Astronomy and Astrophysics – Astrophysics
Scientific paper
Jan 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986apj...300..819p&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 300, Jan. 15, 1986, p. 819-823. NASA-supported research.
Astronomy and Astrophysics
Astrophysics
13
Magnetic Stars, White Dwarf Stars, X Ray Sources, X Ray Spectra, Stellar Atmospheres, Stellar Composition, Stellar Spectra, Stellar Temperature
Scientific paper
X-ray emission has been detected from PG 1658 + 441, a hot, isolated, magnetic white dwarf. The source was first detected in an Einstein IPC observation and was later identified in an Exosat channel multiplier array observation. Both imaging observations were motivated by an attempt to find the optical counterpart to the HEAO 1 soft X-ray source H1659 + 44. Spectral analysis, however, indicates that H1659 + 44 and PG 1658 + 441 are unrelated. The broad-band spectrum of this DA white dwarf can be explained as emission from a homogeneous, high-gravity, pure hydrogen atmosphere with a temperature near 28,000 K. The observations of PG 1658 + 441 support the suggestion that a correlation exists between temperature and helium abundance in white dwarf atmospheres.
Giommi Paolo
Marshall Francis E.
Pravdo Steven Howard
White Nicholas E.
No associations
LandOfFree
X-rays from the magnetic white dwarf PG 1658 + 441 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 X-rays from the magnetic white dwarf PG 1658 + 441, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and X-rays from the magnetic white dwarf PG 1658 + 441 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1844652