104 citations · 637 across the 21 of their papers we have counts for
11 papers · 1 filter
A multi-wavelength view of distinct accretion regimes in the pulsating ultraluminous X-ray source NGC 1313 X-2
Rajath Sathyaprakash, Timothy P. Roberts, Fabien Grisè +7
NGC 1313 X-2 is one of the few known pulsating ultraluminous X-ray sources (PULXs), and so is thought to contain a neutron star that accretes at highly super-Eddington rates. Howev…
Nature of the soft ULX in NGC 247: super-Eddington outflow and transition between the supersoft and soft ultraluminous regimes
Hua Feng, Lian Tao, Philip Kaaret +1
We report on XMM-Newton/Chandra/Swift/HST observations of the ultraluminous X-ray source (ULX) in NGC 247, which is found to make transitions between the supersoft ultraluminous (S…
Searching for X-ray sources in nearby late-type galaxies with low star formation rates
K. Chatterjee, P. Kaaret, M. Brorby +4
Late type non-starburst galaxies have been shown to contain X-ray emitting objects, some being ultraluminous X-ray sources. We report on XMM-Newton observations of 11 nearby, late-…
The evolution of a jet ejection of the ultraluminous X-ray source Holmberg II X-1
D. Cseh, J. C. A. Miller-Jones, P. G. Jonker +7
We present quasi-simultaneous, multi-epoch radio and X-ray measurements of Holmberg II X-1 using the European VLBI Network (EVN), the Karl G. Jansky Very Large Array (VLA), and the…
Spectral State Transitions of the Ultraluminous X-ray Source IC 342 X-1
Hannah Marlowe, Philip Kaaret, Cornelia Lang +6
We observed the Ultraluminous X-ray Source IC 342 X-1 simultaneously in X-ray and radio with Chandra and the JVLA to investigate previously reported unresolved radio emission coinc…
Unveiling recurrent jets of the ULX Holmberg II X-1: evidence for a massive stellar-mass black hole?
D. Cseh, P. Kaaret, S. Corbel +10
We report on the discovery of an apparent triple radio structure hidden inside the radio bubble of the ultraluminous X-ray source Holmberg II X-1. The morphology is consistent with…