Ionized outflows in SDSS type 2 quasars at z~0.3-0.6

Details Ionized outflows in SDSS type 2 quasars at z~0.3-0.6 Ionized outflows in SDSS type 2 quasars at z~0.3-0.6

2011-08-11

arxiv.org/abs/1108.2392v1

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

Accepted for publication in MNRAS. 12 pages, 18 figures

Scientific paper

We have analyzed the spatially integrated kinematic properties of the ionized gas within the inner r~2). While the quiescent gas shows small or null velocity shifts relative to the systemic velocity, the highly perturbed gas trends to show larger shifts which, moreover, are blueshifts in general. Within a given object, the most perturbed gas trends to have the largest blueshift as well. All together support that the perturbed gas, which is responsible for the blue asymmetries of the line profiles, is outflowing. Although some bias affects the sample, we argue that ionized gas outflows are a common phenomenon in optically selected type 2 quasars at 0.3< z < 0.6.

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