscured Galaxies discovered by the Hyper Suprime-Cam on Subaru and WISE
Y. Toba, T. Nagao, M.A. Strauss, K, Aoki, T. Goto, M. Imanishi, T. Kawaguchi, Y. Terashima, Y. Ueda, K. Bundy, H. Inami, Y. Komiyama, H. Matsuhara, Y. Matsuoka, T. Morokuma, N. Oi, M. Onoue, S. Oyabu
Publications of the Astronomical Society of Japan, 2015, 67, 86


[29] Near-Infrared Spectroscopy of Quasars at z ~ 3 and Estimates of Their Supermassive Black Hole Masses
Y. Saito, M. Imanishi, Y. Minowa, T. Morokuma, T. Kawaguchi, H. Sameshima, T. Minezaki, N. Oi, T. Nagao, N. Kawatatu, and K. Matsuoka
Publications of the Astronomical Society of Japan, 2016, 68, 1


[30] X-ray Spectral Model of Reprocess by Smooth and Clumpy Molecular Tori in Active Galactic Nuclei with the framework MONACO
S. Furui, Y. Fukazawa, H. Odaka, T. Kawaguchi, M. Ohno, K. Hayashi
The Astrophysical Journal, 2016, 818, 164


[31] Subaru high-z exploration of low-luminosity quasars (SHELLQs). I. Discovery of 15 quasars and bright galaxies at 5.7 < z < 6.9
Y. Matsuoka, M. Onoue, N. Kashikawa, K. Iwasawa, M.A. Strauss, T. Nagao, M. Imanishi, M. Niida, Y. Toba, M. Akiyama, N. Asami, J. Bosch, S. Foucaud, H. Furusawa, T. Goto, J.E. Gunn, Y. Harikane H. Ikeda, T. Kawaguchi, S. Kikuta, Y. Komiyama, R.H. Lupton, T. Minezaki, S. Miyazaki, T. Morokuma, H. Murayama, A.J. Nishizawa, Y. Ono, M. Ouchi, P.A. Price, H. Sameshima, J.D. Silverman, N. Sugiyama, P.J. Tait, M. Takada, T. Takata, M. Tanaka, J.-J. Tang, Y. Utsumi
The Astrophysical Journal, 2016, 828, 26


[32] Theoretical Reevaluations of Black Hole Mass--Bulge Mass Relation - I. Influences of the Seed Black Hole Mass
H. Shirakata, T. Kawaguchi, T. Okamoto, R. Makiya, T. Ishiyama, Y. Matsuoka, M. Nagashima, M. Enoki, T. Oogi, and M.A.R. Kobayashi
Monthly Notices of the Royal Astronomical Society, 2016, 461, 4389--4394


[33] Formation of the Andromeda Giant Stream: Asymmetric Structure and Disk Progenitor
T. Kirihara, Y. Miki, M. Mori, T. Kawaguchi, R.M. Rich
Monthly Notices of the Royal Astronomical Society, 2016, 464, 3509


[34] Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). II. Discovery of 32 Quasars and Luminous Galaxies at 5.7 < z < 6.8
Y. Matsuoka, M. Onoue, N. Kashikawa, K. Iwasawa, M. A. Strauss, T. Nagao, M. Imanishi, C.-H. Lee, M. Akiyama, N. Asami, J. Bosch, S. Foucaud, H. Furusawa, T. Goto, J. E. Gunn, Y. Harikane, H. Ikeda, T. Kawaguchi, S. Kikuta, K. Kohno, Y. Komiyama, R. H. Lupton, T. Minezaki, S. Miyazaki, T. Morokuma, H. Murayama, M. Niida, A. J. Nishizawa, M. Oguri, Y. Ono, M. Ouchi, P. A. Price, H. Sameshima, A. Schulze, H. Shirakata, J. D. Silverman, N. Sugiyama, P. J. Tait, M. Takada, T. Takata, M. Tanaka, J.-J. Tang, Y. Toba, Y. Utsumi and S.-Y. Wang
Publications of the Astronomical Society of Japan, 2018, 70, S35


[35] The Quasar Luminosity Function at Redshift 4 with Hyper Suprime-Cam Wide Survey
M. Akiyama, W. He, H. Ikeda, M. Niida, T. Nagao, J. Bosch, J. Coupon, M. Enoki, M. Imanishi, N. Kashikawa, T. Kawaguchi, Y. Komiyama, C.-H. Lee, Y. Matsuoka, S. Miyazaki, A. Nishizawa, M. Oguri, Y. Ono, M. Onoue, M. Ouchi, A. Schulze, J.D. Silverman, M.M. Tanaka, M. Tanaka, Y. Terashima, Y. Toba and Y. Ueda
Publications of the Astronomical Society of Japan, 2018, 70, S34


[36] X-Ray Bright Optically Faint Active Galactic Nuclei in the Subaru Hyper Suprime-Cam Wide Survey
Y. Terashima, M. Suganuma, M. Akiyama, J.E. Greene, T. Kawaguchi, K. Iwasawa, T. Nagao, H. Noda, Y. Toba, Y. Ueda and T. Yamashita
Publications of the Astronomical Society of Japan, 2018, 70, S36


