Metallicity Estimation in the Rest Frame UV: A Diagnostic for High Redshift Galaxies

Other

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

Scientific paper

The bulk of the information we have about galaxies at high redshift comes from observations at rest frame ultraviolet wavelengths. We exploit the diagnostic power of this rich spectral region in order to obtain empirical estimates of metallicity. We have compiled a sample of nearby starburst galaxies with optically derived metallicities and high quality FOS, GHRS, or STIS spectra available in the HST archive. From this data, we construct template spectra spanning a range in metallicity from 1/10 to 2 times solar. We find a high degree of correlation between UV spectral morphology and metallicity in that more metal rich galaxies have broader SIV and CIV stellar wind lines, stronger interstellar features, and more pronounced line blanketing by weak photospheric features. Our template spectra provide useful benchmarks for comparison with the rest frame UV spectra of high redshift galaxies for which metallicities are otherwise difficult to obtain.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Metallicity Estimation in the Rest Frame UV: A Diagnostic for High Redshift Galaxies 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 Metallicity Estimation in the Rest Frame UV: A Diagnostic for High Redshift Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metallicity Estimation in the Rest Frame UV: A Diagnostic for High Redshift Galaxies will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1727330

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.