Registro completo de metadatos
| Campo DC | Valor | Lengua/Idioma |
|---|---|---|
| dc.provenance | CONICET | - |
| dc.creator | Astudillo-Defru, N. | - |
| dc.creator | Diaz, Rodrigo Fernando | - |
| dc.creator | Bonfils, X. | - |
| dc.creator | Almenara, J. M. | - |
| dc.creator | Delisle, J. B. | - |
| dc.creator | Bouchy, F. | - |
| dc.creator | Delfosse, X. | - |
| dc.creator | Forveille, T. | - |
| dc.creator | Lovis, C. | - |
| dc.creator | Mayor, M. | - |
| dc.creator | Murgas, F. | - |
| dc.creator | Pepe, F. | - |
| dc.creator | Santos, N. C. | - |
| dc.creator | Ségransan, D. | - |
| dc.creator | Udry, S. | - |
| dc.creator | Wünsche, A. | - |
| dc.date | 2018-07-12T15:41:59Z | - |
| dc.date | 2018-07-12T15:41:59Z | - |
| dc.date | 2017-09 | - |
| dc.date | 2018-07-11T17:38:32Z | - |
| dc.date.accessioned | 2019-04-29T15:33:13Z | - |
| dc.date.available | 2019-04-29T15:33:13Z | - |
| dc.date.issued | 2017-09 | - |
| dc.identifier | Astudillo-Defru, N.; Diaz, Rodrigo Fernando; Bonfils, X.; Almenara, J. M.; Delisle, J. B.; et al.; The HARPS search for southern extra-solar planets: XLII. A system of Earth-mass planets around the nearby M dwarf YZ Ceti; EDP Sciences; Astronomy and Astrophysics; 605; L11; 9-2017 | - |
| dc.identifier | 0004-6361 | - |
| dc.identifier | http://hdl.handle.net/11336/51861 | - |
| dc.identifier | CONICET Digital | - |
| dc.identifier | CONICET | - |
| dc.identifier.uri | http://rodna.bn.gov.ar:8080/jspui/handle/bnmm/296402 | - |
| dc.description | Exoplanet surveys have shown that systems with multiple low-mass planets on compact orbits are common. Except for a few cases, however, the masses of these planets are generally unknown. At the very end of the main sequence, host stars have the lowest mass and hence offer the largest reflect motion for a given planet. In this context, we monitored the low-mass (0.13 MȮ) M dwarf YZ Cet (GJ 54.1, HIP 5643) intensively and obtained radial velocities and stellar-activity indicators derived from spectroscopy and photometry, respectively. We find strong evidence that it is orbited by at least three planets in compact orbits (POrb = 1.97, 3.06, 4.66 days), with the inner two near a 2:3 mean-motion resonance. The minimum masses are comparable to the mass of Earth (M sin i = 0.75 ± 0.13, 0.98 ± 0.14, and 1.14 ± 0.17 MO±), and they are also the lowest masses measured by radial velocity so far. We note the possibility for a fourth planet with an even lower mass of M sin i = 0.472 ± 0.096 MO± at POrb = 1.04 days. An n-body dynamical model is used to place further constraints on the system parameters. At 3.6 parsecs, YZ Cet is the nearest multi-planet system detected to date. | - |
| dc.description | Fil: Astudillo-Defru, N.. Universidad de Ginebra; Suiza | - |
| dc.description | Fil: Diaz, Rodrigo Fernando. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; Argentina. Universidad de Buenos Aires; Argentina | - |
| dc.description | Fil: Bonfils, X.. Universite Grenoble Alpes; Suiza | - |
| dc.description | Fil: Almenara, J. M.. Universidad de Ginebra; Suiza | - |
| dc.description | Fil: Delisle, J. B.. Universidad de Ginebra; Suiza | - |
| dc.description | Fil: Bouchy, F.. Universidad de Ginebra; Suiza | - |
| dc.description | Fil: Delfosse, X.. Universite Grenoble Alpes; Suiza | - |
| dc.description | Fil: Forveille, T.. Universite Grenoble Alpes; Suiza | - |
| dc.description | Fil: Lovis, C.. Universidad de Ginebra; Suiza | - |
| dc.description | Fil: Mayor, M.. Universidad de Ginebra; Suiza | - |
| dc.description | Fil: Murgas, F.. Instituto Astrofisico de Canarias; España | - |
| dc.description | Fil: Pepe, F.. Universidad de Ginebra; Suiza | - |
| dc.description | Fil: Santos, N. C.. Universidade Do Porto, Centro de Astrofisica; Portugal. Universidad de Porto; Portugal | - |
| dc.description | Fil: Ségransan, D.. Universidad de Ginebra; Suiza | - |
| dc.description | Fil: Udry, S.. Universidad de Ginebra; Suiza | - |
| dc.description | Fil: Wünsche, A.. Universite Grenoble Alpes; Suiza | - |
| dc.format | application/pdf | - |
| dc.format | application/pdf | - |
| dc.language | eng | - |
| dc.publisher | EDP Sciences | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/url/http://www.aanda.org/10.1051/0004-6361/201731581 | - |
| dc.relation | info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1051/0004-6361/201731581 | - |
| dc.rights | info:eu-repo/semantics/openAccess | - |
| dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
| dc.source | reponame:CONICET Digital (CONICET) | - |
| dc.source | instname:Consejo Nacional de Investigaciones Científicas y Técnicas | - |
| dc.source | instacron:CONICET | - |
| dc.source.uri | http://hdl.handle.net/11336/51861 | - |
| dc.subject | PLANETARY SYSTEMS | - |
| dc.subject | STARS: INDIVIDUAL: YZ CET | - |
| dc.subject | STARS: LATE-TYPE | - |
| dc.subject | TECHNIQUES: RADIAL VELOCITIES | - |
| dc.subject | Astronomía | - |
| dc.subject | Ciencias Físicas | - |
| dc.subject | CIENCIAS NATURALES Y EXACTAS | - |
| dc.title | The HARPS search for southern extra-solar planets: XLII. A system of Earth-mass planets around the nearby M dwarf YZ Ceti | - |
| dc.type | info:eu-repo/semantics/article | - |
| dc.type | info:eu-repo/semantics/publishedVersion | - |
| dc.type | info:ar-repo/semantics/articulo | - |
| Aparece en las colecciones: | CONICET | |
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