Subaru Near-infrared Imaging Polarimetry of Misaligned Disks around the SR 24 Hierarchical Triple System

Satoshi Mayama; Sebastián Pérez; Nobuhiko Kusakabe; Takayuki Muto; Takashi Tsukagoshi; Michael L. Sitko; Michihiro Takami; Jun Hashimoto; Ruobing Dong; Jungmi Kwon; Saeko S. Hayashi; Tomoyuki Kudo; Masayuki Kuzuhara; Katherine Follette; Misato Fukagawa; Munetake Momose; Daehyeon Oh; Jerome De Leon; Eiji Akiyama; John P. Wisniewski; Yi Yang; Lyu Abe; Wolfgang Brandner; Timothy D. Brandt; Michael Bonnefoy; Joseph C. Carson; Jeffrey Chilcote; Thayne Currie; Markus Feldt; Miwa Goto; Carol A. Grady; Tyler Groff; Olivier Guyon; Yutaka Hayano; Masahiko Hayashi; Thomas Henning; Klaus W. Hodapp; Miki Ishii; Masanori Iye; Markus Janson; Nemanja Jovanovic; Ryo Kandori; Jeremy Kasdin; Gillian R. Knapp; Julien Lozi; Frantz Martinache; Taro Matsuo; Michael W. McElwain; Shoken Miyama; Jun Ichi Morino; Amaya Moro-Martin; Takao Nakagawa; Tetsuo Nishimura; Tae Soo Pyo; Evan A. Rich; Eugene Serabyn; Hiroshi Suto; Ryuji Suzuki; Naruhisa Takato; Hiroshi Terada; Christian Thalmann; Daigo Tomono; Edwin L. Turner; Makoto Watanabe; Toru Yamada; Hideki Takami; Tomonori Usuda; Taichi Uyama; Motohide Tamura

doi:10.3847/1538-3881/ab5850

Subaru Near-infrared Imaging Polarimetry of Misaligned Disks around the SR 24 Hierarchical Triple System

Satoshi Mayama, Sebastián Pérez, Nobuhiko Kusakabe, Takayuki Muto, Takashi Tsukagoshi, Michael L. Sitko, Michihiro Takami, Jun Hashimoto, Ruobing Dong, Jungmi Kwon, Saeko S. Hayashi, Tomoyuki Kudo, Masayuki Kuzuhara, Katherine Follette, Misato Fukagawa, Munetake Momose, Daehyeon Oh, Jerome De Leon, Eiji Akiyama, John P. WisniewskiYi Yang, Lyu Abe, Wolfgang Brandner, Timothy D. Brandt, Michael Bonnefoy, Joseph C. Carson, Jeffrey Chilcote, Thayne Currie, Markus Feldt, Miwa Goto, Carol A. Grady, Tyler Groff, Olivier Guyon, Yutaka Hayano, Masahiko Hayashi, Thomas Henning, Klaus W. Hodapp, Miki Ishii, Masanori Iye, Markus Janson, Nemanja Jovanovic, Ryo Kandori, Jeremy Kasdin, Gillian R. Knapp, Julien Lozi, Frantz Martinache, Taro Matsuo, Michael W. McElwain, Shoken Miyama, Jun Ichi Morino, Amaya Moro-Martin, Takao Nakagawa, Tetsuo Nishimura, Tae Soo Pyo, Evan A. Rich, Eugene Serabyn, Hiroshi Suto, Ryuji Suzuki, Naruhisa Takato, Hiroshi Terada, Christian Thalmann, Daigo Tomono, Edwin L. Turner, Makoto Watanabe, Toru Yamada, Hideki Takami, Tomonori Usuda, Taichi Uyama, Motohide Tamura

