Publications

as of February 15, 2026

★[N]: first-author papers

Refereed Journals (submitted)
1. Multiphase Gas Structure in the Circumnuclear Region of NGC 5506 Observed with ALMA
  Kana Takechi, Hiroshi Nagai, Nozomu Kawakatu, Keiichi Wada, Takuma Izumi, Motoki Kino, Kouichiro Nakanishi, Naoki Isobe, Mahito Sasada, and Akihiro Doi
  Astrophysical Journal, submitted
Refereed Journals (published)
1. Unification Model of Active Galactic Nuclei by Photoionization Equilibrium Calculation Based on Radiative Hydrodynamic Simulations
  Atsushi Tanimoto, Keiichi Wada, Yuki Kudoh, Nozomu Kawakatu, Mariko Nomura, and Hirokazu Odaka
  accepted by Astrophysical Journal
2. Broad line regions behind haze: Intrinsic shape of Br gamma line and its origin in a type-1 Seyfert galaxy
  Keiichi Wada, Tohru Nagao, Taro Shimizu, Daryl Joe D. Santos, Jinyi Shangguan, and Richard Davies
  Astrophysical Journal 998, 60 (2026)
3. Dynamical Mechanism of Episodic Gas Accretion to the Central Region of Spiral Galaxies
  Naomichi Yutani, Nozomu Kawakatu, Takayuki Saitoh, and Keiichi Wada
  Astrophysical Journal 993, 98 (2025)
4. On the origin of short-lived cocoon in 3C 84: powered by tidal disruption events?
  Nozomu Kawakatu, Motoki Kino, and Keiichi Wada
  Astrophysical Journal 989, 191 (2025)
5. X-Ray Radiative Transfer Calculation Based on a Physics-based Model of the Sub-parsec-scale Gases around an Active Galactic Nucleus and Its Application to NGC 3783
  Atsushi Tanimoto, Keiichi Wada, Hirokazu Odaka, Yuki Kudoh, and Nozomu Kawakatu
  Astrophysical Journal 986, 186 (2025)
6. Multiphase Gas Nature in the Sub-parsec Region of the Active Galactic Nuclei. III. Eddington Ratio Dependence on the Structures of Dusty and Dust-free Outflows
  Yuki Kudoh, Keiichi Wada, Nozomu Kawakatu, and Mariko Nomura
  Astrophysical Journal 977, 48 (2024)
7. Intrinsic line profiles for X-ray fluorescent lines in SKIRT
  Bert Vander Meulen, Peter Camps, Masahiro Tsujimoto, and Keiichi Wada
  Astronomy & Astrophysics 688, L33 (2024)
8. [O IV] and [Ne V]-weak AGNs Hidden by Compton-thick Material in Late Mergers
  Satoshi Yamada, Yoshihiro Ueda, Taiki Kawamuro, Claudio Ricci, Yoshiki Toba, Masatoshi Imanishi, Takamitsu Miyaji, Atsushi Tanimoto, Kohei Ichikawa, Martin Herrera-Endoqui, Shoji Ogawa, Ryosuke Uematsu, and Keiichi Wada
  Astrophysical Journal 965, 153 (2024)
9. Circumnuclear Multi-phase Gas in the Circinus Galaxy. VI. Detectability of Molecular Inflow and Atomic Outflow
  Shunsuke Baba, Keiichi Wada, Takuma Izumi, Yuki Kudoh, Kosei Matsumoto
  Astrophysical Journal 966, 15 (2024)
10. A Spectacular Galactic Scale MHD-Powered Wind in ESO 320-G030
  M. D. Gorski, S. Aalto, S. König, C. F. Wethers, C. Yang, S. Muller, K. Onishi, M. Sato, N. Falstad, Jeffrey G. Mangum, S. T. Linden, F. Combes, S. Martín, M. Imanishi, Keiichi Wada, L. Barcos-Muñoz, F. Stanley, S. García-Burillo, P. P. van der Werf, A. S. Evans, C. Henkel, S. Viti, N. Harada, T. Díaz-Santos, J. S. Gallagher, and E. González-Alfonso
  Astronomy & Astrophysics 682, L2 (2024)
11. Apparent effect of dust extinction on the observed outflow velocity of ionized gas in galaxy mergers
  Naomichi Yutani, Yoshiki Toba, Keiichi Wada
  Astrophysical Journal 961, 68 (2024)
12. Supermassive black hole feeding and feedback observed on subparsec scales
  Takuma Izumi, Keiichi Wada, Masatoshi Imanishi, Kouichiro Nakanishi, Kotaro Kohno, Yuki Kudoh, Taiki Kawamuro, Shunsuke Baba, Naoki Matsumoto, Yutaka Fujita, and Konrad R.W. Tristram
  Science, 382, 554-559 (2023)
