197 citations · 1.7k across the 73 of their papers we have counts for
8 papers · 1 filter
X-raying CAMELS: Constraining Baryonic Feedback in the Circum-Galactic Medium with the CAMELS simulations and eRASS X-ray Observations
Erwin T. Lau, Daisuke Nagai, Ákos Bogdán +7
The circumgalactic medium (CGM) around massive galaxies plays a crucial role in regulating star formation and feedback. Using the CAMELS simulation suite, we develop emulators for…
Cosmology and Astrophysics with the Diffuse eRASS1 X-ray Angular Power Spectrum
Erwin T. Lau, Ákos Bogdán, Daisuke Nagai +2
The recent tension in the value of the cosmological parameter , which represents the amplitude of the matter density fluctuations of the universe, ha…
Deconvolving X-ray Galaxy Cluster Spectra Using a Recurrent Inference Machine
Carter Rhea, Julie Hlavacek-Larrondo, Alexandre Adam +4
Recent advances in machine learning algorithms have unlocked new insights in observational astronomy by allowing astronomers to probe new frontiers. In this article, we present a m…
A Deeper Look into eFEDS AGN Candidates in Dwarf Galaxies with Chandra
Adonis A. Sanchez, Amy E. Reines, Akos Bogdan +1
The ability to accurately discern active massive black holes (BHs) in nearby dwarf galaxies is paramount to understanding the origins and processes of "seed" BHs in the early Unive…
Active Galaxy Science with the Line Emission Mapper: The Case for High-Resolution Soft X-ray Spectroscopy
Kimberly A. Weaver, Jenna M. Cann, Ryan W. Pfeifle +11
This white paper discusses the breadth of science related to active galactic nuclei (AGN) and associated phenomena to be enabled by a mission with microcalorimeter energy resolutio…
X-Ray Bright Active Galactic Nuclei in Local Dwarf Galaxies: Insights from eROSITA
Andrea Sacchi, Akos Bogdan, Urmila Chadayammuri +1
Although supermassive black holes (SMBHs) reside in the heart of virtually every massive galaxy, it remains debated whether dwarf galaxies commonly host SMBHs. Because low-mass gal…
X-ray View of Little Red Dots: Do They Host Supermassive Black Holes?
Tonima Tasnim Ananna, Ákos Bogdán, Orsolya E. Kovács +2
The discovery of Little Red Dots (LRDs) -- a population of compact, high-redshift, dust-reddened galaxies -- is one of the most surprising results from JWST. However, the nature of…
A candidate supermassive black hole in a gravitationally-lensed galaxy at
Orsolya E. Kovacs, Akos Bogdan, Priyamvada Natarajan +8
While supermassive black holes (BHs) are widely observed in the nearby and distant universe, their origin remains debated with two viable formation scenarios with light and heavy s…