Publications

1. Refereed Journals (submitted)
   1. Physically motivated X-ray obscurer models Johannes Buchner, Murray Brightman4, Mislav Balokov, Keiichi Wada, Franz E. Bauer, submitted to Astronomhy & Astrophysics
   2. Do gas clouds in narrow-line regions of Seyfert galaxies come from their nuclei? Joh Kazuma, Nagao Tohru, Wada Keiichi, Terao Koki, Yamashita Takuji
      submitted to PASJ
2. Refereed Journals (published)
   1. Formation of ``Blanets" from Dust Grains around the Supermassive Black Holes in Galaxies
      Keiichi Wada, Yusuke Tsukamoto, Eiichiro Kokubo, ApJ in press
   2. Multiphase Circumnuclear Gas in a Low-Beta Disk: Turbulence and Magnetic Field Reversals
      Yuki Kudoh, Keiichi Wada, Colin A. Norman ,
      , ApJ 904, 9 (2020)
   3. 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, ApJ 902, 99 (2020)
   4. ALMA resolves the remarkable molecular jet and rotating wind in the extremely radio-quiet galaxy NGC 1377
      Aalto, S., Falstad, N., Muller, S., Wada, K. and 13 more A&Ap 640, 104(2020)
   5. Mass accretion toward black holes in final phase of galaxy mergers, Takeru Kawaguchi, Naomichi Yutani, Keiichi Wada
      ApJ 890, 125 (2020)
   6. Obscuring Fraction of Active Galactic Nuclei Implied by Supernva and Radiative feedbacks,
      Nozomu Kawakatsu, Keiichi Wada , Kohhei Ichikawa,
      ApJ 889, 84 (2020)
   7. Planet Formation around Supermassive Black Holes in Active Galactic Nuclei
      Keiichi Wada, Yusuke Tsukamoto, Eiichiro Kokubo,
      ApJ 886, 107 (2019)
   8. Magneto Rotational Instability in Magnetized AGN Tori,
      Yuki Kudoh, Keiichi Wada, Galaxies as part of the Special Issue "The Power of Faraday Tomography", in press arXiv:1812.08419
   9. Circumnuclear Multi-phase Gas in Circinus Galaxy II: A novel view of the molecular and atomic obscuring strucgtures revealed with ALMA
      , Takuma Izumi, Keiichi Wada, Ryosuke Fukushige, Sota Hamamura, Kotaro Kohno,
      ApJ 867, 48 (20pp) (2018)
   10. Circumnuclear Multi-phase Gas in Circinus Galaxy III: Origin of the Narrow Line Regions"
       Keiichi Wada, Kensuke Yonekura, and Tohru Nagao,
       ApJ 867, 49 (7pp) (2018)
   11. ALMA Reveals an Inhomogeneous Compact Rotating Dense Molecular Torus at the NGC 1068 Nucleus
       , Imanishi, M., Nakanishi, K., Izumi, T., Wada, K.,
       ApJL 853, L25 (2018)
   12. Circumnuclear Multi-phase Gas in Circinus Galaxy I: Non-LTE calculations of CO lines
       , Keiichi Wada, Ryosuke Fukushige, Takuma Izumi, Koji Tomisaka,
       Astrophysical Journal, 852, 88 (11pp) (2018)
   13. Cosmic Rays and Non-thermal Emission Induced by Accretion of Cool Gas onto the Galactic Disk
       , Susumu Inoue, Yasunobu Uchiyama, Masanori Arakawa, Matthieu Renaud, Keiichi Wada
       , ApJ 849, 22 (2017) arXiv:1708.08574
   14. The life cycle of starbursting circumnuclear gas discs,
       M. Schartmann, J. Mould, K. Wada, A. Burkert, M. Durré, M. Behrendt, R. I. Davies, L. Burtscher
       , MNRAS 473, 953 (2018)
   15. Luminous, pc-scale CO 6-5 emission in the obscured nucleus of NGC 1377,
       Aalto, S. et al.
       , Astronomy and Astrophysics 608, A22 (2017) airxiv: 1707.05806
   16. On the disappearance of a cold molecular torus around the low-luminosity active galactic nucleus of NGC 1097
       , Izumi, T. et al.,
       ApJ Letters, 845, L5
   17. Multi-phase Nature of a Radiation-Driven Fountain with Nuclear Starburst in a Low-mass Active Galactic Nucleus
       , Keiichi Wada, Marc Schartmann, Rowin Meijerink,
       Astrophysical Journal Letters, 828, L19 (2016)
   18. 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,
       Astrnomy and Astrophysics, 590, A73
   19. 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, Volume 68, Issue 1, id.1616 pp (2016), arxiv:1511.08815 ,
       
