Gravitational redshift for the Pleiad white dwarf LB 1497

Details Gravitational redshift for the Pleiad white dwarf LB 1497 Gravitational redshift for the Pleiad white dwarf LB 1497

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991apj...376..186w&link_type=abstract

Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 376, July 20, 1991, p. 186-189.

Astronomy and Astrophysics

Astrophysics

18

Red Shift, Stellar Evolution, Stellar Gravitation, White Dwarf Stars, Line Spectra, Stellar Mass, Stellar Spectra, Stellar Temperature

Scientific paper

A new gravitational redshift of +84 + or - 9 km/s is derived for the white dwarf WD 0349 + 247 in the Pleiades (LB 1497) using the Hale 5-m telescope and the MMT. For a carbon core this translates to a mass of 1.02 solar masses using the Hamada-Salpeter mass-radius relation. The effective temperature is derived from the H-alpha and H-beta line profiles and is found to be 32,000 + or - 1000 K. Using 5.54 mag for the Pleiades distance modulus, this yields log (radius/solar radius) = -2.13 + or - 0.03 for the star. This radius combined with the redshift gives 0.98 solar masses for the star's mass. These values agree with the mass-radius relation and can be used to place constraints on the evolution of the star.

Affiliated with

Also associated with

No associations

Rating

Gravitational redshift for the Pleiad white dwarf LB 1497 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 Gravitational redshift for the Pleiad white dwarf LB 1497, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gravitational redshift for the Pleiad white dwarf LB 1497 will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-861607