Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/32021
Campo DC | Valore | Lingua |
---|---|---|
dc.contributor.author | Cloutier, Ryan | en_US |
dc.contributor.author | Rodriguez, Joseph E. | en_US |
dc.contributor.author | Irwin, Jonathan | en_US |
dc.contributor.author | Charbonneau, David | en_US |
dc.contributor.author | Stassun, Keivan G. | en_US |
dc.contributor.author | Mortier, Annelies | en_US |
dc.contributor.author | Latham, David W. | en_US |
dc.contributor.author | Isaacson, Howard | en_US |
dc.contributor.author | Howard, Andrew W. | en_US |
dc.contributor.author | Udry, Stéphane | en_US |
dc.contributor.author | Wilson, Thomas G. | en_US |
dc.contributor.author | Watson, Christopher A. | en_US |
dc.contributor.author | Pinamonti, Matteo | en_US |
dc.contributor.author | Lienhard, Florian | en_US |
dc.contributor.author | GIACOBBE, Paolo | en_US |
dc.contributor.author | Guerra, Pere | en_US |
dc.contributor.author | Collins, Karen A. | en_US |
dc.contributor.author | Beiryla, Allyson | en_US |
dc.contributor.author | Esquerdo, Gilbert A. | en_US |
dc.contributor.author | Matthews, Elisabeth | en_US |
dc.contributor.author | Matson, Rachel A. | en_US |
dc.contributor.author | Howell, Steve B. | en_US |
dc.contributor.author | Furlan, Elise | en_US |
dc.contributor.author | Crossfield, Ian J. M. | en_US |
dc.contributor.author | Winters, Jennifer G. | en_US |
dc.contributor.author | Nava, Chantanelle | en_US |
dc.contributor.author | Ment, Kristo | en_US |
dc.contributor.author | Lopez, Eric D. | en_US |
dc.contributor.author | Ricker, George | en_US |
dc.contributor.author | Vanderspek, Roland | en_US |
dc.contributor.author | Seager, Sara | en_US |
dc.contributor.author | Jenkins, Jon M. | en_US |
dc.contributor.author | Ting, Eric B. | en_US |
dc.contributor.author | Tenenbaum, Peter | en_US |
dc.contributor.author | SOZZETTI, Alessandro | en_US |
dc.contributor.author | Sha, Lizhou | en_US |
dc.contributor.author | Ségransan, Damien | en_US |
dc.contributor.author | Schlieder, Joshua E. | en_US |
dc.contributor.author | Sasselov, Dimitar | en_US |
dc.contributor.author | Roy, Arpita | en_US |
dc.contributor.author | Robertson, Paul | en_US |
dc.contributor.author | Rice, Ken | en_US |
dc.contributor.author | PORETTI, Ennio | en_US |
dc.contributor.author | Piotto, Giampaolo | en_US |
dc.contributor.author | Phillips, David | en_US |
dc.contributor.author | Pepper, Joshua | en_US |
dc.contributor.author | Pepe, Francesco | en_US |
dc.contributor.author | MOLINARI, Emilio Carlo | en_US |
dc.contributor.author | Mocnik, Teo | en_US |
dc.contributor.author | MICELA, Giuseppina | en_US |
dc.contributor.author | Mayor, Michel | en_US |
dc.contributor.author | Martinez Fiorenzano, Aldo F. | en_US |
dc.contributor.author | Mallia, Franco | en_US |
dc.contributor.author | Lubin, Jack | en_US |
dc.contributor.author | Lovis, Christophe | en_US |
dc.contributor.author | López-Morales, Mercedes | en_US |
dc.contributor.author | Kosiarek, Molly R. | en_US |
dc.contributor.author | Kielkopf, John F. | en_US |
dc.contributor.author | Kane, Stephen R. | en_US |
dc.contributor.author | Jensen, Eric L. N. | en_US |
dc.contributor.author | ISOPI, Giovanni | en_US |
dc.contributor.author | Huber, Daniel | en_US |
dc.contributor.author | Hill, Michelle L. | en_US |
dc.contributor.author | HARUTYUNYAN, AVET | en_US |
dc.contributor.author | Gonzales, Erica | en_US |
dc.contributor.author | Giacalone, Steven | en_US |
dc.contributor.author | Ghedina, Adriano | en_US |
dc.contributor.author | Ercolino, Andrea | en_US |
dc.contributor.author | Dumusque, Xavier | en_US |
dc.contributor.author | Dressing, Courtney D. | en_US |
dc.contributor.author | Damasso, Mario | en_US |
dc.contributor.author | Dalba, Paul A. | en_US |
dc.contributor.author | COSENTINO, Rosario | en_US |
dc.contributor.author | Conti, Dennis M. | en_US |
dc.contributor.author | Colón, Knicole D. | en_US |
dc.contributor.author | Collins, Kevin I. | en_US |
dc.contributor.author | Cameron, Andrew Collier | en_US |
