Seeds adaptive optics imaging of the asymmetric transition disk oph irs 48 in scattered light

Katherine B. Follette, Carol A. Grady, Jeremy R. Swearingen, Michael L. Sitko, Elizabeth H. Champney, Nienke Van Der Marel, Michihiro Takami, Marc J. Kuchner, Laird M Close, Takayuki Muto, Satoshi Mayama, Michael W. McElwain, Misato Fukagawa, Koen Maaskant, Michiel Min, Ray W. Russell, Tomoyuki Kudo, Nobuhiko Kusakabe, Jun Hashimoto, Lyu Abe & 43 others Eiji Akiyama, Wolfgang Brandner, Timothy D. Brandt, Joseph Carson, Thayne Currie, Sebastian E. Egner, Markus Feldt, Miwa Goto, Olivier Guyon, Yutaka Hayano, Masahiko Hayashi, Saeko Hayashi, Thomas Henning, Klaus Hodapp, Miki Ishii, Masanori Iye, Markus Janson, Ryo Kandori, Gillian R. Knapp, Masayuki Kuzuhara, Jungmi Kwon, Taro Matsuo, 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, Tomonori Usuda, Motohide Tamura

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

We present the first resolved near-infrared imagery of the transition disk Oph IRS 48 (WLY 2-48), which was recently observed with ALMA to have a strongly asymmetric submillimeter flux distribution. H-band polarized intensity images show a 60 AU radius scattered light cavity with two pronounced arcs of emission, one from northeast to southeast and one smaller, fainter, and more distant arc in the northwest. K-band scattered light imagery reveals a similar morphology, but with a clear third arc along the southwestern rim of the disk cavity. This arc meets the northwestern arc at nearly a right angle, revealing the presence of a spiral arm or local surface brightness deficit in the disk, and explaining the east-west brightness asymmetry in the H-band data. We also present 0.8-5.4 μm IRTF SpeX spectra of this object, which allow us to constrain the spectral class to A0 ± 1 and measure a low mass accretion rate of 10-8.5 Myr-1, both consistent with previous estimates. We investigate a variety of reddening laws in order to fit the multiwavelength spectral energy distribution of Oph IRS 48 and find a best fit consistent with a younger, higher luminosity star than previous estimates.

Original languageEnglish (US)
Article number132
JournalAstrophysical Journal
Volume798
Issue number2
DOIs
StatePublished - Jan 10 2015

Fingerprint

adaptive optics
seeds
cavity
arcs
seed
infrared imagery
Indian spacecraft
asymmetry
near infrared
imagery
accretion
brightness
cavities
energy
estimates
spectral energy distribution
extremely high frequencies
rims
luminosity
distribution

Keywords

  • instrumentation: adaptive optics
  • instrumentation: polarimeters
  • planets and satellites: formation
  • protoplanetary disks

ASJC Scopus subject areas

  • Space and Planetary Science
  • Astronomy and Astrophysics

Cite this

Follette, K. B., Grady, C. A., Swearingen, J. R., Sitko, M. L., Champney, E. H., Van Der Marel, N., ... Tamura, M. (2015). Seeds adaptive optics imaging of the asymmetric transition disk oph irs 48 in scattered light. Astrophysical Journal, 798(2), [132]. https://doi.org/10.1088/0004-637X/798/2/132

Seeds adaptive optics imaging of the asymmetric transition disk oph irs 48 in scattered light. / Follette, Katherine B.; Grady, Carol A.; Swearingen, Jeremy R.; Sitko, Michael L.; Champney, Elizabeth H.; Van Der Marel, Nienke; Takami, Michihiro; Kuchner, Marc J.; Close, Laird M; Muto, Takayuki; Mayama, Satoshi; McElwain, Michael W.; Fukagawa, Misato; Maaskant, Koen; Min, Michiel; Russell, Ray W.; Kudo, Tomoyuki; Kusakabe, Nobuhiko; Hashimoto, Jun; Abe, Lyu; Akiyama, Eiji; Brandner, Wolfgang; Brandt, Timothy D.; Carson, Joseph; Currie, Thayne; Egner, Sebastian E.; Feldt, Markus; Goto, Miwa; Guyon, Olivier; Hayano, Yutaka; Hayashi, Masahiko; Hayashi, Saeko; Henning, Thomas; Hodapp, Klaus; Ishii, Miki; Iye, Masanori; Janson, Markus; Kandori, Ryo; Knapp, Gillian R.; Kuzuhara, Masayuki; Kwon, Jungmi; Matsuo, Taro; Miyama, Shoken; Morino, Jun Ichi; Moro-Martin, Amaya; Nishimura, Tetsuo; Pyo, Tae Soo; Serabyn, Eugene; Suenaga, Takuya; Suto, Hiroshi; Suzuki, Ryuji; Takahashi, Yasuhiro; Takato, Naruhisa; Terada, Hiroshi; Thalmann, Christian; Tomono, Daigo; Turner, Edwin L.; Watanabe, Makoto; Wisniewski, John P.; Yamada, Toru; Takami, Hideki; Usuda, Tomonori; Tamura, Motohide.

