Time-resolved spectroscopy and spectrophotometry of the pulsating sdB star PG 1605+072

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dc.creatorO'Toole, S. J.
dc.creatorBedding, T. R.
dc.creatorKjeldsen, H.
dc.creatorJoergensen, M. A. S. G.
dc.date2002-10-17
dc.date.accessioned2026-07-07T02:05:45Z
dc.date.available2026-07-07T02:05:45Z
dc.descriptionWe present the latest results from our analysis of time resolved spectroscopy of PG 1605+072, a high amplitude pulsating sdB star. The star is believed to have evolved off the extreme horizontal branch, and it is uncertain whether it pulsates in p- or g-modes. Previous studies of PG 1605+072 have found amplitude variation and/or very closely spaced frequencies. We compare our velocity measurements with new simultaneous spectrophotometric measurements and analyse phase differences for the 8 frequencies found in velocity. Phase differences between velocity, spectrophotometry and equivalent width are discussed.
dc.description4 pages, 3 figures, to appear in "Asteroseismology Across the HR Diagram" (Porto, July 2002), Eds. Thompson M.J., Cunha M.S. and Monteiro M.J.P.F.G. (Kluwer)
dc.identifierhttps://arxiv.org/abs/astro-ph/0210395
dc.identifierhttp://arxiv.org/abs/astro-ph/0210395
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/5195
dc.subjectAstrophysics
dc.titleTime-resolved spectroscopy and spectrophotometry of the pulsating sdB star PG 1605+072
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