Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/32031
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Cloutier, Ryan | en_US |
dc.contributor.author | Charbonneau, David | en_US |
dc.contributor.author | Stassun, Keivan G. | en_US |
dc.contributor.author | Murgas, Felipe | en_US |
dc.contributor.author | Mortier, Annelies | en_US |
dc.contributor.author | Massey, Robert | en_US |
dc.contributor.author | Lissauer, Jack J. | en_US |
dc.contributor.author | Latham, David W. | en_US |
dc.contributor.author | Irwin, Jonathan | en_US |
dc.contributor.author | Haywood, Raphaëlle D. | en_US |
dc.contributor.author | Guerra, Pere | en_US |
dc.contributor.author | Girardin, Eric | en_US |
dc.contributor.author | Giacalone, Steven A. | en_US |
dc.contributor.author | Bosch-Cabot, Pau | en_US |
dc.contributor.author | Bieryla, Allyson | en_US |
dc.contributor.author | Winn, Joshua | en_US |
dc.contributor.author | Watson, Christopher A. | en_US |
dc.contributor.author | Vanderspek, Roland | en_US |
dc.contributor.author | Udry, Stéphane | en_US |
dc.contributor.author | Tamura, Motohide | en_US |
dc.contributor.author | SOZZETTI, Alessandro | en_US |
dc.contributor.author | Shporer, Avi | en_US |
dc.contributor.author | Ségransan, Damien | en_US |
dc.contributor.author | Seager, Sara | en_US |
dc.contributor.author | Savel, Arjun B. | en_US |
dc.contributor.author | Sasselov, Dimitar | en_US |
dc.contributor.author | Rose, Mark | en_US |
dc.contributor.author | Ricker, George | en_US |
dc.contributor.author | Rice, Ken | en_US |
dc.contributor.author | Quintana, Elisa V. | en_US |
dc.contributor.author | Quinn, Samuel N. | en_US |
dc.contributor.author | PIOTTO , GIAMPAOLO | en_US |
dc.contributor.author | Phillips, David | en_US |
dc.contributor.author | Pepe, Francesco | en_US |
dc.contributor.author | Pedani, Marco | en_US |
dc.contributor.author | Parviainen, Hannu | en_US |
dc.contributor.author | Palle, Enric | en_US |
dc.contributor.author | Narita, Norio | en_US |
dc.contributor.author | MOLINARI, Emilio Carlo | en_US |
dc.contributor.author | MICELA, Giuseppina | en_US |
dc.contributor.author | McDermott, Scott | en_US |
dc.contributor.author | Mayor, Michel | en_US |
dc.contributor.author | Matson, Rachel A. | en_US |
dc.contributor.author | Martinez Fiorenzano, Aldo F. | en_US |
dc.contributor.author | Lovis, Christophe | en_US |
dc.contributor.author | López-Morales, Mercedes | en_US |
dc.contributor.author | Kusakabe, Nobuhiko | en_US |
dc.contributor.author | Jensen, Eric L. N. | en_US |
dc.contributor.author | Jenkins, Jon M. | en_US |
dc.contributor.author | Huang, Chelsea X. | en_US |
dc.contributor.author | Howell, Steve B. | en_US |
dc.contributor.author | HARUTYUNYAN, AVET | en_US |
dc.contributor.author | Fűrész, Gábor | en_US |
dc.contributor.author | Fukui, Akihiko | en_US |
dc.contributor.author | Esquerdo, Gilbert A. | en_US |
dc.contributor.author | Esparza-Borges, Emma | en_US |
dc.contributor.author | Dumusque, Xavier | en_US |
dc.contributor.author | Dressing, Courtney D. | en_US |
dc.contributor.author | Fabrizio, Luca Di | en_US |
dc.contributor.author | Collins, Karen A. | en_US |
dc.contributor.author | Cameron, Andrew Collier | en_US |
dc.contributor.author | Christiansen, Jessie L. | en_US |
dc.contributor.author | Cecconi, Massimo | en_US |
dc.contributor.author | Buchhave, Lars A. | en_US |
dc.contributor.author | Boschin, Walter | en_US |
dc.contributor.author | ANDREUZZI, Gloria | en_US |
dc.date.accessioned | 2022-03-29T12:45:31Z | - |