In: Astrophysical Journal, Vol. 798, No. 2, 132, 10.01.2015.

Research output: Contribution to journalArticle

Follette, KB, Grady, CA, Swearingen, JR, Sitko, ML, Champney, EH, Van Der Marel, N, Takami, M, Kuchner, MJ, Close, LM, Muto, T, Mayama, S, McElwain, MW, Fukagawa, M, Maaskant, K, Min, M, Russell, RW, Kudo, T, Kusakabe, N, Hashimoto, J, Abe, L, Akiyama, E, Brandner, W, Brandt, TD, Carson, J, Currie, T, Egner, SE, Feldt, M, Goto, M, Guyon, O, Hayano, Y, Hayashi, M, Hayashi, S, Henning, T, Hodapp, K, Ishii, M, Iye, M, Janson, M, Kandori, R, Knapp, GR, Kuzuhara, M, Kwon, J, Matsuo, T, Miyama, S, Morino, JI, Moro-Martin, A, 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, Usuda, T & Tamura, M 2015, 'Seeds adaptive optics imaging of the asymmetric transition disk oph irs 48 in scattered light', Astrophysical Journal, vol. 798, no. 2, 132. https://doi.org/10.1088/0004-637X/798/2/132
Follette KB, Grady CA, Swearingen JR, Sitko ML, Champney EH, Van Der Marel N et al. Seeds adaptive optics imaging of the asymmetric transition disk oph irs 48 in scattered light. Astrophysical Journal. 2015 Jan 10;798(2). 132. https://doi.org/10.1088/0004-637X/798/2/132
Follette, Katherine B. ; Grady, Carol A. ; Swearingen, Jeremy R. ; Sitko, Michael L. ; Champney, Elizabeth H. ; Van Der Marel, Nienke ; Takami, Michihiro ; Kuchner, Marc J. ; Close, Laird M ; Muto, Takayuki ; Mayama, Satoshi ; McElwain, Michael W. ; Fukagawa, Misato ; Maaskant, Koen ; Min, Michiel ; Russell, Ray W. ; Kudo, Tomoyuki ; Kusakabe, Nobuhiko ; Hashimoto, Jun ; Abe, Lyu ; Akiyama, Eiji ; Brandner, Wolfgang ; Brandt, Timothy D. ; Carson, Joseph ; Currie, Thayne ; Egner, Sebastian E. ; Feldt, Markus ; Goto, Miwa ; Guyon, Olivier ; Hayano, Yutaka ; Hayashi, Masahiko ; Hayashi, Saeko ; Henning, Thomas ; Hodapp, Klaus ; Ishii, Miki ; Iye, Masanori ; Janson, Markus ; Kandori, Ryo ; Knapp, Gillian R. ; Kuzuhara, Masayuki ; Kwon, Jungmi ; Matsuo, Taro ; Miyama, Shoken ; Morino, Jun Ichi ; Moro-Martin, Amaya ; Nishimura, Tetsuo ; Pyo, Tae Soo ; Serabyn, Eugene ; Suenaga, Takuya ; Suto, Hiroshi ; Suzuki, Ryuji ; Takahashi, Yasuhiro ; Takato, Naruhisa ; Terada, Hiroshi ; Thalmann, Christian ; Tomono, Daigo ; Turner, Edwin L. ; Watanabe, Makoto ; Wisniewski, John P. ; Yamada, Toru ; Takami, Hideki ; Usuda, Tomonori ; Tamura, Motohide. / Seeds adaptive optics imaging of the asymmetric transition disk oph irs 48 in scattered light. In: Astrophysical Journal. 2015 ; Vol. 798, No. 2.
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abstract = "We present the first resolved near-infrared imagery of the transition disk Oph IRS 48 (WLY 2-48), which was recently observed with ALMA to have a strongly asymmetric submillimeter flux distribution. H-band polarized intensity images show a 60 AU radius scattered light cavity with two pronounced arcs of emission, one from northeast to southeast and one smaller, fainter, and more distant arc in the northwest. K-band scattered light imagery reveals a similar morphology, but with a clear third arc along the southwestern rim of the disk cavity. This arc meets the northwestern arc at nearly a right angle, revealing the presence of a spiral arm or local surface brightness deficit in the disk, and explaining the east-west brightness asymmetry in the H-band data. We also present 0.8-5.4 μm IRTF SpeX spectra of this object, which allow us to constrain the spectral class to A0 ± 1 and measure a low mass accretion rate of 10-8.5 M⊙yr-1, both consistent with previous estimates. We investigate a variety of reddening laws in order to fit the multiwavelength spectral energy distribution of Oph IRS 48 and find a best fit consistent with a younger, higher luminosity star than previous estimates.",
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T1 - Seeds adaptive optics imaging of the asymmetric transition disk oph irs 48 in scattered light

