Questioning the Purity of the ZZ Ceti Instability Strip

Details Questioning the Purity of the ZZ Ceti Instability Strip Questioning the Purity of the ZZ Ceti Instability Strip

Jul 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005aspc..334..459m&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 use the new ZZ Ceti stars (hydrogen atmosphere white dwarf variables; DAVs) discovered within the Sloan Digital Sky Survey (Mukadam et al. 2004a) to re-define the empirical ZZ Ceti instability strip. This is the first time since the discovery of white dwarf variables in 1968 that we have a statistically significant set of homogeneous spectra of ZZ Ceti stars, acquired using the same detection system and with consistent data reductions. The homogeneity of the spectra reduces the scatter in the spectroscopic temperatures and we find a narrow instability strip of width ˜ 950 K, from 10850-11800 K. We question the purity of the instability strip as we find several non-variables within.

Affiliated with

Also associated with

No associations

Rating

Questioning the Purity of the ZZ Ceti Instability Strip does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Questioning the Purity of the ZZ Ceti Instability Strip, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Questioning the Purity of the ZZ Ceti Instability Strip will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1434414