Kinematics of the Milky Way Galaxy using accurate astrometric observation of Mira type variables

2010 Fiscal Year Final Research Report

• Project/Area Number: 21840040
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Astronomy
• Research Institution: Kagoshima University
• Principal Investigator: NAKAGAWA Akiharu Kagoshima University, 理工学研究科(理学系), 助教 (60535631)
• Co-Investigator(Renkei-kenkyūsha): KURAYAMA Tomoharu 鹿児島大学, 理工学研究科, プロジェクト研究員 (90425405)
• Project Period (FY): 2009 – 2010
• Keywords: 電波天文学 / VLBI / 銀河系 / 光赤外線

Research Abstract

We have conducted astrometric VLBI observations with VERA towards Galactic AGB stars. Two papers were published. In the papers, we revealed size and motion of circumstellar envelopes of two AGB stars, and tracks of a star moving in our Galaxy during recent 1Gyr. We newly detected parallaxes for 6 AGB stars and it can be used to establish more precise PLR in the Galaxy. Using the HIPPARCOS database, we compiled 6-D kinematic information for 300 AGB sources.

Research Products

• [Journal Article] Astrometry of AGB Variables with VERA : Annual Parallax and the Orbit of SY Sculptoris in the Galaxy (2011)
  • Author(s): Nyu, Daisuke ; Nakagawa, Akiharu ; Matsui, Makoto ; Imai, Hiroshi ; Sofue, Yoshiaki ; Omodaka, Toshihiro ; Kurayama, Tomoharu ; Kamohara, Ryuichi ; Hirota, Tomoya ; Honma, Mareki ; Shibata, Katsunori M.; Kobayashi, Hideyuki ; Iwadate, Kenzaburo ; Miyaji, Takeshi
  • Journal Title: Publications of the Astronomical Society of Japan Vol.63, No.1 Pages: 63-70
  • Peer Reviewed
• [Journal Article] VLBI Astrometry of AGB Variables with VERA-A Semiregular Variable S Crateris- (2008)
  • Author(s): Nakagawa, Akiharu ; Tsushima, Miyuki ; Ando, Kazuma ; Bushimata, Takeshi ; Choi, Yoon Kyung ; Hirota, Tomoya ; Honma, Mareki ; Imai, Hiroshi ; Iwadate, Kenzaburo ; Jike, Takaaki ; Kameno, Seiji ; Kameya, Osamu ; Kamohara, Ryuichi ; Kan-Ya, Yukitoshi ; Kawaguchi, Noriyuki ; Kijima, Masachika ; Kim, Mi Kyoung ; Kobayashi, Hideyuki ; Kuji, Seisuke; Kurayama, Tomoharu ; Maeda, Toshihisa ; Manabe, Seiji ; Maruyama, Kenta ; Matsui, Makoto ; Matsumoto, Naoko ; Miyaji, Takeshi ; Nagayama, Takumi ; Nakamura, Kayoko ; Nyu, Daisuke ; Oh, Chung Sik ; Omodaka, Toshihiro ; Oyama, Tomoaki ; Pradel, Nicolas ; Sakai, Satoshi ; Sasao, Tetsuo ; Sato, Katsuhisa ; Sato, Mayumi ; Shibata, Katsunori M.; Suda, Hiroshi ; Tamura, Yoshiaki ; Ueda, Kousuke ; Ueno, Yuji ; Yamashita, Kazuyoshi
  • Journal Title: Publications of the Astronomical Society of Japan Vol.60, No.5 Pages: 1013-1021
  • Peer Reviewed
• [Presentation] VERA によるミラ型変光星周期光度関係の解明とその利用 (2010)
  • Author(s): 中川亜紀治、倉山智春、亀崎達也、面高俊宏、宮ノ下亮、福元直洋、今井裕、和田桂一、松井真、西田芳郎(鹿児島大学)、柴田克典(国立天文台)、VERAプロジェクトチーム
  • Organizer: 2010年日本天文学会秋季年会
  • Place of Presentation: 石川県金沢大学
  • Year and Date: 2010-09-22
• [Presentation] VERAとVLBAによるミラ型変光星周期光度関係の解明とその利用 (2010)
  • Author(s): 中川亜紀治、倉山智春、亀崎達也、面高俊宏、宮ノ下亮、福元直洋、今井裕、和田桂一、松井真、西田芳郎(鹿児島大学)、柴田克典(国立天文台)、VERAプロジェクトチーム
  • Organizer: 2010年日本天文学会春季年会
  • Place of Presentation: 広島県広島大学
  • Year and Date: 2010-03-25
• [Remarks] ホームページ等
  • URL: http://astro.sci.kagoshima-u.ac.jp/omodaka-nishio/member/nakagawa/index.html