500 citations · 13.7k across the 252 of their papers we have counts for
11 papers · 2 filters
Investigating Variability of Quiescent Neutron Stars in the Globular Clusters NGC 6440 and Terzan 5
A. R. Walsh, E. M. Cackett, F. Bernardini
The quiescent spectrum of neutron star low-mass X-ray binaries typically consists of two components - a thermal component associated with emission from the neutron star surface, an…
X-ray Spectral and Variability Properties of Low-Mass AGN
R. M. Ludlam, E. M. Cackett, K. Gultekin +3
We study the X-ray properties of a sample of 14 optically-selected low-mass AGN whose masses lie within the range 1E5 -2E6 M(solar) with XMM-Newton. Only six of these low-mass AGN…
ASTRO-H White Paper - Low-mass X-ray Binaries
C. Done, M. Tsujimoto, E. Cackett +20
There is still 10-20% uncertainty on the neutron star (NS) mass-radius relation. These uncertainties could be reduced by an order of magnitude through an unambiguous measure of M/R…
The changing X-ray time lag in MCG-6-30-15
E. Kara, A. C. Fabian, A. Marinucci +6
MCG-6-30-15 is one of the most observed Narrow Line Seyfert 1 galaxies in the X-ray band. In this paper we examine the X-ray time lags in this source using a total of 600 ks in obs…
Low-Mass AGN and Their Relation to the Fundamental Plane of Black Hole Accretion
Kayhan Gultekin, Edward M. Cackett, Ashley L. King +2
We put active galactic nuclei (AGNs) with low-mass black holes on the fundamental plane of black hole accretion---the plane that relates X-ray emission, radio emission, and mass of…
Observations of MCG-5-23-16 with Suzaku, XMM-Newton and NuSTAR: Disk tomography and Compton hump reverberation
A. Zoghbi, E. M. Cackett, C. Reynolds +12
MCG-5-23-16 is one of the first AGN where relativistic reverberation in the iron K line originating in the vicinity of the supermassive black hole was found, based on a short XMM-N…