Near-IR high-resolution imaging polarimetry of the SU Aur disk: Clues for tidal tails?

Jerome De Leon; Michihiro Takami; Jennifer L. Karr; Jun Hashimoto; Tomoyuki Kudo; Michael Sitko; Satoshi Mayama; Nobuyuki Kusakabe; Eiji Akiyama; Hauyu Baobab Liu; Tomonori Usuda; Lyu Abe; Wolfgang Brandner; Timothy D. Brandt; Joseph Carson; Thayne Currie; Sebastian E. Egner; Markus Feldt; Katherine Follette; Carol A. Grady; Miwa Goto; Olivier Guyon; Yutaka Hayano; Masahiko Hayashi; Saeko Hayashi; Thomas Henning; Klaus W. Hodapp; Miki Ishii; Masanori Iye; Markus Janson; Ryo Kandori; Gillian R. Knapp; Masayuki Kuzuhara; Jungmi Kwon; 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 Takahashi; Naruhisa Takato; Hiroshi Terada; Christian Thalmann; Daigo Tomono; Edwin L. Turner; Makoto Watanabe; John P. Wisniewski; Toru Yamada; Hideki Takami; Motohide Tamura

doi:10.1088/2041-8205/806/1/L10

Near-IR high-resolution imaging polarimetry of the SU Aur disk: Clues for tidal tails?

Jerome De Leon, Michihiro Takami, Jennifer L. Karr, Jun Hashimoto, Tomoyuki Kudo, Michael Sitko, Satoshi Mayama, Nobuyuki Kusakabe, Eiji Akiyama, Hauyu Baobab Liu, Tomonori Usuda, Lyu Abe, Wolfgang Brandner, Timothy D. Brandt, Joseph Carson, Thayne Currie, Sebastian E. Egner, Markus Feldt, Katherine Follette, Carol A. GradyMiwa Goto, Olivier Guyon, Yutaka Hayano, Masahiko Hayashi, Saeko Hayashi, Thomas Henning, Klaus W. Hodapp, Miki Ishii, Masanori Iye, Markus Janson, Ryo Kandori, Gillian R. Knapp, Masayuki Kuzuhara, Jungmi Kwon, 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 Takahashi, Naruhisa Takato, Hiroshi Terada, Christian Thalmann, Daigo Tomono, Edwin L. Turner, Makoto Watanabe, John P. Wisniewski, Toru Yamada, Hideki Takami, Motohide Tamura

Research output: Contribution to journal › Article › peer-review

16 Scopus citations

Abstract

We present new high-resolution (∼0.″09) H-band imaging observations of the circumstellar disk around the T Tauri star SU Aur. Our observations with Subaru-HiCIAO have revealed the presence of scattered light as close as 0″. 15 (∼20 AU) to the star. Within our image, we identify bright emission associated with a disk with a minimum radius of ∼90 AU, an inclination of ∼35° from the plane of the sky, and an approximate PA of 15° for the major axis. We find a brightness asymmetry between the northern and southern sides of the disk due to a non-axisymmetric disk structure. We also identify a pair of asymmetric tail structures extending east and west from the disk. The western tail extends at least 2″. 5 (350 AU) from the star, and is probably associated with a reflection nebula previously observed at optical and near-IR wavelengths. The eastern tail extends at least 1″ (140 AU) at the present signal-tonoise. These tails are likely due to an encounter with an unseen brown dwarf, but our results do not exclude the explanation that these tails are outflow cavities or jets.

Original language	English (US)
Article number	L10
Journal	Astrophysical Journal Letters
Volume	806
Issue number	1
DOIs	https://doi.org/10.1088/2041-8205/806/1/L10
State	Published - Jun 10 2015
Externally published	Yes

Keywords

polarization
protoplanetary disks
stars: individual (SU Aur)
stars: pre-main sequence

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/2041-8205/806/1/L10

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Leon, J. D., Takami, M., Karr, J. L., Hashimoto, J., Kudo, T., Sitko, M., Mayama, S., Kusakabe, N., Akiyama, E., Liu, H. B., Usuda, T., Abe, L., Brandner, W., Brandt, T. D., Carson, J., Currie, T., Egner, S. E., Feldt, M., Follette, K., ... Tamura, M. (2015). Near-IR high-resolution imaging polarimetry of the SU Aur disk: Clues for tidal tails? Astrophysical Journal Letters, 806(1), Article L10. https://doi.org/10.1088/2041-8205/806/1/L10