[37] Clustering of quasars in a wide luminosity range at redshift 4 with Subaru Hyper Suprime-Cam wide field imaging
W. He, M. Akiyama, J. Bosch, M. Enoki, Y. Harikane, H. Ikeda, N. Kashikawa, T. Kawaguchi, Y. Komiyama, C.-H. Lee, Y. Matsuoka, S. Miyazaki, T. Nagao, M. Magashima, M. Niida, A.J. Nishizawa, M. Oguri, M. Onoue, T. Oogi, M. Ouchi, A. Schulze, Y. Shirasaki, J.D. Silverman, M.M. Tanaka, M. Tanaka, Y. Toba, H. Uchiyama and T. Yamashita
Publications of the Astronomical Society of Japan, 2018, 70, S33


[38] A 100-pc Scale, Fast and Dense Outflow in Narrow-Line Seyfert 1 Galaxy IRAS 04576+0912
T. Kawaguchi, S. Ozaki, H. Sugai, K. Matsubayashi, T. Hattori, A. Shimono, K. Aoki, Y. Hayano, Y. Minowa, K. Mitsuda and Y. Hashiba
Publications of the Astronomical Society of Japan, 2018, 70, 93


[39] Imaging Extended Emission-Line Regions of Obscured AGN with the Subaru Hyper Suprime-Cam Survey
A.-L. Sun, J.E. Greene, N.L. Zakamska, A. Goulding, M. Strauss, S. Huang, S. Johnson, T. Kawaguchi, Y. Matsuoka, A.A. Marsteller, T. Nagao and Y. Toba
Monthly Notices of the Royal Astronomical Society, 2018, 480, p.2302-2323


[40] Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). IV. Discovery of 41 Quasars and Luminous Galaxies at 5.7 < z < 6.9
Y. Matsuoka, K. Iwasawa, M. Onoue, N. Kashikawa, M.A. Strauss, C.-H. Lee, M. Imanishi, T. Nagao, M. Akiyama, N. Asami, J. Bosch, H. Furusawa, T. Goto, J.E. Gunn, Y. Harikane, H. Ikeda, T. Izumi, T. Kawaguchi, N. Kato, S. Kikuta, K. Kohno, Y. Komiyama, R.H. Lupton, T. Minezaki, S. Miyazaki, T. Morokuma, H. Murayama, M. Niida, A.J. Nishizawa, M. Oguri, Y. Ono, M. Ouchi, P.A. Price, H. Sameshima, A. Schulze, H. Shirakata, J.D. Silverman, N. Sugiyama, P.J. Tait, M. Takada, T. Takata, M. Tanaka, J.-J. Tang, Y. Toba, Y. Utsumi, S.-Y. Wang and T. Yamashita
The Astrophysical Journal Supplement, ApJS, 2018, 237, 5


[41] A Wide and Deep Exploration of Radio Galaxies with The Subaru HSC (WERGS).I: The Optical Counterparts of FIRST Radio Sources
T. Yamashita, T. Nagao, M. Akiyama, W. He, H. Ikeda, M. Tanaka, M. Niida, M. Kajisawa, Y. Matsuoka, K. Nobuhara, C.-H. Lee, T. Morokuma, Y. Toba, T. Kawaguchi, and A. Noboriguchi
The Astrophysical Journal, 2018, 866, 140


[42] Compton Shoulder Diagnostics in Active Galactic Nuclei for Probing the Metalicity of the Obscuring Compton-Thick Tori
M. Hikitani, M. Ohno, Y. Fukazawa, T. Kawaguchi, and H. Odaka
The Astrophysical Journal, 2018, 867, 80


[43] Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). V. Quasar Luminosity Function and Contribution to Cosmic Reionization at z = 6
Y. Matsuoka, M.A. Strauss, N. Kashikawa, M. Onoue, K. Iwasawa, J.-J. Tang, C.-H. Lee, M. Imanishi, T. Nagao, M. Akiyama, N. Asami, J. Bosch, H. Furusawa, T. Goto, J.E. Gunn, Y. Harikane, H. Ikeda, T. Izumi, T. Kawaguchi, N. Kato, S. Kikuta, K. Kohno, Y. Komiyama, R.H. Lupton, T. Minezaki, S. Miyazaki, H. Murayama, M. Niida, A.J. Nishizawa, A. Noboriguchi, M. Oguri, Y. Ono, M. Ouchi, P.A. Price, H. Sameshima, A. Schulze, H. Shirakata, J.D. Silverman, N. Sugiyama, P.J. Tait, M. Takada, T. Takata, M. Tanaka, Y. Toba, Y. Utsumi, S.-Y. Wang and T. Yamashita
The Astrophysical Journal, 2018, 869, 150


