Takahashi & Kokubun Group

Publication

• Evolution of the Synchrotron Spectrum in Mrk 421 during the 1998 Campaign
  ( Chiharu Tanihata, Jun Kataoka, Tadayuki Takahashi, and Greg M. Madejski ApJ, 601, 2, pp. 759-770, 2004 )
• Implications of Variability Patterns observed in TeV Blazars on the Structure of the Inner Jet
  ( Chiharu Tanihata, Tadayuki Takahashi, Jun Kataoka, Greg M. Madejski, ApJ in press, 2002 )
• RXTE Observations of 3C273 between 1996 and 2000:Variability Timescale and Jet Power
  ( Jun Kataoka, Chiharu Tanihata, Nobuyuki Kawai, Fumio Takahara, Tadayuki Takahashi, Philip G. Edwards, Fumiyoshi Makino, MNRAS in press, 2002 )
• Chandra Observations and Optical Identification of Hard X-ray Sources Discovered with ASCA
  ( Shin Watanabe, Masayuki Akiyama Yoshihiro Ueda, Kouji Ohta, Richard Mushotzky, Tadayuki Takahashi and Toru Yamada, PASJ in press., 2002 )
• Variability Timescales of TeV Blazars Observed in the ASCA Continuous Long-Look X-Ray Monitoring
  ( C. Tanihata, C.M. Urry,T. Takahashi, J. Kataoka, S.J. Wagner, G.M. Madejski, M. Tashiro, M. Kouda, Astrophysical Journal, 563, 569, 2001 )
• Characteristic X-Ray Variability of TeV Blazars: Probing the Link between the Jet and the Central Engine
  ( J. Kataoka, T. Takahashi, S.J. Wagner, N. Iyomoto, P.G. Edwards, K. Hayashida, S. Inoue, G.M. Madejski, F. Takahara, C. Tanihata, N. Kawai, Astrophysical Journal, 560, 659, 2001 )
• Complex Spectral Variability from Intensive Multi-wavelength Monitoring of Mrk 421 in 1998
  ( T. Takahashi, J. Kataoka, G. Madejski, J. Mattox, C.M. Urry, S. Wagner, F. Aharonian, M. Catanese, L. Chiappetti, P. Coppi, B. Degrange, G. Fossati, H. Kubo, H. Krawczynski, F. Makino, H. Marshall, L. Maraschi, F. Piron, R. Remillard, F. Takahara, M. Tashiro, H. Terasranta, and T. Weekes, 2000, Astro Physical Journal, 542, L105-L109 )
• Rapid Synchrotron Flares from BL Lacertae Detected by ASCA and RXTE
  ( C. Tanihata, T. Takahashi , J. Kataoka, G. Madejski, S. Inoue, H. Kubo, F. Makino, J. Mattox, N. Kawai, 2000, Astro Physical Journal, 543 124-130 )
• Variability Pattern and the Spectral Evolution of the BL Lacertae Object PKS 2155-304
  ( J. Kataoka, T. Takahashi , F. Makino, S. Inoue, G. Madejski, M. Tashiro, M. Urry, and H. Kubo 2000, Astro Physical Journal, 528, 243-253 )
• Simultaneous X-Ray and TEV Observations of a Rapid Flare from Markarian 421
  ( L. Maraschi, Fossati, G., Tavecchio, F., Chiappetti, L., Celotti, A., Ghisellini, G., Grandi, P., Pian, E., Tagliaferri, G., Treves, A., Breslin, A. C., Buckley, J. H., Carter-Lewis, D. A., Catanese, M., Cawley, M. F., Fegan, D. J., Fegan, S., Finley, J., Gaidos, J., Hall, T., Hillas, A. M., Krennrich, F., Lessard, R. W., Masterson, C., Moriarty, P., Quinn, J., Rose, J., Samuelson, F., Weekes, T. C., C. M. Urry , T. Takahashi Astro Physical Journal, 526, L81-L84, 2000 )
• ASCA Observations of Blazars and Multiband Analysis
  ( H. Kubo, T. Takahashi, G. Madejski, M. Tashiro, F. Makino, S. Inoue and F. Takahara, 2000, Adv.Space Res., 25, 733-736 )
• A Study of High Energy Emission From the TeV Blazar Mrk 501 During Multiwavelength Observations in 1996
  ( J. Kataoka, J. Mattox , J. Quinn, H. Kubo, F. Makino, T. Takahashi, S. Inoue, R.C. Hartman, G.M. Madejski, P. Sreekumar and S.J. Wagner, 2000, Adv.Space Res., 25, 737-740 )
• X-Ray Observations of Optically Selected, Radio-quiet Quasars. I. The ASCA Results
  ( I.M. George, T.J. Turner, T. Yaqoob, H. Netzer, A. Laor, R.F. Mushotzky, K. Nandra, T. Takahashi , 2000, Astro Physical Journal, 531, 52-80 )
• X-ray observations of TeV blazars and multi-frequency analysis
  ( T. Takahashi , G. Madejski and H. Kubo 1999, Astroparticle Physics, 11, 177 )