13. Circumnuclear Multi-phase Gas in the Circinus Galaxy. V. The Origin of the X-Ray Polarization in the Circinus Galaxy
  Atsushi Tanimoto, Keiichi Wada, Yuki Kudoh, Hirokazu Odaka, Ryosuke Uematsu, and Shoji Ogawa
  Astrophysical Journal 958, 150 (2023)
14. Multi-phase gas nature in the sub-pc region of the active galactic nuclei II: Possible origins of the changing-state AGNs
  Keiichi Wada, Yuki Kudoh, Tohru Nagao
  MNRAS 526, 2717-2723 (2023)
15. Self-consistent dust and non-LTE line radiative transfer with SKIRT
  Kosei Matsumoto, Peter Camps, Maarten Baes, Frederik De Ceuster, Keiichi Wada, Takao Nakagawa, and Kentaro Nagamine
  Astronomy & Astrophysics 678, A175 (2023)
16. Multi-phase gas nature in the sub-pc region of the active galactic nuclei I: Dynamical structures of dusty and dust-free outflow
  Yuki Kudoh, Keiichi Wada, Nozomu Kawakatu, Mariko Nomura
  Astrophysical Journal 950, 72 (2023)
17. Origin and evolution of the Dust Obscured Galaxies in Galaxy Mergers with Supermassive Black Holes
  Naomichi Yutani, Yoshiki Toba, Shunsuke Baba, Keiichi Wada
  Astrophysical Journal 936, 118 (2022)
18. Probing dynamics and thermal properties inside molecular tori with CO rovibrational absorption lines
  Kosei Matsumoto, Takao Nakagawa, Keiichi Wada, Shunsuke Baba, Shusuke Onishi, Taisei Uzuo, Naoki Isobe, and Yuki Kudoh
  Astrophysical Journal 934, 25 (2022)
19. Warm Absorbers in the Radiation-driven Fountain Model of Low-mass Active Galactic Nuclei
  Shoji Ogawa, Yoshihiro Ueda, Keiichi Wada, Misaki Mizumoto
  Astrophysical Journal 925, 55 (2022)
20. Spontaneous Formation of Outflows Powered by Rotating Magnetized Accretion Flows in a Galactic Center
  Shunsuke Takasao, Yuri Shuto, and Keiichi Wada
  Astrophysical Journal 926, 50 (2022)
21. The eROSITA Final Equatorial-Depth Survey (eFEDS): A multiwavelength view of WISE mid-infrared galaxies/active galactic nuclei
  Yoshiki Toba, Teng Liu, Tanya Urrutia, Mara Salvato, Junyao Li, Yoshihiro Ueda, Marcella Brusa, Naomichi Yutani, Keiichi Wada, Atsushi J. Nishizawa, Johannes Buchner, Tohru Nagao, Andrea Merloni, Masayuki Akiyama, Riccardo Arcodia, Bau-Ching Hsieh, Kohei Ichikawa, Masatoshi Imanishi, Kaiki T. Inoue, Toshihiro Kawaguchi, Georg Lamer, Kirpal Nandra, John D. Silverman, and Yuichi Terashima
  Astronomy & Astrophysics 661, A15 (2022)
22. The Galaxy Activity, Torus and Outflow Survey (GATOS): II. Torus and polar dust emission in nearby Seyfert galaxies
  A. Alonso-Herrero, S. García-Burillo, S. F. Hönig, I. García-Bernete, C. Ramos Almeida, O. González-Martín, E. López-Rodríguez, P. G. Boorman, A. J. Bunker, L. Burtscher, F. Combes, R. Davies, T. Díaz-Santos, P. Gandhi, B. García-Lorenzo, E. K. S. Hicks, L. K. Hunt, K. Ichikawa, M. Imanishi, T. Izumi, A. Labiano, N. A. Levenson, C. Packham, M. Pereira-Santaella, C. Ricci, D. Rigopoulou, P. Roche, D. J. Rosario, D. Rouan, T. Shimizu, M. Stalevski, K. Wada, and D. Williamson
  Astronomy & Astrophysics 652, A99 (2021)
23. The Galaxy Activity, Torus and Outflows Survey (GATOS). I. ALMA images of dusty molecular tori in Seyfert galaxies
  García-Burillo, S.; Alonso-Herrero, A.; Ramos Almeida, C.; González-Martín, O.; Combes, F.; Usero, A.; Hönig, S.; Querejeta, M.; Hicks, E. K. S.; Hunt, L. K.; Rosario, D.; Davies, R.; Boorman, P. G.; Bunker, A. J.; Burtscher, L.; Colina, L.; Díaz-Santos, T.; Gandhi, P.; García-Bernete, I.; García-Lorenzo, B.; Ichikawa, K.; Imanishi, M.; Izumi, T.; Labiano, A.; Levenson, N. A.; López-Rodríguez, E.; Packham, C.; Pereira-Santaella, M.; Ricci, C.; Rigopoulou, D.; Rouan, D.; Shimizu, T.; Stalevski, M.; Wada, K.; and Williamson, D.
