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dc.contributor.authorJ. M. Stone
dc.contributor.authorErtel, S
dc.contributor.authorDefrere, D
dc.contributor.authorHinz, P
dc.contributor.authorMennesson, B
dc.contributor.authorKennedy, GM
dc.contributor.authorDanchi, WC
dc.contributor.authorGelino, C
dc.contributor.authorHill, JM
dc.contributor.authorHoffmann, WF
dc.contributor.authorMazoyer, J
dc.contributor.authorRieke, G
dc.contributor.authorShannon, A
dc.contributor.authorStapelfeldt, K
dc.contributor.authorSpalding, E
dc.contributor.authorStone, JM
dc.contributor.authorVaz, A
dc.contributor.authorWeinberger, AJ
dc.contributor.authorWillems, P
dc.contributor.authorAbsil, O
dc.contributor.authorArbo, P
dc.contributor.authorBailey, VP
dc.contributor.authorBeichman, C
dc.contributor.authorBryden, G
dc.contributor.authorDowney, EC
dc.contributor.authorDurney, O
dc.contributor.authorEsposito, S
dc.contributor.authorGaspar, A
dc.contributor.authorGrenz, P
dc.contributor.authorHaniff, CA
dc.contributor.authorLeisenring, JM
dc.contributor.authorMarion, L
dc.contributor.authorMcMahon, TJ
dc.contributor.authorMillan-Gabet, R
dc.contributor.authorMontoya, M
dc.contributor.authorMorzinski, KM
dc.contributor.authorPerera, S
dc.contributor.authorPinna, E
dc.contributor.authorPott, JU
dc.contributor.authorPower, J
dc.contributor.authorPuglisi, A
dc.contributor.authorRoberge, A
dc.contributor.authorSerabyn, E
dc.contributor.authorSkemer, AJ
dc.contributor.authorSu, KYL
dc.contributor.authorVaitheeswaran, V
dc.contributor.authorWyatt, MC
dc.date.accessioned2020-03-30T13:22:51Z
dc.date.available2020-03-30T13:22:51Z
dc.date.issued2020
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.titleThe HOSTS Survey for Exozodiacal Dust: Observational Results from the Complete Survey
dc.typeArticle
prism.issueIdentifier4
prism.publicationDate2020
prism.publicationNameAstronomical Journal
prism.volume159
dc.identifier.doi10.17863/CAM.50972
rioxxterms.versionofrecord10.3847/1538-3881/ab7817
rioxxterms.versionAM
rioxxterms.licenseref.urihttp://www.rioxx.net/licenses/all-rights-reserved
rioxxterms.licenseref.startdate2020-04-01
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.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, MC [0000-0001-9064-5598]
dc.identifier.eissn1538-3881
rioxxterms.typeJournal Article/Review
pubs.funder-project-idScience and Technology Facilities Council (ST/S000623/1)
pubs.funder-project-idScience and Technology Facilities Council (ST/N000927/1)
cam.issuedOnline2020-03-31
cam.orpheus.successMon Apr 27 07:59:11 BST 2020 - Embargo updated
cam.orpheus.counter3
rioxxterms.freetoread.startdate2020-04-30


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