Please use this identifier to cite or link to this item:
http://hdl.handle.net/20.500.12386/32027
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Polanski, Alex S. | en_US |
dc.contributor.author | Crossfield, Ian J. M. | en_US |
dc.contributor.author | Burt, Jennifer A. | en_US |
dc.contributor.author | Nowak, Grzegorz | en_US |
dc.contributor.author | López-Morales, Mercedes | en_US |
dc.contributor.author | Mortier, Annelies | en_US |
dc.contributor.author | PORETTI, Ennio | en_US |
dc.contributor.author | Behmard, Aida | en_US |
dc.contributor.author | Benneke, Björn | en_US |
dc.contributor.author | Blunt, Sarah | en_US |
dc.contributor.author | BONOMO, ALDO STEFANO | en_US |
dc.contributor.author | Butler, R. Paul | en_US |
dc.contributor.author | Chontos, Ashley | en_US |
dc.contributor.author | COSENTINO, Rosario | en_US |
dc.contributor.author | Crane, Jeffrey D. | en_US |
dc.contributor.author | Dumusque, Xavier | en_US |
dc.contributor.author | Fulton, Benjamin J. | en_US |
dc.contributor.author | Ghedina, Adriano | en_US |
dc.contributor.author | Gorjian, Varoujan | en_US |
dc.contributor.author | Grunblatt, Samuel K. | en_US |
dc.contributor.author | HARUTYUNYAN, AVET | en_US |
dc.contributor.author | Howard, Andrew W. | en_US |
dc.contributor.author | Isaacson, Howard | en_US |
dc.contributor.author | Kosiarek, Molly R. | en_US |
dc.contributor.author | Latham, David W. | en_US |
dc.contributor.author | Luque, Rafael | en_US |
dc.contributor.author | Martinez Fiorenzano, Aldo F. | en_US |
dc.contributor.author | Mayor, Michel | en_US |
dc.contributor.author | Mills, Sean M. | en_US |
dc.contributor.author | MOLINARI, Emilio Carlo | en_US |
dc.contributor.author | Nagel, Evangelos | en_US |
dc.contributor.author | Pallé, Enric | en_US |
dc.contributor.author | Petigura, Erik A. | en_US |
dc.contributor.author | Shectman, Stephen A. | en_US |
dc.contributor.author | SOZZETTI, Alessandro | en_US |
dc.contributor.author | Teske, Johanna K. | en_US |
dc.contributor.author | Wang, Sharon Xuesong | en_US |
dc.contributor.author | Weiss, Lauren M. | en_US |
dc.date.accessioned | 2022-03-29T12:36:40Z | - |
dc.date.available | 2022-03-29T12:36:40Z | - |
dc.date.issued | 2021 | en_US |
dc.identifier.issn | 0004-6256 | en_US |
dc.identifier.uri | http://hdl.handle.net/20.500.12386/32027 | - |
dc.description.abstract | Using radial-velocity measurements from four instruments, we report the mass and density of a 2.043 ±0.069 R <SUB>⊕</SUB> sub-Neptune orbiting the quiet K-dwarf Wolf 503 (HIP 67285). In addition, we present improved orbital and transit parameters by analyzing previously unused short-cadence K2 campaign 17 photometry and conduct a joint radial-velocity-transit fit to constrain the eccentricity at 0.41 ± 0.05. The addition of a transit observation by Spitzer also allows us to refine the orbital ephemeris in anticipation of further follow-up. Our mass determination, 6.26 ${}_{-0.70}^{+0.69}$ M <SUB>⊕</SUB> , in combination with the updated radius measurements, gives Wolf 503 b a bulk density of $\rho ={2.92}_{-0.44}^{+0.50}$ g cm<SUP>-3</SUP>. Using interior composition models, we find this density is consistent with an Earth-like core with either a substantial H<SUB>2</SUB>O mass fraction (45 ${}_{-16}^{+19}$ %) or a modest H/He envelope (0.5% ± 0.3%). The low H/He mass fraction, along with the old age of Wolf 503 (11 ± 2 Gyr), makes this sub-Neptune an opportune subject for testing theories of XUV-driven mass loss while the brightness of its host (J = 8.3 mag) makes it an attractive target for transmission spectroscopy. | en_US |
dc.language.iso | eng | en_US |
dc.title | Wolf 503 b: Characterization of a Sub-Neptune Orbiting a Metal-poor K Dwarf | en_US |
dc.type | Article | - |
dc.identifier.doi | 10.3847/1538-3881/ac1590 | en_US |
dc.identifier.scopus | 2-s2.0-85120003784 | en_US |
dc.identifier.url | https://api.elsevier.com/content/abstract/scopus_id/85120003784 | en_US |
dc.identifier.url | https://iopscience.iop.org/article/10.3847/1538-3881/ac1590 | en_US |
dc.relation.medium | STAMPA | en_US |
dc.relation.volume | 162 | en_US |
dc.relation.issue | 6 | en_US |
dc.relation.firstpage | 238 | 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..238P | 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.fulltext | With Fulltext | - |
item.grantfulltext | open | - |
item.languageiso639-1 | en | - |
item.openairetype | Article | - |
item.cerifentitytype | Publications | - |
crisitem.journal.journalissn | 0004-6256 | - |
crisitem.journal.ance | E016224 | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Torino | - |
crisitem.author.dept | O.A. Catania | - |
crisitem.author.dept | Direzione Scientifica | - |
crisitem.author.dept | Direzione Scientifica | - |
crisitem.author.dept | O.A. Brera | - |
crisitem.author.dept | O.A. Torino | - |
crisitem.author.orcid | 0000-0003-1200-0473 | - |
crisitem.author.orcid | 0000-0002-6177-198X | - |
crisitem.author.orcid | 0000-0003-1784-1431 | - |
crisitem.author.orcid | 0000-0003-4702-5152 | - |
crisitem.author.orcid | 0000-0002-1742-7735 | - |
crisitem.author.orcid | 0000-0002-7504-365X | - |
Appears in Collections: | 1.01 Articoli in rivista |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
2107.08092.pdf | preprint | 2.15 MB | Adobe PDF | View/Open |
Polanskietal.2021.pdf | [Administrators only] | 8.31 MB | Adobe PDF |
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