Mostrar el registro sencillo del ítem
Evolutionary timescale of the pulsating white dwarf G117-B15A : the most stable optical clock known
dc.contributor.author | Kepler, Souza Oliveira | pt_BR |
dc.contributor.author | Mukadam, Anjum Shagufta | pt_BR |
dc.contributor.author | Winget, Donald Earl | pt_BR |
dc.contributor.author | Nather, R. Edward | pt_BR |
dc.contributor.author | Metcalfe, Travis S. | pt_BR |
dc.contributor.author | Reed, M. D. | pt_BR |
dc.contributor.author | Kawaler, Steven D. | pt_BR |
dc.contributor.author | Bradley, Paul A. | pt_BR |
dc.date.accessioned | 2015-01-13T02:14:41Z | pt_BR |
dc.date.issued | 2000 | pt_BR |
dc.identifier.issn | 0004-637X | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/108887 | pt_BR |
dc.description.abstract | We observe G117-B15A, the most precise optical clock known, to measure the rate of change of the main pulsation period of this blue-edge DAV white dwarf. Even though the obtained value is only within 1 σ, P = (2.3±1.4) x 10 -15 s s-ˡ, it is already constraining the evolutionary timescale of this cooling white dwarf star. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | The astrophysical journal. Chicago. Vol. 534, no. 2 pt. 2 (May 2000), p. L185-L188 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Stars: evolution | en |
dc.subject | Evolucao estelar | pt_BR |
dc.subject | Pulsacoes estelares | pt_BR |
dc.subject | Stars: individual (G117-B15A) | en |
dc.subject | Stars: oscillations | en |
dc.subject | Anãs brancas | pt_BR |
dc.subject | Estrelas variaveis | pt_BR |
dc.title | Evolutionary timescale of the pulsating white dwarf G117-B15A : the most stable optical clock known | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000274870 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
Ficheros en el ítem
Este ítem está licenciado en la Creative Commons License
-
Artículos de Periódicos (39951)Ciencias Exactas y Naturales (6085)