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High-contrast polarimetric imaging of the protoplanetary disk around AB Aurigae

Published online by Cambridge University Press:  10 November 2011

M. Fukagawa
Affiliation:
Department of Earth and Space Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan email: misato@iral.ess.sci.osaka-u.ac.jp
J. P. Wisniewski
Affiliation:
Department of Astronomy, University of Washington, Box 351580 Seattle, WA 98195, USA
J. Hashimoto
Affiliation:
National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
Y. Okamoto
Affiliation:
Institute of Astrophysics and Planetary Sciences, College of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
C. A. Grady
Affiliation:
Eureka Scientific, 2452 Delmer, Suite 100, Oakland, CA 96002, USA NASA Goddard Space Flight Center, Code 667, Greenbelt, MD 20771, USA
T. Muto
Affiliation:
Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Oh-okayama, Meguro-ku, Tokyo 152-8551, Japan
S.-I. Inutsuka
Affiliation:
Department of Physics, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8602, Japan
K. W. Hodapp
Affiliation:
Institute for Astronomy, University of Hawaii, 640 N. Aohoku Place, Hilo, HI 96720, USA
T. Kudo
Affiliation:
National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
M. Momose
Affiliation:
Institute of Astrophysics and Planetary Sciences, College of Science, Ibaraki University, 2-1-1 Bunkyo, Mito, Ibaraki 310-8512, Japan
H. Shibai
Affiliation:
Department of Earth and Space Science, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan email: misato@iral.ess.sci.osaka-u.ac.jp
M. Tamura
Affiliation:
National Astronomical Observatory of Japan, 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
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Abstract

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We present the spatially-resolved polarization measurements for the disk around the Herbig Ae star, AB Aurigae. The images were obtained in J, H, and Ks bands with the coronagraphic camera HiCIAO on the Subaru Telescope. The inner region beyond 30 AU from the star was imaged, which reveals an azimuthal dip, a radial gap at around 80 AU, and complex spiral-like emission in polarized light.

Type
Contributed Papers
Copyright
Copyright © International Astronomical Union 2011

References

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