Dust-to-gas Ratio of High Redshift Galaxies

Details Dust-to-gas Ratio of High Redshift Galaxies Dust-to-gas Ratio of High Redshift Galaxies

Sep 2007

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007cxo..prop.2467d&link_type=abstract

Chandra Proposal ID #09610464

Mathematics

Logic

Chandra Proposal Id #09610464

Scientific paper

We propose to observe the differential X-ray absorption in three gravitational lenses with significant optical extinctions. By combining the X-ray and optical differential absorption measurements, we will accurately measure the dust-to-gas ratio of the three cosmologically distant galaxies. Combining these new measurements with earlier measurements, we will test whether the dust-to-gas ratio evolves with redshift as predicted by simulations of dust formation and evolution. Such information is to understanding galaxy and star formation and evolution in the presence of an absorbing ISM.

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