90 citations · 749 across the 18 of their papers we have counts for
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NuSTAR, XMM-Newton and Suzaku Observations of the Ultraluminous X-ray Source Holmberg II X-1
D. J. Walton, M. J. Middleton, V. Rana +14
We present the first broadband 0.3-25.0 kev X-ray observations of the bright ultraluminous X-ray source (ULX) Holmberg II X-1, performed by NuSTAR, XMM-Newton and Suzaku in Septemb…
ASTRO-H White Paper - Introduction
T. Takahashi, K. Mitsuda, R. Kelley +4
ASTRO-H White Papers are meant to provide useful information to scientists who plan observations from the satellite. This short paper introduces the 16 ASTRO-H White Papers in addi…
Searching for Massive Outflows in Holmberg IX X-1 and NGC 1313 X-1: The Iron K Band
D. J. Walton, J. M. Miller, R. C. Reis +1
We have analysed all the good quality XMM-Newton data publicly available for the bright ULXs Holmberg IX X-1 and NGC 1313 X-1, with the aim of searching for discrete emission or ab…
Insights on the X-ray weak quasar phenomenon from XMM-Newton monitoring of PHL 1092
G. Miniutti, W. N. Brandt, D. P. Schneider +3
PHL 1092 is a z~0.4 high-luminosity counterpart of the class of Narrow-Line Seyfert 1 galaxies. In 2008, PHL 1092 was found to be in a remarkably low X-ray flux state during an XMM…
Re-examining the XMM-Newton Spectrum of the Black Hole Candidate XTE J1652-453
Chia-Ying Chiang, R. C. Reis, D. J. Walton +1
The XMM-Newton spectrum of the black hole candidate XTE J1652-453 shows a broad and strong Fe K-alpha emission line, generally believed to originate from reflection of the inner ac…
The quasar PG 0844+349 in an X-ray weak state
L. C. Gallo, D. Grupe, N. Schartel +4
In March 2009 the well-studied quasar, PG 0844+349, was discovered with Swift to be in an X-ray weak state. A follow-up XMM-Newton observation several weeks later generated a good…