Computer Science
Scientific paper
Feb 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008noao.prop..542k&link_type=abstract
NOAO Proposal ID #2008A-0542
Computer Science
Scientific paper
Absorption lines in quasar spectra offer a powerful tool to study the chemical composition of galaxies and intergalactic matter (IGM). Gravitationally lensed quasars and binary quasars offer a powerful tool to study the internal structure of interstellar material (ISM) in galaxies. binary quasars also offer a probe for studying galaxies and intergalactic matter in high-density regions. Unfortunately, very little information exists on the metal and dust content of absorbers located in front of lensed or binary qusars. We propose to increase the sample of multiply probed absorber galaxies by obtaining spatially resolved medium-resolution, high S/N MMT spectra of 2 to 4 sightlines each through 9 absorbers at 0.6 < z < 1.7. The proposed observations will probe sightlines separated by 5-20 kpc. Our study will increase the sample of strong metal-line absorbers probed along multiple sightlines by a factor of 4. The MMT blue channel spectrograph is essential to obtain the necessary combination of wavelength coverage, S/N, and resolution for detecting the crucial Zn and Cr lines (along with Fe, Ni, Mn etc.) and searching for the 2175 A bump. In several targets, our data will also allow a study of the Lyman-(alpha) forest, and C IV clouds along the sightlines, constraining the spatial distribution of the IGM at 1 < z < 3.
Kulkarni Varsha P.
Meiring Joseph
Som Debopam
No associations
LandOfFree
Absorption Line Spectroscopy of Gravitationally Lensed Quasars and Binary Quasars: Probing the Structure of Interstellar Matter within Distant 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 Absorption Line Spectroscopy of Gravitationally Lensed Quasars and Binary Quasars: Probing the Structure of Interstellar Matter within Distant Galaxies, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Absorption Line Spectroscopy of Gravitationally Lensed Quasars and Binary Quasars: Probing the Structure of Interstellar Matter within Distant Galaxies will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1528859