dc.date.available | 2022-03-29T12:45:31Z | - |
dc.date.issued | 2021 | en_US |
dc.identifier.issn | 0004-6256 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/32031 | - |
dc.description.abstract | Studies of close-in planets orbiting M dwarfs have suggested that the M-dwarf radius valley may be well explained by distinct formation timescales between enveloped terrestrials and rocky planets that form at late times in a gas-depleted environment. This scenario is at odds with the picture that close-in rocky planets form with a primordial gaseous envelope that is subsequently stripped away by some thermally driven mass-loss process. These two physical scenarios make unique predictions of the rocky/enveloped transition's dependence on orbital separation such that studying the compositions of planets within the M-dwarf radius valley may be able to establish the dominant physics. Here, we present the discovery of one such keystone planet: the ultra-short-period planet TOI-1634 b (P = 0.989 days, $F=121{F}_{\oplus }$, ${r}_{p}={1.790}_{-0.081}^{+0.080}$ R<SUB>⊕</SUB>) orbiting a nearby M2 dwarf (K<SUB>s</SUB> = 8.7, R<SUB>s</SUB> = 0.450 R<SUB>⊙</SUB>, M<SUB>s</SUB> = 0.502 M<SUB>⊙</SUB>) and whose size and orbital period sit within the M-dwarf radius valley. We confirm the TESS-discovered planet candidate using extensive ground-based follow-up campaigns, including a set of 32 precise radial velocity measurements from HARPS-N. We measure a planetary mass of ${4.91}_{-0.70}^{+0.68}$ M<SUB>⊕</SUB>, which makes TOI-1634 b inconsistent with an Earth-like composition at $5.9\sigma $ and thus requires either an extended gaseous envelope, a large volatile-rich layer, or a rocky composition that is not dominated by iron and silicates to explain its mass and radius. The discovery that the bulk composition of TOI-1634 b is inconsistent with that of Earth supports the gas-depleted formation mechanism to explain the emergence of the radius valley around M dwarfs with ${M}_{s}\lesssim 0.5$ M<SUB>⊙</SUB>. | en_US |
dc.language.iso | eng | en_US |
dc.title | TOI-1634 b: An Ultra-short-period Keystone Planet Sitting inside the M-dwarf Radius Valley | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-3881/ac0157 | en_US |
dc.identifier.scopus | 2-s2.0-85113303932 | en_US |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85113303932 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-3881/ac0157 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 162 | en_US |
dc.relation.issue | 2 | en_US |
dc.relation.firstpage | 79 | 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 | 2021AJ....162...79C | 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. Torino | - |
crisitem.author.dept | O.A. Padova | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Palermo | - |
crisitem.author.dept | Direzione Scientifica | - |
crisitem.author.dept | Direzione Scientifica | - |
crisitem.author.dept | Direzione Scientifica | - |
crisitem.author.dept | O.A. Roma | - |
crisitem.author.orcid | 0000-0002-7504-365X | - |
crisitem.author.orcid | 0000-0002-1742-7735 | - |
crisitem.author.orcid | 0000-0002-9900-4751 | - |
crisitem.author.orcid | 0000-0001-9978-9109 | - |
crisitem.author.orcid | 0000-0001-5125-6397 | - |
crisitem.journal.journalissn | 0004-6256 | - |
crisitem.journal.ance | E016224 | - |
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2103.12790.pdf | preprint | 4.65 MB | Adobe PDF | Visualizza/apri |
Cloutieretal.2021.pdf | [Administrators only] | 2.39 MB | Adobe PDF |
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