Computer Science – Sound
Scientific paper
Apr 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990apj...353..612g&link_type=abstract
Astrophysical Journal, Part 1 (ISSN 0004-637X), vol. 353, April 20, 1990, p. 612-616.
Computer Science
Sound
3
Emission Spectra, Photosphere, Stellar Spectra, White Dwarf Stars, Line Spectra, Rocket Sounding, Spectrum Analysis, Ultraviolet Spectra
Scientific paper
A possible spectral emission feature is reported in the direction of the nearby hot white dwarf G191-B2B at 581.5 + or - 6 A with a significance of 3.8 sigma. This emission has been identified as He I 584.3 A. The emission cannot be due to local geocoronal emission or interplanetary backscatter of solar He I 584 A emission because the feature is not detected in a nearby sky exposure. Possible sources for this emission are examined, including the photosphere of G191-B2B, the comparison star G191-B2A, and a possible nebulosity near or around G191-B2B. The parameters required to explain the emission are derived for each case. All of these explanations require unexpected physical conditions; hence we believe this result must receive confirming verification despite the statistical likelihood of the detection.
Bowyer Stuart
Green Jeremy
Jelinsky Patrick
No associations
LandOfFree
Possible detection of an emission feature near 584 A in the direction of G191-B2B 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 Possible detection of an emission feature near 584 A in the direction of G191-B2B, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Possible detection of an emission feature near 584 A in the direction of G191-B2B will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1380197