SIMBAD references

2020ApJS..247...41M - Astrophys. J., Suppl. Ser., 247, 41-41 (2020/April-0)

HST/COS observations of quasar outflows in the 500-1050 Å rest frame. V. Richness of physical diagnostics and ionization potential-dependent velocity shift in PKS J0352-0711.

MILLER T.R., ARAV N., XU X., KRISS G.A. and PLESHA R.J.

Abstract (from CDS):

We analyze absorption troughs from two outflows within PKS J0352-0711 (S1 at -1950 km s–1 and S2 at -3150 km s–1) from spectra taken with Hubble Space Telescope/Cosmic Origins Spectrograph, which cover the diagnostic-rich 585-900 Å rest-frame wavelength range. In S2, for the first time we clearly detect absorption troughs from Ca IV, Ca V, Ca V*, Ca VII*, and Ca VIII*. The column density measurement of Ca V suggests S2 has a super-solar metallicity. Both outflows require at least two ionization phases where the column density of the very high-ionization phase is roughly 15 times larger than the corresponding high-ionization phase. These high column densities and very high-ionization potential ions are similar to X-ray warm absorbers. The two phases of S2 show a unique velocity centroid shift between associated troughs. Through Monte Carlo measurements of the O V* absorption troughs, we determine the electron number density of S2 (fully corroborated by independent measurements from the Ca VII* and Ca VIII* troughs), yielding a distance of 9 pc and a kinetic luminosity of 2 x 1043 erg s–1. S1 is located farther away at 500 pc from the central source with a kinetic luminosity of 1043 erg s–1.

Abstract Copyright: © 2020. The American Astronomical Society. All rights reserved.

Journal keyword(s): Active galactic nuclei - Active galaxies - Broad-absorption line quasar - Quasar absorption line spectroscopy - Quasars - AGN host galaxies

Simbad objects: 5

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