[44] The New Numerical Galaxy Catalogue (nu^2 GC): Properties of Active Galactic Nuclei and Their Host Galaxies
H. Shirakata, T. Okamoto, T. Kawaguchi, M. Nagashima, T. Ishiyama, R. Makiya, M.A.R. Kobayashi, M. Enoki, T. Oogi and K. Okoshi
Monthly Notices of the Royal Astronomical Society, 2019, 482, p.4846-4873


[45] Discovery of the First Low-luminosity Quasar at z > 7
Y. Matsuoka, M. Onoue, N. Kashikawa, M.A. Strauss, K. Iwasawa, C.-H. Lee, M. Imanishi, T. Nagao, M. Akiyama, N. Asami, J. Bosch, H. Furusawa, T. Goto, J.E. Gunn, Y. Harikane, H. Ikeda, T. Izumi, T. Kawaguchi, N. Kato, S. Kikuta, K. Kohno, Y. Komiyama, S. Koyama, R.H. Lupton, T. Minezaki, S. Miyazaki, H. Murayama, M. Niida, A.J. Nishizawa, A. Noboriguchi, M. Oguri, Y. Ono, M. Ouchi, P.A. Price, H. Sameshima, A. Schulze, H. Shirakata, J.D. Silverman, N. Sugiyama, P.J. Tait, M. Takada, T. Takata, M. Tanaka, J.-J. Tang, Y. Toba, Y. Utsumi, S.-Y. Wang and T. Yamashita
The Astrophysical Journal Letters, 2019, 872, 2


[46] Discovery of Extreme Ionized-gas Outflow in an AKARI-selected Ultra-luminous Infrared Galaxy at z = 0.5
X. Chen, M. Akiyama, H. Noda, A. Uf, Y. Toba, I. Yamamura, T. Kawaguchi, M. Kokubo and K. Ichikawa
Publications of the Astronomical Society of Japan, 2019, 71, 29


[47] Application of Clumpy Torus Model to Broadband X-ray Spectra of Two Seyfert 1 Galaxies: IC 4329A and NGC 7469
S. Ogawa, Y. Ueda, S. Yamada, A. Tanimoto and T. Kawaguchi
The Astrophysical Journal, 2019, 875, 115


[48] Optical Properties of Infrared-Bright Dust-Obscured Galaxies Viewed with Subaru Hyper Suprime-Cam
A. Noboriguchi, T. Nagao, Y. Toba, M. Niida, M. Kajisawa, M. Onoue, Y. Matsuoka, T. Yamashita, Y.-Y. Chang, T. Kawaguchi, K. Nobuhara, Y. Terashima and Y. Ueda
The Astrophysical Journal, 2019, 876, 132


[49] XCLUMPY: X-Ray Spectral Model from Clumpy Torus and Its Application to Circinus Galaxy
A. Tanimoto, Y. Ueda, H. Odaka, T. Kawaguchi, Y. Fukazawa and T. Kawamuro
The Astrophysical Journal, 2019, 877, 95


[50] Slowing down of cosmic growth of supermassive black holes: Theoretical prediction of the Eddington ratio distribution
H. Shirakata, T. Kawaguchi, T. Oogi, T. Okamoto and M. Nagashima
Monthly Notices of the Royal Astronomical Society, 2019, 487, p.409-419


[51] Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). II. Physical Properties derived from the SED Fitting with Optical, Infrared, and Radio Data
Y. Toba, T. Yamashita, T. Nagao, W.-H. Wang, Y. Ueda, K. Ichikawa, T. Kawaguchi, M. Akiyama, B.-C. Hsieh, M. Kajisawa, C.-H. Lee, Y. Matsuoka, A. Noboriguchi, M. Onoue, M. Schramm, M. Tanaka and Y. Komiyama
The Astrophysical Journal Supplement, 2019, 243, 15


[52] Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). VI. Black Hole Mass Measurements of Six Quasars at 6.1 < z < 6.7
M. Onoue, N. Kashikawa, Y. Matsuoka, N. Kato, T. Izumi, T. Nagao, M.A. Strauss, Y. Harikane, M. Imanishi, K. Ito, K. Iwasawa, T. Kawaguchi, C.-H. Lee, A. Noboriguchi, H. Suh, M. Tanaka and Y. Toba
The Astrophysical Journal, 2019, 880, 77


[53] SILVERRUSH. VIII. Spectroscopic Identications of Early Large Scale Structures with Protoclusters Over 200 Mpc at z ~ 6 - 7: Strong Associations of Dusty Star-Forming Galaxies
Y. Harikane, M. Ouchi, Y. Ono, S. Fujimoto, D. Donevski, T. Shibuya, A.L. Faisst, T. Goto, B. Hatsukade, N. Kashikaw, K. Kohno, T. Hashimoto, R. Higuchi, A.K. Inoue, Y.-T. Lin, C.L. Martin, R. Overzier, I. Smail, J. Toshikawa, H. Umehata, Y. Ao, S. Chapman, D.L. Clements, M. Im, Y. Jing, T. Kawaguchi, C.-H. Lee, M.M. Lee, L. Lin, Y. Matsuoka, M. Marinello, T. Nagao, M. Onodera, S. Toft, W.-H. Wang
The Astrophysical Journal, 2019, 883, 142


