Astronomy and Astrophysics – Astrophysics
Scientific paper
Dec 1991
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991a%26a...252..693s&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 252, no. 2, Dec. 1991, p. 693-700.
Astronomy and Astrophysics
Astrophysics
18
Early Stars, Magellanic Clouds, Stellar Luminosity, Stellar Winds, Supergiant Stars, Iron, Iue, Stellar Mass, Telescopes, Variable Stars
Scientific paper
The visually bright objects from the Magellanic Clouds are examined in terms of observed properties that indicate properties relevant to the stellar wind. IUE observations are accomplished in the long-wavelength primary echelle mode in the optical wavelength near H-alpha of the objects HD 33579 and HD 7583. The Fe-II lines are found to have widths that are dependent upon log gf and the excitation potential; these dependencies relate to an accelerated wind that is directed outwards. The terminal velocity is found to be approximately equal to 200 km/s for both stars as evinced by the strong Fe-II lines. A flat velocity law is determined and a mass-loss rate of 2 x 10 exp 6 solar mass/yr is given for both of the stars. The wind properties of the A-types are concluded to relate to a uniform acceleration mechanism.
Aab O.
Smolinski Jason
Stahl Otmar
Wolf Bernd
No associations
LandOfFree
Stellar wind properties of A-type hypergiants 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 Stellar wind properties of A-type hypergiants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Stellar wind properties of A-type hypergiants will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1536115