  Astronomy & Astrophysics 652, A98 (2021)
24. Do gas clouds in narrow-line regions of Seyfert galaxies come from their nuclei?
  Kazuma Joh, Tohru Nagao, Keiichi Wada, Koki Terao, and Takuji Yamashita
  PASJ 73, 1152-1165 (2021)
25. Physically motivated X-ray obscurer models
  Johannes Buchner, Murray Brightman, Mislav Balokovic, Keiichi Wada, and Franz E. Bauer
  Astronomy & Astrophysics 651, A58 (2021)
26. Circumnuclear Multi-phase Gas in Circinus Galaxy IV: absorption owing to CO rotational transitions
  Taisei Uzuo, Keiichi Wada, Takuma Izumi, Shunsuke Baba, Kosei Matsumoto, and Yuki Kudoh
  Astrophysical Journal 915, 89 (2021)
27. Formation of "Blanets" from Dust Grains around the Supermassive Black Holes in Galaxies
  Keiichi Wada, Yusuke Tsukamoto, and Eiichiro Kokubo
  Astrophysical Journal 909, 96 (2021)
28. Multiphase Circumnuclear Gas in a Low-Beta Disk: Turbulence and Magnetic Field Reversals
  Yuki Kudoh, Keiichi Wada, and Colin A. Norman
  Astrophysical Journal 904, 9 (2020)
29. ALMA 0.''02-RESOLUTION OBSERVATIONS REVEAL HCN-ABUNDANCE-ENHANCED COUNTER-ROTATING AND OUTFLOWING DENSE MOLECULAR GAS AT THE NGC 1068 NUCLEUS
  Masatoshi Imanishi, Dieu D. Nguyen, Keiichi Wada, Yoshiaki Hagiwara, Satoru Iguchi, Takuma Izumi, Nozomu Kawakatu, Kouichiro Nakanishi, and Kyoko Onishi
  Astrophysical Journal 902, 99 (2020)
30. ALMA resolves the remarkable molecular jet and rotating wind in the extremely radio-quiet galaxy NGC 1377
  S. Aalto, N. Falstad, S. Muller, K. Wada, and 13 more
  Astronomy & Astrophysics 640, A104 (2020)
31. Mass accretion toward black holes in final phase of galaxy mergers
  Takeru Kawaguchi, Naomichi Yutani, and Keiichi Wada
  Astrophysical Journal 890, 125 (2020)
32. Obscuring Fraction of Active Galactic Nuclei Implied by Supernva and Radiative feedbacks
  Nozomu Kawakatsu, Keiichi Wada, and Kohhei Ichikawa
  Astrophysical Journal 889, 84 (2020)
33. Planet Formation around Supermassive Black Holes in Active Galactic Nuclei
  Keiichi Wada, Yusuke Tsukamoto, and Eiichiro Kokubo
  Astrophysical Journal 886, 107 (2019)
34. Magneto Rotational Instability in Magnetized AGN Tori
  Yuki Kudoh and Keiichi Wada
  Galaxies 6(4), 139 (2018)
35. Circumnuclear Multi-phase Gas in Circinus Galaxy II: A novel view of the molecular and atomic obscuring structures revealed with ALMA
  Takuma Izumi, Keiichi Wada, Ryosuke Fukushige, Sota Hamamura, and Kotaro Kohno
  Astrophysical Journal 867, 48 (2018)
36. Circumnuclear Multi-phase Gas in Circinus Galaxy III: Origin of the Narrow Line Regions
  Keiichi Wada, Kensuke Yonekura, and Tohru Nagao
  Astrophysical Journal 867, 49 (2018)
37. ALMA Reveals an Inhomogeneous Compact Rotating Dense Molecular Torus at the NGC 1068 Nucleus
  Imanishi, M., Nakanishi, K., Izumi, T., and Wada, K.
  Astrophysical Journal Letters 853, L25 (2018)
38. Circumnuclear Multi-phase Gas in Circinus Galaxy I: Non-LTE calculations of CO lines
  Keiichi Wada, Ryosuke Fukushige, Takuma Izumi, and Koji Tomisaka
  Astrophysical Journal 852, 88 (2018)
39. Cosmic Rays and Non-thermal Emission Induced by Accretion of Cool Gas onto the Galactic Disk
  Susumu Inoue, Yasunobu Uchiyama, Masanori Arakawa, Matthieu Renaud, and Keiichi Wada
  Astrophysical Journal 849, 22 (2017)
40. The life cycle of starbursting circumnuclear gas discs
  M. Schartmann, J. Mould, K. Wada, A. Burkert, M. Durré, M. Behrendt, R. I. Davies, and L. Burtscher
  MNRAS 473, 953-968 (2018)
41. Luminous, pc-scale CO 6-5 emission in the obscured nucleus of NGC 1377
  Aalto, S. et al.
