Recent Submissions

• GRS 1739-278 OBSERVED AT VERY LOW LUMINOSITY WITH $\small \textit{XMM-NEWTON}$ AND $\small \textit{NuSTAR}$ ﻿

(IOP Publishing, 2016-12-01)
We present a detailed spectral analysis of $\small \textit{XMM-Newton}$ and $\small \textit{NuSTAR}$ observations of the accreting transient black hole GRS 1739−278 during a very faint low hard state at ~0.02% of the ...
• The mass distribution of the unusual merging cluster Abell 2146 from strong lensing ﻿

(Oxford University Press, 2017-01-11)
Abell 2146 consists of two galaxy clusters that have recently collided close to the plane of the sky, and it is unique in showing two large shocks on $\textit{Chandra X-ray Observatory}$ images. With an early stage merger, ...
• Do sound waves transport the AGN energy in the Perseus cluster? ﻿

(Oxford University Press, 2017-01-01)
The level of random motions in the intracluster gas lying between 20 and 60 kpc radius in the core of the Perseus cluster has been measured by the Hitomi Soft X-ray Spectrometer (SXS) at 164 ± 10 km s$^{−1}$ . The maximum ...
• A 78 Day X-Ray Period Detected from NGC 5907 ULX1 by $\textit{Swift}$ ﻿

(IOP Publishing, 2016-08-10)
We report the detection of a 78.1 ± 0.5 day period in the X-ray light curve of the extreme ultraluminous X-ray source NGC 5907 ULX1 (L$_\text{X,peak}$ ~ 5 × 10$^{40}$ erg s$^{-1}$), discovered during an extensive monitoring ...