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Radial decoupling of small and large dust grains in the transitional disk RX J1615.3-3255We present H-band (1.6 micron) scattered light observations of the transitional disk RX J1615.3-3255, located in the approx. 1 Myr old Lupus association. From a polarized intensity image, taken with the HiCIAO instrument of the Subaru Telescope, we deduce the position angle and the inclination angle of the disk. The disk is found to extend out to 68 +/- 12 AU in scattered light and no clear structure is observed. Our inner working angle of 24 AU does not allow us to detect a central decrease in intensity similar to that seen at 30 AU in the 880 m continuum observations. We compare the observations with multiple disk models based on the spectral energy distribution (SED) and submm interferometry and find that an inner rim of the outer disk at 30 AU containing small silicate grains produces a polarized intensity signal which is an order of magnitude larger than observed. We show that a model in which the small dust grains extend smoothly into the cavity found for large grains is closer to the actual H-band observations. A comparison of models with different dust size distributions suggests that the dust in the disk might have undergone significant processing compared to the interstellar medium.
Document ID
Document Type
Reprint (Version printed in journal)
Kooistra, Robin (Groningen Rijksuniv. Netherlands)
Kamp, Inga (Groningen Rijksuniv. Netherlands)
Fukagawa, Misato (Nagoya Univ. Aichi, Japan)
Menard, Francois (Universite Grenoble Alpes Saint Martin d'Heres, France)
Momose, Munetake (Ibaraki Univ. Hitachi, Japan)
Tsukagoshi, Takashi (Ibaraki Univ. Hitachi, Japan)
Kudo, Tomoyuki (Subaru Telescope Hilo, HI, United States)
Kusakabe, Nobuhiko (National Inst. of Natural Sciences Aichi, Japan)
Hashimoto, Jun (National Inst. of Natural Sciences Aichi, Japan)
Abe, Lyu (Universite de Nice-Sophia Antipolis Valbonne, France)
Brandner, Wolfgang (Max-Planck-Inst. fuer Astronomie Heidelberg, Germany)
Brandt, Timothy D. (Institute for Advanced Study Princeton, NJ, United States)
Carson, Joseph C. (Charleston Univ. Charleston, SC, United States)
Egner, Sebastian E. (Subaru Telescope Hilo, HI, United States)
Feldt, Markus (Max-Planck-Inst. fuer Astronomie Heidelberg, Germany)
Goto, Miwa (Ludwig-Maximilians-Univ. Munich, Germany)
Grady, Carol A. (Eureka Scientific, Inc. Lexington, MA, United States)
Guyon, Olivier (Subaru Telescope Hilo, HI, United States)
Hayano, Yutaka (Subaru Telescope Hilo, HI, United States)
Hayashi, Masahiko (National Astronomical Observatory Tokyo, Japan)
Hayashi, Saeko S. (Subaru Telescope Hilo, HI, United States)
Henning, Thomas (Max-Planck-Inst. fuer Astronomie Heidelberg, Germany)
Hodapp, Klaus W. (Hawaii Univ. Hilo, HI, United States)
Ishii, Miki (National Astronomical Observatory Tokyo, Japan)
Iye, Masanori (National Astronomical Observatory Tokyo, Japan)
Janson, Markus (Stockholm Univ. Sweden)
Kandori, Ryo (National Astronomical Observatory Tokyo, Japan)
Knapp, Gillian R. (Princeton Univ. Princeton, NJ, United States)
Kuzuhara, Masayuki (Tokyo Institute of Technology Tokyo, Japan)
Kwon, Jungmi (Tokyo Univ. Japan)
Matsuo, Taro (Osaka Univ. Osaka, Japan)
McElwain, Michael W. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Miyama, Shoken (Hiroshima Univ. Japan)
Morino, Jun-Ichi (National Astronomical Observatory Tokyo, Japan)
Moro-Martin, Amaya (Princeton Univ. Princeton, NJ, United States)
Nishimura, Tetsuo (Subaru Telescope Hilo, HI, United States)
Pyo, Tae-Soo (Subaru Telescope Hilo, HI, United States)
Serabyn, Eugene (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Suenaga, Takuya (National Astronomical Observatory Tokyo, Japan)
Suto, Hiroshi (National Astronomical Observatory Tokyo, Japan)
Suzuki, Ryuji (National Astronomical Observatory Tokyo, Japan)
Takahashi, Yasuhiro H. (Tokyo Univ. Japan)
Takami, Michihiro (Academia Sinica Taipei, Taiwan, Province of China)
Takato, Naruhisa (Subaru Telescope Hilo, HI, United States)
Terada, Hiroshi (National Astronomical Observatory Tokyo, Japan)
Thalmann, Christian (Swiss Federal Institute of Technology Lausanne, Switzerland)
Tomono, Daigo (Subaru Telescope Hilo, HI, United States)
Turner, Edwin L. (Princeton Univ. Princeton, NJ, United States)
Watanabe, Makoto (Hokkaido Univ. Hokkaido, Japan)
Wisniewski, John (Oklahoma Univ. Oklahoma City, OK, United States)
Yamada, Toru (Tohoku Univ. Miyagi, Japan)
Takami, Hideki (National Astronomical Observatory Tokyo, Japan)
Usuda, Tomonori (National Astronomical Observatory Tokyo, Japan)
Tamura, Motohide (Tokyo Univ. Japan)
Currie, Thayne (Subaru Telescope Hilo, HI, United States)
Akiyama, Eiji (National Astronomical Observatory Tokyo, Japan)
Mayama, Satoshi (Graduate Univ. for Advanced Studies (SOKENDAI) Tachikawa, Japan)
Follette, Katherine B. (Tokyo Univ. Japan)
Nakagawa, Takao (Japan Aerospace Exploration Agency Kanagawa, Japan)
Date Acquired
August 17, 2017
Publication Date
January 18, 2017
Publication Information
Publication: Astronomy & Astrophysics
Volume: 597
ISSN: 0004-6361
Subject Category
Report/Patent Number
Funding Number(s)
Distribution Limits
HiCIAO instrument