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dc.contributor.authorCurrie, T.
dc.contributor.authorGuyon, O.
dc.contributor.authorTamura, Motohide
dc.contributor.authorKudo, Tomoyuki
dc.contributor.authorJovanovic, Nemanja
dc.contributor.authorLozi, Julien
dc.contributor.authorSchlieder, Joshua E.
dc.contributor.authorBrandt, Timothy D.
dc.contributor.authorKuhn, Jonas
dc.contributor.authorSerabyn, Eugene
dc.contributor.authorJanson, M.
dc.contributor.authorCarson, Joseph
dc.contributor.authorGroff, Tyler
dc.contributor.authorKasdin, N. Jeremy
dc.contributor.authorMcElwain, Michael W.
dc.contributor.authorSingh, Garima
dc.contributor.authorUyama, Taichi
dc.contributor.authorKuzuhara, Masayuki
dc.contributor.authorAkiyama, E.
dc.contributor.authorGrady, Carol
dc.contributor.authorHayashi, Saeko
dc.contributor.authorKnapp, G. R.
dc.contributor.authorKwon, J.
dc.contributor.authorOh, Daehyeon
dc.contributor.authorWisniewski, J.
dc.contributor.authorSitko, Michael
dc.contributor.authorYang, Yi
dc.date.accessioned2017-06-23T23:20:51Z
dc.date.available2017-06-23T23:20:51Z
dc.date.issued2017-02-10
dc.identifier.citationSubaru/SCExAO First-light Direct Imaging of a Young Debris Disk around HD 36546 2017, 836 (1):L15 The Astrophysical Journalen
dc.identifier.issn2041-8213
dc.identifier.doi10.3847/2041-8213/836/1/L15
dc.identifier.urihttp://hdl.handle.net/10150/624379
dc.description.abstractWe present H-band scattered light imaging of a bright debris disk around the A0 star HD 36546 obtained from the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system with data recorded by the HiCIAO camera using the vector vortex coronagraph. SCExAO traces the disk from r similar to 0."3 to r similar to 1" (34-114 au). The disk is oriented in a near east-west direction (PA similar to 75 degrees), is inclined by i similar to 70 degrees-75 degrees, and is strongly forward-scattering (g > 0.5). It is an extended disk rather than a sharp ring; a second, diffuse dust population extends from the disk's eastern side. While HD 36546 intrinsic properties are consistent with a wide age range (t similar to 1-250 Myr), its kinematics and analysis of coeval stars suggest a young age (3-10 Myr) and a possible connection to Taurus-Auriga's star formation history. SCExAO's planet-to-star contrast ratios are comparable to the first-light Gemini Planet Imager contrasts; for an age of 10 Myr, we rule out planets with masses comparable to HR 8799 b beyond a projected separation of 23 au. A massive icy planetesimal disk or an unseen super-Jovian planet at r > 20 au may explain the disk's visibility. The HD 36546 debris disk may be the youngest debris disk yet imaged, is the first newly identified object from the now-operational SCExAO extreme AO system, is ideally suited for spectroscopic follow-up with SCExAO/CHARIS in 2017, and may be a key probe of icy planet formation and planet-disk interactions.
dc.language.isoenen
dc.publisherIOP PUBLISHING LTDen
dc.relation.urlhttp://stacks.iop.org/2041-8205/836/i=1/a=L15?key=crossref.3b6999305f34dcd1f2550c11ebf2948den
dc.rights© 2017. The American Astronomical Society. All rights reserved.en
dc.subjectplanetary systemsen
dc.subjectstars: individual (HD 36546)en
dc.subjectstars: solar-typeen
dc.titleSubaru/SCExAO First-light Direct Imaging of a Young Debris Disk around HD 36546en
dc.typeArticleen
dc.contributor.departmentUniv Arizona, Coll Optic Scien
dc.identifier.journalThe Astrophysical Journal Lettersen
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en
dc.eprint.versionFinal published versionen
refterms.dateFOA2018-09-11T20:31:17Z
html.description.abstractWe present H-band scattered light imaging of a bright debris disk around the A0 star HD 36546 obtained from the Subaru Coronagraphic Extreme Adaptive Optics (SCExAO) system with data recorded by the HiCIAO camera using the vector vortex coronagraph. SCExAO traces the disk from r similar to 0."3 to r similar to 1" (34-114 au). The disk is oriented in a near east-west direction (PA similar to 75 degrees), is inclined by i similar to 70 degrees-75 degrees, and is strongly forward-scattering (g > 0.5). It is an extended disk rather than a sharp ring; a second, diffuse dust population extends from the disk's eastern side. While HD 36546 intrinsic properties are consistent with a wide age range (t similar to 1-250 Myr), its kinematics and analysis of coeval stars suggest a young age (3-10 Myr) and a possible connection to Taurus-Auriga's star formation history. SCExAO's planet-to-star contrast ratios are comparable to the first-light Gemini Planet Imager contrasts; for an age of 10 Myr, we rule out planets with masses comparable to HR 8799 b beyond a projected separation of 23 au. A massive icy planetesimal disk or an unseen super-Jovian planet at r > 20 au may explain the disk's visibility. The HD 36546 debris disk may be the youngest debris disk yet imaged, is the first newly identified object from the now-operational SCExAO extreme AO system, is ideally suited for spectroscopic follow-up with SCExAO/CHARIS in 2017, and may be a key probe of icy planet formation and planet-disk interactions.


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