• Multiwavelength observations of the TeV blazar Mrk 501 in March 1996. The first report of the detection by EGRET
  ( J. Kataoka, J. R. J. Mattox, J. Quinn, H. Kubo, F. Makino, T. Takahashi , S. Inoue, R. C. Hartman, G. M. Madejski, P. Sreekumar , S. J. Wagner 1999, Astroparticle Physics, 11, 149 )
• High-Energy Emission from the TEV Blazar Markarian 501 during Multiwavelength Observations in 1996
  ( J. Kataoka, R. Mattox, J. Quinn, H. Kubo, F. Makino, T. Takahashi , S. Inoue, R. C. Hartman, G. M. Madejski, P. Sreekumar , S. J. Wagner, 1999, Astro Physical Journal, 514, 138-147 )
• ASCA Observations of Blazars and Multi-Band Analysis
  ( H. Kubo, T. Takahashi, G. Madejski, F. Makino and M. Tashiro, 1999, Astrophys. Letters Commun., 39, 81-84 )
• ASCA Observations of Blazars and Multiband Analysis
  ( H. Kubo, T. Takahashi , G. Madejski, M. Tashiro, F. Makino, S. Inoue , F. Takahara 1998, Astro Physical Journal, 504, 693-701 )
• X-Ray Observations of the BL Lacertae Object OJ 287 with ASCA
  ( E. Idesawa, M. Tashiro, K. Makishima, H. Kubo, C. Otani, R. Fujimoto, T. Kii, F. Makino, T. Takahashi , Y. Ueda , T. Ohashi 1997, PASJ, 49, 631 )
• Multiwavelength Monitoring of the BL Lacertae Object PKS 2155-304 in 1994 May. III. Probing the Inner Jet through Multiwavelength Correlations
  ( C. M. Urry , A. Treves, L. Maraschi, H. L. Marshall, T. Kii, G. Madejski, S. Penton, J. E. Pesce, E. Pian, A. Celotti, R. Fujimoto, F. Makino, C. Otani, R. M. Sambruna, K. Sasaki, J. M. Shull, P. S. Smith, T. Takahashi , M. Tashiro 1997, Astro Physical Journal, 486, 799 )
• Evidence of an Ionized Iron Emission Line from the Radio-quiet Quasar E1821+643 by ASCA
  ( A. Yamashita, C. Matsumoto, M. Ishida, H. Inoue, T. Kii, K. Makishima, T. Takahashi , M. Tashiro 1997, Astro Physical Journal, 486, 763 )
• Observations of the high-redshift quasar Q1745+624 (z=3.9) with ASCA
  ( H. Kubo, K. Makishima, T. Takahashi , M. Ishida, H. Inoue, M. Matsuoka, N. Yamasaki , K. Suzuki 1997, MNRAS, 287, 328 )
• Fluorescent Lines from the Nucleus of Centaurus A
  ( M. Sugizaki , H. Inoue, T. Sonobe, T. Takahashi , Y. Yamamoto 1997, PASJ, 49, 59 )
• ASCA Observation of an X-Ray/TeV Flare from the BL Lacertae Object Markarian 421
  ( T. Takahashi , M. Tashiro, G. Madejski, H. Kubo, T. Kamae, J. Kataoka, T. Kii, F. Makino, K. Makishima , N. Yamasaki 1996, Astro Physical Journall, 470, L89 )
• X-Ray/Soft Gamma-Ray Observation of Centaurus A and Its Implication on the Emission Mechanism
  ( Miyazaki, S. , T. Takahashi , S. Gunji, M. Hirayama, T. Kamae, Y. Sekimoto, T. Tamura, M. Tanaka, N. Y. Yamasaki, H. Inoue, T. Kano, T. Yamagami, M. Nomachi, H. Murakami, J. Braga , J. A. Neri 1996, PASJ, 48, 801 )
• Simultaneous Soft X-Ray and GeV Gamma-Ray Observations of BL Lacertae Object AO 0235+164
  ( G. Madejski, T. Takahashi , M. Tashiro, H. Kubo, R. Hartman, T. Kallman , M. Sikora 1996, Astro Physical Journal, 459, 156 )
• Multiwavelength Observations of Markarian 421 During a TeV/X-Ray Flare
  ( D. J. Macomb, C. W. Akerlof, H. D. Aller, M. F. Aller, D. L. Bertsch, F. Bruhweiler, J. H. Buckley, D. A. Carter-Lewis, M. F. Cawley, K. -P. Cheng, C. Dermer, D. J. Fegan, J. A. Gaidos, W. K. Gear, C. R. Hall, R. C. Hartman, A. M. Hillas, M. Kafatos, A. D. Kerrick, D. A. Kniffen, Y. Kondo, H. Kubo, R. C. Lamb, F. Makino, K. Makishima, A. Marscher, J. MCEnery, I. M. MCHardy, D. I. Meyer, E. M. Moore, E. Ramos, E. I. Robson, H. J. Rose, M. S. Schubnell, G. Sembroski, J. A. Stevens, T. Takahashi , M. Tashiro, T. C. Weekes, C. Wilson , J. Zweerink 1995, Astro Physical Journall, 449, L99 )

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