Year: 2018
Type: article
Abstract: We conducted high-contrast polarimetry observations of T Tau in the H-band, using the High Contrast Instrument for the Subaru Next Generation Adaptive Optics instrument mounted on the Subaru Telescope, revealing structures as near as 0.″1 from the stars T Tau N and T Tau S. The whole T Tau system is found to be surrounded by nebula-like envelopes, and several outflow-related structures are detected in these envelopes. We analyzed the detailed polarization patterns of the circumstellar structures near each component of this triple young star system and determined constraints on the circumstellar disks and outflow structures. We suggest that the nearly face-on circumstellar disk of T Tau N is no larger than 0.″8, or 117 au, in the northwest, based on the existence of a hole in this direction, and no larger than 0.″27, or 40 au, in the south. A new structure, “N5,” extends to about 0.″42, or 59 au, southwest of the star, and is believed to be part of the disk. We suggest that T Tau S is surrounded by a highly inclined circumbinary disk with a radius of about 0.″3, or 44 au, with a position angle of about 30°, that is misaligned with the orbit of the T Tau S binary. After analyzing the positions and polarization vector patterns of the outflow-related structures, we suggest that T Tau S should trigger the well-known E–W outflow, and is also likely to be responsible for a southwest precessing outflow “coil” and a possible south outflow.
Source: The Astrophysical Journal
Authors: Yi Yang, Satoshi Mayama, Saeko S. Hayashi, Jun Hashimoto, Roman Rafikov, Eiji Akiyama, Thayne Currie, Markus Janson, Munetake Momose, Takao Nakagawa, Daehyeon Oh, Tomoyuki Kudo, Nobuhiko Kusakabe, Lyu Abe, Wolfgang Brandner, Timothy D. Brandt, Joseph C. Carson, Sebastian Egner, Markus Feldt, Miwa Goto, Carol A. Grady, Olivier Guyon, Yutaka Hayano, Masahiko Hayashi, Thomas Henning, Klaus W. Hodapp, Miki Ishii, Masanori Iye, Ryo Kandori, Gillian R. Knapp, Jungmi Kwon, Masayuki Kuzuhara, Taro Matsuo, Michael W. Mcelwain, Shoken Miyama, Jun-Ichi Morino, Amaya Moro-martin, Tetsuo Nishimura, Tae-Soo Pyo, Eugene Serabyn, Takuya Suenaga, Hiroshi Suto, Ryuji Suzuki, Yasuhiro H. Takahashi, Michihiro Takami, Naruhisa Takato, Hiroshi Terada, Christian Thalmann, Edwin L. Turner, Makoto Watanabe, John Wisniewski, Toru Yamada, Hideki Takami, Tomonori Usuda, Motohide Tamura
Institutions: National Institutes of Natural Sciences, The Graduate University for Advanced Studies, SOKENDAI, National Astronomical Observatory of Japan, Astrobiology Center, University of Cambridge, Institute for Advanced Study, Hokkaido University, Stockholm University, AlbaNova, Ibaraki University, Japan Aerospace Exploration Agency, Institute of Space and Astronautical Science, National Meteorological Satellite Center, Centre National de la Recherche Scientifique, Lagrange Laboratory, Observatoire de la Côte d’Azur, Université Nice Sophia Antipolis, Max Planck Institute for Astronomy, University of California, Santa Barbara, College of Charleston, European Southern Observatory, Ludwig-Maximilians-Universität München, Goddard Space Flight Center, National Aeronautics and Space Administration, Eureka Scientific, University of Arizona, University of Hawaii System, University of Hawaii at Hilo, Princeton University, The University of Osaka, Hiroshima University, Consejo Superior de Investigaciones Científicas, Instituto Nacional de Técnica Aeroespacial, Centro de Astrobiología, California Institute of Technology, Jet Propulsion Laboratory, The University of Tokyo, Institute of Astronomy and Astrophysics, Academia Sinica, Academia Sinica, ETH Zurich, Kavli Institute for the Physics and Mathematics of the Universe, University of Oklahoma, Tohoku University
Language: English
Subfield: Astronomy and Astrophysics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Awards: Observational Studies of Atmospheric Components of Protoplanets and Origin of Planet Atmosphere, Revealing the Structure of the Universe: From Extreme Gravity to Exoplanets, Imaging habitable zone planets with Subaru Telescope and TMT, Probing relationship between young planet and protoplanetary disk by ALMA, RUI: Ground-Based and Space-Based Direct Imaging Surveys for Extrasolar Planets, Unveiling the Structure of the Universe, Multicolor anatomy of protorplanetary disks: Towards understanding of planet formation, Earth-like Planet Search on the Subaru Telescope, G8020484511
OpenAlex ID: W2803700547