Work

Quasar-mode Feedback in Nearby Type 1 Quasars: Ubiquitous Kiloparsec-scale Outflows and Correlations with Black Hole Properties

Year: 2017

Type: article

Abstract: The prevalence and properties of kiloparsec-scale outflows in nearby Type 1 quasars have been the subject of little previous attention. This work presents Gemini integral field spectroscopy of 10 Type 1 radio-quiet quasars at . The excellent image quality, coupled with a new technique to remove the point-spread function using spectral information, allows the fitting of the underlying host on a spaxel-by-spaxel basis. Fits to stars, line-emitting gas, and interstellar absorption show that 100% of the sample hosts warm ionized and/or cool neutral outflows with spatially averaged velocities ( ) of 200–1300 and peak velocities (maximum ) of 500–2600 . These minor-axis outflows are powered primarily by the central active galactic nucleus, reach scales of 3–12 kpc, and often fill the field of view. Including molecular data and Type 2 quasar measurements, nearby quasars show a wide range in mass outflow rates ( to ) and momentum boosts ]. After extending the mass scale to Seyferts, dM / dt and dE / dt correlate with black hole mass ( and ). Thus, the most massive black holes in the local universe power the most massive and energetic quasar-mode winds.

Source: The Astrophysical Journal

DOI: 10.3847/1538-4357/aa94d1

Authors: David S. N. Rupke, Kayhan Gültekin, Sylvain Veilleux

Institutions: Rhodes College, Australian National University, University of Michigan, Joint Space Science Institute, University of Maryland, College Park

Language: English

Topic: Galaxies: Formation, Evolution, Phenomena

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: bronze