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Introduction to “stellar and interstellar physics team” FY2013

Introduction to “stellar and interstellar physics team” FY2013. http://milkyway.sci.kagoshima-u.ac.jp/~imai/research.html. Hiroshi Imai Department of Physics and Astronomy, Graduate School of Science, Kagoshima University. Radio Movie. Biweekly, 112-frame, monitoring observations

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Introduction to “stellar and interstellar physics team” FY2013

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  1. Introduction to “stellar and interstellar physics team”FY2013 http://milkyway.sci.kagoshima-u.ac.jp/~imai/research.html Hiroshi Imai Department of Physics and Astronomy, Graduate School of Science, Kagoshima University

  2. Radio Movie Biweekly, 112-frame, monitoring observations with the VLBA (Gonidakis et al. 2010) SiO v=1 J=1-0 masers around TX Cam (Diamond & Kemball 2003) Our goals: multi-line (H2O, SiO) and Multi-transition radio movies

  3. Main research themes • Stellar and interstellar astrophysics • Mass loss from dying stars AGB stars, OH/IR stars, pre-planetary and planetary nebulae • Stellar pulsation of long period variable stars Mira and semi-regular/irregular variable stars • Astronomical masers microwave amplification by stimulated emission of radiation OH, H2O, SiO, (HCN, CH3OH, …) Star forming regions, circumstellar envelopes, Extragalactic circumnuclear disks • Life of stars in the Milky Way • Annual parallax and secular motions of maser sources • Orbit determinations of target stars for exploring stellar evolution and star formation process • Study on ongoing/future large radio interferometers • Square Kilometer Array (SKA): 2020~ • Australian SKA Pathfinder (ASKAP): 2014~ • RadioAstron (Russian space VLBI): 2013~

  4. Research activities • Used facilities: radio interferometers • VERA: VLBI Exploration of Radio Astrometry • JVN: Japanese VLBI Network • ALMA: Atacama Large Millimeter-submillimeter Array • VLBA: Very Long Baseline Array • EVLA: Extended Very Large Array • EVN: European VLBI Network • LBA: Australia Long Baseline Array • ATCA: Australia Telescope Compact Array • RadioAstron (Space VLBI) • Planed future facilities • EAVN: East Asian VLBI Network (JVN+KVN+CVN) • APT: Asian-Pacific Telescopes (EAVN+LBA) • SKA: Square Kilometer Array • ASKAP: Australia SKA Pathfinder • Current major contributions • Interferometry data analysis pipeline scripts • Scientific observation simulations • Study on maser physics and final stellar evolution

  5. Radio telescopes

  6. International collaboration (latest) Organizations • University of Hong-Kong (China) • University of Calgary (Canada) • Max-Plank Institute for Radio Astronomy (Germany) • Australia Telescope National Facilities (Australia) • University of West Australia (Australia) • University of Tasmania (Australia) • Korea Astronomy and Space Science Institute (Korea) • Ural Federal University (Russia) • ASTRON (Netherlands) International projects • GASKAP (Galactic ASKAP Spectral Line Survey) • RadioAstronKey Science Project (Masers) • Evolved Stars sub-Working Group for KVN+VERA

  7. International studentship/fellowship Visiting foreign students / researchers in 2013 • Gabor Orosz (from Budapest University of Technology and Economics) • Chong, Sze Ning (from University of Hong-Kong) • Chibueze, James Okwe (from University of Nigeria) Application to international studentship (short/long stay for graduate student) • Joint Institute for VLBI in Europe (Netherlands) • International Centre for Radio Astronomy Research (Australia) • Other institutes or universities in collaboration (Korea, Australia, South Africa, ….)

  8. 研究課題：　学部生向き (1/2)2013年度は1 or 2人募集 今井は西オーストラリア大学に長期滞在 (2012年5月ー2013年3月まで、 2013年度は約２カ月間） 出張中は、Skype会議、電子メール等による定期的指導 博士前期課程進学希望者のみ受け入れ（2013年度限りの条件） • VERA+KVN (Korean VLBI Network)共同観測 • 試験データ解析、科学的研究、研究計画立案補助 • VERA単独アストロメトリ • 年周視差計測：　RadioAstron KSP 対象天体 • その他 (次頁、後日相談）

  9. 研究課題：　学部生向き (2/2) • LBA（Australia)関係 • 大小マゼラン雲H2Oメーザー源及び位置参照電波源に関する研究 • ALMA関係 • 観測計画書作成のための情報収集・シミュレーション 対象：　「宇宙の噴水」天体、惑星状星雲 • 初期データの解析 • ASTEを使ったCI (496GHz)輝線探査 • SKA (Square Kilometer Array)関係 • 研究課題の検討のための情報収集と各種シミュレーション • Galactic Australia SKA Pathfinder Spectral Line Survey (GASKAP)関連 • RadioAstron (Space VLBI)国際共同観測 • 高輝度水酸基、水蒸気メーザー源の物理学 • そのほか • 赤外線天文衛星「あかり」データを用いたOH/IR星に関する研究

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