no code implementations • 19 Feb 2021 • Volker Heesen, Marcus Brüggen
In their recent paper, Chan and Lee discuss an interesting possibility: radio continuum emission from a dwarf irregular galaxy may be used to constrain upper limits on the cross section of annihilating dark matter.
Astrophysics of Galaxies
no code implementations • 14 Jan 2021 • Julien Wolf, Kirpal Nandra, Mara Salvato, Teng Liu, Johannes Buchner, Marcella Brusa, Duy N. Hoang, Vanessa Moss, Riccardo Arcodia, Marcus Brüggen, Johan Comparat, Francesco de Gasperin, Antonis Georgakakis, Aidan Hotan, Georg Lamer, Andrea Merloni, Arne Rau, Huub J. A. Rottgering, Timothy W. Shimwell, Tanya Urrutia, Matthew Whiting, Wendy L. Williams
We report the X-ray detection of an eROSITA source securely matched to the well-known quasar SDSS J083643. 85+005453. 3 (z=5. 81).
Astrophysics of Galaxies High Energy Astrophysical Phenomena
no code implementations • 22 Apr 2020 • Nicola T. Locatelli, Kamlesh Rajpurohit, Franco Vazza, Fabio Gastaldello, Daniele Dallacasa, Annalisa Bonafede, Mariachiara Rossetti, Chiara Stuardi, Etienne Bonassieux, Gianfranco Brunetti, Marcus Brüggen, Timothy Shimwell
The case of acceleration is challenged by the low predicted efficiency of low-Mach number merger shocks, unable to explain the power observed in most radio relics.
High Energy Astrophysical Phenomena Cosmology and Nongalactic Astrophysics