  Astronomy and Astrophysics 608, A22 (2017)
42. On the disappearance of a cold molecular torus around the low-luminosity active galactic nucleus of NGC 1097
  T. Izumi et al.
  Astrophysical Journal Letters 845, L5 (2017)
43. Multi-phase Nature of a Radiation-Driven Fountain with Nuclear Starburst in a Low-mass Active Galactic Nucleus
  Keiichi Wada, Marc Schartmann, and Rowin Meijerink
  Astrophysical Journal Letters 828, L19 (2016)
44. A precessing molecular jet signaling an obscured, growing supermassive black hole in NGC1377?
  S. Aalto, F. Costagliola, S. Muller, K. Sakamoto, J. S. Gallagher, 1, K. Dasyra, K. Wada, F. Combes, S. García-Burillo, L. Kristensen, S. Martín, P. van der Werf, A. S. Evans, and J. Kotilainen
  Astronomy and Astrophysics 590, A73 (2016)
45. Radiation Hydrodynamic Simulations of Line-Driven Disk Winds for Ultra Fast Outflows
  Mariko Nomura, Ken Ohsuga, Hiroyuki R. Takahashi, and Keiichi Wada
  Publications of the Astronomical Society of Japan 68, 16 (2016)
46. Obscuring Fraction of Active Galactic Nuclei: Implications from Radiation-driven Fountain Models
  Keiichi Wada
  Astrophysical Journal 812, 82 (2015)
47. Time-resolved infrared emission from radiation-driven central obscuring structures in Active Galactic Nuclei
  M. Schartmann, K. Wada, M. A. Prieto, A. Burkert, and K. R. W. Tristram
  MNRAS 445, 3878 (2014)
48. Dynamics of Non-Steady Spiral Arms in Disk Galaxies
  Junichi Baba, Takayuki R. Saitoh, and Keiichi Wada
  Astrophysical Journal 763, 46 (2013)
49. Modeling Line-Driven Disk Wind for Broad Absorption Lines of Quasars
  Mariko NOMURA, Ken OHSUGA, Keiichi WADA, Hajime SUSA, and Toru MISAWA
  PASJ 65, 40 (2013)
50. Radiation-driven Fountain and Origin of Torus around Active Galactic Nuclei
  Keiichi Wada
  Astrophysical Journal 758, 66 (2012)
51. ORIGIN OF MULTIPLE NUCLEI IN ULTRALUMINOUS INFRARED GALAXIES
  Hidenori Matsui, Takayuki R. Saitoh, Junichiro Makino, Keiichi Wada, Kohji Tomisaka, Eiichiro Kokubo, Hiroshi Daisaka, Takashi Okamoto, and Naoki Yoshida
  Astrophysical Journal 746, 26 (2012)
52. Analysis of H2O Masers in Sharpless 269 using VERA Archival Data --- Distribution of the Masers and Their Time Variations
  M. Miyoshi, Y. Asaki, K. Wada, and H. Imai
  New Astronomy 17, 553-564 (2012)
53. Nuclear Star-Forming Ring of the Milky Way: Simulations
  Sungsoo Kim, Takayuki Saitoh, Myoungwon Jeon, Donald F. Figer, David Merritt, and Keiichi Wada
  Astrophysical Journal Letters 735, L11-15 (2011)
54. Interplay between Stellar Spirals and the ISM in Galactic Disks
  K. Wada, J. Baba, and T. R. Saitoh
  Astrophysical Journal 735, 1 (2011)
55. The Dynamics of Pure Stellar Galactic Disks with Spiral Arms
  M. Fujii, J. Baba, T. R. Saitoh, J. Makino, E. Kokubo, and K. Wada
  Astrophysical Journal 730, 109 -- 122 (2011)
56. The Structure and Dynamics of an AGN torus: CO line predictions for ALMA from 3D hydrodynamical simulations with X-ray driven chemistry
  J. P. Perez-Beaupuits, M. Spaans, and K. Wada
  Astrophysical Journal 730, 48 (2011)
57. On the Interpretation of the l-v Features in the Milky Way Galaxy
  J. Baba, T. R. Saitoh, and K. Wada
  Publications of the Astronomical Society of Japan 62, 1413-1422 (2010)
58. Formation of High-redshift (z > 6) Quasars Driven by Nuclear Starbursts
  N. Kawakatu and K. Wada
  Astrophysical Journal 706, 676--686 (2009)
59. The origin of large peculiar motions of star-forming regions and spiral structures of our Galaxy
  J. Baba, Y. Asaki, J. Makino, M. Miyoshi, T. R. Saitoh, and K. Wada
  Astrophysical Journal 706, 471-481 (2009)
60. Molecular Gas Disk Structures around AGNs
  K. Wada, P. Papadopoulos, and M. Spaans
  Astrophysical Journal 702, 63-74 (2009)
61. Toward first-principle simulations of galaxy formation: II. Shock-induced starburst at a collision interface during the first encounter of interacting galaxies
  Takayuki R. Saitoh, Hiroshi Daisaka, Eiichiro Kokubo, Junichiro Makino, Takashi Okamoto, Kohji Tomisaka, Keiichi Wada, and Naoki Yoshida
  PASJ 61, 481-486 (2009)
62. Coevolution of Supermassive Black Holes and Circumnuclear Disks
  Nozomu Kawakatu and Keiichi Wada
  Astrophysical Journal 681, 73--83 (2008)
63. Toward first-principle simulations of galaxy formation: I. How should we choose star formation criteria in high-resolution simulations of disk galaxies?