   20. Obscuring Fraction of Active Galactic Nuclei: Implications from Radiation-driven Fountain Models
       , Keiichi Wada ApJ 812, 82 (2015) (arXiv:1509.00576)
   21. 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)
   22. Dynamics of Non-Steady Spiral Arms in Disk Galaxies ,
       Junichi Baba, Takayuki R. Saitoh, and Keiichi Wada , ApJ, 763, 46 (2013)
   23. 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)
   24. Radiation-driven Fountain and Origin of Torus around Active Galactic Nuclei,
       Keiichi Wada , ApJ 758, 68(10p) (2012)
   25. 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, & Naoki Yoshida, ApJ 746, 26 (2012)
   26. Analysis of H2O Masers in Sharpless 269 using VERA Archival Data --- Distribution of the Masers and Their Time Variations ,
       Miyoshi, M., Asaki, Y., Wada, K., and Imai, H., New Astronomy 17, 553-564 (2012)
   27. Nuclear Star-Forming Ring of the Milky Way: Simulations
       Sungsoo Kim, Takayuki Saitoh, Myoungwon Jeon, Donald F. Figer, David Merritt, and Keiichi Wada, ApJL 735, L11-15 (2011)
   28. Interplay between Stellar Spirals and the ISM in Galactic Disks,
       K.Wada, J. Baba, T.R. Saitoh, ApJ 735, 1 (2011)
   29. The Dynamics of Pure Stellar Galactic Disks with Spiral Arms,
       Fujii, M., Baba, J., Saitoh, T.R., Makino, J., Kokubo, E., Wada, K., ApJ 730, 109 -- 122 (2011)
   30. The Structure and Dynamics of an AGN torus: CO line predictions for ALMA from 3D hydrodynamical simulations with X-ray driven chemistry ,
       J.P. Pe ́rez-Beaupuits, M. Spaans, K. Wada,
       ApJ 730, 48 (2011)
   31. On the Interpretation of the l-v Features in the Milky Way Galaxy, Baba, J, Saitoh, T.R., Wada, K., Publ. Astron. Soc. Japan 62, pp.1413-1422 (2010)
   32. Formation of High-redshift (z>6) Quasars Driven by Nuclear Starbursts , Kawakatu, N., Wada, K., ApJ 706, 676--686 (2009)
   33. The origin of large peculiar motions of star-forming regions and spiral structures of our Galaxy , Baba, Asaki, Makino, Miyoshi, Saitoh, Wada, K., ApJ, 706, 471-481 (2010)
   34. Molecular Gas Disk Strucutres around AGNs , Wada, K. , Papadopoulos, P., Spaans, M., ApJ 702, 63-74 (2009)
   35. Toward first-principle simulations of galaxy formation: II. Shock-induced starburst at 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 , Naoki Yoshida,
       PASJ, 61, 481-486 (2009)
       
