2.1k citations · 16.4k across the 135 of their papers we have counts for
4 papers · 2 filters
The 3 Ms Chandra Campaign on Sgr A*: A Census of X-ray Flaring Activity from the Galactic Center
J. Neilsen, M. A. Nowak, C. Gammie +14
Over the last decade, X-ray observations of Sgr A* have revealed a black hole in a deep sleep, punctuated roughly once per day by brief flares. The extreme X-ray faintness of this…
Dissecting X-ray-emitting Gas around the Center of our Galaxy
Q. D. Wang, M. A. Nowak, S. B. Markoff +16
Most supermassive black holes (SMBHs) are accreting at very low levels and are difficult to distinguish from the galaxy centers where they reside. Our own Galaxy's SMBH provides a…
A Deep Chandra X-ray Limit on the Putative IMBH in Omega Centauri
Daryl Haggard, Adrienne M. Cool, Craig O. Heinke +4
We report a sensitive X-ray search for the proposed intermediate mass black hole (IMBH) in the massive Galactic cluster, Omega Centauri (NGC 5139). Combining Chandra X-ray Observat…
A Chandra/HETGS Census of X-ray Variability From Sgr A* During 2012
J. Neilsen, M. A. Nowak, C. Gammie +13
We present the first systematic analysis of the X-ray variability of Sgr A* during the Chandra X-ray Observatory's 2012 Sgr A* X-ray Visionary Project (XVP). With 38 High Energy Tr…