Astronomy and Astrophysics – Astrophysics
Scientific paper
2004-04-16
Astron.Astrophys. 419 (2004) L5
Astronomy and Astrophysics
Astrophysics
4 pages, 3 figures, Astron. Astrophys. Lett. (in press)
Scientific paper
10.1051/0004-6361:20040120
We investigate the sample of 1175 new nonmagnetic DA white dwarfs with the effective temperatures T_eff > 12000 K, which were extracted from the Data Release 1 of the Sloan Digital Sky Survey. We determined masses, radii, and bolometric luminosities of stars in the sample. The above parameters were derived from the effective temperatures T_eff and surface gravities log g published in the DR1, and the new theoretical M - R relations for carbon-core and oxygen-core white dwarfs. Mass distribution of white dwarfs in this sample exhibits the peak at M = 0.562 M_sol (carbon core stars), and the tail towards higher masses. Both the shape of the mass distribution function and the empirical mass - radius relation are practically identical for white dwarfs with either pure carbon or pure oxygen cores.
Althaus Leandro G.
Madej Jerzy
Nalezyty Miroslaw
No associations
LandOfFree
Mass distribution of DA white dwarfs in the First Data Release of the Sloan Digital Sky Survey 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 Mass distribution of DA white dwarfs in the First Data Release of the Sloan Digital Sky Survey, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mass distribution of DA white dwarfs in the First Data Release of the Sloan Digital Sky Survey will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-527208