   36. Coevolution of Supermassive Black Holes and Circumnuclear Disks
       Nozomu Kawakatu, Keiichi Wada , ApJ 681, 73--83 (2008)
   37. 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 , Naoki Yoshida, PASJ 60, 667 -- 681 (2008)
   38. Instabilities of Spiral Shocks -- II. A quasi-steady State in the multi-phase inhomogeneous ISM
       Keiichi Wada , ApJ 674, 188 -- 193 (2008)
   39. HCN to HCO+ Millimeter Line Diagnostics of AGN Molecular Torus I: Radiative Transfer Modeling
       Masako Yamada, Keiichi Wada , Kohji Tomisaka, ApJ, 671, 73-84 (2007)
   40. Origin of Warm High-Velocity Dense Gas in ULIRGs
       Keiichi Wada , PASJ, 59, 711-716 (2007)
   41. Density structure of the interstellar medium and the star formation rate in galactic disks
       Keiichi Wada , Colin Norman
       ApJ, 660, 276-287 (2007)
   42. Tidal Disruption of Dark Matter Halos around Proto-globular Clusters
       Takayuki R. Saitoh, Jin Koda, Takashi Okamoto, Keiichi Wada, Asao Habe
       ApJ, 640, 22-30 (2006)
   43. High-Resolution Simulations of a Lunar-Forming Impact and Post-Impact Evolution
       Keiichi Wada, Eiichiro Kokubo, Junichiro Makino
       ApJ 638, 1180-1186 (2006)
   44. Growth of Intermediate Massive Black Holes in the Hierarchical Formation of Small Spiral Galaxies in the High-z Universe
       Nozomu Kawakatu, Takayuki R. Saitoh, Keiichi Wada
       ApJ 628, 129-136 (2005)
   45. 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
       ApJ 619, L139-L142 (2005)
   46. Molecular gas structure around an AGN with nuclear starburst: 3-D Non-LTE calculations of CO lines
       Keiichi Wada, Kohji Tomisaka
       ApJ. 619, 93-104 (2005)
   47. Coevolution of the Galactic Cores and Spiral Galaxies
       Takayuki R. Saitoh, Keiichi Wada
       ApJ 615 L93-L96 (2004)
   48. Comparison of Nuclear Starburst Luminosities between Seyfert 1 and 2 Galaxies Based on Near-infrared Spectroscopy
       Masatoshi Imanishi, Keiichi Wada
       ApJ 617, 214 (2004)
   49. Strong turbulence in the Cool Cores of Galaxy Clusters: Can Tsunamis Solve the Cooling Flow Problem?
       Yutaka Fujita, Tomoaki Matsumoto, Keiichi Wada
       ApJ 612, L9-L12 (2004)
   50. Instabilities of Spiral Shocks I: Onset of Wiggle Instability and its Mechanism
       Keiichi Wada, Jin Koda
       MNRAS 349, 270-280 (2004)
   51. Tsunamis in Galaxy Clusters: Heating of Cool Cores by Acoustic Waves
       Yutaka Fujita, Takaru K. Suzuki, Keiichi Wada ,
       ApJ 600,650-656 (2004)
   52. Molecular Hydrogen in Damped Ly alpha Systems: Spatial Distribution
       Hirashita,H., Ferrara, A., Wada, K., Richter, P.
       MNRAS, 341, L18 - L22 (2003)
   53. Feedback From the First Supernovae in Protogalaxies: The Fate of the Generated Metals
       Keiichi Wada, and Aparna Venkatesan,
       ApJ, 591, 38 - 42 (2003)
       
   54. 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&Ap 396, 867 - 876 (2002)
   55. Gravity-Driven Turbulence in Galactic Disks
       Keiichi Wada, Gerhardt Meurer, Colin A. Norman
       ApJ 577, 197 - 205 (2002)
       
   56. Obscuring Material around Seyfert Nuclei with Starbursts
       Keiichi Wada, Colin Norman,
       ApJ, 566, L21-24 (2002)
   57. Multi-Phase Gas Dynamics in a Weak Barred Potential
       Keiichi Wada and Jin Koda
       PASJ 53, 1163-1170 (2001)
       Erratum
   58. The Three-dimensional Structure of a Massive Gas Disk in the Galactic Central Region
       Keiichi Wada
       ApJ 559, L41-44 (2001)
   59. 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) (1)
   60. Numerical Models of the Multi-phase ISM with Stellar Energy Feedback on a Galactic Scale
       Keiichi Wada, and Colin Norman,
       ApJ, 546, 172-186 (2001)
       gziped ps file
   61. 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
       ApJ, 540, 797-807 (2000)
       
