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OH D, HASHIMOTO J, TAMURA M, WISNIEWSKI J, AKIYAMA E, CURRIE T, MAYAMA S, TAKAMI M, THALMANN C, KUDO T, KUSAKABE N, ABE L, BRANDNER W, BRANDT TD, CARSON JC, EGNER S, FELDT M, GOTO M, GRADY CA, GUYON O, HAYANO Y, HAYASHI M, HAYASHI SS, HENNING T, HODAPP KW, ISHII M, IYE M, JANSON M, KANDORI R, KNAPP GR, KUZUHARA M, KWON J, MATSUO T, MCELWAIN MW, MIYAMA S, MORINO JI, MORO-MARTIN A, NISHIMURA T, PYO TS, SERABYN E, SUENAGA T, SUTO H, SUZUKI R, TAKAHASHI YH, TAKATO N, TERADA H, TURNER EL, WATANABE M, YAMADA T, TAKAMI H, USUDA T. Near-infrared imaging polarimetry of LkCa 15: A possible warped inner disk. Publ Astron Soc Jpn Nihon Tenmon Gakkai 2016; 68:L3. [PMID: 32848256 PMCID: PMC7447141 DOI: 10.1093/pasj/psv133] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We present high-contrast H-band polarized intensity images of the transitional disk around the young solar-like star LkCa 15. By utilizing Subaru/HiCIAO for polarimetric differential imaging, the angular resolution and the inner working angle reach 0.07 and r = 0″.1, respectively. We obtained a clearly resolved gap (width ≲ 27 au) at ~48 au from the central star. This gap is consistent with images reported in previous studies. We also confirmed the existence of a bright inner disk with a misaligned position angle of 13° ±4° with respect to that of the outer disk, i.e., the inner disk is possibly warped. The large gap and the warped inner disk both point to the existence of a multiple planetary system with a mass of ≲ 1 M Jup.
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Affiliation(s)
- Daehyeon OH
- Department of Astronomical Science, The Graduate University for Advanced Studies (SOKENDAI), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Jun HASHIMOTO
- Astrobiology Center of NINS, 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
| | - Motohide TAMURA
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
- Astrobiology Center of NINS, 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
- Department of Astronomy, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - John WISNIEWSKI
- H. L. Dodge Department of Physics & Astronomy, University of Oklahoma, 440 W Brooks St., Norman, OK 73019, USA
| | - Eiji AKIYAMA
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Thayne CURRIE
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A’ohoku Place, Hilo, HI 96720, USA
| | - Satoshi MAYAMA
- The Center for the Promotion of Integrated Sciences, The Graduate University for Advanced Studies (SOKENDAI), Shonan International Village, Hayama-cho, Miura-gun, Kanagawa 240-0193, Japan
| | - Michihiro TAKAMI
- Institute of Astronomy and Astrophysics, Academia Sinica, P.O. Box 23-141, Taipei 10617, Taiwan
| | - Christian THALMANN
- Swiss Federal Institute of Technology (ETH Zurich), Institute for Astronomy, Wolfgang-Pauli-Strasse 27, CH-8093 Zurich, Switzerland
| | - Tomoyuki KUDO
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A’ohoku Place, Hilo, HI 96720, USA
| | - Nobuhiko KUSAKABE
- Astrobiology Center of NINS, 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
| | - Lyu ABE
- Laboratoire Lagrange (UMR 7293), Universite de Nice-Sophia Antipolis, CNRS, Observatoire de la Côte d’Azur, 28 Avenue Valrose, 06108 Nice Cedex 2, France
| | - Wolfgang BRANDNER
- Max Planck Institute for Astronomy, Köonigstuhl 17, 69117 Heidelberg, Germany
| | - Timothy D. BRANDT
- Astrophysics Department, Institute for Advanced Study, Princeton, NJ 08540, USA
| | - Joseph C. CARSON
- Department of Physics and Astronomy, College of Charleston, 58 Coming St., Charleston, SC 29424, USA
| | - Sebastian EGNER
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A’ohoku Place, Hilo, HI 96720, USA
| | - Markus FELDT
- Astrophysics Department, Institute for Advanced Study, Princeton, NJ 08540, USA
| | - Miwa GOTO
- Universitats-Sternwarte Munchen, Ludwig-Maximilians-Universitat, Scheinerstr. 1, D-81679 Munchen, Germany
| | - Carol A. GRADY
