A Grid of Non-LTE Model Atmospheres for White Dwarfs in Cataclysmic Variables

Details A Grid of Non-LTE Model Atmospheres for White Dwarfs in Cataclysmic Variables A Grid of Non-LTE Model Atmospheres for White Dwarfs in Cataclysmic Variables

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...537..946b&link_type=abstract

The Astrophysical Journal, Volume 537, Issue 2, pp. 946-952.

Astronomy and Astrophysics

Astronomy

13

Stars: Novae, Cataclysmic Variables, Stars: Atmospheres, Stars: Individual (U Geminorum)-, Stars: White Dwarfs

Scientific paper

We have calculated a grid of non-LTE (NLTE) line-blanketed model atmospheres for white dwarfs in cataclysmic variable (CV) systems using our stellar atmosphere code PHOENIX. The grid covers the temperature range 20,000-500,000 K for solar abundances and 10-2 and 10-4 solar metal abundance. The effective temperature resolution is 10,000 K in the range 20,000-200,000 K and is 20,000 K in the range 200,000-500,000 K. The models include a large number of NLTE levels for light metals such as CNO and heavy metals such as Ni and Fe. The necessity of using self-consistent NLTE line-blanketed model atmospheres for the analysis of white dwarfs is well known and reaffirmed here. We discuss the importance of metal opacity, especially metals heavier than Ca, in the atmospheres of CV primaries. We also compare our grid to previously published models and discuss the general improvements offered by our models. In addition, a specific model from our grid is compared to a Hubble Space Telescope observation of U Gem and predictions for Far-Ultraviolet Spectroscopic Explorer (FUSE) observations are made.

Affiliated with

Also associated with

No associations

Rating

A Grid of Non-LTE Model Atmospheres for White Dwarfs in Cataclysmic Variables 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 A Grid of Non-LTE Model Atmospheres for White Dwarfs in Cataclysmic Variables, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A Grid of Non-LTE Model Atmospheres for White Dwarfs in Cataclysmic Variables will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1717726