  Takayuki R. Saitoh, Hiroshi Daisaka, Eiichiro Kokubo, Junichiro Makino, Takashi Okamoto, Kohji Tomisaka, Keiichi Wada, and Naoki Yoshida
  PASJ 60, 667 -- 681 (2008)
64. Instabilities of Spiral Shocks -- II. A quasi-steady State in the multi-phase inhomogeneous ISM
  Keiichi Wada
  Astrophysical Journal 674, 188 -- 193 (2008)
65. HCN to HCO+ Millimeter Line Diagnostics of AGN Molecular Torus I: Radiative Transfer Modeling
  Masako Yamada, Keiichi Wada, and Kohji Tomisaka
  Astrophysical Journal 671, 73-84 (2007)
66. Origin of Warm High-Velocity Dense Gas in ULIRGs
  Keiichi Wada
  PASJ 59, 711-716 (2007)
67. Density structure of the interstellar medium and the star formation rate in galactic disks
  Keiichi Wada and Colin Norman
  Astrophysical Journal 660, 276-287 (2007)
68. Tidal Disruption of Dark Matter Halos around Proto-globular Clusters
  Takayuki R. Saitoh, Jin Koda, Takashi Okamoto, Keiichi Wada, and Asao Habe
  Astrophysical Journal 640, 22-30 (2006)
69. High-Resolution Simulations of a Lunar-Forming Impact and Post-Impact Evolution
  Keiichi Wada, Eiichiro Kokubo, and Junichiro Makino
  Astrophysical Journal 638, 1180-1186 (2006)
70. Growth of Intermediate Massive Black Holes in the Hierarchical Formation of Small Spiral Galaxies in the High-z Universe
  Nozomu Kawakatu, Takayuki R. Saitoh, and Keiichi Wada
  Astrophysical Journal 628, 129-136 (2005)
71. Simulating Astro-E2 observations of Galaxy Clusters: In the case of turbulent cores affected by Tsunamis
  Yutaka Fujita, Tomoaki Matsumoto, Keiichi Wada, and Tae Furusho
  Astrophysical Journal 619, L139-L142 (2005)
72. Molecular gas structure around an AGN with nuclear starburst: 3-D Non-LTE calculations of CO lines
  Keiichi Wada and Kohji Tomisaka
  Astrophysical Journal 619, 93-104 (2005)
73. Coevolution of the Galactic Cores and Spiral Galaxies
  Takayuki R. Saitoh and Keiichi Wada
  Astrophysical Journal 615, L93-L96 (2004)
74. Comparison of Nuclear Starburst Luminosities between Seyfert 1 and 2 Galaxies Based on Near-infrared Spectroscopy
  Masatoshi Imanishi and Keiichi Wada
  Astrophysical Journal 617, 214 (2004)
