197 citations · 1.7k across the 73 of their papers we have counts for
6 papers · 1 filter
Predictions for the X-ray circumgalactic medium of edge-on discs and spheroids
Anna Nica, Benjamin D. Oppenheimer, Robert A. Crain +5
We investigate how the X-ray circumgalactic medium (CGM) of present-day galaxies depends on galaxy morphology and azimuthal angle using mock observations generated from the EAGLE c…
The AGN Fraction in Dwarf Galaxies from eROSITA: First Results and Future Prospects
Lilikoi J. Latimer, Amy E. Reines, Akos Bogdan +1
Determining the fraction of nearby dwarf galaxies hosting massive black holes (BHs) can inform our understanding of the origin of "seed" black holes at high redshift. Here we searc…
Exploring Gravitationally-Lensed X-ray AGN Behind the RELICS clusters
Akos Bogdan, Orsolya E. Kovacs, Christine Jones +5
Although observations of high-redshift quasars demonstrate that many supermassive black holes (BHs) reached large masses within one billion years after the Big Bang, the origin of…
Principal component analysis of the Chandra ACIS gain
Hans Moritz Günther, Ákos Bogdán, Nick Durham
Up to 2020, the Chandra ACIS gain has been calibrated using the External Calibration Source (ECS). The ECS consists of an Fe-55 radioactive source and is placed in the ACIS housing…
The eROSITA view of the Abell 3391/95 field: The Northern Clump. The largest infalling structure in the longest known gas filament observed with eROSITA, XMM-Newton, and Chandra
Angie Veronica, Yuanyuan Su, Veronica Biffi +18
SRG/eROSITA PV observations revealed the A3391/95 cluster system and the Northern Clump (MCXC J0621.7-5242 galaxy cluster) are aligning along a cosmic filament in soft X-rays, simi…
A Data-driven Approach to X-ray Spectral Fitting: Quasi-Deconvolution
Carter Lee Rhea, Julie Hlavacek-Larrondo, Ralph Kraft +2
X-ray spectral fitting of astronomical sources requires convolving the intrinsic spectrum or model with the instrumental response. Standard forward modeling techniques have proven…