Mahavir Sharma, Biman B. Nath, Hum Chand
We report a correlation between velocity offset (beta=v/c) and the bolometric luminosity (L_bol) of quasars for strong MgII absorption systems in SDSS-DR7. We find that, beta shows a power law increase with L_bol, with a slope (~ 1/4). We find that such a relation of beta with L_bol is expected for outflows driven by scattering of black hole radiation by dust grains, and which are launched from the innermost dust survival radius. Hence, our results indicate that a significant fraction of the strong MgII absorbers, in the range of beta = (0--0.4) are associated with the quasars themselves.
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http://arxiv.org/abs/1212.3755
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