2011年10月20日
Near-IR Polarimetry Around 30 Doradus: I. Separation of the Galactic Sources
Journal of the Korean Astronomical Society
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- 巻
- 44
- 号
- 4
- 開始ページ
- 135
- 終了ページ
- 142
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.5303/JKAS.2011.44.4.135
- 出版者・発行元
- Korean Astronomical Society
A 20 arcmin \times 20 arcmin 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 K_s 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.
Cloud (LMC) is observed and analyzed in the near-infrared. We obtain
polarimetry data in the J, H, and K_s 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.
- リンク情報
- ID情報
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- DOI : 10.5303/JKAS.2011.44.4.135
- ISSN : 1225-4614
- arXiv ID : arXiv:1110.4463
- SCOPUS ID : 84860421480