75. Strong turbulence in the Cool Cores of Galaxy Clusters: Can Tsunamis Solve the Cooling Flow Problem?
  Yutaka Fujita, Tomoaki Matsumoto, and Keiichi Wada
  Astrophysical Journal 612, L9-L12 (2004)
76. Instabilities of Spiral Shocks I: Onset of Wiggle Instability and its Mechanism
  Keiichi Wada and Jin Koda
  MNRAS 349, 270-280 (2004)
77. Tsunamis in Galaxy Clusters: Heating of Cool Cores by Acoustic Waves
  Yutaka Fujita, Takaru K. Suzuki, and Keiichi Wada
  Astrophysical Journal 600, 650-656 (2004)
78. Molecular Hydrogen in Damped Ly alpha Systems: Spatial Distribution
  H. Hirashita, A. Ferrara, K. Wada, and P. Richter
  MNRAS 341, L18 - L22 (2003)
79. Feedback From the First Supernovae in Protogalaxies: The Fate of the Generated Metals
  Keiichi Wada and Aparna Venkatesan
  Astrophysical Journal 591, 38 - 42 (2003)
80. Intrinsic Errors of the Central Galactic Mass Derived from Rotation Curves under the Influence of a Weak Non-axisymmetric Potential
  Jin Koda and Keiichi Wada
  A&A 396, 867 - 876 (2002)
81. Gravity-Driven Turbulence in Galactic Disks
  Keiichi Wada, Gerhardt Meurer, and Colin A. Norman
  Astrophysical Journal 577, 197 - 205 (2002)
82. Obscuring Material around Seyfert Nuclei with Starbursts
  Keiichi Wada and Colin Norman
  Astrophysical Journal 566, L21-24 (2002)
83. Multi-Phase Gas Dynamics in a Weak Barred Potential
  Keiichi Wada and Jin Koda
  PASJ 53, 1163-1170 (2001)
84. The Three-dimensional Structure of a Massive Gas Disk in the Galactic Central Region
  Keiichi Wada
  Astrophysical Journal 559, L41-44 (2001)
85. Millimetric Observations of the Center of M81: A Starved Nucleus with Intraday Variability
  Kazushi Sakamoto, Hiroyuki Fukuda, Keiichi Wada, and Asao Habe
  AJ 122, 1319-1329 (2001)
86. Numerical Models of the Multi-phase ISM with Stellar Energy Feedback on a Galactic Scale
  Keiichi Wada and Colin Norman
  Astrophysical Journal 546, 172-186 (2001)
87. Formation of Cavities, Filaments, and Clumps by the Non-linear Development of Thermal and Gravitational Instabilities in the Interstellar Medium under Stellar Energy Feedback
  Keiichi Wada, Marco Spaans, and Sungeun Kim
  Astrophysical Journal 540, 797-807 (2000)
88. Nuclear Bar, Star Formation and Gas Fueling in the Active Galacy NGC 4303
  Luis Colina and Keiichi Wada
  Astrophysical Journal 529, 845-852 (2000)
89. A Unified Scaling Law in Spiral Galaxies
  Jin Koda, Yoshiaki Sofue, and Keiichi Wada
  Astrophysical Journal 531, L17-L20 (2000)
90. On the Origin of the Tully-Fisher Relation
  Jin Koda, Yoshiaki Sofue, and Keiichi Wada
  Astrophysical Journal 532, 214-220 (2000)
91. The Effect of Self-Gravity of Gas Fueling in Barred Galaxies with a Supermassive Black Hole
  Hiroyuki Fukuda, Asao Habe, and Keiichi Wada
  Astrophysical Journal 529, 109-118 (2000)
92. The Global Structure and Evolution of a Self-Gravitating Multi-Phase Interstellar Medium in a Galactic Disk
  Keiichi Wada and Colin A. Norman
  Astrophysical Journal 516, L13-L16 (1999)
93. Formation of Plumes in the Head-on Collisions of Galaxies
  Toshio Tsuchiya, Vladimir Korchagin, and Keiichi Wada
  Astrophysical Journal 505, 607-620 (1998)
94. The Effect of a Central Supermassive Black Hole on the Gas Fueling
  Hiroyuki Fukuda, Keiichi Wada, and Asao Habe
  MNRAS 295, 463-474 (1998)
95. Numerical Modeling for the Gaseous and Stellar Structure of the Central Region of NGC 4321
  Keiichi Wada, Kazushi Sakamoto, and Takeo Minezaki
  Astrophysical Journal 494, 236-246 (1998)
96. The Nuclear Starburst Driven by a Black Hole Binary
  Yoshiaki Taniguchi and Keiichi Wada
  Astrophysical Journal 469, 581-590 (1996)
97. Effects of the Starbursts on the Structure of Young Galaxies
  Keiichi Wada, Asao Habe, and Yoshiaki Sofue
  PASJ 47, 1- 15 (1995)
98. Bar-driven fueling to the galactic center in a massive gas disk
  Keiichi Wada and Asao Habe
  MNRAS 277, 433 - 444 (1995)
99. Bar-driven Gas Structure and Starformation in the Center of M100
  Kazushi Sakamoto, Sachiko Okumura, Takeo Minezaki, Yukiyasu Kobayashi, and Keiichi Wada
  AJ 110, 2075-2087 (1995)
