Physics
Scientific paper
Jul 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008hst..prop11541g&link_type=abstract
HST Proposal ID #11541. Cycle 17
Physics
Scientific paper
COS G130M and G160M 20,000 resolution observations will be obtained for 17 QSOs to study cool, warm and hot gas in the cosmic web and in galaxy halos. 5 QSOs with z from 0.177 to 0.574 and sum z = 1.68 will be observed with S/N = 40-50 per resolution element. 12 QSOs with z = 0.286 to 0.669 and sum z = 5.57 will be observed with S/N = 30-40. The observations will allow a wide range of IGM studies including determining the frequency of occurrence of the different types of absorption systems detected, along with studies of the physical conditions and elemental abundances in the different systems. Special emphasis will be given to a study of the properties of highly ionized IGM as traced by O VI, O V, O IV, N V, and C IV. The high S/N of the observations will allow a search for broad Lyman alpha absorption and weak metal line absorption that can be crucial for the evaluation of physical conditions and elemental abundances. Supporting ground based observations will allow studies of the association of the absorbers with galaxy structures along the 17 lines of sight. The overall goal of the program will be to obtain the information that will allow an assessment of the baryonic content of the IGM as revealed by UV and EUV absorption lines seen in the spectra of QSOs.;
No associations
LandOfFree
Cos-Gto Cool, Warm and Hot Gas in the Cosmic Web and in Galaxy Halos 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 Cos-Gto Cool, Warm and Hot Gas in the Cosmic Web and in Galaxy Halos, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cos-Gto Cool, Warm and Hot Gas in the Cosmic Web and in Galaxy Halos will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1320158