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Search: onr:"swepub:oai:DiVA.org:su-116558" > Morino Jun Ichi > SEEDS ADAPTIVE OPTI...

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SEEDS ADAPTIVE OPTICS IMAGING OF THE ASYMMETRIC TRANSITION DISK OPH IRS 48 IN SCATTERED LIGHT

Follette, Katherine B. (author)
Grady, Carol A. (author)
Swearingen, Jeremy R. (author)
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Sitko, Michael L. (author)
Champney, Elizabeth H. (author)
van der Marel, Nienke (author)
Takami, Michihiro (author)
Kuchner, Marc J. (author)
Close, Laird M. (author)
Muto, Takayuki (author)
Mayama, Satoshi (author)
McElwain, Michael W. (author)
Fukagawa, Misato (author)
Maaskant, Koen (author)
Min, Michiel (author)
Russell, Ray W. (author)
Kudo, Tomoyuki (author)
Kusakabe, Nobuhiko (author)
Hashimoto, Jun (author)
Abe, Lyu (author)
Akiyama, Eiji (author)
Brandner, Wolfgang (author)
Brandt, Timothy D. (author)
Carson, Joseph (author)
Currie, Thayne (author)
Egner, Sebastian E. (author)
Feldt, Markus (author)
Goto, Miwa (author)
Guyon, Olivier (author)
Hayano, Yutaka (author)
Hayashi, Masahiko (author)
Hayashi, Saeko (author)
Henning, Thomas (author)
Hodapp, Klaus (author)
Ishii, Miki (author)
Iye, Masanori (author)
Janson, Markus (author)
Stockholms universitet,Institutionen för astronomi
Kandori, Ryo (author)
Knapp, Gillian R. (author)
Kuzuhara, Masayuki (author)
Kwon, Jungmi (author)
Matsuo, Taro (author)
Miyama, Shoken (author)
Morino, Jun-Ichi (author)
Moro-Martin, Amaya (author)
Nishimura, Tetsuo (author)
Pyo, Tae-Soo (author)
Serabyn, Eugene (author)
Suenaga, Takuya (author)
Suto, Hiroshi (author)
Suzuki, Ryuji (author)
Takahashi, Yasuhiro (author)
Takato, Naruhisa (author)
Terada, Hiroshi (author)
Thalmann, Christian (author)
Tomono, Daigo (author)
Turner, Edwin L. (author)
Watanabe, Makoto (author)
Wisniewski, John P. (author)
Yamada, Toru (author)
Takami, Hideki (author)
Usuda, Tomonori (author)
Tamura, Motohide (author)
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 (creator_code:org_t)
2015
2015
English.
In: Astrophysical Journal. - 0004-637X .- 1538-4357. ; 798:2
  • Journal article (peer-reviewed)
Abstract Subject headings
Close  
  • 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 similar to 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 mu m 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-circle dot 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.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

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

Publication and Content Type

ref (subject category)
art (subject category)

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