Mathematics – Logic
Scientific paper
Jul 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004hst..prop10308d&link_type=abstract
HST Proposal ID #10308
Mathematics
Logic
Hst Proposal Id #10308 Cosmology
Scientific paper
I propose to establish SLACR, the Simulation Lyman Alpha Comparison Repository. SLACR is a publically-accessible full-service website containing the data and software tools necessary to generate and analyze artificial Lyman alpha forest spectra drawn from state-of-the-art cosmological hydrodynamic simulations. These artificial spectra can be analyzed alongside ultraviolet quasar and AGN spectra taken using e.g. HST/STIS, in order to {1} Test current theories of the IGM; {2} Constrain the physical state of absorbing gas seen in quasar spectra; {3} Assess biases and uncertainties due to sample incompleteness, continuum fitting, and Voigt profile fitting; {4} Constrain physical and cosmological parameters of the IGM from absorption line data; and {5} Study the relationship between IGM absorbers and large-scale structure as traced by galaxies. SLACR will be an invaluable model comparison and data interpretation tool for HST observers studying the Lyman alpha forest, associated metal absorption systems, "missing baryons" and the warm-hot intergalactic medium, and galaxy-absorber correlations.
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