3 papers
astro-ph.GA2026
Studying the absorption signatures of H I Lyman-α in the warm-hot circumgalactic medium with TNG50
P. Aparicio Marcos, P. Richter, M. Sparre +2
In this study, we investigate the spectral signatures of neutral hydrogen Lyman- absorption arising from the warm-hot gas component of the circumgalactic medium (CGM) around $z=…
astro-ph.GA2025
Studying the gaseous outskirts of galaxy groups with coherent Ly alpha absorption patterns
P. Richter, J. C. Charlton, A. J. Fox +2
In this study, we explore the properties of diffuse intergalactic gas residing in the outskirts of the four nearby, low-mass galaxy groups NGC1052, NGC5866, NGC4631, and NGC3992 (a…
astro-ph.GA2018
Circumgalactic gas at its extreme: tidal gas streams around the Whale galaxy NGC 4631 explored with HST/COS
P. Richter, B. Winkel, B. P. Wakker +8
We present a detailed analysis of the absorption properties of one of the tidal gas streams around the Whale galaxy NGC4631 in the direction of the quasar 2MASSJ12421031+3214268. O…