A Search for X-ray Scattering by Intergalactic Dust

Details A Search for X-ray Scattering by Intergalactic Dust A Search for X-ray Scattering by Intergalactic Dust

Dec 2002

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002aas...201.7912t&link_type=abstract

American Astronomical Society, 201st AAS Meeting, #79.12; Bulletin of the American Astronomical Society, Vol. 34, p.1235

Astronomy and Astrophysics

Astronomy

2

Scientific paper

We present the results of a search for an X-ray scattering halo around the bright, distant quasar QSO1508+5714 (z=4.30) in a deep observation with Chandra. We set an upper limit to the density of grey, smoothly distributed intergalactic dust. The limit rules out an explanation of the SN Ia Hubble Diagram purely in terms of intergalactic extinction, and may put constraints on the cosmic dust production and dispersal rates.

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