- Exoplanets and Stellar Astrophysics Laboratory, Code 667, Goddard Space Flight Center, Greenbelt, MD 20771, USA
- Eureka Scientific, 2452 Delmer, Suite 100, Oakland, CA 96002, USA
- Goddard Center for Astrobiology, Goddard Space Flight Center, Greenbelt, MD 20771, USA
| | - Olivier GUYON
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A’ohoku Place, Hilo, HI 96720, USA
| | | | - Masahiko HAYASHI
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A’ohoku Place, Hilo, HI 96720, USA
| | - Saeko S. HAYASHI
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A’ohoku Place, Hilo, HI 96720, USA
| | - Thomas HENNING
- Max Planck Institute for Astronomy, Köonigstuhl 17, 69117 Heidelberg, Germany
| | - Klaus W. HODAPP
- Institute for Astronomy, University of Hawaii, 640 N. A’ohoku Place, Hilo, HI 96720, USA
| | - Miki ISHII
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Masanori IYE
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Markus JANSON
- Department of Astrophysical Science, Princeton University, Peyton Hall, Ivy Lane, Princeton, NJ 08544, USA
| | - Ryo KANDORI
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Gillian R. KNAPP
- Department of Astrophysical Science, Princeton University, Peyton Hall, Ivy Lane, Princeton, NJ 08544, USA
| | - Masayuki KUZUHARA
- Department of Earth and Planetary Sciences, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo 152-8551, Japan
| | - Jungmi KWON
- Department of Astronomy, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Taro MATSUO
- Department of Astronomy, Kyoto University, Kitashirakawa-Oiwake-cho, Sakyo-ku, Kyoto, Kyoto 606-8502, Japan
| | - Michael W. MCELWAIN
- Exoplanets and Stellar Astrophysics Laboratory, Code 667, Goddard Space Flight Center, Greenbelt, MD 20771, USA
| | - Shoken MIYAMA
- Hiroshima University, 1-3-2 Kagamiyama, Higashihiroshima, Hiroshima 739-8511, Japan
| | - Jun-Ichi MORINO
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Amaya MORO-MARTIN
- Space Telescope Science Institute, 3700 San Martin Drive, Baltimore, MD 21218, USA
- Center for Astrophysical Sciences, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Tetsuo NISHIMURA
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A’ohoku Place, Hilo, HI 96720, USA
| | - Tae-Soo PYO
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A’ohoku Place, Hilo, HI 96720, USA
| | - Eugene SERABYN
- Kavli Institute for Physics and Mathematics of the Universe, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8568, Japan
| | - Takuya SUENAGA
- Department of Astronomical Science, The Graduate University for Advanced Studies (SOKENDAI), 2-21-1 Osawa, Mitaka, Tokyo 181-8588, Japan
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Hiroshi SUTO
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
- Astrobiology Center of NINS, 2-21-1, Osawa, Mitaka, Tokyo, 181-8588, Japan
| | - Ryuji SUZUKI
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Yasuhiro H. TAKAHASHI
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
- Department of Astronomy, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - Naruhisa TAKATO
- Subaru Telescope, National Astronomical Observatory of Japan, 650 North A’ohoku Place, Hilo, HI 96720, USA
| | - Hiroshi TERADA
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Edwin L. TURNER
- Department of Astrophysical Science, Princeton University, Peyton Hall, Ivy Lane, Princeton, NJ 08544, USA
- Kavli Institute for Physics and Mathematics of the Universe, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8568, Japan
| | - Makoto WATANABE
- Department of Cosmosciences, Hokkaido University, Kita-ku, Sapporo, Hokkaido 060-0810, Japan
| | - Toru YAMADA
- Astronomical Institute, Tohoku University, Aoba-ku, Sendai, Miyagi 980-8578, Japan
| | - Hideki TAKAMI
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
| | - Tomonori USUDA
- National Astronomical Observatory of Japan, 2-21-1, Osawa, Mitaka, Tokyo 181-8588, Japan
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