Constraining the Age of a z=6.40 Quasar with FeII Emission

Details Constraining the Age of a z=6.40 Quasar with FeII Emission Constraining the Age of a z=6.40 Quasar with FeII Emission

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003noao.prop...98f&link_type=abstract

NOAO Proposal ID #2003A-0098

Mathematics

Logic

Scientific paper

Abundances of heavy elements in the quasar environment provide unique probes of high-redshift star and galaxy formation. Since most Iron is produced by Type Ia supernovae at least 1 Gyr after the initial starburst, the Fe/(alpha) element ratio can be used as a ``clock'' to measure the age of the quasar host system at high redshift. We propose to obtain a high S/N, low resolution near-IR spectrum of SDSS 1148+5251, the highest redshift quasar known at z=6.40, whose MgII line and 2960AFeII complex are well positioned in the K-band and allow accurate measurement of the FeII/MgII ratio. The z=6.40 results will be compared with low-redshift results to study the evolution of Iron abundance with redshift, to estimate the epoch and character of the earliest metal enrichment in dense environments, and to put strong constraints on the age of the universe at z=6.40 and the allowed cosmological parameters.

Affiliated with

Also associated with

No associations

Rating

Constraining the Age of a z=6.40 Quasar with FeII Emission 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 Constraining the Age of a z=6.40 Quasar with FeII Emission, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Constraining the Age of a z=6.40 Quasar with FeII Emission will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-912134