Effects of Spot Structure of Lines of Rare Earths and Non-LTE Effects on Lithium Abundance Estimates for Two roAp Stars

Details Effects of Spot Structure of Lines of Rare Earths and Non-LTE Effects on Lithium Abundance Estimates for Two roAp Stars Effects of Spot Structure of Lines of Rare Earths and Non-LTE Effects on Lithium Abundance Estimates for Two roAp Stars

Jan 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002arep...46...27m&link_type=abstract

Astronomy Reports, Volume 46, Issue 1, January 2002, pp.27-33

Astronomy and Astrophysics

Astronomy

Scientific paper

Taking into account blending of the lithium 6108 Å line profile by adjacent rare-earth lines together with their spotted surface structure does not appreciably affect lithium abundance estimates for the atmospheres of HD 83368 and HD 60435 but provides a better fit of the observed and stimulated line profiles. Our computed non-LTE corrections reduce the lithium abundance estimates by 0.1 0.2 dex for both stars. Given the uncertainties in the lithium abundances, it is not possible to be certain whether the lithium abundances in roAp stars, or at least in their spots, exceed the cosmic (primordial) value.

Affiliated with

Also associated with

No associations

Rating

Effects of Spot Structure of Lines of Rare Earths and Non-LTE Effects on Lithium Abundance Estimates for Two roAp Stars 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 Effects of Spot Structure of Lines of Rare Earths and Non-LTE Effects on Lithium Abundance Estimates for Two roAp Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Effects of Spot Structure of Lines of Rare Earths and Non-LTE Effects on Lithium Abundance Estimates for Two roAp Stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1087338