Far Ultraviolet Spectroscopic Explorer Spectroscopy of the O VI Resonance Doublet in Sand 2 (WO)

Details Far Ultraviolet Spectroscopic Explorer Spectroscopy of the O VI Resonance Doublet in Sand 2 (WO) Far Ultraviolet Spectroscopic Explorer Spectroscopy of the O VI Resonance Doublet in Sand 2 (WO)

Jul 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000apj...538l..51c&link_type=abstract

The Astrophysical Journal, Volume 538, Issue 1, pp. L51-L55.

Astronomy and Astrophysics

Astronomy

24

Stars: Evolution, Stars: Individual: Alphanumeric: Sand 2, Stars: Wolf-Rayet

Scientific paper

We present Far Ultraviolet Spectroscopic Explorer spectroscopy of Sand 2, an LMC WO-type Wolf-Rayet star, revealing the O VI resonance P Cygni doublet at 1032-1038 Å. These data are combined with Hubble Space Telescope Faint Object Spectrograph ultraviolet and Mount Stromlo 2.3 m optical spectroscopy and analyzed using a spherical, non-LTE, line-blanketed code. Our study reveals exceptional stellar parameters: T*~150,000 K, v∞=4100 km s-1, log(L/Lsolar)=5.3, and M=1×10-5 Msolar yr-1, if we adopt a volume filling factor of 10%. Elemental abundances of C/He~0.7+/-0.2 and O/He~0.15+0.10-0.05 by number qualitatively support previous recombination line studies. We confirm that Sand 2 is more chemically enriched in carbon than LMC WC stars and that it is expected to undergo a supernova explosion within the next 5×104 yr.

Affiliated with

Also associated with

No associations

Rating

Far Ultraviolet Spectroscopic Explorer Spectroscopy of the O VI Resonance Doublet in Sand 2 (WO) 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 Far Ultraviolet Spectroscopic Explorer Spectroscopy of the O VI Resonance Doublet in Sand 2 (WO), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Far Ultraviolet Spectroscopic Explorer Spectroscopy of the O VI Resonance Doublet in Sand 2 (WO) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1717910