AU - Follette, Katherine B.

AU - Grady, Carol A.

AU - Swearingen, Jeremy R.

AU - Sitko, Michael L.

AU - Champney, Elizabeth H.

AU - Van Der Marel, Nienke

AU - Takami, Michihiro

AU - Kuchner, Marc J.

AU - Close, Laird M

AU - Muto, Takayuki

AU - Mayama, Satoshi

AU - McElwain, Michael W.

AU - Fukagawa, Misato

AU - Maaskant, Koen

AU - Min, Michiel

AU - Russell, Ray W.

AU - Kudo, Tomoyuki

AU - Kusakabe, Nobuhiko

AU - Hashimoto, Jun

AU - Abe, Lyu

AU - Akiyama, Eiji

AU - Brandner, Wolfgang

AU - Brandt, Timothy D.

AU - Carson, Joseph

AU - Currie, Thayne

AU - Egner, Sebastian E.

AU - Feldt, Markus

AU - Goto, Miwa

AU - Guyon, Olivier

AU - Hayano, Yutaka

AU - Hayashi, Masahiko

AU - Hayashi, Saeko

AU - Henning, Thomas

AU - Hodapp, Klaus

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 - 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

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 - Usuda, Tomonori

AU - Tamura, Motohide

PY - 2015/1/10

Y1 - 2015/1/10

N2 - We present the first resolved near-infrared imagery of the transition disk Oph IRS 48 (WLY 2-48), which was recently observed with ALMA to have a strongly asymmetric submillimeter flux distribution. H-band polarized intensity images show a 60 AU radius scattered light cavity with two pronounced arcs of emission, one from northeast to southeast and one smaller, fainter, and more distant arc in the northwest. K-band scattered light imagery reveals a similar morphology, but with a clear third arc along the southwestern rim of the disk cavity. This arc meets the northwestern arc at nearly a right angle, revealing the presence of a spiral arm or local surface brightness deficit in the disk, and explaining the east-west brightness asymmetry in the H-band data. We also present 0.8-5.4 μm IRTF SpeX spectra of this object, which allow us to constrain the spectral class to A0 ± 1 and measure a low mass accretion rate of 10-8.5 M⊙yr-1, both consistent with previous estimates. We investigate a variety of reddening laws in order to fit the multiwavelength spectral energy distribution of Oph IRS 48 and find a best fit consistent with a younger, higher luminosity star than previous estimates.

AB - We present the first resolved near-infrared imagery of the transition disk Oph IRS 48 (WLY 2-48), which was recently observed with ALMA to have a strongly asymmetric submillimeter flux distribution. H-band polarized intensity images show a 60 AU radius scattered light cavity with two pronounced arcs of emission, one from northeast to southeast and one smaller, fainter, and more distant arc in the northwest. K-band scattered light imagery reveals a similar morphology, but with a clear third arc along the southwestern rim of the disk cavity. This arc meets the northwestern arc at nearly a right angle, revealing the presence of a spiral arm or local surface brightness deficit in the disk, and explaining the east-west brightness asymmetry in the H-band data. We also present 0.8-5.4 μm IRTF SpeX spectra of this object, which allow us to constrain the spectral class to A0 ± 1 and measure a low mass accretion rate of 10-8.5 M⊙yr-1, both consistent with previous estimates. We investigate a variety of reddening laws in order to fit the multiwavelength spectral energy distribution of Oph IRS 48 and find a best fit consistent with a younger, higher luminosity star than previous estimates.

KW - instrumentation: adaptive optics

KW - instrumentation: polarimeters

KW - planets and satellites: formation

KW - protoplanetary disks

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