Unlocking Line-Locking Phenomena in Quasars

by Prof. Doron Chelouche

University of Haifa

at Astrophysics and Cosmology Seminar

Wed, 14 Jun 2023, 11:10
Nano building (51) auditorium

Abstract

Line locking of absorption-line systems in quasar spectra is a clear signature of the dynamical importance of radiation pressure force in driving astrophysical flows, with recent findings suggesting that it may be common in objects exhibiting multiple absorption-line systems. In this talk, the phenomena of line-locking will be reviewed, and the physical implications for quasar outflows outlined. Specifically, it will be shown that line-locked systems pose significant challenges to current theories of quasar outflows with implications for the physical mechanisms underlying cloud formation and confinement in the interstellar medium of (active) galaxies.

Created on 08-06-2023 by Zitrin, Adi (zitrin)
Updaded on 13-06-2023 by Zitrin, Adi (zitrin)