Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/28749
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Esposito, M. | en_US |
dc.contributor.author | Armstrong, D. J. | en_US |
dc.contributor.author | Gandolfi, D. | en_US |
dc.contributor.author | Adibekyan, V. | en_US |
dc.contributor.author | Fridlund, M. | en_US |
dc.contributor.author | Santos, N. C. | en_US |
dc.contributor.author | Livingston, J. H. | en_US |
dc.contributor.author | Delgado Mena, E. | en_US |
dc.contributor.author | Fossati, L. | en_US |
dc.contributor.author | Lillo-Box, J. | en_US |
dc.contributor.author | Barragán, O. | en_US |
dc.contributor.author | Barrado, D. | en_US |
dc.contributor.author | Cubillos, P. E. | en_US |
dc.contributor.author | Cooke, B. | en_US |
dc.contributor.author | Justesen, A. B. | en_US |
dc.contributor.author | Meru, F. | en_US |
dc.contributor.author | Díaz, R. F. | en_US |
dc.contributor.author | Dai, F. | en_US |
dc.contributor.author | Nielsen, L. D. | en_US |
dc.contributor.author | Persson, C. M. | en_US |
dc.contributor.author | Wheatley, P. J. | en_US |
dc.contributor.author | Hatzes, A. P. | en_US |
dc.contributor.author | Van Eylen, V. | en_US |
dc.contributor.author | Musso, M. M. | en_US |
dc.contributor.author | Alonso, R. | en_US |
dc.contributor.author | Beck, P. | en_US |
dc.contributor.author | Barros, S. C. C. | en_US |
dc.contributor.author | Bayliss, D. | en_US |
dc.contributor.author | Bonomo, Aldo | en_US |
dc.contributor.author | Bouchy, F. | en_US |
dc.contributor.author | Brown, D. J. A. | en_US |
dc.contributor.author | Bryant, E. | en_US |
dc.contributor.author | Cabrera, J. | en_US |
dc.contributor.author | Cochran, W. D. | en_US |
dc.contributor.author | Csizmadia, S. | en_US |
dc.contributor.author | Deeg, H. | en_US |
dc.contributor.author | Demangeon, O. | en_US |
dc.contributor.author | Deleuil, M. | en_US |
dc.contributor.author | Dumusque, X. | en_US |
dc.contributor.author | Eigmüller, P. | en_US |
dc.contributor.author | Endl, M. | en_US |
dc.contributor.author | Erikson, A. | en_US |
dc.contributor.author | Faedi, F. | en_US |
dc.contributor.author | Figueira, P. | en_US |
dc.contributor.author | Fukui, A. | en_US |
dc.contributor.author | Grziwa, S. | en_US |
dc.contributor.author | Guenther, E. W. | en_US |
dc.contributor.author | Hidalgo, D. | en_US |
dc.contributor.author | Hjorth, M. | en_US |
dc.contributor.author | Hirano, T. | en_US |
dc.contributor.author | Hojjatpanah, S. | en_US |
dc.contributor.author | Knudstrup, E. | en_US |
dc.contributor.author | Korth, J. | en_US |
dc.contributor.author | Lam, K. W. F. | en_US |
dc.contributor.author | de Leon, J. | en_US |
dc.contributor.author | Lund, M. N. | en_US |
dc.contributor.author | Luque, R. | en_US |
dc.contributor.author | Mathur, S. | en_US |
dc.contributor.author | Montañés Rodríguez, P. | en_US |
dc.contributor.author | Narita, N. | en_US |
dc.contributor.author | Nespral, D. | en_US |
dc.contributor.author | Niraula, P. | en_US |
dc.contributor.author | Nowak, G. | en_US |
dc.contributor.author | Osborn, H. P. | en_US |
dc.contributor.author | Pallé, E. | en_US |
dc.contributor.author | Pätzold, M. | en_US |
dc.contributor.author | Pollacco, D. | en_US |
dc.contributor.author | Prieto-Arranz, J. | en_US |
dc.contributor.author | Rauer, H. | en_US |
dc.contributor.author | Redfield, S. | en_US |
dc.contributor.author | Ribas, I. | en_US |
dc.contributor.author | Sousa, S. G. | en_US |
dc.contributor.author | Smith, A. M. S. | en_US |
dc.contributor.author | Tala-Pinto, M. | en_US |
dc.contributor.author | Udry, S. | en_US |
dc.contributor.author | Winn, J. N. | en_US |
dc.date.accessioned | 2020-12-09T14:52:54Z | - |
dc.date.available | 2020-12-09T14:52:54Z | - |
dc.date.issued | 2019 | en_US |
dc.identifier.issn | 0004-6361 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/28749 | - |
dc.description.abstract | We report on the confirmation and mass determination of a transiting planet orbiting the old and inactive G7 dwarf star HD219666 (Mstar = 0.92 +/- 0.03 MSun, Rstar = 1.03 +/- 0.03 RSun, tau_star = 10 +/- 2 Gyr). With a mass of Mb = 16.6 +/- 1.3 MEarth, a radius of Rb = 4.71 +/- 0.17 REarth, and an orbital period of P ~ 6 days, HD219666b is a new member of a rare class of exoplanets: the hot-Neptunes. The Transiting Exoplanet Survey Satellite (TESS) observed HD219666 (also known as TOI-118) in its Sector 1 and the light curve shows four transit-like events, equally spaced in time. We confirmed the planetary nature of the candidate by gathering precise radial-velocity measurements with HARPS@ESO3.6m. We used the co-added HARPS spectrum to derive the host star fundamental parameters (Teff = 5527 +/- 65 K, log g = 4.40 +/- 0.11 (cgs), [Fe/H]= 0.04 +/- 0.04 dex, log R'HK = -5.07 +/- 0.03), as well as the abundances of many volatile and refractory elements. The host star brightness (V = 9.9) makes it suitable for further characterisation by means of in-transit spectroscopy. The determination of the planet orbital obliquity, along with the atmospheric metal-to-hydrogen content and thermal structure could provide us with important clues on the formation mechanisms of this class of objects. | en_US |
dc.language.iso | eng | en_US |
dc.title | HD219666b: A hot-Neptune from TESS Sector 1 | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.1051/0004-6361/201834853 | en_US |
dc.identifier.scopus | 2-s2.0-85063896936 | en_US |
dc.identifier.isi | 000462696600001 | en_US |
dc.identifier.url | https://www.aanda.org/articles/aa/full_html/2019/03/aa34853-18/aa34853-18.html | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 623 | en_US |
dc.relation.firstpage | A165 | en_US |
dc.type.referee | REF_1 | 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.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::PE9_6 Stars and stellar systems | 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. Torino | - |
crisitem.author.orcid | 0000-0002-6177-198X | - |
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 | |
---|---|---|---|---|
Espositoetal_2019.pdf | PDF editoriale | 1.72 MB | Adobe PDF | View/Open |
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