dc.contributor.author | Ciardi, David | en_US |
dc.contributor.author | Christiansen, Jessie | en_US |
dc.contributor.author | Chontos, Ashley | en_US |
dc.contributor.author | Cecconi, Massimo | en_US |
dc.contributor.author | Caldwell, Douglas A. | en_US |
dc.contributor.author | Burke, Christopher | en_US |
dc.contributor.author | Buchhave, Lars | en_US |
dc.contributor.author | Beichman, Charles | en_US |
dc.contributor.author | Behmard, Aida | en_US |
dc.contributor.author | Beard, Corey | en_US |
dc.contributor.author | Akana Murphy, Joseph M. | en_US |
dc.date.accessioned | 2022-03-29T12:19:33Z | - |
dc.date.available | 2022-03-29T12:19:33Z | - |
dc.date.issued | 2020 | en_US |
dc.identifier.issn | 0004-6256 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/32021 | - |
dc.description.abstract | Small planets on close-in orbits tend to exhibit envelope mass fractions of either effectively zero or up to a few percent depending on their size and orbital period. Models of thermally driven atmospheric mass loss and of terrestrial planet formation in a gas-poor environment make distinct predictions regarding the location of this rocky/nonrocky transition in period-radius space. Here we present the confirmation of TOI-1235 b (P = 3.44 days, ${r}_{{\rm{p}}}={1.738}_{-0.076}^{+0.087}$ ${R}_{\oplus }$ ), a planet whose size and period are intermediate between the competing model predictions, thus making the system an important test case for emergence models of the rocky/nonrocky transition around early M dwarfs (R<SUB>s</SUB> = 0.630 ± 0.015 ${R}_{\odot }$ , M<SUB>s</SUB> = 0.640 ± 0.016 ${M}_{\odot }$ ). We confirm the TESS planet discovery using reconnaissance spectroscopy, ground-based photometry, high-resolution imaging, and a set of 38 precise radial velocities (RVs) from HARPS-N and HIRES. We measure a planet mass of ${6.91}_{-0.85}^{+0.75}$ ${M}_{\oplus }$ , which implies an iron core mass fraction of ${20}_{-12}^{+15}$ % in the absence of a gaseous envelope. The bulk composition of TOI-1235 b is therefore consistent with being Earth-like, and we constrain an H/He envelope mass fraction to be <0.5% at 90% confidence. Our results are consistent with model predictions from thermally driven atmospheric mass loss but not with gas-poor formation, suggesting that the former class of processes remains efficient at sculpting close-in planets around early M dwarfs. Our RV analysis also reveals a strong periodicity close to the first harmonic of the photometrically determined stellar rotation period that we treat as stellar activity, despite other lines of evidence favoring a planetary origin ( $P={21.8}_{-0.8}^{+0.9}$ days, ${m}_{{\rm{p}}}\sin i={13.0}_{-5.3}^{+3.8}$ ${M}_{\oplus }$ ) that cannot be firmly ruled out by our data. | en_US |
dc.language.iso | eng | en_US |
dc.title | TOI-1235 b: A Keystone Super-Earth for Testing Radius Valley Emergence Models around Early M Dwarfs | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-3881/ab9534 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-3881/ab9534 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 160 | en_US |
dc.relation.issue | 1 | en_US |
dc.relation.firstpage | 22 | 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 | 2020AJ....160...22C | 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. Brera | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Palermo | - |
crisitem.author.dept | O.A. Torino | - |
crisitem.author.dept | O.A. Catania | - |
crisitem.author.orcid | 0000-0002-7504-365X | - |
crisitem.author.orcid | 0000-0003-1200-0473 | - |
crisitem.author.orcid | 0000-0002-1742-7735 | - |
crisitem.author.orcid | 0000-0002-9900-4751 | - |
crisitem.author.orcid | 0000-0001-9984-4278 | - |
crisitem.author.orcid | 0000-0003-1784-1431 | - |
crisitem.journal.journalissn | 0004-6256 | - |
crisitem.journal.ance | E016224 | - |
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Cloutieretal.2020b.pdf | [Administrators only] | 2.39 MB | Adobe PDF |
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