Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28479
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Cheetham, A. | en_US |
dc.contributor.author | Bonnefoy, M. | en_US |
dc.contributor.author | DESIDERA, Silvano | en_US |
dc.contributor.author | Langlois, M. | en_US |
dc.contributor.author | Vigan, A. | en_US |
dc.contributor.author | Schmidt, T. | en_US |
dc.contributor.author | Olofsson, J. | en_US |
dc.contributor.author | Chauvin, G. | en_US |
dc.contributor.author | Klahr, H. | en_US |
dc.contributor.author | GRATTON, Raffaele | en_US |
dc.contributor.author | D'ORAZI, VALENTINA | en_US |
dc.contributor.author | Henning, T. | en_US |
dc.contributor.author | Janson, M. | en_US |
dc.contributor.author | Biller, B. | en_US |
dc.contributor.author | Peretti, S. | en_US |
dc.contributor.author | Hagelberg, J. | en_US |
dc.contributor.author | Ségransan, D. | en_US |
dc.contributor.author | Udry, S. | en_US |
dc.contributor.author | MESA, DINO | en_US |
dc.contributor.author | Sissa, E. | en_US |
dc.contributor.author | Kral, Q. | en_US |
dc.contributor.author | Schlieder, J. | en_US |
dc.contributor.author | Maire, A. -L. | en_US |
dc.contributor.author | Mordasini, C. | en_US |
dc.contributor.author | Menard, F. | en_US |
dc.contributor.author | Zurlo, A. | en_US |
dc.contributor.author | Beuzit, J. -L. | en_US |
dc.contributor.author | Feldt, M. | en_US |
dc.contributor.author | Mouillet, D. | en_US |
dc.contributor.author | Meyer, M. | en_US |
dc.contributor.author | Lagrange, A. -M. | en_US |
dc.contributor.author | Boccaletti, A. | en_US |
dc.contributor.author | Keppler, M. | en_US |
dc.contributor.author | Kopytova, T. | en_US |
dc.contributor.author | LIGI, ROXANNE | en_US |
dc.contributor.author | Rouan, D. | en_US |
dc.contributor.author | Le Coroller, H. | en_US |
dc.contributor.author | Dominik, C. | en_US |
dc.contributor.author | Lagadec, E. | en_US |
dc.contributor.author | TURATTO, Massimo | en_US |
dc.contributor.author | Abe, L. | en_US |
dc.contributor.author | Antichi, J. | en_US |
dc.contributor.author | BARUFFOLO, Andrea | en_US |
dc.contributor.author | Baudoz, P. | en_US |
dc.contributor.author | Blanchard, P. | en_US |
dc.contributor.author | Buey, T. | en_US |
dc.contributor.author | Carbillet, M. | en_US |
dc.contributor.author | Carle, M. | en_US |
dc.contributor.author | CASCONE, Enrico | en_US |
dc.contributor.author | CLAUDI, Riccardo | en_US |
dc.contributor.author | Costille, A. | en_US |
dc.contributor.author | Delboulbé, A. | en_US |
dc.contributor.author | De Caprio, V. | en_US |
dc.contributor.author | Dohlen, K. | en_US |
dc.contributor.author | FANTINEL, Daniela | en_US |
dc.contributor.author | Feautrier, P. | en_US |
dc.contributor.author | Fusco, T. | en_US |
dc.contributor.author | GIRO, Enrico | en_US |
dc.contributor.author | Gluck, L. | en_US |
dc.contributor.author | Hubin, N. | en_US |
dc.contributor.author | Hugot, E. | en_US |
dc.contributor.author | Jaquet, M. | en_US |
dc.contributor.author | Kasper, M. | en_US |
dc.contributor.author | Llored, M. | en_US |
dc.contributor.author | Madec, F. | en_US |
dc.contributor.author | Magnard, Y. | en_US |
dc.contributor.author | Martinez, P. | en_US |
dc.contributor.author | Maurel, D. | en_US |
dc.contributor.author | Le Mignant, D. | en_US |
dc.contributor.author | Möller-Nilsson, O. | en_US |
dc.contributor.author | Moulin, T. | en_US |
dc.contributor.author | Origné, A. | en_US |
dc.contributor.author | Pavlov, A. | en_US |
dc.contributor.author | Perret, D. | en_US |
dc.contributor.author | Petit, C. | en_US |
dc.contributor.author | Pragt, J. | en_US |
dc.contributor.author | Puget, P. | en_US |
dc.contributor.author | Rabou, P. | en_US |
dc.contributor.author | Ramos, J. | en_US |
dc.contributor.author | Rigal, F. | en_US |
dc.contributor.author | Rochat, S. | en_US |
dc.contributor.author | Roelfsema, R. | en_US |
dc.contributor.author | Rousset, G. | en_US |
dc.contributor.author | Roux, A. | en_US |
dc.contributor.author | SALASNICH, Bernardo | en_US |
dc.contributor.author | Sauvage, J. -F. | en_US |
dc.contributor.author | Sevin, A. | en_US |
