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dc.contributor.authorJ. M. Stone,en
dc.contributor.authorErtel, Sen
dc.contributor.authorDefrere, Den
dc.contributor.authorHinz, Pen
dc.contributor.authorMennesson, Ben
dc.contributor.authorKennedy, GMen
dc.contributor.authorDanchi, WCen
dc.contributor.authorGelino, Cen
dc.contributor.authorHill, JMen
dc.contributor.authorHoffmann, WFen
dc.contributor.authorMazoyer, Jen
dc.contributor.authorRieke, Gen
dc.contributor.authorShannon, Aen
dc.contributor.authorStapelfeldt, Ken
dc.contributor.authorSpalding, Een
dc.contributor.authorStone, JMen
dc.contributor.authorVaz, Aen
dc.contributor.authorWeinberger, AJen
dc.contributor.authorWillems, Pen
dc.contributor.authorAbsil, Oen
dc.contributor.authorArbo, Pen
dc.contributor.authorBailey, VPen
dc.contributor.authorBeichman, Cen
dc.contributor.authorBryden, Gen
dc.contributor.authorDowney, ECen
dc.contributor.authorDurney, Oen
dc.contributor.authorEsposito, Sen
dc.contributor.authorGaspar, Aen
dc.contributor.authorGrenz, Pen
dc.contributor.authorHaniff, Christopheren
dc.contributor.authorLeisenring, JMen
dc.contributor.authorMarion, Len
dc.contributor.authorMcMahon, TJen
dc.contributor.authorMillan-Gabet, Ren
dc.contributor.authorMontoya, Men
dc.contributor.authorMorzinski, KMen
dc.contributor.authorPerera, Sen
dc.contributor.authorPinna, Een
dc.contributor.authorPott, JUen
dc.contributor.authorPower, Jen
dc.contributor.authorPuglisi, Aen
dc.contributor.authorRoberge, Aen
dc.contributor.authorSerabyn, Een
dc.contributor.authorSkemer, AJen
dc.contributor.authorSu, KYLen
dc.contributor.authorVaitheeswaran, Ven
dc.contributor.authorWyatt, Marken
dc.date.accessioned2020-03-30T13:22:51Z
dc.date.available2020-03-30T13:22:51Z
dc.date.issued2020-04-01en
dc.identifier.issn0004-6256
dc.identifier.urihttps://www.repository.cam.ac.uk/handle/1810/303891
dc.description.abstractThe Large Binocular Telescope Interferometer (LBTI) enables nulling interferometric observations across the N band (8 to 13 um) to suppress a star's bright light and probe for faint circumstellar emission. We present and statistically analyze the results from the LBTI/HOSTS (Hunt for Observable Signatures of Terrestrial Systems) survey for exozodiacal dust. By comparing our measurements to model predictions based on the Solar zodiacal dust in the N band, we estimate a 1 sigma median sensitivity of 23 zodis for early type stars and 48 zodis for Sun-like stars, where 1 zodi is the surface density of habitable zone (HZ) dust in the Solar system. Of the 38 stars observed, 10 show significant excess. A clear correlation of our detections with the presence of cold dust in the systems was found, but none with the stellar spectral type or age. The majority of Sun-like stars have relatively low HZ dust levels (best-fit median: 3 zodis, 1 sigma upper limit: 9 zodis, 95% confidence: 27 zodis based on our N band measurements), while ~20% are significantly more dusty. The Solar system's HZ dust content is consistent with being typical. Our median HZ dust level would not be a major limitation to the direct imaging search for Earth-like exoplanets, but more precise constraints are still required, in particular to evaluate the impact of exozodiacal dust for the spectroscopic characterization of imaged exo-Earth candidates.
dc.publisherInstitute of Physics Publishing
dc.rightsAll rights reserved
dc.rights.uri
dc.titleThe HOSTS Survey for Exozodiacal Dust: Observational Results from the Complete Surveyen
dc.typeArticle
prism.issueIdentifier4en
prism.publicationDate2020en
prism.publicationNameAstronomical Journalen
prism.volume159en
dc.identifier.doi10.17863/CAM.50972
rioxxterms.versionofrecord10.3847/1538-3881/ab7817en
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserveden
rioxxterms.licenseref.startdate2020-04-01en
dc.contributor.orcidJ. M. Stone, [0000-0003-0454-3718]
dc.contributor.orcidErtel, S [0000-0002-2314-7289]
dc.contributor.orcidMennesson, B [0000-0003-4205-4800]
dc.contributor.orcidMazoyer, J [0000-0002-9133-3091]
dc.contributor.orcidRieke, G [0000-0003-2303-6519]
dc.contributor.orcidShannon, A [0000-0002-0711-4516]
dc.contributor.orcidStapelfeldt, K [0000-0002-2805-7338]
dc.contributor.orcidWeinberger, AJ [0000-0001-6654-7859]
dc.contributor.orcidAbsil, O [0000-0002-4006-6237]
dc.contributor.orcidBailey, VP [0000-0002-5407-2806]
dc.contributor.orcidGaspar, A [0000-0001-8612-3236]
dc.contributor.orcidHaniff, Christopher [0000-0001-8726-5797]
dc.contributor.orcidLeisenring, JM [0000-0002-0834-6140]
dc.contributor.orcidMillan-Gabet, R [0000-0003-0447-5866]
dc.contributor.orcidMorzinski, KM [0000-0002-1384-0063]
dc.contributor.orcidPott, JU [0000-0003-4291-2078]
dc.contributor.orcidRoberge, A [0000-0002-2989-3725]
dc.contributor.orcidSkemer, AJ [0000-0001-6098-3924]
dc.contributor.orcidSu, KYL [0000-0002-3532-5580]
dc.contributor.orcidWyatt, Mark [0000-0001-9064-5598]
dc.identifier.eissn1538-3881
rioxxterms.typeJournal Article/Reviewen
pubs.funder-project-idSTFC (ST/S000623/1)
pubs.funder-project-idSCIENCE & TECHNOLOGY FACILITIES COUNCIL (ST/N000927/1)
cam.orpheus.successMon Apr 27 07:59:11 BST 2020 - Embargo updated*
cam.orpheus.counter3*
rioxxterms.freetoread.startdate2020-04-30


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