activity
19952023
most citedAtomic Data for Astrophysics. II. New Analytic Fits for Photoionization Cross Sections of Atoms and Ions

2k citations · 10.2k across the 187 of their papers we have counts for

collaborators

186 papers

astro-ph.HE2023

Generation of photoionized plasmas in the laboratory of relevance to accretion-powered x-ray sources using keV line radiation

D. Riley, R. L. Singh, S White +12

We describe laboratory experiments to generate X-ray photoionized plasmas of relevance to accretion-powered X-ray sources such as neutron star binaries and quasars, with significan…

astro-ph.GA2023★ 3 cited

The 2023 release of Cloudy

Marios Chatzikos, Stefano Bianchi, Francesco Camilloni +8

We describe the 2023 release of the spectral synthesis code Cloudy. Since the previous major release, migrations of our online services motivated us to adopt git as our version con…

astro-ph.GA2023

AGN STORM 2: V. Anomalous Behavior of the CIV Light Curve in Mrk 817

Y. Homayouni, Gerard A. Kriss, Gisella De Rosa +49

An intensive reverberation mapping campaign on the Seyfert 1 galaxy Mrk817 using the Cosmic Origins Spectrograph (COS) on the Hubble Space Telescope (HST) revealed significant vari…

astro-ph.GA2023

Revisiting the gas-phase chemical rate coefficients at high temperatures in CLOUDY

Gargi Shaw, Gary Ferland, M. Chatzikos

A two-body gas-phase reaction rate coefficient can be given by the usual Arrhenius-type formula which depends on temperature. The UMIST Database for Astrochemistry is a widely used…

astro-ph.GA2023★ 15 cited

Hidden Cooling Flows in Clusters of Galaxies III: Accretion onto the Central Black Hole

A. C. Fabian, J. S. Sanders, G. J. Ferland +3

Recently, we have uncovered Hidden Cooling Flows (HCF) in the X-ray spectra of the central Brightest Galaxies of 11 clusters, 1 group and 2 elliptical galaxies. Here we report such…

astro-ph.HE2023

AGN STORM 2. IV. Swift X-ray and ultraviolet/optical monitoring of Mrk 817

Edward M. Cackett, Jonathan Gelbord, Aaron J. Barth +48

The AGN STORM 2 campaign is a large, multiwavelength reverberation mapping project designed to trace out the structure of Mrk 817 from the inner accretion disk to the broad emissio…