Astronomy and Astrophysics – Astrophysics
Scientific paper
Jul 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983a%26a...124...99g&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 124, no. 1, July 1983, p. 99-102.
Astronomy and Astrophysics
Astrophysics
21
Deuterium, Hydrogen Clouds, Interstellar Matter, Lyman Spectra, Stellar Winds, Periodic Variations, Photosphere, Star Clusters
Scientific paper
The idea that the observed deuterium abundance toward Epsilon Persei is caused by blending of the D I Lyman lines by H I lines due to high velocity gas varying with time is directly checked by separating the Copernicus data for each line in successive sets. Four possible explanations of the time fluctuations observed in the Lyman spectra are considered: statistical fluctuations, instrumental effects, the data correction process, and variations in the Lyman profiles. The first three of these are ruled out, and all the varying features are confirmed as H I components. The fact that these components vary within hours shows that they are located on the stellar wind and/or near the stellar surface. Profile fits show them to have a column density of a few 10 to the 14th per square cm.
Gry Cecile
Laurent Camille
Vidal-Madjar Alfred
No associations
LandOfFree
Evidence of hourly variations in the deuterium Lyman line profiles toward Epsilon Persei 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 Evidence of hourly variations in the deuterium Lyman line profiles toward Epsilon Persei, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Evidence of hourly variations in the deuterium Lyman line profiles toward Epsilon Persei will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1626437