[54] Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). X. Discovery of 35 Quasars and Luminous Galaxies at 5.7 =< z =< 7.0
Y. Matsuoka, K. Iwasawa, M. Onoue, N. Kashikawa, M.A. Strauss, C.-H. Lee, M. Imanishi, T. Nagao, M. Akiyama, N. Asami, J. Bosch, H. Furusawa, T. Goto, J.E. Gunn, Y. Harikane, H. Ikeda, T. Izumi, T. Kawaguchi, N. Kato, S. Kikuta, K. Kohno, Y. Komiyama, S. Koyama, R.H. Lupton, T. Minezaki, S. Miyazaki, H. Murayama, M. Niida, A.J. Nishizawa, A. Noboriguchi, M. Oguri, Y. Ono, M. Ouchi, P.A. Price, H. Sameshima, A. Schulze, J.D. Silverman, N. Sugiyama, P.J. Tait, M. Takada, T. Takata, M. Tanaka, J.-J. Tang, Y. Toba, Y. Utsumi, S.-Y. Wang, T. Yamashita
The Astrophysical Journal, 2019, 883, 183


[55] Comparison of Properties of Quasars with and without Rapid Broad Absorption Line Variability
T. Horiuchi, T. Morokuma, T. Misawa, H. Hanayama and T. Kawaguchi
The Astronomical Journal, 2020, 159, 237


[56] Revisiting Soltan Argument based on a Semi-Analytical Model for Galaxy and Black Hole Evolution
H. Shirakata, T. Kawaguchi, T. Okamoto, M. Nagashima and T. Oogi
The Astrophysical Journal, 2020, 898, 63


[57] Application of X-ray Clumpy Torus Model (XCLUMPY) to 10 Obscured AGNs Observed with Suzaku and NuSTAR
A. Tanimoto ,Y. Ueda ,H. Odata, T. Kawaguchi and K. Ichikawa
The Astrophysical Journal, 2020, 897, 2


[58] Semi-analytic modeling of AGNs: auto-correlation function and halo occupation
T. Oogi, H. Shirakata, M. Nagashima, T. Nishimichi, T. Kawaguchi, T. Okamoto, T. Ishiyama and M. Enoki
Monthly Notices of the Royal Astronomical Society, 2020, 497, 1


[59] Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). III. Discovery of a z = 4.72 Radio Galaxy with Lyman Break Technique
T. Yamashita, T. Nagao, H. Ikeda, Y. Toba, M. Kajisawa, Y. Ono, M. Tanaka, M. Akiyama, Y. Harikane, K. Ichikawa, T. Kawaguchi, T. Kawamuro, K. Kohno, C.H. Lee, K. Lee, Y. Matsuoka, M. Niida, K. Ogura, M. Onoue, H. Uchiyama
The Astronomical Journal, 2020, 160, 60


[60] Dual Supermassive Black Holes at Close Separation Revealed by the Hyper Suprime-Cam Subaru Strategic Program
J.D. Silverman, S. Tang, K.-G. Lee, T. Hartwig, A. Goulding, M.A. Strauss, M. Schramm, X. Ding, R. Riffel, S. Fujimoto, C. Hikage, M. Imanishi, K. Iwasawa, K. Jahnke, I. Kayo, N. Kashikawa, T. Kawaguchi, K. Kohno, W. Luo, Y. Matsuoka, Y. Matsuda, T. Nagao, M. Oguri, Y. Ono, M. Onoue, M. Ouchi, K. Shimasaku, H. Suh, N. Suzuki, Y. Taniguchi, Y. Toba, Y. Ueda, N.I Yasuda
The Astrophysical Journal, 2020, 899, 154


[61] Tracing the Co-evolution Path of Supermassive Black Holes and Spheroids with AKARI Selected Ultra-Luminous IR Galaxies at Intermediate Redshifts
X.-Y. Chen, M. Akiyama, K. Ichikawa, H. Noda, Y. Toba, I. Yamamura, T. Kawaguchi, A. Uf and M. Kokubo
The Astrophysical Journal, 2020, 900, 51


[62] Subaru Hyper Suprime-Cam View of Quasar Host Galaxies at z < 1
T. Ishino, Y. Matsuoka, S. Koyama, Y. Saeda, M.A. Strauss, A.D. Goulding, M. Imanishi, T. Kawaguchi, T. Minezaki, T. Nagao, A. Noboriguchi, M. Schramm, J.D. Silverman, Y. Taniguchi and T. Toba
Publications of the Astronomical Society of Japan, 2020, 72, 83


[63] Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). IX. Identification of Two Red Quasars at z > 5.6
N. Kato, Y. Matsuoka, M. Onoue, S. Koyama, Y. Toba, M. Akiyama, S. Fujimoto, M. Imanishi, K. Iwasawa, T. Izumi, N. Kashikawa, T. Kawaguchi, C.-H. Lee, T. Minezaki, T. Nagao, A. Noboriguchi and M.A. Strauss
Publications of the Astronomical Society of Japan, 2020, 72, 84


