Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aas...195.5008p&link_type=abstract
American Astronomical Society, 195th AAS Meeting, #50.08; Bulletin of the American Astronomical Society, Vol. 31, p.1448
Astronomy and Astrophysics
Astronomy
Scientific paper
We have used archival International Ultraviolet Explorer (IUE) high-dispersion SWP spectra to study the B 3 resonance line at 2065.8 Angstroms in 44 early-B stars. We find a median boron abundance about half that of solar system meteoritic material, consistent with the values found from high S/N GHRS echelle observations of two of the stars in our sample (Proffitt et al. 1999). However, about one third of the stars studied have boron abundances that are a factor of four or more lower than this median, suggesting that envelope mixing deep enough to destroy boron is common. We compare our results to previous determinations of boron abundances in Pop. I stars and discuss the implications of our data for non-LTE calculations of boron line formation, the modeling of stellar boron destruction, theories of boron synthesis, and the limits on any intrinsic dispersion in the initial boron abundances of Pop. I stars. This research was supported by NASA grants NAG 5-3487 and HST GO-6644.01-95A.
Proffitt Charles R.
Quigley Mark F.
No associations
LandOfFree
Boron Abundances in Early-B Stars: The B 3 2065.8 Angstroms Line in IUE Data. 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 Boron Abundances in Early-B Stars: The B 3 2065.8 Angstroms Line in IUE Data., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Boron Abundances in Early-B Stars: The B 3 2065.8 Angstroms Line in IUE Data. will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1740495