   62. Nuclear Bar, Star Formation and Gas Fueling in the Active Galacy NGC 4303
       Luis Colina, Keiichi Wada
       ApJ, 529, 845-852 (2000)
   63. A Unified Scaling Law in Spiral Galaxies
       Jin Koda, Yoshiaki Sofue, Keiichi Wada
       ApJ, 531, L17-L20 (2000)
   64. On the Origin of the Tully-Fisher Relation
       Jin Koda, Yoshiaki Sofue, Keiichi Wada
       ApJ, 532, 214-220 (2000)
   65. The Effect of Self-Gravity of Gas Fueling in Barred Galaxies with a Supermassive Black Hole
       Hiroyuki Fukuda, Asao Habe, Keiichi Wada,
       ApJ, 529, 109-118 (2000)
   66. The Global Structure and Evolution of a Self-Gravitating Multi-Phase Interstellar Medium in a Galactic Disk
       Keiichi Wada, Colin A. Norman,
       ApJ 516, L13-L16 (1999)
   67. Formation of Plumes in the Head-on Collisions of Galaxies.
       Toshio Tsuchiya, Vladimir Korchagin, Keiichi Wada,
       ApJ, 505, 607-620 (1998)
   68. The Effect of a Central Supermassive Black Hole on the Gas Fueling
       Hiroyuki Fukuda, Keiichi Wada, Asao Habe
       MNRAS, 295, 463-474 (1998)
   69. Numerical Modeling for the Gaseous and Stellar Structure of the Central Region of NGC 4321
       Keiichi Wada, Kazushi Sakamoto, Takeo Minezaki
       ApJ, 494, 236-246 (1998)
   70. The Nuclear Starburst Driven by a Black Hole Binary
       Yoshiaki Taniguchi, Keiichi Wada
       ApJ, 469, 581-590(1996)
   71. Effects of the Starbursts on the Structure of Young Galaxies
       Keiichi Wada, Asao Habe, Yoshiaki Sofue
       PASJ, 47, 1- 15 (1995)
   72. Bar-driven fueling to the galactic center in a massive gas disk
       Keiichi Wada, Asao Habe
       MNRAS, 277, 433 - 444 (1995)
   73. Bar-driven Gas Structure and Starformation in the Center of M100
       Kazushi Sakamoto, Sachiko Okumura, Takeo Minezaki, Kobayashi Yukiyasu, Keiichi Wada
       AJ, 110, 2075-2087 (1995)
   74. Gasdynamical approach to a face-on view of the Milkyway
       Keiichi Wada, Yoshiaki Taniguchi, Asao Habe, Tetsuo Hasegawa
       ApJ, 437, L123-L125 (1994)
   75. Gaseous Orbits in a Weak Bar Potential: Bar-driven Spirals and the Effects of Resonances
       Keiichi Wada,
       PASJ, 46, 165- 172 (1994)
   76. Rapid Gas Supply to a Nuclear Region by Self-Gravitational Instability in a Weak Barred Potentail
       Keiichi Wada, Asao Habe,
       MNRAS, 258, 82 - 94 (1992)
3. Others
   1. Wada Keiichi
      Annual Report of the National Astronomical Observatory of Japan
      vol.2, 1999, p.43
      Global Structure of the Interstellar Matter Revealed by High Resolution Hydrodynamical Simulations
      
