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Chandra Detection of a Parsec Scale Wind in the Broad Line Radio Galaxy 3C 382We present unambiguous evidence for a parsec scale wind in the Broad-Line Radio Galaxy (BLRG) 3C 382, the first radio-loud AGN whereby an outflow has been measured with X-ray grating spectroscopy. A 118 ks Chandra grating (HETG) observation of 3C 382 has revealed the presence of several high ionization absorption lines in the soft X-ray band, from Fe, Ne, Mg and Si. The absorption lines are blue-shifted with respect to the systemic velocity of 3C 382 by -840+/-60 km/s and are resolved by Chandra with a velocity width of sigma = 340+/-70 km/s. The outflow appears to originate from a single zone of gas of column density N(sub H) = 1.3 x 10(exp 21)/sq cm and ionization parameter log(E/erg/cm/s) = 2.45. From the above measurements we calculate that the outflow is observed on parsec scales, within the likely range from 10-1000 pc, i.e., consistent with an origin in the Narrow Line Region. Finally we also discuss the possibility of a much faster (0.1c) outflow component, based on a blue-shifted iron K(alpha) emission line in the Suzaku observation of 3C 382, which could have an origin in an accretion disk wind.
Document ID
20090032026
Acquisition Source
Goddard Space Flight Center
Document Type
Preprint (Draft being sent to journal)
Authors
Reeves, J. N. (Keele Univ. United Kingdom)
Sambruna, R. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Braito, V. (Leicester Univ. United Kingdom)
Eracleous, Michael (Pennsylvania State Univ. University Park, PA, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2009
Subject Category
Astrophysics
Distribution Limits
Public
Copyright
Public Use Permitted.

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