Astrophysical Sciences

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Abstract

The SR 24 multistar system hosts both circumprimary and circumsecondary disks, which are strongly misaligned with each other. The circumsecondary disk is circumbinary in nature. Interestingly, both disks are interacting, and they possibly rotate in opposite directions. To investigate the nature of this unique twin disk system, we present 0.″1 resolution near-infrared polarized intensity images of the circumstellar structures around SR 24, obtained with HiCIAO mounted on the Subaru 8.2 m telescope. Both the circumprimary disk and the circumsecondary disk are resolved and have elongated features. While the position angle of the major axis and radius of the near-IR (NIR) polarization disk around SR 24S are 55° and 137 au, respectively, those around SR 24N are 110° and 34 au, respectively. With regard to overall morphology, the circumprimary disk around SR 24S shows strong asymmetry, whereas the circumsecondary disk around SR 24N shows relatively strong symmetry. Our NIR observations confirm the previous claim that the circumprimary and circumsecondary disks are misaligned from each other. Both the circumprimary and circumsecondary disks show similar structures in ¹²CO observations in terms of its size and elongation direction. This consistency is because both NIR and ¹²CO are tracing surface layers of the flared disks. As the radius of the polarization disk around SR 24N is roughly consistent with the size of the outer Roche lobe, it is natural to interpret the polarization disk around SR 24N as a circumbinary disk surrounding the SR 24Nb-Nc system.

Original language	English (US)
Article number	ab5850
Journal	Astronomical Journal
Volume	159
Issue number	1
DOIs	https://doi.org/10.3847/1538-3881/ab5850
State	Published - Jan 2020

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.3847/1538-3881/ab5850

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Mayama, S., Pérez, S., Kusakabe, N., Muto, T., Tsukagoshi, T., Sitko, M. L., Takami, M., Hashimoto, J., Dong, R., Kwon, J., Hayashi, S. S., Kudo, T., Kuzuhara, M., Follette, K., Fukagawa, M., Momose, M., Oh, D., De Leon, J., Akiyama, E., ... Tamura, M. (2020). Subaru Near-infrared Imaging Polarimetry of Misaligned Disks around the SR 24 Hierarchical Triple System. Astronomical Journal, 159(1), Article ab5850. https://doi.org/10.3847/1538-3881/ab5850

@article{565f063659814245a0285f4aab097c2d,

title = "Subaru Near-infrared Imaging Polarimetry of Misaligned Disks around the SR 24 Hierarchical Triple System",

abstract = "The SR 24 multistar system hosts both circumprimary and circumsecondary disks, which are strongly misaligned with each other. The circumsecondary disk is circumbinary in nature. Interestingly, both disks are interacting, and they possibly rotate in opposite directions. To investigate the nature of this unique twin disk system, we present 0.″1 resolution near-infrared polarized intensity images of the circumstellar structures around SR 24, obtained with HiCIAO mounted on the Subaru 8.2 m telescope. Both the circumprimary disk and the circumsecondary disk are resolved and have elongated features. While the position angle of the major axis and radius of the near-IR (NIR) polarization disk around SR 24S are 55° and 137 au, respectively, those around SR 24N are 110° and 34 au, respectively. With regard to overall morphology, the circumprimary disk around SR 24S shows strong asymmetry, whereas the circumsecondary disk around SR 24N shows relatively strong symmetry. Our NIR observations confirm the previous claim that the circumprimary and circumsecondary disks are misaligned from each other. Both the circumprimary and circumsecondary disks show similar structures in 12CO observations in terms of its size and elongation direction. This consistency is because both NIR and 12CO are tracing surface layers of the flared disks. As the radius of the polarization disk around SR 24N is roughly consistent with the size of the outer Roche lobe, it is natural to interpret the polarization disk around SR 24N as a circumbinary disk surrounding the SR 24Nb-Nc system.",

author = "Satoshi Mayama and Sebasti{\'a}n P{\'e}rez and Nobuhiko Kusakabe and Takayuki Muto and Takashi Tsukagoshi and Sitko, {Michael L.} and Michihiro Takami and Jun Hashimoto and Ruobing Dong and Jungmi Kwon and Hayashi, {Saeko S.} and Tomoyuki Kudo and Masayuki Kuzuhara and Katherine Follette and Misato Fukagawa and Munetake Momose and Daehyeon Oh and {De Leon}, Jerome and Eiji Akiyama and Wisniewski, {John P.} and Yi Yang and Lyu Abe and Wolfgang Brandner and Brandt, {Timothy D.} and Michael Bonnefoy and Carson, {Joseph C.} and Jeffrey Chilcote and Thayne Currie and Markus Feldt and Miwa Goto and Grady, {Carol A.} and Tyler Groff and Olivier Guyon and Yutaka Hayano and Masahiko Hayashi and Thomas Henning and Hodapp, {Klaus W.} and Miki Ishii and Masanori Iye and Markus Janson and Nemanja Jovanovic and Ryo Kandori and Jeremy Kasdin and Knapp, {Gillian R.} and Julien Lozi and Frantz Martinache and Taro Matsuo and McElwain, {Michael W.} and Shoken Miyama and Morino, {Jun Ichi} and Amaya Moro-Martin and Takao Nakagawa and Tetsuo Nishimura and Pyo, {Tae Soo} and Rich, {Evan A.} and Eugene Serabyn and Hiroshi Suto and Ryuji Suzuki and Naruhisa Takato and Hiroshi Terada and Christian Thalmann and Daigo Tomono and Turner, {Edwin L.} and Makoto Watanabe and Toru Yamada and Hideki Takami and Tomonori Usuda and Taichi Uyama and Motohide Tamura",

