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arXiv · 1212.3755

Signature of outflows in strong MgII absorbers in quasar sightlines

Mahavir Sharma·Biman B. Nath·Hum Chand
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Abstract

We report a correlation between velocity offset (beta = v/c) of strong Mg II absorption systems and the bolometric luminosity (L_bol) of quasars 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. Our results indicate that a significant fraction of the strong MgII absorbers, in the range of beta = (0--0.4) may be associated with the quasars themselves.

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Mahavir Sharma, Biman B. Nath, Hum Chand. 2013-02-01. Signature of outflows in strong MgII absorbers in quasar sightlines. https://doi.org/10.1093/mnrasl%2Fslt015

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