Revisiting the DBs Instability Strip Using UV Spectra

Details Revisiting the DBs Instability Strip Using UV Spectra Revisiting the DBs Instability Strip Using UV Spectra

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..334..557c&link_type=abstract

14th European Workshop on White Dwarfs, ASP Conference Series, Vol. 334 Proceedings of a meeting held at Kiel, July 19-23, 2004

Astronomy and Astrophysics

Astronomy

1

Scientific paper

We determined the effective temperature, surface gravity, and spectroscopic distance simultaneously, for 35 DBs with spectra obtained by the IUE satellite. We used the recalibrated spectra and available magnitudes to assure the derived distances. As UV spectra alone cannot tightly restrict the gravity, we calculated the absolute magnitude from the apparent magnitude when available, and spectroscopic distance, to cross correlate the spectra and magnitude solutions. We obtained a pure DB instability strip, ranging from 25 400≥ Teff}≥ 22 700, for this homogeneous data set.

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