Insights Into The Enrichment Of The Intergalactic Medium From SDSS

Details Insights Into The Enrichment Of The Intergalactic Medium From SDSS Insights Into The Enrichment Of The Intergalactic Medium From SDSS

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010aas...21560303p&link_type=abstract

American Astronomical Society, AAS Meeting #215, #603.03; Bulletin of the American Astronomical Society, Vol. 36, p.1125

Astronomy and Astrophysics

Astronomy

Scientific paper

Mechanical feedback is a crucial component of our understanding of galaxy formation and evolution. Metals in the Intergalactic Medium (IGM) provide a valuable tracer of this feedback and are easiest to observe in the Lyman alpha forest at 2We have used new pixel correlation techniques to place constraints on Omega_oxygen at precision comparable with a large sample of high resolution spectra. Data of this nature and quantity also allow us to produce a completely new observable: a restframe spectrum of Lyman alpha absorbers. Not only is this spectrum a novel window on the IGM, it reveals as yet unseen species in the IGM. These metal lines represent a potential contaminant to the BOSS baryon acoustic oscillation (BAO) measurement and so these results will be crucial for a reliable measurement of BAO in the Lyman alpha forest. BOSS spectra will provide a boost in the precision of these measurements.

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