Dust-to-gas ratio in the z=0.44 lens galaxy B1152+199

Details Dust-to-gas ratio in the z=0.44 lens galaxy B1152+199 Dust-to-gas ratio in the z=0.44 lens galaxy B1152+199

Sep 2004

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004cxo..prop.1813p&link_type=abstract

Chandra Proposal ID #06610871

Physics

Chandra Proposal Id #06610871

Scientific paper

B1152+199 is a unique, X-ray bright gravitational lens system, showing strong optical extinction in one of its images passing through a massive z=0.44 lens galaxy. The system is ideal for obtaining the first accurate measurement of differential X-ray absorption between QSO images, providing a measure of the gas content of the lens galaxy. Using this new method and our extensive VLT mapping of the extinction curve for the lens galaxy, we will obtain a key measurement of the dust-to-gas ratio in a Milky Way like galaxy at z=0.44. This will provide a crucial reference point for studying the properties of the gas supply for star formation in the 0

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