note = "Publisher Copyright: {\textcopyright} 2019. The American Astronomical Society.",

year = "2020",

month = jan,

doi = "10.3847/1538-3881/ab5850",

language = "English (US)",

volume = "159",

journal = "Astronomical Journal",

issn = "0004-6256",

publisher = "IOP Publishing Ltd.",

number = "1",

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Mayama, S, Pérez, S, Kusakabe, N, Muto, T, Tsukagoshi, T, Sitko, ML, Takami, M, Hashimoto, J, Dong, R, Kwon, J, Hayashi, SS, Kudo, T, Kuzuhara, M, Follette, K, Fukagawa, M, Momose, M, Oh, D, De Leon, J, Akiyama, E, Wisniewski, JP, Yang, Y, Abe, L, Brandner, W, Brandt, TD, Bonnefoy, M, Carson, JC, Chilcote, J, Currie, T, Feldt, M, Goto, M, Grady, CA, Groff, T, Guyon, O, Hayano, Y, Hayashi, M, Henning, T, Hodapp, KW, Ishii, M, Iye, M, Janson, M, Jovanovic, N, Kandori, R, Kasdin, J, Knapp, GR, Lozi, J, Martinache, F, Matsuo, T, McElwain, MW, Miyama, S, Morino, JI, Moro-Martin, A, Nakagawa, T, Nishimura, T, Pyo, TS, Rich, EA, Serabyn, E, Suto, H, Suzuki, R, Takato, N, Terada, H, Thalmann, C, Tomono, D, Turner, EL, Watanabe, M, Yamada, T, Takami, H, Usuda, T, Uyama, T & Tamura, M 2020, 'Subaru Near-infrared Imaging Polarimetry of Misaligned Disks around the SR 24 Hierarchical Triple System', Astronomical Journal, vol. 159, no. 1, ab5850. https://doi.org/10.3847/1538-3881/ab5850

TY - JOUR

T1 - Subaru Near-infrared Imaging Polarimetry of Misaligned Disks around the SR 24 Hierarchical Triple System

AU - Mayama, Satoshi

AU - Pérez, Sebastián

AU - Kusakabe, Nobuhiko

AU - Muto, Takayuki

AU - Tsukagoshi, Takashi

AU - Sitko, Michael L.

AU - Takami, Michihiro

AU - Hashimoto, Jun

AU - Dong, Ruobing

AU - Kwon, Jungmi

AU - Hayashi, Saeko S.

AU - Kudo, Tomoyuki

AU - Kuzuhara, Masayuki

AU - Follette, Katherine

AU - Fukagawa, Misato

AU - Momose, Munetake

AU - Oh, Daehyeon

AU - De Leon, Jerome

AU - Akiyama, Eiji

AU - Wisniewski, John P.

AU - Yang, Yi

AU - Abe, Lyu

AU - Brandner, Wolfgang

AU - Brandt, Timothy D.

AU - Bonnefoy, Michael

AU - Carson, Joseph C.

AU - Chilcote, Jeffrey

AU - Currie, Thayne

AU - Feldt, Markus

AU - Goto, Miwa

AU - Grady, Carol A.

AU - Groff, Tyler

AU - Guyon, Olivier

AU - Hayano, Yutaka

AU - Hayashi, Masahiko

AU - Henning, Thomas

AU - Hodapp, Klaus W.

AU - Ishii, Miki

AU - Iye, Masanori

AU - Janson, Markus

AU - Jovanovic, Nemanja

AU - Kandori, Ryo

AU - Kasdin, Jeremy

AU - Knapp, Gillian R.

