Structure of the ZZ Ceti Stars L19-2 and GD165

Details Structure of the ZZ Ceti Stars L19-2 and GD165 Structure of the ZZ Ceti Stars L19-2 and GD165

Dec 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001stin...0187782b&link_type=abstract

Technical Report, DE2001-768172; LA-UR-00-3975

Computer Science

Stellar Models, White Dwarf Stars, Carbon, Helium, Hydrogen, Stellar Mass

Scientific paper

We infer the structure of the ZZ Ceti stars L 19-2 and GD 165 by comparing the observed periods with periods predicted from an extensive grid of evolutionary white dwarf models. The observed period structure of these two stars is similar, and the models for both stars have a helium layer mass of about 10-2W and a hydrogen layer mass of about 10 to the minus 4th power moles. The core of these models is 20:80 C/O that extends to 0.60 to 0.65 approximately with a linear ramp to pure carbon by 0.901 moles. The differences in the observed effective temperature, log g, and periods imply different stellar masses for these two stars. L 19-2 has a favored stellar mass of 0.72M and GD 165 has a favored stellar mass range of 0.65 to 0.681.

Affiliated with

Also associated with

No associations

Rating

Structure of the ZZ Ceti Stars L19-2 and GD165 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 Structure of the ZZ Ceti Stars L19-2 and GD165, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Structure of the ZZ Ceti Stars L19-2 and GD165 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1375798