546 citations · 3.7k across the 84 of their papers we have counts for
Showing 2006Show all
3 papers · 1 filter
astro-ph2006★ 81 cited
Spectral State Transitions of the Ultraluminous X-ray Sources X-1 and X-2 in NGC 1313
Hua Feng, Philip Kaaret
X-ray spectral state transitions are a key signature of black hole X-ray binaries and follow a well-defined pattern. We examined 12 XMM-Newton observations of the nearby spiral gal…
astro-ph2006★ 20 cited
A Comparison of Ultraluminous X-ray Sources in NGC 1399 and the Antennae Galaxies (NGC 4038/4039)
Hua Feng, Philip Kaaret
The temporal and spectral properties of ultraluminous X-ray sources (ULXs, L>2x10^39 ergs/s) and bright X-ray sources (L>3x10^38 ergs/s) are examined and compared in two extremely…
astro-ph2006★ 5 cited
Double-Layer Silicon PIN Photodiode X-Ray Detector for a Future X-ray Timing Mission
Hua Feng, Philip Kaaret, Hans Andersson
A double-layer silicon detector consisting of two 500micron-thick silicon PIN photodiodes with independent readouts was mounted in a vacuum chamber and tested with X-ray sources. T…