4. Conference Proceedings
   1. Mapping the Galaxy and nearby galaxies Wada, K., Combes, F., Astrophysics and Space Science Proceedings "Numerical Modeling of the ISM in the Galactic Center and Disks " Wada, K. and Norman, C.A.
   2. Evolution of the galactic cores and structure of the molecular gas tori
      Wada, K., Saitoh, R. T., Kohji Tomisaka
      eds. T. Storchi Bergmann, L.C. Ho, H.R. Schmitt, The interplay among black holes, stars, and ISM in galactic nuclei., Cambridge University Press, p.p.401-406 (2004)
      preprint (pdf)
   3. Wada, K., Tomisaka, K.
      The NeutralISLM in Starburst Galaxies
      eds.S. Aalto, S. Huttenmeister, A. Pedler,
      ASP Conference Series, San Francisco, p.p. 262-265 (2004)
   4. Spatial Distribution of Molecules in Dampled Lyman-alpha Clouds
      Hirashita, H., Ferrara, A., Wada, K., Richter, P., 2003, in: Multiwavelength Cosmology, ed. M. Plionis et al. (Kluwer: Dordrecht), in press
   5. Molecules in Damped Lyman-alpha Systems: Spatial Distribution
      Hirashita, H., Ferrara, A., Wada, K., Richter, P., 2003, in: Elemental Abundances in Old Stars & Damped Lyman alpha Systems, IAU JD15, in press
   6. Fueling Gas to the Central Region of Galaxies
      Wada, K.
      Carnegie Observatories Astrophysics Series, Vol. 1: Coevolution of Black Holes and Galaxies, ed. L. C. Ho (Pasadena: Carnegie Observatories),
      Proceedings
      preprint (pdf file) preprint(ps.gz file)
      astro-ph/0308134
   7. Computer Center at NAOJ: Supercomputing Facilities and Products
      Wada, K.
      "Numerical Simulations in Astronomy 2002", Ed. T. Suzuki, p.p. 1-6, NAOJ, Tokyo (2003)
      preprint
   8. Obscuring Material around the Central Engine with Starbursts
      "Active Galactic Nuclei: from Central Engine to Host Galaxy", Eds. S. Collin, F. Combes, I. Shlosman, ASP Conference Series, Vol. 290, p.p. 261-262 (2003)
   9. The Starburst-AGN Connection: 3-D Structure of the Massive Gas Disk around the Nucleus
      Wada, K., Norman, C.A.
      "IAU Sympo. 208: Astrophysical Supercomputing using Particle Simulations", Eds. Fukushige, T., Makino, J. and Hut, P., ASP conference series, p.p. 463-464 (2003)
   10. Two and Three dimensional structure of the Inhomogenous Gas Dynamics in the Central Kpc
       Wada, K.
       ``The central kpc of starbursts and AGN: the La Palma connection'', Eds. J.H. Knapen, J.E. Beckman, I. Shlosman
       and T.J. Mahoney, ASP conf. series, Vol. 249 (2001), p.p. 679-685 (preprint, ps.gz)
   11. Probability of Overestimating Central Galactic Mass Using Rotation Curves
       Koda, J. and Wada, K.
       ``The central kpc of starbursts and AGN: the La Palma connection'', Eds. J.H. Knapen, J.E. Beckman, I. Shlosman
       and T.J. Mahoney, ASP conf. series, Vol. 249 (2001), p.p. 383-386
   12. Gas Dynamics and Fueling Processes in the R < 0.1-1 kpc Region
       Wada, K., and Fukuda, H.
       "The Physics of Galaxy Formation", eds. M. Umemura, & H. Susa, ASP conference series, p.p. 261-266, San Francisco (2001)
       
   13. Stellar Feedback to Global Structure of the Interstellar Matter
       Wada, K.
       RIKEN Review No. 25, p.106 (1999)
   14. Global Star Formation in the Multi-Phase ISM
       Wada, K. , Spaans, M., Kim, S., and Norman, C.
       "Star Formaion 1999", ed. T. Nakamoto, Nobeyama Radio Observatory, Nobeyama, p.p. 36-37
       
   15. Evolution of a Cloud System in a Gas Rich Dwarf Galaxy
       Habe, A., Tokumaru, T., Fukuda, H., Wada, K.
       "Star Formaion 1999", ed. T. Nakamoto, Nobeyama Radio Observatory, Nobeyama, p.p. 38-39
       
   16. Effects of a Supermassive Black Hole on Nuclear Gas Dynamics
       Fukuda, H., Wada, K. , Habe, A.
       "Star Formaion 1999", ed. T. Nakamoto, Nobeyama Radio Observatory, Nobeyama, p.p. 42-43
       
