Observations of extensive variability in the ultraviolet spectrum of XI Per

Details Observations of extensive variability in the ultraviolet spectrum of XI Per Observations of extensive variability in the ultraviolet spectrum of XI Per

Jul 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.218..319p&link_type=abstract

In ESA Fourth European IUE Conf. p 319-322 (SEE N84-35135 24-88)

Computer Science

5

Hot Stars, Stellar Mass Ejection, Stellar Spectra, Stellar Winds, Ultraviolet Spectra, Absorption Spectra, Iue, Stellar Models

Scientific paper

High resolution IUE observations of the 07.5 III star xi Per, taken between 1978 and 1984 are presented. The spectra reveal extensive variability in the Si IV resonance line doublet, characterized by shortward displaced narrow absorption components and much broader lower velocity features. Profile fitting is used to estimate central velocities and column densities of these varying features, and the plausibility of the shell ejection model is discussed. The continual presence of narrow absorption implies fairly frequent shell ejection, with subsequent episodes revealing a broad feature eventually narrowing and merging into the high velocity narrow absorption component.

Affiliated with

Also associated with

No associations

Rating

Observations of extensive variability in the ultraviolet spectrum of XI Per 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 Observations of extensive variability in the ultraviolet spectrum of XI Per, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Observations of extensive variability in the ultraviolet spectrum of XI Per will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1705861