Other
Scientific paper
Jul 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004hst..prop10318b&link_type=abstract
HST Proposal ID #10318
Other
Hst Proposal Id #10318 Quasar Absorption Lines/Igm
Scientific paper
We propose to analyze the E230M STIS spectra of 9 quasars to derive physical properties of the Lyman alpha forest lines in the redshift range z=0.9 to 1.6. These quasars were originally observed to measure deuterium in metal line systems or to study the detailed kinematics of metal absorption lines systems to compare to ground based studies. To date, no analysis of the Lyman alpha forest has been published for these spectra. We will combine the archive data with data of 7 other quasars we have observed ourselves with the E230M, and two quasars with published line lists, to derive the properties of the IGM. The spectra will be reduced, coadded, continua fit, lines identified and Voigt profiles fit to Lyman alpha forest lines using techniques and code developed for our previous work. The physical characteristics of the final sample will be compared to the expected properties derived from analysis of simulations of the IGM. Comparison between the properties at z~1 and those at higher redshifts accessible from the ground can test whether structure in the Lyman alpha forest is evolving in the manner predicted by gravitational instability theories. We will combine the HST absorption data with deep multiband imaging and galaxy redshifts from ground-based programs underway to study the evolution of the IGM and its relationship to the evolution of star-formation in galaxies.
No associations
LandOfFree
The Legacy HST Data Set of IGM Spectroscopy 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 The Legacy HST Data Set of IGM Spectroscopy, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and The Legacy HST Data Set of IGM Spectroscopy will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1011302