Evolution of iron core white dwarfs

Details Evolution of iron core white dwarfs Evolution of iron core white dwarfs

1999-11-19

arxiv.org/abs/astro-ph/9911371v1

Astronomy and Astrophysics

Astrophysics

8 pages, 21 figures. Accepted for publication in MNRAS

Scientific paper

10.1046/j.1365-8711.2000.03236.x

Recent measurements made by Hipparcos (Provencal et al. 1998) present observational evidence supporting the existence of some white dwarf (WD) stars with iron - rich, core composition. In this connection, the present paper is aimed at exploring the structure and evolution of iron - core WDs by means of a detailed and updated evolutionary code. In particular, we examine the evolution of the central conditions, neutrino luminosity, surface gravity, crystallization, internal luminosity profiles and ages. We find that the evolution of iron - rich WDs is markedly different from that of their carbon - oxygen counterparts. In particular, cooling is strongly accelerated as compared with the standard case. Thus, if iron WDs were very numerous, some of them would have had time enough to evolve at lower luminosities than that corresponding to the fall - off in the observed WD luminosity function.

Affiliated with

Also associated with

No associations

Rating

Evolution of iron core white dwarfs 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 Evolution of iron core white dwarfs, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evolution of iron core white dwarfs will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-413837