[64] Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XI. Proximity Zone Analysis for Faint Quasar Spectra at z ~ 6
R. Ishimoto, N. Kashikawa, M. Onoue, Y. Matsuoka, T. Izumi, M.A. Strauss, M. Imanishi, K. Ito, K. Iwasawa, T. Kawaguchi, C.-H. Lee, Y. Liang, T.-Y. Lu, R. Momose, Y. Toba, and H. Uchiyama
The Astrophysical Journal, 2020, 903, 60


[65] The Faint End of The Quasar Luminosity Function at z ~ 5 from The Subaru Hyper Suprime-Cam Survey
M. Niida, T. Nagao, H. Ikeda, M. Akiyama, Y. Matsuoka, W. He, K. Matsuoka, Y. Toba, M. Onoue, M.A.R. Kobayashi, Y. Taniguchi, H. Furusawa, Y. Harikane, M. Imanishi, N. Kashikawa, T. Kawaguchi, Y. Komiyama, H. Shirakata, Y. Terashima and Y. Ueda
The Astrophysical Journal, 2020, 904, 89


[66] NuSTAR Non-detection of a Faint Active Galactic Nucleus in an Ultraluminous IR Galaxy with Kpc-scale Fast Wind
X. Chen, K. Ichikawa, H. Noda, T. Kawamuro, T. Kawaguchi, Y. Toba and M. Akiyama
The Astrophysical Journal Letters, 2020, 905, 2


[67] Destruction of the central black hole gas reservoir through head-on galaxy collisions
Y. Miki, M. Mori and T. Kawaguchi
Nature Astronomy, 2021, Jan (DOI 10.1038/s41550-020-01286-9)


[68] Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs) XII. Extended [C II] Structure (Merger or Outflow) in a z = 6.72 Red Quasar
T. Izumi, M. Onoue, Y. Matsuoka, M.A. Strauss, S. Fujimoto, H. Umehata, M. Imanishi, T.Kawamuro, T. Nagao, Y. Toba, K. Kohno, N. Kashikawa, K. Inayoshi, T. Kawaguchi, K. Iwasawa,A.K. Inoue, T. Goto, S. Baba, M. Schram, H. Suh, Y. Harikane, Y. Ueda, J.D. Silverman, T.Hashimoto, Y. Hashimoto, S. Ikarashi, D. Iono, C.-H. Lee, K. Lee, T. Minezaki, K. Nakanishi, S. Nakano, Y. Tamura, and J.-J. Tang
The Astrophysical Journal, 2021, 908, 235


[69]The eROSITA Final Equatorial Depth Survey (eFEDS). An X-ray bright, extremely luminous infrared galaxy at z=1.87
Y. Toba, M. Brusa, T. Liu, J. Buchner, Y. Terashima, T. Urrutia, M. Salvato, M. Akiyama, R.Arcodia, A.D. Goulding, Y. Higuchi, K.T. Inoue, T. Kawaguchi, G. Lamer, A. Merloni, T. Nagao,Y. Ueda, K. Nandra
Astronomy & Astrophysics Letters, 2021, 649, 11


[70]Subaru High-z Exploration of Low-luminosity Quasars (SHELLQs). XIII. Large-scale Feedback and Star Formation in a Low-luminosity Quasar at z = 7.07 that Shows a Consistent Black Hole to Galaxy Mass Ratio with the Local Value
T. Izumi, Y. Matsuoka, S. Fujimoto, M. Onoue, M.A. Strauss, H. Umehata, M. Imanishi, K. Kohno, T. Kawaguchi, T. Kawamuro, S. Baba, T. Nagao, Y. Toba, K. Inayoshi, J.D. Silverman, A.K. Inoue, S. Ikarashi, K. Iwasawa, N. Kashikawa, T. Hashimoto, K. Nakanishi, Y. Ueda, M. Schramm, C.-H, Lee, and H. Suh
The Astrophysical Journal, 2021, 914, 36


[71]Optical Spectroscopy of Dual Quasar Candidates from the Subaru HSC-SSP program
S. Tang, J.D. Silverman, X. Ding, J. Li, K.-G. Lee, M.A. Strauss, A. Goulding, M. Schramm, L. Kawinwanichakij, P.J. Xavier, J.F. Hennawi, M. Imanishi, K. Iwasawa, Y. Toba, I. Kayo, M. Oguri, Y. Matsuoka, M. Onoue, K. Jahnke, K. Ichikawa, T. Hartwig, N. Kashikawa, T. Kawaguchi, K. Kohno, Y. Matsuda, T. Nagao, Y. Ono, M. Ouchi, K. Shimasaku, H. Suh, N. Suzuki, Y. Taniguchi, Y. Ueda, N. Yasuda
The Astrophysical Journal, 2021, 922, 83