dc.contributor.author | Soenke, C. | en_US |
dc.contributor.author | Stadler, E. | en_US |
dc.contributor.author | Suarez, M. | en_US |
dc.contributor.author | Weber, L. | en_US |
dc.contributor.author | Wildi, F. | en_US |
dc.date.accessioned | 2020-11-20T12:28:10Z | - |
dc.date.available | 2020-11-20T12:28:10Z | - |
dc.date.issued | 2018 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28479 | - |
dc.description.abstract | We report the discovery of a bright, brown dwarf companion to the star HIP 64892, imaged with VLT/SPHERE during the SHINE exoplanet survey. The host is a B9.5V member of the Lower-Centaurus-Crux subgroup of the Scorpius Centaurus OB association. The measured angular separation of the companion (1.2705 ± 0.0023") corresponds to a projected distance of 159 ± 12 AU. We observed the target with the dual-band imaging and long-slit spectroscopy modes of the IRDIS imager to obtain its spectral energy distribution (SED) and astrometry. In addition, we reprocessed archival NACO L-band data, from which we also recover the companion. Its SED is consistent with a young (<30 Myr), low surface gravity object with a spectral type of M9<SUB>γ</SUB> ± 1. From comparison with the BT-Settl atmospheric models we estimate an effective temperature of T<SUB>eff</SUB> = 2600 ± 100 K, and comparison of the companion photometry to the COND evolutionary models yields a mass of 29-37 M<SUB>J</SUB> at the estimated age of 16<SUB>-7</SUB><SUP>+15</SUP> Myr for the system. The star HIP 64892 is a rare example of an extreme-mass ratio system (q 0.01) and will be useful for testing models relating to the formation and evolution of such low-mass objects. Based on observations collected at the European Organisation for Astronomical Research in the Southern Hemisphere under ESO programmes 096.C-0241 and 198.C-0209 (PI: J.-L. Beuzit), 098.A-9007(A) (PI: P. Sarkis), and 087.C-0790(A) (PI: M. Ireland). | en_US |
dc.language.iso | eng | en_US |
dc.title | Discovery of a brown dwarf companion to the star HIP 64892 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201832650 | en_US |
dc.identifier.scopus | 2-s2.0-85055139238 | en_US |
dc.identifier.isi | 000440420500001 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/abs/2018/07/aa32650-18/aa32650-18.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 615 | en_US |
dc.relation.firstpage | A160 | en_US |
dc.relation.numberofpages | 10 | en_US |
dc.type.referee | REF_1 | en_US |
dc.description.numberofauthors | 92 | en_US |
dc.description.international | sì | en_US |
dc.relation.scientificsector | FIS/05 - ASTRONOMIA E ASTROFISICA | en_US |
dc.relation.journal | ASTRONOMY & ASTROPHYSICS | en_US |
dc.type.miur | 262 Articolo in rivista | - |
dc.identifier.adsbibcode | 2018A&A...615A.160C | en_US |
dc.relation.ercsector | ERC sectors::Physical Sciences and Engineering::PE9 Universe sciences: astro-physics/chemistry/biology; solar systems; stellar, galactic and extragalactic astronomy, planetary systems, cosmology, space science, instrumentation | en_US |
dc.description.apc | no | 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. Padova | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Capodimonte | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Trieste | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.orcid | 0000-0001-8613-2589 | - |
crisitem.author.orcid | 0000-0003-2195-6805 | - |
crisitem.author.orcid | 0000-0002-2662-3762 | - |
crisitem.author.orcid | 0000-0001-8467-1933 | - |
crisitem.author.orcid | 0000-0002-6257-6051 | - |
crisitem.author.orcid | 0000-0002-9719-3157 | - |
crisitem.author.orcid | 0000-0002-1114-4355 | - |
crisitem.author.orcid | 0000-0002-7425-7517 | - |
crisitem.author.orcid | 0000-0001-7707-5105 | - |
crisitem.author.orcid | 0000-0001-8152-9480 | - |
crisitem.author.orcid | 0000-0001-7301-8285 | - |
crisitem.author.orcid | 0000-0002-7502-2701 | - |
crisitem.journal.journalissn | 0004-6361 | - |
crisitem.journal.ance | E016240 | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
Cheetham_2018_A&A_615_A160.pdf | Pdf editoriale | 1.4 MB | Adobe PDF | View/Open |
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