Whole Earth Telescope observations of the helium interacting binary PG 1346+082 (CR bootis)
dc.contributor.author | Provencal, Judith L. | pt_BR |
dc.contributor.author | Winget, Donald Earl | pt_BR |
dc.contributor.author | Nather, R. Edward | pt_BR |
dc.contributor.author | Robinson, E.L. | pt_BR |
dc.contributor.author | Clemens, J. Christopher | pt_BR |
dc.contributor.author | Bradley, Paul A. | pt_BR |
dc.contributor.author | Claver, C.F. | pt_BR |
dc.contributor.author | Kleinman, Scot James | pt_BR |
dc.contributor.author | Grauer, Albert D. | pt_BR |
dc.contributor.author | Hine, B.P. | pt_BR |
dc.contributor.author | Ferrario, Lilia | pt_BR |
dc.contributor.author | O'Donoghue, Darragh | pt_BR |
dc.contributor.author | Warner, B. | pt_BR |
dc.contributor.author | Vauclair, Gérard | pt_BR |
dc.contributor.author | Chevreton, Michel | pt_BR |
dc.contributor.author | Kepler, Souza Oliveira | pt_BR |
dc.contributor.author | Wood, Matthew A. | pt_BR |
dc.contributor.author | Henry, G.W. | pt_BR |
dc.date.accessioned | 2015-01-08T02:13:05Z | pt_BR |
dc.date.issued | 1997 | pt_BR |
dc.identifier.issn | 0004-637X | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/108834 | pt_BR |
dc.description.abstract | We present our analysis of 240 hr of white-light, high-speed photometry of the dwarf nova-like helium variable PG 1346+082 (CR Boo). We identify two frequencies in the low-state power spectrum, at 679.670±0.004 μHz and 669.887±0.008 μHz. The 679.670 μHz variation is coherent over at least a 2 week time span, the first demonstration of a phase-coherent photometric variation in any dwarf nova-like interacting binary white dwarf system. The high-state power spectrum contains a complex fundamental with a frequency similar, but not identical, to the low-state spectrum, and a series of harmonics not detected in low state. We also uncover an unexpected dependence of the high-frequency powerÏs amplitude and frequency structure on overall system magnitude. We discuss these Ðndings in light of the general AM CVn system model, particularly the implications of the high-order harmonics on future studies of disk structure, mass transfer, and disk viscosity. | en |
dc.format.mimetype | application/pdf | |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | The astrophysical journal. Chicago. Vol. 480, no. 1, pt. 1 (May 1997), p. 383-394 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Stars : individual (PG 1346+082) | en |
dc.subject | Fotometria estelar | pt_BR |
dc.subject | Stars : oscillations | en |
dc.subject | Anãs brancas | pt_BR |
dc.subject | Estrelas binarias cataclismicas | pt_BR |
dc.subject | White dwarfs | en |
dc.title | Whole Earth Telescope observations of the helium interacting binary PG 1346+082 (CR bootis) | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000212723 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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