Near-IR Polarimetry of Star-Forming Regions around 30 Doradus
Abstract
The central 20'x20‧ regions around 30 Doradus were observed in the near-infrared J, H, and Ks bands using the InfraRed Survey Faciliy (IRSF) 1.4m telescope at the South African Astronomical Observatory. We obtained polarimetry data in J, H, and Ks bands using the JHKs-simultaneous imaging polarimeter SIRPOL. 30 Doradus is located in the Large Magellanic Cloud (LMC) and it is the most active starburst region known in the Local group of galaxies. We measured Stokes parameters of point-like sources to derive the degree of polarization and the polarization position angle. Using color-color diagrams and polarization-color diagrams, the imbedded stars in the LMC are selected to estimate dichroic polarizations. This poster presents the preliminary results to show the physical properties of the magnetic field around 30 Doradus regions.
- Publication:
-
American Astronomical Society Meeting Abstracts #216
- Pub Date:
- May 2010
- Bibcode:
- 2010AAS...21642209K