100. Gasdynamical approach to a face-on view of the Milkyway
  Keiichi Wada, Yoshiaki Taniguchi, Asao Habe, and Tetsuo Hasegawa
  Astrophysical Journal 437, L123-L125 (1994)
101. Gaseous Orbits in a Weak Bar Potential: Bar-driven Spirals and the Effects of Resonances
  Keiichi Wada
  PASJ 46, 165-172 (1994)
102. Rapid Gas Supply to a Nuclear Region by Self-Gravitational Instability in a Weak Barred Potential
  Keiichi Wada and Asao Habe
  MNRAS 258, 82 - 94 (1992)
Others
1. Global Structure of the Interstellar Matter Revealed by High Resolution Hydrodynamical Simulations
  Keiichi Wada
  Annual Report of the National Astronomical Observatory of Japan, vol.2, 43 (1999)
Conference Proceedings
1. Numerical Modeling of the ISM in the Galactic Center and Disks
  Keiichi Wada and Colin A. Norman
  Mapping the Galaxy and nearby galaxies, Astrophysics and Space Science Proceedings (2004)
2. Evolution of the galactic cores and structure of the molecular gas tori
  Keiichi Wada, Takayuki R. Saitoh, and Kohji Tomisaka
  IAU Sympo 222, The interplay among black holes, stars, and ISM in galactic nuclei, p.401-406 (2004)
3. The Neutral ISM in Starburst Galaxies
  Keiichi Wada and Kohji Tomisaka
  ASP Conference Series, Vol. 320, p.262-265 (2004)
4. Spatial Distribution of Molecules in Dampled Lyman-alpha Clouds
  H. Hirashita, A. Ferrara, K. Wada, and P. Richter
  Multiwavelength Cosmology, ed. M. Plionis et al. (Kluwer: Dordrecht), 2003
5. Molecules in Damped Lyman-alpha Systems: Spatial Distribution
  H. Hirashita, A. Ferrara, K. Wada, and P. Richter
  Elemental Abundances in Old Stars & Damped Lyman alpha Systems, IAU JD15, 2003
6. Fueling Gas to the Central Region of Galaxies
  Keiichi Wada
  Carnegie Observatories Astrophysics Series, Vol. 1 (2003)
7. Computer Center at NAOJ: Supercomputing Facilities and Products
  Keiichi Wada
  Numerical Simulations in Astronomy 2002, Ed. T. Suzuki, p.1-6 (2003)
8. Obscuring Material around the Central Engine with Starbursts
  Keiichi Wada
  Active Galactic Nuclei: from Central Engine to Host Galaxy, ASP Conference Series, Vol. 290, p.261-262 (2003)
9. The Starburst-AGN Connection: 3-D Structure of the Massive Gas Disk around the Nucleus
  Keiichi Wada and Colin A. Norman
  IAU Sympo. 208: Astrophysical Supercomputing using Particle Simulations, p.463-464 (2003)
10. Two and Three dimensional structure of the Inhomogenous Gas Dynamics in the Central Kpc
  Keiichi Wada
  The central kpc of starbursts and AGN: the La Palma connection, ASP conf. series, Vol. 249, p.679-685 (2001)
11. Probability of Overestimating Central Galactic Mass Using Rotation Curves
  Jin Koda and Keiichi Wada
  The central kpc of starbursts and AGN: the La Palma connection, ASP conf. series, Vol. 249, p.383-386 (2001)
12. Gas Dynamics and Fueling Processes in the R < 0.1-1 kpc Region
  Keiichi Wada and Hiroyuki Fukuda
  The Physics of Galaxy Formation, eds. M. Umemura & H. Susa, ASP conference series, p.261-266 (2001)
13. Stellar Feedback to Global Structure of the Interstellar Matter
  Keiichi Wada
  RIKEN Review No. 25, p.106 (1999)
14. Global Star Formation in the Multi-Phase ISM
  Keiichi Wada, Marco Spaans, Sungeun Kim, and Colin A. Norman
  Star Formation 1999, ed. T. Nakamoto, Nobeyama Radio Observatory, p.36-37 (1999)
15. Evolution of a Cloud System in a Gas Rich Dwarf Galaxy
  Asao Habe, T. Tokumaru, Hiroyuki Fukuda, and Keiichi Wada
  Star Formation 1999, ed. T. Nakamoto, Nobeyama Radio Observatory, p.38-39 (1999)
16. Effects of a Supermassive Black Hole on Nuclear Gas Dynamics
  Hiroyuki Fukuda, Keiichi Wada, and Asao Habe
  Star Formation 1999, ed. T. Nakamoto, Nobeyama Radio Observatory, p.42-43 (1999)
17. Global Evolution of a Self-Gravitating Multi-Phase ISM in the Central Kpc Region of Galaxies
  Keiichi Wada and Colin A. Norman
  The Formation of Bulges, eds. Carollo et al., Cambridge University Press, p.152-156 (1999)
18. EVOLUTION OF A SELF-GRAVITATING MULTI-PHASE ISM
  Keiichi Wada and Colin A. Norman
  XXXIIIrd Rencontres de Moriond, Dwarf Galaxies and Cosmology, p.467-470 (1998)
