Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/30203
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Ertel, S. | en_US |
dc.contributor.author | Defrère, D. | en_US |
dc.contributor.author | Hinz, P. | en_US |
dc.contributor.author | Mennesson, B. | en_US |
dc.contributor.author | Kennedy, G. M. | en_US |
dc.contributor.author | Danchi, W. C. | en_US |
dc.contributor.author | Gelino, C. | en_US |
dc.contributor.author | Hill, J. M. | en_US |
dc.contributor.author | Hoffmann, W. F. | en_US |
dc.contributor.author | Rieke, G. | en_US |
dc.contributor.author | Shannon, A. | en_US |
dc.contributor.author | Spalding, E. | en_US |
dc.contributor.author | Stone, J. M. | en_US |
dc.contributor.author | Vaz, A. | en_US |
dc.contributor.author | Weinberger, A. J. | en_US |
dc.contributor.author | Willems, P. | en_US |
dc.contributor.author | Absil, O. | en_US |
dc.contributor.author | Arbo, P. | en_US |
dc.contributor.author | Bailey, V. P. | en_US |
dc.contributor.author | Beichman, C. | en_US |
dc.contributor.author | Bryden, G. | en_US |
dc.contributor.author | Downey, E. C. | en_US |
dc.contributor.author | Durney, O. | en_US |
dc.contributor.author | ESPOSITO, Simone | en_US |
dc.contributor.author | Gaspar, A. | en_US |
dc.contributor.author | Grenz, P. | en_US |
dc.contributor.author | Haniff, C. A. | en_US |
dc.contributor.author | Leisenring, J. M. | en_US |
dc.contributor.author | Marion, L. | en_US |
dc.contributor.author | McMahon, T. J. | en_US |
dc.contributor.author | Millan-Gabet, R. | en_US |
dc.contributor.author | Montoya, M. | en_US |
dc.contributor.author | Morzinski, K. M. | en_US |
dc.contributor.author | PINNA, Enrico | en_US |
dc.contributor.author | Power, J. | en_US |
dc.contributor.author | PUGLISI, Alfio Timothy | en_US |
dc.contributor.author | Roberge, A. | en_US |
dc.contributor.author | Serabyn, E. | en_US |
dc.contributor.author | Skemer, A. J. | en_US |
dc.contributor.author | Stapelfeldt, K. | en_US |
dc.contributor.author | Su, K. Y. L. | en_US |
dc.contributor.author | Vaitheeswaran, V. | en_US |
dc.contributor.author | Wyatt, M. C. | en_US |
dc.date.accessioned | 2021-02-03T11:49:25Z | - |
dc.date.available | 2021-02-03T11:49:25Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0004-6256 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/30203 | - |
dc.description.abstract | The Hunt for Observable Signatures of Terrestrial Systems survey searches for dust near the habitable zones (HZs) around nearby, bright main-sequence stars. We use nulling interferometry in the N band to suppress the bright stellar light and to probe for low levels of HZ dust around the 30 stars observed so far. Our overall detection rate is 18%, including four new detections, among which are the first three around Sun-like stars and the first two around stars without any previously known circumstellar dust. The inferred occurrence rates are comparable for early-type and Sun-like stars, but decrease from {60}<SUB>-21</SUB><SUP>+16</SUP>% for stars with previously detected cold dust to {8}<SUB>-3</SUB><SUP>+10</SUP>% for stars without such excess, confirming earlier results at higher sensitivity. For completed observations on individual stars, our sensitivity is five to ten times better than previous results. Assuming a lognormal excess luminosity function, we put upper limits on the median HZ dust level of 13 zodis (95% confidence) for a sample of stars without cold dust and of 26 zodis when focusing on Sun-like stars without cold dust. However, our data suggest that a more complex luminosity function may be more appropriate. For stars without detectable Large Binocular Telescope Interferometer (LBTI) excess, our upper limits are almost reduced by a factor of two, demonstrating the strength of LBTI target vetting for future exo-Earth imaging missions. Our statistics are limited so far, and extending the survey is critical to informing the design of future exo-Earth imaging surveys. | en_US |
dc.language.iso | eng | en_US |
dc.title | The HOSTS Survey—Exozodiacal Dust Measurements for 30 Stars | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-3881/aab717 | en_US |
dc.identifier.scopus | 2-s2.0-85047305423 | en_US |
dc.identifier.isi | 000439356900002 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-3881/aab717 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 155 | en_US |
dc.relation.issue | 5 | en_US |
dc.relation.firstpage | 194 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | THE ASTRONOMICAL JOURNAL | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018AJ....155..194E | en_US |
dc.description.apc | sì | en_US |
dc.description.oa | 1 – prodotto con file in versione Open Access (allegare il file al passo 5-Carica) | en_US |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.openairetype | Article | - |
item.languageiso639-1 | en | - |
item.cerifentitytype | Publications | - |
item.grantfulltext | open | - |
item.fulltext | With Fulltext | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.dept | O.A. Arcetri | - |
crisitem.author.orcid | 0000-0002-3114-677X | - |
crisitem.author.orcid | 0000-0002-6243-5697 | - |
crisitem.author.orcid | 0000-0001-9553-8804 | - |
crisitem.journal.journalissn | 0004-6256 | - |
crisitem.journal.ance | E016224 | - |
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