High-resolution Near-infrared Polarimetry and Submillimeter Imaging of FS Tau A: Possible Streamers in Misaligned Circumbinary Disk System

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Yang, Yi (author)

High-resolution Near-infrared Polarimetry and Submillimeter Imaging of FS Tau A : Possible Streamers in Misaligned Circumbinary Disk System

Article/chapterEnglish2020

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2020-02-03
American Astronomical Society,2020
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LIBRIS-ID:oai:DiVA.org:su-181096
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-181096URI
https://doi.org/10.3847/1538-4357/ab64f9DOI

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Language:English
Summary in:English

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Subject category:ref swepub-contenttype
Subject category:art swepub-publicationtype

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We analyzed the young (2.8 Myr-old) binary system FS Tau A using near-infrared (H-band) high -contrast polarimetry data from Subaru/HiCIAO and submillimeter CO (J = 2-1) line emission data from Atacama Large Millimeter/submillimeter Array (ALMA). Both the near-infrared and submillimeter observations reveal several clear structures extending to similar to 240 au from the stars. Based on these observations at different wavelengths, we report the following discoveries. One arm-like structure detected in the near-infrared band initially extends from the south of the binary with a subsequent turn to the northeast, corresponding to two bar-like structures detected in ALMA observations with an local standard of rest kinematic (LSRK) velocity of 1.19-5.64 km s(-1). Another feature detected in the near-infrared band extends initially from the north of the binary, relating to an arm-like structure detected in ALMA observations with an LSRK velocity of 8.17-16.43 km s(-1). From their shapes and velocities, we suggest that these structures can mostly be explained by two streamers that connect the outer circumbinary disk and the central binary components. These discoveries will be helpful for understanding the evolution of streamers and circumstellar disks in young binary systems.

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Akiyama, Eiji (author)
Currie, Thayne (author)
Dong, Ruobing (author)
Hashimoto, Jun (author)
Hayashi, Saeko S. (author)
Grady, Carol A. (author)
Janson, MarkusStockholms universitet,Institutionen för astronomi(Swepub:su)mjanso (author)
Jovanovic, Nemanja (author)
Uyama, Taichi (author)
Nakagawa, Takao (author)
Kudo, Tomoyuki (author)
Kusakabe, Nobuhiko (author)
Kuzuhara, Masayuki (author)
Abe, Lyu (author)
Brandner, Wolfgang (author)
Brandt, Timothy D. (author)
Bonnefoy, Michael (author)
Carson, Joseph C. (author)
Chilcote, Jeffrey (author)
Rich, Evan A. (author)
Feldt, Markus (author)
Goto, Miwa (author)
Groff, Tyler D. (author)
Guyon, Olivier (author)
Hayano, Yutaka (author)
Hayashi, Masahiko (author)
Henning, Thomas (author)
Hodapp, Klaus W. (author)
Ishii, Miki (author)
Iye, Masanori (author)
Kandori, Ryo (author)
Kasdin, Jeremy (author)
Knapp, Gillian R. (author)
Kwon, Jungmi (author)
Lozi, Julien (author)
Martinache, Frantz (author)
Matsuo, Taro (author)
Mayama, Satoshi (author)
Mcelwain, Michael W. (author)
Miyama, Shoken (author)
Morino, Jun-Ichi (author)
Moro-Martin, Amaya (author)
Nishimura, Tetsuo (author)
Pyo, Tae-Soo (author)
Serabyn, Eugene (author)
Suto, Hiroshi (author)
Suzuki, Ryuji (author)
Takami, Michihiro (author)
Takato, Naruhisa (author)
Terada, Hiroshi (author)
Thalmann, Christian (author)
Turner, Edwin L. (author)
Watanabe, Makoto (author)
Wisniewski, John P. (author)
Yamada, Toru (author)
Takami, Hideki (author)
Usuda, Tomonori (author)
Tamura, Motohide (author)
Stockholms universitetInstitutionen för astronomi (creator_code:org_t)

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In:Astrophysical Journal: American Astronomical Society889:20004-637X1538-4357

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By the author/editor: Yang, Yi; Akiyama, Eiji; Currie, Thayne; Dong, Ruobing; Hashimoto, Jun; Hayashi, Saeko S ...; show more...; Grady, Carol A.; Janson, Markus; Jovanovic, Neman ...; Uyama, Taichi; Nakagawa, Takao; Kudo, Tomoyuki; Kusakabe, Nobuhi ...; Kuzuhara, Masayu ...; Abe, Lyu; Brandner, Wolfga ...; Brandt, Timothy ...; Bonnefoy, Michae ...; Carson, Joseph C ...; Chilcote, Jeffre ...; Rich, Evan A.; Feldt, Markus; Goto, Miwa; Groff, Tyler D.; Guyon, Olivier; Hayano, Yutaka; Hayashi, Masahik ...; Henning, Thomas; Hodapp, Klaus W.; Ishii, Miki; Iye, Masanori; Kandori, Ryo; Kasdin, Jeremy; Knapp, Gillian R ...; Kwon, Jungmi; Lozi, Julien; Martinache, Fran ...; Matsuo, Taro; Mayama, Satoshi; Mcelwain, Michae ...; Miyama, Shoken; Morino, Jun-Ichi; Moro-Martin, Ama ...; Nishimura, Tetsu ...; Pyo, Tae-Soo; Serabyn, Eugene; Suto, Hiroshi; Suzuki, Ryuji; Takami, Michihir ...; Takato, Naruhisa; Terada, Hiroshi; Thalmann, Christ ...; Turner, Edwin L.; Watanabe, Makoto; Wisniewski, John ...; Yamada, Toru; Takami, Hideki; Usuda, Tomonori; Tamura, Motohide; show less...

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NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Astronomy Astrop ...

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By the university: Stockholm University

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