http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
NEAR-IR POLARIMETRY AROUND 30 DORADUS: I. SEPARATION OF THE GALACTIC SOURCES
Kim, Jae-Yeong,Pak, Soo-Jong,Choi, Min-Ho,Kang, Won-Seok,Kandori, Ryo,Tamura, Motohide,Nagata, Tetsuya,Kwon, Jung-Mi,Kato, Daisuke,Jaffe, Daniel T. The Korean Astronomical Society 2011 Journal of The Korean Astronomical Society Vol.44 No.4
A $200'{\times}200'$ 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.
First Near-infrared Imaging Polarimetry of Young Stellar Objects in the Circinus Molecular Cloud
Kwon, Jungmi,Nakagawa, Takao,Tamura, Motohide,Hough, James H.,Choi, Minho,Kandori, Ryo,Nagata, Tetsuya,Kang, Miju Published by the University of Chicago Press for t 2018 The Astrophysical journal Supplement series Vol.234 No.2
<P>We present the results of near-infrared (NIR) linear imaging polarimetry in the J, H, and K-s bands of the low-mass star cluster-forming region in the Circinus Molecular Cloud Complex. Using aperture polarimetry of point-like sources, positive detection of 314, 421, and 164 sources in the J, H, and Ks bands, respectively, was determined from among 749 sources whose photometric magnitudes were measured. For the source classification of the 133 point-like sources whose polarization could be measured in all 3 bands, a color-color diagram was used. While most of the NIR polarizations of point-like sources are well-aligned and can be explained by dichroic polarization produced by aligned interstellar dust grains in the cloud, 123 highly polarized sources have also been identified with some criteria. The projected direction on the sky of the magnetic field in the Cir-MMS region is indicated by the mean polarization position angles (70 degrees) of the point-like sources in the observed region, corresponding to approximately 1.6 x 1.6 pc(2). In addition, the magnetic field direction is compared with the outflow orientations associated with Infrared Astronomy Satellite sources, in which two sources were found to be aligned with each other and one source was not. We also show prominent polarization nebulosities over the Cir-MMS region for the first time. Our polarization data have revealed one clear infrared reflection nebula (IRN) and several candidate IRNe in the Cir-MMS field. In addition, the illuminating sources of the IRNe are identified with near-and mid-infrared sources.</P>
Near-infrared Polarimetry of the Outflow Source AFGL 6366S: Detection of Circular Polarization
Kwon, Jungmi,Nakagawa, Takao,Tamura, Motohide,Hough, James H.,Kandori, Ryo,Choi, Minho,Kang, Miju,Cho, Jungyeon,Nakajima, Yasushi,Nagata, Tetsuya American Institute of Physics 2018 The Astronomical journal Vol.156 No.1
Chemical variation in molecular cloud cores in the Orion A cloud. II.
Tatematsu, Ken'ichi,Ohashi, Satoshi,Umemoto, Tomofumi,Lee, Jeong-Eun,Hirota, Tomoya,Yamamoto, Satoshi,Choi, Minho,Kandori, Ryo,Mizuno, Norikazu Astronomical Society of Japan 2014 Publications of the Astronomical Society of Japan Vol.66 No.1