477 citations · 821 across the 16 of their papers we have counts for
4 papers · 1 filter
Comparing X-ray color selection in separating X-ray binary classes using Color-Color-Intensity diagrams
Nazma Islam, S. D. Vrtilek, Bram Boroson +13
X-ray binaries exhibit a wide range of properties but there are few accepted methods to determine the nature of the compact object. Color-Color-Intensity diagrams have been suggest…
The radial distribution of X-ray Binaries and Globular Clusters in NGC 4649 and their relation with the local stellar mass density
S. Mineo, G. Fabbiano, R. D'Abrusco +7
We investigate the radial distribution of the low-mass X-ray binary (LMXB) population in the elliptical galaxy NGC 4649, using Chandra and Hubble data to separate the field and glo…
A variable ultraluminous X-ray source in a globular cluster in NGC 4649
T. P. Roberts, G. Fabbiano, B. Luo +9
We report the discovery of a new ultraluminous X-ray source (ULX) associated with a globular cluster in the elliptical galaxy NGC 4649. The X-ray source was initially detected with…
On the origin of the metallicity dependence in dynamically formed extragalactic low-mass X-ray binaries
N. Ivanova, T. Fragos, D. -W. Kim +6
Globular clusters (GCs) effectively produce dynamically-formed low-mass X-ray binaries (LMXBs). Observers detect ~100 times more LMXBs per stellar mass in GCs compared to stars in…