Limits on planets around pulsating white dwarf stars
dc.contributor.author | Mullally, Fergal | pt_BR |
dc.contributor.author | Winget, Donald Earl | pt_BR |
dc.contributor.author | DeGennaro, Steven | pt_BR |
dc.contributor.author | Jeffery, Elizabeth | pt_BR |
dc.contributor.author | Thompson, S. E. | pt_BR |
dc.contributor.author | Chandler, Dean W. | pt_BR |
dc.contributor.author | Kepler, Souza Oliveira | pt_BR |
dc.date.accessioned | 2015-01-15T02:15:06Z | pt_BR |
dc.date.issued | 2008 | pt_BR |
dc.identifier.issn | 0004-637X | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/108964 | pt_BR |
dc.description.abstract | We present limits on planetary companions to pulsating white dwarf stars. A subset of these stars exhibit extreme stability in the period and phase of some of their pulsation modes; a planet can be detected around such a star by searching for periodic variations in the arrival time of these pulsations. We present limits on companions greater than a few Jupiter masses around a sample of 15 white dwarf stars as part of an ongoing survey. One star shows a variation in arrival time consistent with a 2MJ planet in a 4.5 yr orbit.We discuss other possible explanations for the observed signal and conclude that a planet is the most plausible explanation based on the data available. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | The astrophysical journal. Chicago. Vol. 676, no. 1 (Mar. 2008), p. 573-583 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Pulsacoes estelares | pt_BR |
dc.subject | Planetary systems | en |
dc.subject | Anãs brancas | pt_BR |
dc.subject | White dwarfs | en |
dc.title | Limits on planets around pulsating white dwarf stars | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000634350 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
Este item está licenciado na Creative Commons License
-
Artigos de Periódicos (39330)Ciências Exatas e da Terra (5974)