activity
20122023
most citedLine-driven Disk Winds in Active Galactic Nuclei: The Critical Importance of Ionization and Radiative Transfer

120 citations · 1.5k across the 48 of their papers we have counts for

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14 papers · 1 filter

astro-ph.GA2023★ 22 cited

A disc wind model for blueshifts in quasar broad emission lines

James H. Matthews, Jago Strong-Wright, Christian Knigge +7

Blueshifts - or, more accurately, blue asymmetries - in broad emission lines such as CIV 1550 are common in luminous quasars and correlate with fundamental properties such as Ed…

astro-ph.GA2023★ 13 cited

No redshift evolution in the rest-frame UV emission line properties of quasars from z=1.5 to z=4.0

Matthew Stepney, Manda Banerji, Paul C. Hewett +4

We analyse the rest-frame UV spectra of 2,531 high-redshift (3.5<z<4.0) quasars from the Sloan Digital Sky Survey DR16Q catalogue. In combination with previous work, we study the r…

astro-ph.GA2023★ 49 cited

Testing AGN outflow and accretion models with CIV and HeII emission line demographics in z=2 quasars

Matthew J. Temple, James H. Matthews, Paul C. Hewett +6

Using 190,000 spectra from the seventeenth data release of the Sloan Digital Sky Survey, we investigate the ultraviolet emission line properties in z=2 quasars. Specifically, we qu…

astro-ph.GA2022★ 19 cited

Connecting radio emission to AGN wind properties with Broad Absorption Line Quasars

J. W. Petley, L. K. Morabito, D. M. Alexander +6

Broad Absorption Line Quasars (BALQSOs) show strong signatures of powerful outflows, with the potential to alter the cosmic history of their host galaxies. These signatures are onl…

astro-ph.GA2021★ 4 cited

Probing the Wind Component of Radio Emission in Luminous High-Redshift Quasars

Gordon T. Richards, Trevor V. McCaffrey, Amy Kimball +4

We discuss a probe of the contribution of wind-related shocks to the radio emission in otherwise radio-quiet quasars. Given 1) the non-linear correlation between UV and X-ray lumin…

astro-ph.GA2021★ 19 cited

Placing LOFAR-detected quasars in CIV emission space: implications for winds, jets and star formation

Amy L. Rankine, James H. Matthews, Paul C. Hewett +3

We present an investigation of the low-frequency radio and ultraviolet properties of a sample of 10,500 quasars from the Sloan Digital Sky Survey Data Release 14, observed…