Near-infrared polarimetry of the GG Tauri A binary system

Yoichi Itoh; Yumiko Oasa; Tomoyuki Kudo; Nobuhiko Kusakabe; Jun Hashimoto; Lyu Abe; Wolfgang Brandner; Timothy D. Brandt; Joseph C. Carson; Sebastian Egner; Markus Feldt; Carol A. Grady; Olivier Guyon; Yutaka Hayano; Masahiko Hayashi; Saeko S. 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 H. Takahashi; Naruhisa Takato; Hiroshi Terada; Christian Thalmann; Daigo Tomono; Edwin L. Turner; Makoto Watanabe; John Wisniewski; Toru Yamada; Satoshi Mayama; Thayne Currie; Hideki Takami; Tomonori Usuda; Motohide Tamura

doi:10.1088/1674-4527/14/11/007

Near-infrared polarimetry of the GG Tauri A binary system

Yoichi Itoh, Yumiko Oasa, Tomoyuki Kudo, Nobuhiko Kusakabe, Jun Hashimoto, Lyu Abe, Wolfgang Brandner, Timothy D. Brandt, Joseph C. Carson, Sebastian Egner, Markus Feldt, Carol A. Grady, Olivier Guyon, Yutaka Hayano, Masahiko Hayashi, Saeko S. Hayashi, Thomas Henning, Klaus W. Hodapp, Miki Ishii, Masanori IyeMarkus 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 H. Takahashi, Naruhisa Takato, Hiroshi Terada, Christian Thalmann, Daigo Tomono, Edwin L. Turner, Makoto Watanabe, John Wisniewski, Toru Yamada, Satoshi Mayama, Thayne Currie, Hideki Takami, Tomonori Usuda, Motohide Tamura

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

18 Scopus citations

Abstract

A high angular resolution near-infrared image that shows the intensity of polarization for the GG Tau A binary system was obtained with the Subaru Telescope. The image shows a circumbinary disk scattering the light from the central binary. The azimuthal profile of the intensity of polarization for the circumbinary disk is roughly reproduced by a simple disk model with the Henyey-Greenstein phase function and the Rayleigh function, indicating there are small dust grains at the surface of the disk. Combined with a previous observation of the circumbinary disk, our image indicates that the gap structure in the circumbinary disk orbits counterclockwise, but material in the disk orbits clockwise. We propose that there is a shadow caused by material located between the central binary and the circumbinary disk. The separations and position angles of the stellar components of the binary in the past 20 yr are consistent with the binary orbit with a = 33.4 AU and e = 0.34.

Original language	English (US)
Pages (from-to)	1438-1446
Number of pages	9
Journal	Research in Astronomy and Astrophysics
Volume	14
Issue number	11
DOIs	https://doi.org/10.1088/1674-4527/14/11/007
State	Published - Nov 1 2014
Externally published	Yes

Keywords

stars: individual (GG Tauri)
stars: pre-main sequence
techniques: high angular resolution

ASJC Scopus subject areas

Astronomy and Astrophysics
Space and Planetary Science

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10.1088/1674-4527/14/11/007

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Itoh, Y., Oasa, Y., Kudo, T., Kusakabe, N., Hashimoto, J., Abe, L., Brandner, W., Brandt, T. D., Carson, J. C., Egner, S., Feldt, M., Grady, C. A., Guyon, O., Hayano, Y., Hayashi, M., Hayashi, S. S., Henning, T., Hodapp, K. W., Ishii, M., ... Tamura, M. (2014). Near-infrared polarimetry of the GG Tauri A binary system. Research in Astronomy and Astrophysics, 14(11), 1438-1446. https://doi.org/10.1088/1674-4527/14/11/007

Itoh, Y, Oasa, Y, Kudo, T, Kusakabe, N, Hashimoto, J, Abe, L, Brandner, W, Brandt, TD, Carson, JC, Egner, S, Feldt, 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, Thalmann, C, Tomono, D, Turner, EL, Watanabe, M, Wisniewski, J, Yamada, T, Mayama, S, Currie, T, Takami, H, Usuda, T & Tamura, M 2014, 'Near-infrared polarimetry of the GG Tauri A binary system', Research in Astronomy and Astrophysics, vol. 14, no. 11, pp. 1438-1446. https://doi.org/10.1088/1674-4527/14/11/007

@article{0b5e2f38b12b4c289d79c7e79e47aa50,

title = "Near-infrared polarimetry of the GG Tauri A binary system",

abstract = "A high angular resolution near-infrared image that shows the intensity of polarization for the GG Tau A binary system was obtained with the Subaru Telescope. The image shows a circumbinary disk scattering the light from the central binary. The azimuthal profile of the intensity of polarization for the circumbinary disk is roughly reproduced by a simple disk model with the Henyey-Greenstein phase function and the Rayleigh function, indicating there are small dust grains at the surface of the disk. Combined with a previous observation of the circumbinary disk, our image indicates that the gap structure in the circumbinary disk orbits counterclockwise, but material in the disk orbits clockwise. We propose that there is a shadow caused by material located between the central binary and the circumbinary disk. The separations and position angles of the stellar components of the binary in the past 20 yr are consistent with the binary orbit with a = 33.4 AU and e = 0.34.",

