SIMBAD references

2020ApJS..247...42X - Astrophys. J., Suppl. Ser., 247, 42-42 (2020/April-0)

HST/COS observations of quasar outflows in the 500-1050 Å rest frame. VI. Wide, energetic outflows in SDSS J0755+2306.

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

Abstract (from CDS):

We present the analysis of two outflows (S1 at -5500 km s–1 and S2 at -9700 km s–1) seen in recent Hubble Space Telescope/Cosmic Origins Spectrograph observations of quasar SDSS J0755+2306 (z = 0.854). The outflows are detected as absorption troughs from both high-ionization species, including N III, O III, and S IV, and very high-ionization species, including Ar VIII, Ne VIII, and Na IX. The derived photoionization solutions show that each outflow requires a two ionization-phase solution. For S1, troughs from S IV* and S IV allow us to derive an electron number density, ne = 1.8 x 104 cm–3, and its distance from the central source of R = 270 pc. For S2, troughs from O III* and O III yield ne = 1.2 x 103 cm–3 and R = 1600 pc. The kinetic luminosity of S2 is >12% of the Eddington luminosity for the quasar and, therefore, can provide strong AGN feedback effects. Comparison of absorption troughs from O III and O VI in both outflow systems supports the idea that for a given element, higher-ionization ions have larger covering fractions than lower-ionization ones.

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

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

Simbad objects: 5

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2021.04.20-06:30:10

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