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NEAR-IR POLARIMETRY AROUND 30 DORADUS: I. SEPARATION OF THE GALACTIC SOURCES KCI 등재 SCOPUS

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  • URLhttps://db.koreascholar.com/Article/Detail/385896
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천문학회지 (Journal of The Korean Astronomical Society)
한국천문학회 (Korean Astronomical Society)
초록

A 20' X 20' region around 30 Doradus in the Large Magellanic Cloud (LMC) is observed and analyzed in the near-infrared. We obtain polarimetry data in the J, H, and Ks bands using the SIRIUS polarimeter SIRPOL at the Infrared Survey Facility 1.4 m telescope. We measure the Stokes parameters of 2562 point-like sources to derive the degree of polarization and the polarization position angles. We discuss the statistics of the groups classified by color-magnitude diagram and proper motions of the sources, in order to separate the Galactic foreground sources from those present in the LMC. We notice that groups classified by the proper motion data show a tendency towards different polarimetric properties.

저자
  • JaeYeong Kim(School of Space Research, Kyung Hee University)
  • SooJong Pak(School of Space Research, Kyung Hee University)
  • MinHo Choi(Korea Astronomy and Space Science Institute)
  • WonSeok Kang(School of Space Research, Kyung Hee University)
  • Ryo Kandori(National Astronomical Observatory of Japan)
  • Motohide Tamura(National Astronomical Observatory of Japan)
  • Tetsuya Nagata(Department of Astronomy, Kyoto University)
  • JungMi Kwon(National Astronomical Observatory of Japan)
  • Daisuke Kato(Institute of Space and Astronomical Science, Japan Aerospace Exploration Agency)
  • Daniel T. Jaffe(School of Space Research, Kyung Hee University)