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A SN Ia Near a Globular Cluster in the Early-Type Galaxy NGC 5353
Joel N. Bregman, Oleg Y. Gnedin, Patrick O. Seitzer +1
No progenitor of a Type Ia supernova is known, but in old population early-type galaxies, one may find SN Ia associated with globular clusters, yielding a population age and metall…
Millisecond pulsars and the gamma-ray excess in Andromeda
Giacomo Fragione, Fabio Antonini, Oleg Y. Gnedin
The Fermi Gamma-Ray Space Telescope has provided evidence for diffuse gamma-ray emission in the central parts of the Milky Way and the Andromeda galaxy. This excess has been interp…
AGN Activity in Nucleated Galaxies as Measured by Chandra
Adi Foord, Elena Gallo, Edmund Hodges-Kluck +4
Motivated by theoretical expectations that Nuclear Star Clusters (NSCs) in galactic centers may provide a favorable environment for super-massive black holes to form and/or efficie…