Physics
Scientific paper
Jul 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993hst..prop.4453w&link_type=abstract
HST Proposal ID #4453
Physics
Hst Proposal Id #4453
Scientific paper
The chemically peculiar stars of the upper main sequence display a deficiency in their ultraviolet flux relative to normal stars of similar UBV color. The source of this deficiency is as yet unknown, but has been attributed to enhanced line and continuous opacities from overabundant elements, particularly the iron-peak and rare-earths, as well as to abnormal atmospheric structure. High- resolution spectra to be obtained with the GHRS will determine the extent to which line opacity contributes to the flux deficiency. The superior spectral resolution of the GHRS will enable individual atomic transitions to be resolved. The role of weak lines and over-abundant species, in particular the rare-earth and very heavy elements, in the flux deficiency will be defined using spectral regions known to display absorption features specific to stars of the Ap(SrCrEu), Bp(HgMn), and Am chemical anomaly classes.
No associations
LandOfFree
Probing the UV Flux Deficiency in Chemically Peculiar Stars of the Upper Main Sequence CYC3SUPP 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 Probing the UV Flux Deficiency in Chemically Peculiar Stars of the Upper Main Sequence CYC3SUPP, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Probing the UV Flux Deficiency in Chemically Peculiar Stars of the Upper Main Sequence CYC3SUPP will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1071401