AU - Lozi, Julien

AU - Martinache, Frantz

AU - Matsuo, Taro

AU - McElwain, Michael W.

AU - Miyama, Shoken

AU - Morino, Jun Ichi

AU - Moro-Martin, Amaya

AU - Nakagawa, Takao

AU - Nishimura, Tetsuo

AU - Pyo, Tae Soo

AU - Rich, Evan A.

AU - Serabyn, Eugene

AU - Suto, Hiroshi

AU - Suzuki, Ryuji

AU - Takato, Naruhisa

AU - Terada, Hiroshi

AU - Thalmann, Christian

AU - Tomono, Daigo

AU - Turner, Edwin L.

AU - Watanabe, Makoto

AU - Yamada, Toru

AU - Takami, Hideki

AU - Usuda, Tomonori

AU - Uyama, Taichi

AU - Tamura, Motohide

PY - 2020/1

Y1 - 2020/1

N2 - The SR 24 multistar system hosts both circumprimary and circumsecondary disks, which are strongly misaligned with each other. The circumsecondary disk is circumbinary in nature. Interestingly, both disks are interacting, and they possibly rotate in opposite directions. To investigate the nature of this unique twin disk system, we present 0.″1 resolution near-infrared polarized intensity images of the circumstellar structures around SR 24, obtained with HiCIAO mounted on the Subaru 8.2 m telescope. Both the circumprimary disk and the circumsecondary disk are resolved and have elongated features. While the position angle of the major axis and radius of the near-IR (NIR) polarization disk around SR 24S are 55° and 137 au, respectively, those around SR 24N are 110° and 34 au, respectively. With regard to overall morphology, the circumprimary disk around SR 24S shows strong asymmetry, whereas the circumsecondary disk around SR 24N shows relatively strong symmetry. Our NIR observations confirm the previous claim that the circumprimary and circumsecondary disks are misaligned from each other. Both the circumprimary and circumsecondary disks show similar structures in 12CO observations in terms of its size and elongation direction. This consistency is because both NIR and 12CO are tracing surface layers of the flared disks. As the radius of the polarization disk around SR 24N is roughly consistent with the size of the outer Roche lobe, it is natural to interpret the polarization disk around SR 24N as a circumbinary disk surrounding the SR 24Nb-Nc system.

AB - The SR 24 multistar system hosts both circumprimary and circumsecondary disks, which are strongly misaligned with each other. The circumsecondary disk is circumbinary in nature. Interestingly, both disks are interacting, and they possibly rotate in opposite directions. To investigate the nature of this unique twin disk system, we present 0.″1 resolution near-infrared polarized intensity images of the circumstellar structures around SR 24, obtained with HiCIAO mounted on the Subaru 8.2 m telescope. Both the circumprimary disk and the circumsecondary disk are resolved and have elongated features. While the position angle of the major axis and radius of the near-IR (NIR) polarization disk around SR 24S are 55° and 137 au, respectively, those around SR 24N are 110° and 34 au, respectively. With regard to overall morphology, the circumprimary disk around SR 24S shows strong asymmetry, whereas the circumsecondary disk around SR 24N shows relatively strong symmetry. Our NIR observations confirm the previous claim that the circumprimary and circumsecondary disks are misaligned from each other. Both the circumprimary and circumsecondary disks show similar structures in 12CO observations in terms of its size and elongation direction. This consistency is because both NIR and 12CO are tracing surface layers of the flared disks. As the radius of the polarization disk around SR 24N is roughly consistent with the size of the outer Roche lobe, it is natural to interpret the polarization disk around SR 24N as a circumbinary disk surrounding the SR 24Nb-Nc system.

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UR - http://www.scopus.com/inward/citedby.url?scp=85086426357&partnerID=8YFLogxK

U2 - 10.3847/1538-3881/ab5850

DO - 10.3847/1538-3881/ab5850

M3 - Article

AN - SCOPUS:85086426357

SN - 0004-6256

VL - 159

JO - Astronomical Journal

JF - Astronomical Journal

IS - 1

M1 - ab5850

ER -

Subaru Near-infrared Imaging Polarimetry of Misaligned Disks around the SR 24 Hierarchical Triple System

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