Lyman-Alpha Observations of High Radial Velocity Stars

Details Lyman-Alpha Observations of High Radial Velocity Stars Lyman-Alpha Observations of High Radial Velocity Stars

Jul 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991hst..prop.2238b&link_type=abstract

HST Proposal ID #2238

Other

Hst Proposal Id #2238

Scientific paper

H I LYMAN -ALPHA (LY-A) IS ONE OF THE MOST IMPORTANT LINES EMITTED BY PLASMA IN THE TEMPERATURE RANGE OF 7000 TO 10 TO THE FIFTH POWER K IN LATE-TYPE STARS. IT IS A MAJOR COMPONENT OF THE TOTAL RADIATIVE LOSS RATE, AND IT PLAYS A CRUCIAL ROLE IN DETERMINING THE ATMOSPHERIC STRUCTURE AND IN FLUORESCING OTHER UV LINES. YET IT IS ALSO THE LEAST STUDIED MAJOR LINE IN THE FAR UV, BECAUSE MOST OF THE LINE FLUX IS ABSORBED BY THE ISM ALONG THE LINE OF SIGHT AND BECAUSE IT IS STRONGLY COMTAMINATED BY THE GEOCORONAL BACKGROUND. A KNOWLEDGE OF THE Ly-A PROFILE IS ALSO IMPORTANT FOR STUDIES OF DEUTERIUM IN THE INTERSTELLAR MEDIUM. BY OBSERVING HIGH RADIAL VELOCITY STARS WE WILL OBTAIN FOR THE FIRST TIME HIGH RESOLUTION SPECTRA OF THE CORE OF A STELLAR H I LYMAN-A EMISSION LINE PROFILE.

Affiliated with

Also associated with

No associations

Rating

Lyman-Alpha Observations of High Radial Velocity Stars 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 Lyman-Alpha Observations of High Radial Velocity Stars, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Lyman-Alpha Observations of High Radial Velocity Stars will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-862424