Leon, JD, Takami, M, Karr, JL, Hashimoto, J, Kudo, T, Sitko, M, Mayama, S, Kusakabe, N, Akiyama, E, Liu, HB, Usuda, T, Abe, L, Brandner, W, Brandt, TD, Carson, J, Currie, T, Egner, SE, Feldt, M, Follette, K, Grady, CA, Goto, M, Guyon, O, Hayano, Y, Hayashi, M, Hayashi, S, 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, Martin, AM, Nishimura, T, Pyo, TS, Serabyn, E, Suenaga, T, Suto, H, Suzuki, R, Takahashi, Y, Takato, N, Terada, H, Thalmann, C, Tomono, D, Turner, EL, Watanabe, M, Wisniewski, JP, Yamada, T, Takami, H & Tamura, M 2015, 'Near-IR high-resolution imaging polarimetry of the SU Aur disk: Clues for tidal tails?', Astrophysical Journal Letters, vol. 806, no. 1, L10. https://doi.org/10.1088/2041-8205/806/1/L10

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title = "Near-IR high-resolution imaging polarimetry of the SU Aur disk: Clues for tidal tails?",

abstract = "We present new high-resolution (∼0.″09) H-band imaging observations of the circumstellar disk around the T Tauri star SU Aur. Our observations with Subaru-HiCIAO have revealed the presence of scattered light as close as 0″. 15 (∼20 AU) to the star. Within our image, we identify bright emission associated with a disk with a minimum radius of ∼90 AU, an inclination of ∼35° from the plane of the sky, and an approximate PA of 15° for the major axis. We find a brightness asymmetry between the northern and southern sides of the disk due to a non-axisymmetric disk structure. We also identify a pair of asymmetric tail structures extending east and west from the disk. The western tail extends at least 2″. 5 (350 AU) from the star, and is probably associated with a reflection nebula previously observed at optical and near-IR wavelengths. The eastern tail extends at least 1″ (140 AU) at the present signal-tonoise. These tails are likely due to an encounter with an unseen brown dwarf, but our results do not exclude the explanation that these tails are outflow cavities or jets.",

keywords = "polarization, protoplanetary disks, stars: individual (SU Aur), stars: pre-main sequence",

author = "Leon, {Jerome De} and Michihiro Takami and Karr, {Jennifer L.} and Jun Hashimoto and Tomoyuki Kudo and Michael Sitko and Satoshi Mayama and Nobuyuki Kusakabe and Eiji Akiyama and Liu, {Hauyu Baobab} and Tomonori Usuda and Lyu Abe and Wolfgang Brandner and Brandt, {Timothy D.} and Joseph Carson and Thayne Currie and Egner, {Sebastian E.} and Markus Feldt and Katherine Follette and Grady, {Carol A.} and Miwa Goto and Olivier Guyon and Yutaka Hayano and Masahiko Hayashi and Saeko Hayashi and Thomas Henning and Hodapp, {Klaus W.} and Miki Ishii and Masanori Iye and Markus Janson and Ryo Kandori and Knapp, {Gillian R.} and Masayuki Kuzuhara and Jungmi Kwon and Taro Matsuo and McElwain, {Michael W.} and Shoken Miyama and Morino, {Jun Ichi} and Martin, {Amaya Moro} and Tetsuo Nishimura and Pyo, {Tae Soo} and Eugene Serabyn and Takuya Suenaga and Hiroshi Suto and Ryuji Suzuki and Yasuhiro Takahashi and Naruhisa Takato and Hiroshi Terada and Christian Thalmann and Daigo Tomono and Turner, {Edwin L.} and Makoto Watanabe and Wisniewski, {John P.} and Toru Yamada and Hideki Takami and Motohide Tamura",

year = "2015",

month = jun,

day = "10",

doi = "10.1088/2041-8205/806/1/L10",

language = "English (US)",

volume = "806",

journal = "Astrophysical Journal Letters",

issn = "2041-8205",

publisher = "American Astronomical Society",

number = "1",

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TY - JOUR

T1 - Near-IR high-resolution imaging polarimetry of the SU Aur disk

T2 - Clues for tidal tails?

AU - Leon, Jerome De

AU - Takami, Michihiro

AU - Karr, Jennifer L.