[72]Ionizing radiation from AGNs at $z > 3.3$ with the Subaru Hyper Suprime-Cam Survey and the CFHT Large Area U-band Deep Survey (CLAUDS)
I. Iwata, M. Sawicki, A.K. Inoue, M. Akiyama, G. Micheva, T. Kawaguchi, N. Kashikawa, S. Gwyn, S. Arnouts, J. Coupon, G. Desprez
Monthly Notices of the Royal Astronomical Society, 2022, 509, 1820


[73]Subaru High-z Exploration of Low-Luminosity Quasars (SHELLQs). XVI. 69 New Quasars at 5.8 < z < 7.0
Y. Matsuoka, K. Iwasawa, M. Onoue, T. Izumi, N. Kashikawa, M.A. Strauss, M. Imanishi, T. Nagao, M. Akiyama, J.D. Silverman, N. Asami, J. Bosch, H. Furusawa, T. Goto, J.E. Gunn, Y. Harikane, H. Ikeda, R. Ishimoto, T. Kawaguchi,N. Kato, S. Kikuta, K. Kohno, Y. Komiyama, C.-H. Lee, R.H. Lupton, T. Minezaki, S. Miyazaki, H. Murayama, A.J. Nishizawa, M. Oguri, Y. Ono, M. Ouchi, P.A. Price, H. Sameshima, N. Sugiyama, P.J. Tait, M. Takada, A. Takahashi, T. Takata, M. Tanaka, Y. Toba, Y. Utsumi, S.-Y. Wang, T. Yamashita
The Astrophysical Journal Supplement Series, 2022, 259, 18


[74]The eROSITA Final Equatorial-Depth Survey (eFEDS): A multiwavelength view of WISE mid-infrared galaxies/active galactic nuclei
Y. Toba, T. Liu, T. Urrutia, M. Salvato, J. Li, Y. Ueda, M. Brusa, M. Yutani, K. Wada, A.J. Nishizawa, J. Buchner, T. Nagao, A. Merloni, M. Akiyama, R. Arcodia, N.-C. Hsieh, K. Ichikawa, M. Imanishi, K.T. Inoue, T. Kawaguchi, G. Lamer, K. Nandra, J.D. Silverman, Y. Terashima
Astronomy & Astrophysics, 2022, 661, 15


[75]A Wide and Deep Exploration of Radio Galaxies with Subaru HSC (WERGS). VII. Redshift Evolution of Radio Galaxy Environments at z= 0.3-1.4
H. Uchiyama, T. Yamashita, T. Nagao, K. Ichikawa, Y. Toba, S. Ishikawa, M. Kubo, M. Kajisawa, T. Kawaguchi, N. Kawakatu, C.-H. Lee, and A. Noboriguchi
The Astrophysical Journal, 2022, 934, 68


[76]A Wide and Deep Exploration of Radio Galaxieswith Subaru HSC (WERGS). IX. The Most Overdense Region at z ~ 5 Inhabited by the Massive Radio Galaxy
H. Uchiyama, T. Yamashita,, T. Nagao, Y. Ono, J. Toshikawa, K. Icikawa, N. Kawakatu, M. Kajisawa, Y. Toba, Y. Matsuoka, M. Kubo, M. Imanishi, K. Ito, T. Kawaguchi, C.-H. Lee and T. Saito
Publications of the Astronomical Society of Japan Letter, 2022, 74, 27


[77]Extreme Nature of Four BlueE-Excess Dust-Obscured Galaxies Revealed by Optical Spectroscopy
A. Noboriguchi, T. Nagao, Y. Toba, K. Ichikawa, M. Kajisawa, N. Kato, T. Kawaguchi, H. Matsuhara, Y. Matsuoka, K. Onishi, M. Onoue, N. Tamada, K. Terao, Y. Terashima, Y. Ueda and T. Yamashita
The Astrophysical Journal, 2022, 941, 195


Contributions to Proceedings

First-authored publications are listed here.

[1] Optical Variability in AGNs: Disk Instability or Starbursts?
T. Kawaguchi, S. Mineshige, M. Umemura, and E. L. Turner
in The Hot Universe (IAU Symp 188)
ed. K. Koyama, S. Kitamoto, M. Itoh (Dordrecht Kluwer Academic) No.188, p. 451-452 (1998)


[2] AGN Variability
Kawaguchi, T., and Mineshige, S.
in Active Galactic Nuclei and Related Phenomena (IAU Sympo. 194), Invited Review
ed. Y. Terzian, D. Weedman, and E. Khachikian (A.S.P. IAU Sympo. 194) p. 356-363 (1999)


[3] A Model for the Hard X-Ray Lags in Cygnus X-1
Kawaguchi, T., Manmoto, T., Mineshige, S., and Kato, S.
in Disk Instabilities in Close Binary Systems, ed. S. Mineshige, J.C. Wheeler
(Tokyo: Universal Academy Press), p.289-294 (1999)


[4] Spectral Variability of ADAF: on the hard X-ray time lags in Cyg X-1
Kawaguchi, T., Manmoto, T., Mineshige, S., and Kato, S.
in Proc. of ASCA 4th Symp., Heating and Acceleration in The Universe,
ed. H. Inoue, T. Ohashi, T. Takahashi, Astronomische Nachrichten, 320 (4/5), p. 368-368 (1999)


