Discovery of a new PG 1159 (GW Vir) pulsator
dc.contributor.author | Kepler, Souza Oliveira | pt_BR |
dc.contributor.author | Fraga, Luciano | pt_BR |
dc.contributor.author | Winget, Donald Earl | pt_BR |
dc.contributor.author | Bell, Keaton | pt_BR |
dc.contributor.author | Córsico, Alejandro Hugo | pt_BR |
dc.contributor.author | Werner, Klaus | pt_BR |
dc.date.accessioned | 2014-11-15T02:15:56Z | pt_BR |
dc.date.issued | 2014 | pt_BR |
dc.identifier.issn | 0035-8711 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/106995 | pt_BR |
dc.description.abstract | We report the discovery of pulsations in the spectroscopic PG 1159 type pre-white dwarf SDSS J075415.12 + 085232.18. Analysis of the spectrum by Werner et al. indicated Teff = 120 000 ± 10 000 K, log g = 7.0 ± 0.3, mass M= 0.52 ± 0.02Mʘ, C/He = 0.33 by number. We obtained time series images with the SOAR 4.1 m telescope and 2.1 m Otto Struve telescope at McDonald Observatory and show the star is also a variable PG 1159 type star, with dominant period of 525 s. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Monthly notices of the Royal Astronomical Society. Oxford. Vol. 442, no. 3 (Aug. 2014), p. 2278–2281 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Stars: individual: SDSS J075415.12 + 085232.18 | en |
dc.subject | Anãs brancas | pt_BR |
dc.subject | White dwarfs | en |
dc.title | Discovery of a new PG 1159 (GW Vir) pulsator | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000942394 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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