COSMOLOGICAL X-RAY SCATTERING FROM INTERGALACTIC DUST
نویسندگان
چکیده
منابع مشابه
Intergalactic dust extinction in hydrodynamic cosmological simulations
Recently Ménard et al. (hereafter MSFR) detected a subtle but systematic change in the mean color of quasars as a function of their projected separation from foreground galaxies, extending to comoving separations of ∼ 10h−1Mpc, which they interpret as a signature of reddening by intergalactic dust. We present theoretical models of this remarkable observation, using smoothed particle hydrodynami...
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— Scattering by dust grains in our Galaxy can produce X–ray halos, visible as expanding rings, around GRBs. This has been observed in three GRBs to date, allowing to derive accurate distances for the dust clouds as well as some constraints on the prompt GRB X–ray emission that was not directly observed. We developed a new analysis method to study dust scattering expanding rings and have applied...
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ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2012
ISSN: 0004-637X,1538-4357
DOI: 10.1088/0004-637x/751/2/93