66 citations · 280 across the 10 of their papers we have counts for
10 papers
Accretion and star formation in 'radio-quiet' quasars
Sarah V. White, Matt J. Jarvis, Eleni Kalfountzou +4
Radio observations allow us to identify a wide range of active galactic nuclei (AGN), which play a significant role in the evolution of galaxies. Amongst AGN at low radio-luminosit…
CIELO-RGS: a catalogue of soft X-ray ionized emission lines
Junjie Mao, J. S. Kaastra, M. Guainazzi +9
High-resolution X-ray spectroscopy has advanced our understanding of the hot Universe by revealing physical properties like kinematics, temperature, and abundances of the astrophys…
A high velocity component to the complex absorption in IRAS 13349+2438
M. L. Parker, G. A. Matzeu, M. Guainazzi +4
We present an analysis of XMM-Newton spectra of the low-redshift quasar IRAS 13349+2438. The RGS spectrum shows a large number of absorption lines from two zones of warm absorption…
SDSS J1056+5516: A Triple AGN or an SMBH Recoil Candidate?
Eleni Kalfountzou, M. Santos Lleo, M. Trichas
We report the discovery of a kiloparsec-scale triple supermassive black hole system at : SDSS J1056+5516, discovered by our systematic search for binary quasars. The syste…
Observational evidence that positive and negative AGN feedback depends on galaxy mass and jet power
E. Kalfountzou, J. A. Stevens, M. J. Jarvis +6
Several studies support the existence of a link between the AGN and star formation activity. Radio jets have been argued to be an ideal mechanism for direct interaction between the…
Evidence that the AGN dominates the radio emission in z ~ 1 radio-quiet quasars
Sarah V. White, Matt J. Jarvis, Eleni Kalfountzou +4
In order to understand the role of radio-quiet quasars (RQQs) in galaxy evolution, we must determine the relative levels of accretion and star-formation activity within these objec…