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  • Follette, Katherine B. (author)

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

  • Article/chapterEnglish2015

Publisher, publication year, extent ...

  • 2015
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:su-116558
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-116558URI
  • https://doi.org/10.1088/0004-637X/798/2/132DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

Notes

  • AuthorCount:63;
  • 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 and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Grady, Carol A. (author)
  • Swearingen, Jeremy R. (author)
  • 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, MarkusStockholms universitet,Institutionen för astronomi(Swepub:su)mjanso (author)
  • 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)
  • Stockholms universitetInstitutionen för astronomi (creator_code:org_t)

Related titles

  • In:Astrophysical Journal798:20004-637X1538-4357

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