Show simple item record

dc.contributor.authorWahhaj, Zen
dc.contributor.authorMilli, Jen
dc.contributor.authorKennedy, Granten
dc.contributor.authorErtel, Sen
dc.contributor.authorMatrà, Lucaen
dc.contributor.authorBoccaletti, Aen
dc.contributor.authorDel Burgo, Cen
dc.contributor.authorWyatt, Marken
dc.contributor.authorPinte, Cen
dc.contributor.authorLagrange, AMen
dc.contributor.authorAbsil, Oen
dc.contributor.authorChoquet, Een
dc.contributor.authorGómez González, CAen
dc.contributor.authorKobayashi, Hen
dc.contributor.authorMawet, Den
dc.contributor.authorMouillet, Den
dc.contributor.authorPueyo, Len
dc.contributor.authorDent, WRFen
dc.contributor.authorAugereau, JCen
dc.contributor.authorGirard, Jen
dc.date.accessioned2017-04-24T14:00:49Z
dc.date.available2017-04-24T14:00:49Z
dc.date.issued2016-12en
dc.identifier.issn0004-6361
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/263773
dc.description.abstractWe present the first resolved image of the debris disk around the 16 ± 8 Myr old star, HD 114082. The observation was made in the H-band using the SPHERE instrument. The star is at a distance of 92 ± 6 pc in the Lower Centaurus Crux association. Using a Markov chain Monte Carlo analysis, we determined that the debris is likely in the form of a dust ring with an inner edge of 27.7+2.8-3.5 au, position angle -74.3°+0.5-1.5, and an inclination with respect to the line of sight of 6.7°+3.8-0.4. The disk imaged in scattered light has a surface density that is declining with radius of ~r-4, which is steeper than expected for grain blowout by radiation pressure. We find only marginal evidence (2σ) of eccentricity and rule out planets more massive than 1.0 MJup orbiting within 1 au of the inner edge of the ring, since such a planet would have disrupted the disk. The disk has roughly the same fractional disk luminosity (Ldisk/L∗ = 3.3 × 10-3) as HR 4796 A and β Pictoris, however it was not detected by previous instrument facilities most likely because of its small angular size (radius ~0.4′′), low albedo (~0.2), and low scattering efficiency far from the star due to high scattering anisotropy. With the arrival of extreme adaptive optics systems, such as SPHERE and GPI, the morphology of smaller, fainter, and more distant debris disks are being revealed, providing clues to planet-disk interactions in young protoplanetary systems.
dc.description.sponsorshipO.A. is F.R.S.-FNRS Research Associate. O.A. and C.G.G. acknowledge support by the European Union through ERC grant number 337569. G.M.K. is supported by the Royal Society as a Royal Society University Research Fellow. C.B. has been supported by Mexican CONACyT research grant CB-2012-183007. E.C. acknowledges support for this work from NASA through Hubble Fellowship grant HST-HF2-51355 awarded by STScI, which is operated by the AURA, Inc., for NASA under contract NAS5-26555.
dc.language.isoenen
dc.publisherEDP Sciences
dc.titleThe SHARDDS survey: First resolved image of the HD 114082 debris disk in the Lower Centaurus Crux with SPHEREen
dc.typeArticle
prism.numberL4en
prism.publicationDate2016en
prism.publicationNameAstronomy and Astrophysicsen
prism.volume596en
dc.identifier.doi10.17863/CAM.9145
dcterms.dateAccepted2016-11-07en
rioxxterms.versionofrecord10.1051/0004-6361/201629769en
rioxxterms.versionVoRen
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2016-12en
dc.contributor.orcidKennedy, Grant [0000-0001-6831-7547]
dc.contributor.orcidMatrà, Luca [0000-0003-4705-3188]
dc.contributor.orcidWyatt, Mark [0000-0001-9064-5598]
dc.identifier.eissn1432-0746
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idRoyal Society (UF140298)
pubs.funder-project-idEuropean Research Council (279973)
pubs.funder-project-idSTFC (1369677)
cam.issuedOnline2016-11-30en
cam.orpheus.successThu Jan 30 12:53:57 GMT 2020 - The item has an open VoR version.*
rioxxterms.freetoread.startdate2100-01-01


Files in this item

Thumbnail
Thumbnail

This item appears in the following Collection(s)

Show simple item record