130 citations · 412 across the 24 of their papers we have counts for
6 papers · 1 filter
Constraints from dwarf galaxies on black hole seeding and growth models with current and future surveys
Urmila Chadayammuri, Akos Bogdan, Angelo Ricarte +1
Dwarf galaxies are promising test beds for constraining models of supermassive and intermediate-mass black holes (MBH) via their black hole occupation fraction (BHOF). Disentanglin…
Weak-lensing mass bias in merging galaxy clusters
Wonki Lee, Sangjun Cha, M. James Jee +6
Although weak lensing (WL) is a powerful method to estimate a galaxy cluster mass without any dynamical assumptions, a model bias can arise when the cluster density profile departs…
The structure of cluster merger shocks: turbulent width and the electron heating timescale
H. R. Russell, P. E. J. Nulsen, D. Caprioli +10
We present a new 2 Ms Chandra observation of the cluster merger Abell 2146, which hosts two huge M~2 shock fronts each ~500 kpc across. For the first time, we resolve and measure t…
The X-ray Angular Power Spectrum of Extended Sources in the eROSITA Final Equatorial Depth Survey
Erwin T. Lau, Akos Bogdan, Urmila Chadayammuri +3
The eROSITA Final Equatorial Depth Survey (eFEDS), with a sky area of 140 square degrees with depth equivalent to the equatorial patch of the final eROSITA all-sky survey, represen…
Testing galaxy feedback models with the first resolved profiles of the circumgalactic medium
Urmila Chadayammuri, Akos Bogdan, Benjamin Oppenheimer +3
The hot ( K) phase of the circumgalactic medium (CGM) contains a large fraction of baryons in galaxies. It also retains signatures of the processes that shaped the galaxies,…
Turbulent magnetic fields in merging clusters: A case study of Abell 2146
Urmila Chadayammuri, John ZuHone, Paul Nulsen +2
Kelvin-Helmholtz Instabilities (KHI) along contact discontinuities in galaxy clusters have been used to constrain the strength of magnetic fields in galaxy clusters, following the…