[5] Black-Hole Accretion Disks
Mineshige, S., Yonehara, A, Kawaguchi, T.
in Proc. of Yukawa International Seminar 99, Black Holes and Gravitational Waves,
ed. T. Nakamura, H. Kodama, Prog. Theor. Phys. Supple, 136, p. 235-250 (1999)


[6] Spectral Energy Distributions of Active Galactic Nuclei from an Accretion Disk with Advective Coronal Flow
Kawaguchi, T., Shimura, T., Mineshige, S.
in Proc. of Observational and theoretical progress in the study of Narrow-Line Seyfert 1 galaxies,
ed. Th. Boller, N. Brandt, K. Leighly, M. Ward, New Astronomy Reviews, 2000, Volume 44, Issues 7-9, p.443-445


[7] Slim Disk Model for Narrow-Line Seyfert 1 Galaxies
Mineshige, S., Kawaguchi, T., Takuechi, M.
in Proc. of Observational and theoretical progress in the study of Narrow-Line Seyfert 1 galaxies,
ed. Th. Boller, N. Brandt, K. Leighly, M. Ward, New Astronomy Reviews, 2000, Volume 44, Issues 7-9, p.435-437


[8] Temporal 1/f^alpha Fluctuation from Fractal Magnetic Fields in Black Hole Accretion Flow
T. Kawaguchi, S. Mineshige, M. Machida, and R. Matsumoto
in Proc. of Probing the Physics of Active Galactic Nuclei by Multiwavelength Monitoring held in June, 2000, at Goddard/NASA
ed. B.M. Peterson, R.S. Polidan, and R.W. Pogge (San Francisco: A.S.P. Conf. Ser., 224), p. 97-104 (2001)


[9] Star Formation Activities in Narrow-Line Seyfert 1 Galaxies
T. Kawaguchi, and K. Aoki
Poster contributions of the "Advanced Lectures on the Starburst-AGN Connection"
Eds R. Mujica, I. Aretxaga, and D. Kunth (held in Tonantzintla, Puebla, Mexico, in June 25--29, 2000)
Available at Electronic Edition p. 51-54 (2001 at Mexico) and http://www.kusastro.kyoto-u.ac.jp/~kawaguti/agn_2000_kawaguchi.ps.gz (103kb, Japan)


[10] A Disk-Corona model for optical-to-hard X-ray spectra of Active Galactic Nuclei
T. Kawaguchi, T. Shimura and S. Mineshige
in Proc. of New Century of X-ray Astronomy (Yokohama, March, 2001),
ed. H. Inoue and H. Kunieda, ASP Conf. Series 251, p. 370-371 (2001)


[11] Accretioin disk-corona models: X-ray variability amplitude and spectral variability
T. Kawaguchi
in Proc. of MAXI Workshop on AGN Variability (Nikko, Japan, March, 2001),
ed. N.Kawai, H.Negoro, A.Yoshida, T.Mihara (Seiyo Printing Co. Japan), p. 203--208 (2003)


[12] A Disk-Corona Model for Optical--to--Hard X-ray spectrum of AGN
T. Kawaguchi, T. Shimura and S. Mineshige
in Proc. of X-ray Emission from Accretion onto Black Holes (JHU/LHEA Workshop, June 20--23, 2001),
http://www.pha.jhu.edu/groups/astro/workshop2001/papers/kawaguchi_t.ps (2001)


[13] Electron Scattering in Super-Eddington Accretion Flows and Age Estimation of Supermassive Black Holes
T. Kawaguchi
in Proc. of Active Galactic Nuclei: From Central Engine to Host Galaxies (Meudon, July, 2002),
eds. S. Collin, F. Combes and I. Shlosman (ASP Conf. Series, 290), p. 103--104 (2003)


[14] Spectral Modeling of Super-Eddington Active Galactic Nuclei
T. Kawaguchi
in Proc. of Stellar-Mass, Intermediate -Masss, and Supermassive Black Holes (Kyoto, Oct. 28-31, 2003),
eds. K. Makishima and S. Mineshige, Progress of Theoretical Physics, Supplement, 155, 120--123 (2004)


[15] Growth of massive Black Holes by super-Eddington accretion
T. Kawaguchi
in Proc. of GROWING BLACK HOLES: Accretion in a Cosmological Context (Garching, June 21-25 2004),
eds. A. Merloni, S. Nayakshin and R. Sunyaev, ESO Astrophysics Symposia, p. 307--308 (2005)


[16] Physics of Super-Eddington Accretion Discs
T. Kawaguchi
in Proc. of Ringberg Castle Workshop on AGN Physics (Munich, 2004 Nov),
eds. Th. Boller and L. Gallo,
http://www.xray.mpe.mpg.de/~bol/ringberg_2004/presentations/kawaguchi_t.html