keywords = "stars: individual (GG Tauri), stars: pre-main sequence, techniques: high angular resolution",

author = "Yoichi Itoh and Yumiko Oasa and Tomoyuki Kudo and Nobuhiko Kusakabe and Jun Hashimoto and Lyu Abe and Wolfgang Brandner and Brandt, {Timothy D.} and Carson, {Joseph C.} and Sebastian Egner and Markus Feldt and Grady, {Carol A.} and Olivier Guyon and Yutaka Hayano and Masahiko Hayashi and Hayashi, {Saeko S.} 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 Amaya Moro-Martin and Tetsuo Nishimura and Pyo, {Tae Soo} and Eugene Serabyn and Takuya Suenaga and Hiroshi Suto and Ryuji Suzuki and Takahashi, {Yasuhiro H.} and Naruhisa Takato and Hiroshi Terada and Christian Thalmann and Daigo Tomono and Turner, {Edwin L.} and Makoto Watanabe and John Wisniewski and Toru Yamada and Satoshi Mayama and Thayne Currie and Hideki Takami and Tomonori Usuda and Motohide Tamura",

note = "Publisher Copyright: {\textcopyright} 2014 National Astronomical Observatories of Chinese Academy of Sciences and IOP Publishing Ltd..",

year = "2014",

month = nov,

day = "1",

doi = "10.1088/1674-4527/14/11/007",

language = "English (US)",

volume = "14",

pages = "1438--1446",

journal = "Research in Astronomy and Astrophysics",

issn = "1674-4527",

publisher = "IOP Publishing Ltd.",

number = "11",

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TY - JOUR

T1 - Near-infrared polarimetry of the GG Tauri A binary system

AU - Itoh, Yoichi

AU - Oasa, Yumiko

AU - Kudo, Tomoyuki

AU - Kusakabe, Nobuhiko

AU - Hashimoto, Jun

AU - Abe, Lyu

AU - Brandner, Wolfgang

AU - Brandt, Timothy D.

AU - Carson, Joseph C.

AU - Egner, Sebastian

AU - Feldt, Markus

AU - Grady, Carol A.

AU - Guyon, Olivier

AU - Hayano, Yutaka

AU - Hayashi, Masahiko

AU - Hayashi, Saeko S.

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 - Moro-Martin, Amaya

AU - Nishimura, Tetsuo

AU - Pyo, Tae Soo

AU - Serabyn, Eugene

AU - Suenaga, Takuya

AU - Suto, Hiroshi

AU - Suzuki, Ryuji

AU - Takahashi, Yasuhiro H.

AU - Takato, Naruhisa

AU - Terada, Hiroshi

AU - Thalmann, Christian

AU - Tomono, Daigo

AU - Turner, Edwin L.

AU - Watanabe, Makoto

AU - Wisniewski, John

AU - Yamada, Toru

AU - Mayama, Satoshi

AU - Currie, Thayne

AU - Takami, Hideki

AU - Usuda, Tomonori

AU - Tamura, Motohide

PY - 2014/11/1

Y1 - 2014/11/1

N2 - A high angular resolution near-infrared image that shows the intensity of polarization for the GG Tau A binary system was obtained with the Subaru Telescope. The image shows a circumbinary disk scattering the light from the central binary. The azimuthal profile of the intensity of polarization for the circumbinary disk is roughly reproduced by a simple disk model with the Henyey-Greenstein phase function and the Rayleigh function, indicating there are small dust grains at the surface of the disk. Combined with a previous observation of the circumbinary disk, our image indicates that the gap structure in the circumbinary disk orbits counterclockwise, but material in the disk orbits clockwise. We propose that there is a shadow caused by material located between the central binary and the circumbinary disk. The separations and position angles of the stellar components of the binary in the past 20 yr are consistent with the binary orbit with a = 33.4 AU and e = 0.34.

AB - A high angular resolution near-infrared image that shows the intensity of polarization for the GG Tau A binary system was obtained with the Subaru Telescope. The image shows a circumbinary disk scattering the light from the central binary. The azimuthal profile of the intensity of polarization for the circumbinary disk is roughly reproduced by a simple disk model with the Henyey-Greenstein phase function and the Rayleigh function, indicating there are small dust grains at the surface of the disk. Combined with a previous observation of the circumbinary disk, our image indicates that the gap structure in the circumbinary disk orbits counterclockwise, but material in the disk orbits clockwise. We propose that there is a shadow caused by material located between the central binary and the circumbinary disk. The separations and position angles of the stellar components of the binary in the past 20 yr are consistent with the binary orbit with a = 33.4 AU and e = 0.34.

KW - stars: individual (GG Tauri)

KW - stars: pre-main sequence

KW - techniques: high angular resolution

UR - http://www.scopus.com/inward/record.url?scp=84908326471&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84908326471&partnerID=8YFLogxK

U2 - 10.1088/1674-4527/14/11/007

DO - 10.1088/1674-4527/14/11/007

M3 - Article

AN - SCOPUS:84908326471

SN - 1674-4527

VL - 14

SP - 1438

EP - 1446

JO - Research in Astronomy and Astrophysics

JF - Research in Astronomy and Astrophysics

IS - 11

ER -

Near-infrared polarimetry of the GG Tauri A binary system

Abstract

Keywords

ASJC Scopus subject areas

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