Study of Anisotropy of celestial objects with Spectro-photo-polarimetry

2008 Fiscal Year Final Research Report

• Project/Area Number: 17204012
• Research Category: Grant-in-Aid for Scientific Research (A)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Astronomy
• Research Institution: Nagoya University
• Principal Investigator: SHUJI Sato Nagoya University, 大学院・理学研究科, 教授 (50025483)
• Co-Investigator(Renkei-kenkyūsha): KOJI Kawabata 広島大学, 宇宙科学センター, 助教 (60372702) ; DAISAKU Nogami 京都大学, 大学院・理学研究科附属・飛騨天文台, 助教 (20332728)
• Project Period (FY): 2005 – 2008
• Keywords: 偏光 / ブレーザー / 原始星 / 非等方ジェット / 非等方ビーム / 銀河中心核 / 銀河磁場 / γ線バースト

Research Abstract

我々は、南北両半球に配置された二つの小口径望遠鏡に搭載した観測器(IRSF/SIRIUS+かなた望遠鏡/TRISPEC)を用いて、激変星、原始星、ブレーザー(活動銀河核)、γ線バースト等の現象について同時測光偏光観測した。その膨大なデータはかなたObsLog に保存されている。解析はこれからであるが、強度と偏光とも、数日間のタイムスケールで大きな変動を示す。また、南半球では、銀河磁場を研究している。星形成領域や銀河大域の磁場構造を明快に示した。

Research Products

• [Journal Article] Anti-Correlation of the Near-Infrared and X-Ray Variations of the Microquasar GRS 1915+105 in Soft State (2009)
  • Author(s): Arai, Akira ; Uemura, Makoto ; Sasada, Mahito, Trushkin, Sergei A.; Ueda, Yoshihiro (全24名)
  • Journal Title: PASJ in press
  • Peer Reviewed
• [Journal Article] A Chain of Dark Clouds in Projection Against the Galactic Center Nagayama, Takahiro (2009)
  • Author(s): Sato, Shuji, Nishiyama, Shogo, Murai, Yuka, Nagata, Tetsuya (全12名)
  • Journal Title: PASJ in press
  • Peer Reviewed
• [Journal Article] Discovery of a WZ Sge-Type Dwarf Nova, SDSS J102146.44+234926.3 : Unprecedented Infrared Activity during a Rebrightening Phase (2008)
  • Author(s): Uemura, M. Arai, A. Krajci, T. Pavlenko, E, Shugarov, S. Y. Katysheva, N. A. Goranskij, V. P. Maehara, H. Imada, A, (全29名)
  • Journal Title: PASJ 60 Pages: 227-236
  • Peer Reviewed
• [Journal Article] Outburst of a WZ Sge-type Dwarf Nova, AL Com in 2007 (2008)
  • Author(s): Uemura, M. Arai, A. Sasada, M. Schmeer, P. Miller, I., Ohsugi, T, Yamashita, T. Kawabata, K. S. Isogai, M. Sato, S., Kino, M
  • Journal Title: IBVS No.5815
  • Peer Reviewed
• [Journal Article] Discovery of a Jupiter/Saturn Analog with Gravitational Microlensing (2008)
  • Author(s): Gaudi, B. S ; Bennett, D. P. Udalski, A. Gould, A. Christie, G. W. Maoz, D, (全69名)
  • Journal Title: Science 319 Pages: 927-930
  • Peer Reviewed
• [Journal Article] Near-Infrared Study of the Carina Nebula (2007)
  • Author(s): K. Sanchawala, W. Chen, D. Ojha, S. K. Ghosh, Y. Nakajima, M. Tamura, D. Baba, S. Sato, and M. Tsujimoto
  • Journal Title: ApJ 667 Pages: 963-979
  • Peer Reviewed
• [Journal Article] Near-Infrared Polarization Images of the Orion Molecular Cloud 1 South Region (2007)
  • Author(s): J. Hashimoto, M. Tamura, R. Kandori, N. Kusakabe, Y. Nakajima, S. Sato, C. Nagashima, M. Kurita, T. Nagata, T. Nagayama, and J. H. Hough
  • Journal Title: PASJ 59 Pages: 481-486
  • Peer Reviewed
• [Journal Article] Near-Infrared Imaging Polarimetry of the NGC 2071 Star Forming Region with SIRPOL (2007)
  • Author(s): M. Tamura, R. Kandori, J. Hashimoto, N. Kusakabe, Y. Nakajima, S. Sato, C. Nagashima, M. Kurita, T. Nagata, T. Nagayama, J. Hough, T. Matsumoto, and A. Chrysostomou
  • Journal Title: PASJ 59 Pages: 467-479
  • Peer Reviewed
• [Journal Article] SIRPOL : a JHKs-simultaneous imaging polarimeter for the IRSF 1.4-m telescope Kandori, Ryo (2006)
  • Author(s): Kusakabe, Nobuhiko, Tamura, Motohide, Nakajima, Yasushi, (全13名)
  • Journal Title: SPIE Pages: 6269-626951
  • Peer Reviewed
• [Journal Article] The Distance to the Galactic Center Derived from Infrared Photometry of Bulge Red Clump Stars (2006)
  • Author(s): S. Nishiyama, T. Nagata, S. Sato, D. Kato, T. Nagayama, N. Kusakabe, N. Matsunaga, T. Naoi, K. Sugitani, and M. Tamura
  • Journal Title: ApJ 647 Pages: 1093-1098
  • Peer Reviewed
• [Journal Article] Interstellar Extinction Law in the J, H, and K_S Bands toward the Galactic Center (2006)
  • Author(s): S. Nishiyama, T. Nagata, N. Kusakabe, N. Matsunaga, T. Naoi, D. Kato, C. Nagashima, K. Sugitani, M. Tamura, T. Tanabe, and S. Sato
  • Journal Title: ApJ 638 Pages: 839-846
  • Peer Reviewed
• [Journal Article] Near Infrared Imaging Survey of Bok Globules : Density Structure (2005)
  • Author(s): R. Kandori, Y. Nakajima, M. Tamura, K. Tatematsu, Y. Aikawa, T. Naoi, K. Sugitani, H. Nakaya, T. Nagayama, T. Nagata, M. Kurita, D. Kato, C. Nagashima, and S. Sato Astron
  • Journal Title: 130 Pages: 2166-2184
  • Peer Reviewed
• [Journal Article] TRISPEC : A Simultaneous Optical and Near-Infrared Imager, Spectrograph, and Polarimeter (2005)
  • Author(s): Makoto Watanabe, Hidehiko Nakaya, Tomoyasu Yamamuro, Takahiro Zenno, Miki Ishii, Makoto Okada, (全20名)
  • Journal Title: PASP 117-834 Pages: 870-884
  • Peer Reviewed
• [Journal Article] A Distinct Structure inside the Galactic Bar (2005)
  • Author(s): Shogo Nishiyama, Tetsuya Nagata, Daisuke Baba, Yasuaki Haba, Ryota Kadowaki, (全19名)
  • Journal Title: ApJ Letters 621
  • Peer Reviewed
• [Presentation] IRSF の10 年 (2008)
  • Author(s): 佐藤修二
  • Organizer: 日本天文学会秋季年会
  • Place of Presentation: 岡山理科大学
  • Year and Date: 2008-09-12