[17] CO Observations on Narrow-Line Seyfert 1 Galaxies: Molecular Gas as Reservoir for Coevolving Black Holes and Bulges?
T. Kawaguchi, K. Nakanishi, K. Kohno, K. Ohta and K. Aoki
in Proc. of Galaxy Bulges: Formation and Evolution (IAU Symposium 245, Oxford, 2007 Jul),
eds. M. Bureau, E. Athanassoula and B. Barbuy, ASP Conference Series 245, 249--250


[18] Molecular Gas in Narrow-Line Seyfert 1 Galaxies
T. Kawaguchi, K. Nakanishi, K. Kohno, K. Ohta, K. Aoki, S. Ishizuki, and R. Kawabe
in Proc. of 1st Subaru Symposium "Panoramic Views of Galaxy Formation and Evolution"-- (Hayama, Japan, Dec., 2007),
ed. T. Kodama, (A.S.P. Conference Series 399), p. 427-- (2008)


[19] IR emission from AGN dusty tori: prospects for selection bias
T. Kawaguchi, and M. Mori
Through the Infrared Looking Glass: A Dusty View of Galaxy and AGN Evolution (Pasadena, USA, Oct., 2011)


[20] Near-Infrared Emission from Dusty Clumpy Tori in AGNs
T. Kawaguchi, and M. Mori
Growing black holes in COSMOS (Kashiwa, Japan, Feb., 2012)


[21] Emission from AGN Dusty Tori and Wandering Balck Holes
T. Kawaguchi, Y. Miki, and M. Mori
AGN Workshop 2012 (Jeju, S.Korea, Sep., 2012)


[22] Innermost Structure and Near-Infrared Emission of AGN Dusty Tori
T. Kawaguchi
in Proc. of Torus Workshop 2012 (U. of Texas, USA, Dec., 2012), arXiv:1306.0188
eds. R. Mason, A. Alonso-Herrero and C. Packham, UTSA publications, p. -- (2013) available here


[23] Evolution of Supermassive Black Holes unveiled through the HSC survey
T. Kawaguchi
Workshop on SMBHs in the Universe: The Era of the HSC Surveys (Matsuyama, Japan, Dec., 2012)


[24] Radio Emission from Wandering Massive Black Hole: Clues to Galaxy.Black Hole Coevolution
T. Kawaguchi, Y. Saito, Y. Miki and M. Mori
SKA Science Workshop in East Asia 2013 (Nagoya Univ., June 2013)


[25] Relics of Galaxy Merging: Optical Emission from a Star Cluster Trailing aWandering Massive Black Hole in the M31 Halo
T. Kawaguchi, Y. Saito, Y. Miki and M. Mori
Evolution of Supermassive Black Holes with HSC: First results from initial dataset (Taipei, Dec 2014)


[26] Relics of Galaxy Merging: Observational Predictions for a Wandering Massive Black Hole and Accompanying Star Cluster in the M31 Halo
T. Kawaguchi, Y. Saito, Y. Miki and M. Mori
Black Holes in Dense Star Clusters (USA, Jan 2015)


[27] Towards Radio Surveys of Massive Black Holes (Invited Talk)
T. Kawaguchi
The 3rd Workshop on Large Aperture Sub/mm Telescope in the ALMA Era (Tokyo, Mar 2015)
HP of the conference


[28] An AO-Assisted Optical IFU Study on Galaxy-BH Coevolution
T. Kawaguchi
Australia-Japan workshop on collaborative science (NAOJ, Dec 2016)
Homepage of the workshop


[29] Current Status of Our AO-Assisted Optical IFU Study on Galaxy-BH Coevolution
T. Kawaguchi, S. Ozaki, H. Sugai, K. Matsubayashi, T. Hattori, A. Shimono, Y. Minowa, Y. Hayano, K. Aoki, K. Mitsuda and Y. Hashiba
Subaru Users' Meeting FY2016 (NAOJ, Jan 2017)


[30] AO-Assisted Optical IFU Study on Fast Outflow from Active Galactic Nuclei with High Gas Accretion Rates
T. Kawaguchi, S. Ozaki, H. Sugai, K. Matsubayashi, T. Hattori, A. Shimono, Y. Minowa, Y. Hayano, K. Aoki, K. Mitsuda and Y. Hashiba
Subaru Users' Meeting FY2017 (NAOJ, Jan 2018)


[31] A 100-pc Scale, Fast and Dense Outflow in a Super-Eddington Accreting Active Galactic Nucleus
T. Kawaguchi
Breaking the limits 2018: Super-Eddington accretion onto compact objects (Sardinia island, Italy, Oct 2018),
Homepage of the conference


[32] Some Aspects of Super-Eddington Accreting AGNs; Illumination and the Feedback Process [Invitation only]
T. Kawaguchi
Slim Accretion Disks Workshop (Warsaw, Poland, Oct 2018)


[33] Fast and Dense Outflow from Active Galactic Nuclei with High Gas Accretion Rates
T. Kawaguchi
Dynamics and physics of outflows in protostellar disks and active galactic nuclei (Kagoshima, Jan 2019)
Homepage of the conference