   17. Global Evolution of a Self-Gravitating Multi-Phase ISM in the Central Kpc Region of Galaxies
       Wada, K. and Norman, C.
       "The Formation of Bulges",
       eds. C.M. Carollo, H.C. Ferguson, and R.F.G. Wyse, 1999, p.p. 152-156,
       Cambridge University Press, Cambridge
       postscript file
   18. EVOLUTION OF A SELF-GRAVITATING MULTI-PHASE ISM
       Wada, K. and Norman, C.
       XXXIIIrd Rencontres de Moriond, "Dwarf Galaxies and Cosmology",
       eds.T.X. Thuan, C. Balkowski, V. Cayatte, and J. Tran Thanh Van, 1998, Frontieres, Paris, p.p 467-470
       preprint(gziped ps file)
   19. How to Determine the Smoothing Length in SPH?
       Koda, J., Sofue, Y., and Wada, K. in "Numerical Astrophysics", eds, S.M.Miyama, K.Tomisaka, and T.Hanawa
       Kluwer Academic Publishers, Dordrecht, p.p 391-392
   20. The Effect of Self-Gravity of Gas on Gas Fuelling in the Barred Galaxy with a Supermassive Black Hole
       Fukuda, H., Habe, A., and Wada, K.
       in "Numerical Astrophysics", eds, S.M.Miyama, K.Tomisaka, and T.Hanawa
       Kluwer Academic Publishers, Dordrecht, p.p 71-72
   21. A NEW FORMATION MECHANISM OF NUCLEAR STARBURSTS
       TANIGUCHI,Y.; WADA,K.; MURAYAMA,T.
       Revista Mexicana de Astronomia y Astrofisica Serie de Conferencias,
       Vol. 6, 1st Guillermo Haro Conference on Astrophysics:
       Starburst Activity in Galaxies, Puebla, Pue., Mexico,
       April 29-May 3, 1996, p. 240. (1997)
   22. Formation of Gaseous Plums in the Head-on Collisions of Galaxies
       KORCHAGIN, V.; TSUCHIYA, T.; WADA, K.
       IAU Symposium no. 186. Galaxy Interactions at Low and High Redshift. Kyoto, Japan, 17-30 August, 1997, p.283
   23. Triggered starbursts in galactic nuclei and mergers
       TANIGUCHI, Y.; WADA, K.; MURAYAMA, T.; SHIOYA, Y.
       IAU Symposium no. 186. Galaxy Interactions at Low and High Redshift. Kyoto, Japan, 17-30 August, 1997, p.p.307-310
   24. The Effect of a Central Massive Black Hole on the Gas Fueling
       FUKUDA, H.; WADA, K.; HABE, A.
       
       IAU Symposium no. 184. The Central Regions of the Galaxy and Galaxies. Kyoto, Japan, 17-30 August, 1997, p.p.485-486
   25. Hydrodynamical Simulation as a Probe for Galactic Structure
       WADA, KEIICHI ; SAKAMOTO, KAZUSHI ; MINEZAKI, TAKEO
       IAU Symposium no. 184. The Central Regions of the Galaxy and Galaxies. Kyoto, Japan, 17-30 August, 1997, p.p.271-272
   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, 147-147 (1996)
   27. A new fueling process in a weak bar
       Keiichi Wada and Asao Habe,
       IAU Colloquim 157 , "Barred Galaxies", ed. R.Buta, B.G.Elmegreen, D.A. Clocker Astronomical society of the Pacific conference series, vol. 91 Astronomical society of the Pacific, p.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", ed. R.Buta, B.G.Elmegreen, D.A. Clocker
       Astronomical society of the Pacific conference series, vol. 91 Astronomical society of the Pacific, p.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", ed. R.Buta, B.G.Elmegreen, D.A. Clocker Astronomical society of the Pacific conference series, vol. 91 Astronomical society of the Pacific, p.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, ed. M.Ishiguro and Wm.J. Welch, Astronomical Society of the Pacific, San Francisco p.p 351- 352 (1994) ASP Conference Series vol. 59
   31. Self-gravitgating gas dynamicsin a galactic central region
       Keiichi Wada and Asao Habe,
       Mass transfer induced activity in galaxies, ed. I. Shlosman Cambridge Univ. Press, Cambridge p.p 284 - 288 (1994)
   32. Primeval Starburst and bulge formation
       Keiichi Wada and Asao Habe,
       IAU symposium 153: Galactic Bulges, eds. H. Dejonghe and H.J. Habing, Kluwer Academic Publishers, Dordrecht, p.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, eds. H. Dejonghe and H.J. Habing, Kluwer Academic Publishers, Dordrecht, .p 397- 398 (1993).
   34. SELF-GRAVITATING GAS DYNAMICS IN BARRED SPIRALS AND GAS ACCUMULATION PROCESS INTO THE GALACTIC CENTER
       HABE, A.; WADA, K.; OHTA, K.
       in "Dynamics of Galaxies and Their Molecular Cloud Distributions: Proceedings of the 146th Symposium of the International Astronomical Union",
       eds.: F. Combes and Fabienne Casoli
       Kluwer Academic Publishers, Dordrecht, 1991., p.263