19. How to Determine the Smoothing Length in SPH?
  Jin Koda, Yoshiaki Sofue, and Keiichi Wada
  Numerical Astrophysics, eds. Miyama et al., Kluwer Academic Publishers, p.391-392 (1998)
20. The Effect of Self-Gravity of Gas on Gas Fuelling in the Barred Galaxy with a Supermassive Black Hole
  Hiroyuki Fukuda, Asao Habe, and Keiichi Wada
  Numerical Astrophysics, eds. Miyama et al., Kluwer Academic Publishers, p.71-72 (1998)
21. A NEW FORMATION MECHANISM OF NUCLEAR STARBURSTS
  Yoshiaki Taniguchi, Keiichi Wada, and T. Murayama
  Revista Mexicana de Astronomia y Astrofisica Serie de Conferencias, Vol. 6, p.240 (1997)
22. Formation of Gaseous Plums in the Head-on Collisions of Galaxies
  V. Korchagin, Toshio Tsuchiya, and Keiichi Wada
  IAU Symposium 186, Galaxy Interactions at Low and High Redshift, p.283 (1997)
23. Triggered starbursts in galactic nuclei and mergers
  Yoshiaki Taniguchi, Keiichi Wada, T. Murayama, and Y. Shioya
  IAU Symposium 186, Galaxy Interactions at Low and High Redshift, p.307-310 (1997)
24. The Effect of a Central Massive Black Hole on the Gas Fueling
  Hiroyuki Fukuda, Keiichi Wada, and Asao Habe
  IAU Symposium 184, The Central Regions of the Galaxy and Galaxies, p.485-486 (1997)
25. Hydrodynamical Simulation as a Probe for Galactic Structure
  Keiichi Wada, Kazushi Sakamoto, and Takeo Minezaki
  IAU Symposium 184, The Central Regions of the Galaxy and Galaxies, p.271-272 (1997)
26. Position-velocity diagrams as a probe of the bar in edge-on galaxies
  Keiichi Wada, Tetsuo Hasegawa, Yoshiaki Sofue, Yoshiaki Taniguchi, and Asao Habe
  IAU Symposium 169, Unsolved Problems of the Milky Way, ed. L. Blitz, 147 (1996)
27. A new fueling process in a weak bar
  Keiichi Wada and Asao Habe
  IAU Colloquim 157, Barred Galaxies, ASP Conference Series, vol. 91, p.439-444 (1995)
28. Gasdynamical approach to the face-on view of our Galaxy
  Keiichi Wada, Yoshiaki Taniguchi, Asao Habe, and Tetsuo Hasegawa
  IAU Colloquim 157, Barred Galaxies, ASP Conference Series, vol. 91, p.554-556 (1995)
29. Gas dynamics and active phenomena in galactic nuclei: M100 and M94
  Kazushi Sakamoto, Takeo Minezaki, Keiichi Wada, Sachiko Okumura, and Yukiyasu Kobayashi
  IAU Colloquim 157, Barred Galaxies, ASP Conference Series, vol. 91, p.247-248 (1995)
30. Self-gravitating gas dynamics in a nuclear region of a weak barred galaxy
  Keiichi Wada and Asao Habe
  IAU colloquim 140: Astronomy with Millimeter and Submillimeter Wave Interferometry, ASP Conference Series vol. 59, p.351-352 (1994)
31. Self-gravitgating gas dynamics in a galactic central region
  Keiichi Wada and Asao Habe
  Mass transfer induced activity in galaxies, ed. I. Shlosman, Cambridge Univ. Press, p.284-288 (1994)
32. Primeval Starburst and bulge formation
  Keiichi Wada and Asao Habe
  IAU symposium 153: Galactic Bulges, Kluwer Academic Publishers, p.285-286 (1993)
33. Rapid gas fueling in a barred potential by self-gravitational instability
  Keiichi Wada and Asao Habe
  IAU symposium 153: Galactic Bulges, Kluwer Academic Publishers, p.397-398 (1993)
34. SELF-GRAVITATING GAS DYNAMICS IN BARRED SPIRALS AND GAS ACCUMULATION PROCESS INTO THE GALACTIC CENTER
  Asao Habe, Keiichi Wada, and K. Ohta
  IAU Symposium 146, Dynamics of Galaxies and Their Molecular Cloud Distributions, Kluwer Academic Publishers, p.263 (1991)