AU - Hashimoto, Jun

AU - Kudo, Tomoyuki

AU - Sitko, Michael

AU - Mayama, Satoshi

AU - Kusakabe, Nobuyuki

AU - Akiyama, Eiji

AU - Liu, Hauyu Baobab

AU - Usuda, Tomonori

AU - Abe, Lyu

AU - Brandner, Wolfgang

AU - Brandt, Timothy D.

AU - Carson, Joseph

AU - Currie, Thayne

AU - Egner, Sebastian E.

AU - Feldt, Markus

AU - Follette, Katherine

AU - Grady, Carol A.

AU - Goto, Miwa

AU - Guyon, Olivier

AU - Hayano, Yutaka

AU - Hayashi, Masahiko

AU - Hayashi, Saeko

AU - Henning, Thomas

AU - Hodapp, Klaus W.

AU - Ishii, Miki

AU - Iye, Masanori

AU - Janson, Markus

AU - Kandori, Ryo

AU - Knapp, Gillian R.

AU - Kuzuhara, Masayuki

AU - Kwon, Jungmi

AU - Matsuo, Taro

AU - McElwain, Michael W.

AU - Miyama, Shoken

AU - Morino, Jun Ichi

AU - Martin, Amaya Moro

AU - Nishimura, Tetsuo

AU - Pyo, Tae Soo

AU - Serabyn, Eugene

AU - Suenaga, Takuya

AU - Suto, Hiroshi

AU - Suzuki, Ryuji

AU - Takahashi, Yasuhiro

AU - Takato, Naruhisa

AU - Terada, Hiroshi

AU - Thalmann, Christian

AU - Tomono, Daigo

AU - Turner, Edwin L.

AU - Watanabe, Makoto

AU - Wisniewski, John P.

AU - Yamada, Toru

AU - Takami, Hideki

AU - Tamura, Motohide

PY - 2015/6/10

Y1 - 2015/6/10

N2 - We present new high-resolution (∼0.″09) H-band imaging observations of the circumstellar disk around the T Tauri star SU Aur. Our observations with Subaru-HiCIAO have revealed the presence of scattered light as close as 0″. 15 (∼20 AU) to the star. Within our image, we identify bright emission associated with a disk with a minimum radius of ∼90 AU, an inclination of ∼35° from the plane of the sky, and an approximate PA of 15° for the major axis. We find a brightness asymmetry between the northern and southern sides of the disk due to a non-axisymmetric disk structure. We also identify a pair of asymmetric tail structures extending east and west from the disk. The western tail extends at least 2″. 5 (350 AU) from the star, and is probably associated with a reflection nebula previously observed at optical and near-IR wavelengths. The eastern tail extends at least 1″ (140 AU) at the present signal-tonoise. These tails are likely due to an encounter with an unseen brown dwarf, but our results do not exclude the explanation that these tails are outflow cavities or jets.

AB - We present new high-resolution (∼0.″09) H-band imaging observations of the circumstellar disk around the T Tauri star SU Aur. Our observations with Subaru-HiCIAO have revealed the presence of scattered light as close as 0″. 15 (∼20 AU) to the star. Within our image, we identify bright emission associated with a disk with a minimum radius of ∼90 AU, an inclination of ∼35° from the plane of the sky, and an approximate PA of 15° for the major axis. We find a brightness asymmetry between the northern and southern sides of the disk due to a non-axisymmetric disk structure. We also identify a pair of asymmetric tail structures extending east and west from the disk. The western tail extends at least 2″. 5 (350 AU) from the star, and is probably associated with a reflection nebula previously observed at optical and near-IR wavelengths. The eastern tail extends at least 1″ (140 AU) at the present signal-tonoise. These tails are likely due to an encounter with an unseen brown dwarf, but our results do not exclude the explanation that these tails are outflow cavities or jets.

KW - polarization

KW - protoplanetary disks

KW - stars: individual (SU Aur)

KW - stars: pre-main sequence

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U2 - 10.1088/2041-8205/806/1/L10

DO - 10.1088/2041-8205/806/1/L10

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SN - 2041-8205

VL - 806

JO - Astrophysical Journal Letters

JF - Astrophysical Journal Letters

IS - 1

M1 - L10

ER -

Near-IR high-resolution imaging polarimetry of the SU Aur disk: Clues for tidal tails?

Abstract

Keywords

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