376 citations · 705 across the 12 of their papers we have counts for
12 papers
First Sagittarius A* Event Horizon Telescope Results. II. EHT and Multi-wavelength Observations, Data Processing, and Calibration
The Event Horizon Telescope Collaboration
We present Event Horizon Telescope (EHT) 1.3 mm measurements of the radio source located at the position of the supermassive black hole Sagittarius A* (Sgr A*), collected during th…
Observatory science with eXTP
Jean J. M. in 't Zand, Enrico Bozzo, Jinlu Qu +181
In this White Paper we present the potential of the enhanced X-ray Timing and Polarimetry (eXTP) mission for studies related to Observatory Science targets. These include flaring s…
Disk reflection and a possible disk wind during a soft X-ray state in the neutron star low-mass X-ray binary 1RXS J180408.9-342058
N. Degenaar, D. Altamirano, M. Parker +10
1RXS J180408.9-342058 is a transient neutron star low-mass X-ray binary that exhibited a bright accretion outburst in 2015. We present Nustar, Swift, and Chandra observations obtai…
A strongly heated neutron star in the transient Z source MAXI J0556-332
Jeroen Homan, Joel K. Fridriksson, Rudy Wijnands +5
We present Chandra, XMM-Newton, and Swift observations of the quiescent neutron star in the transient low-mass X-ray binary MAXI J0556-332. Observations of the source made during o…
Swift J1357.2-0933: the faintest black hole?
M. Armas Padilla, R. Wijnands, N. Degenaar +3
Swift J1357.2-0933 is the first confirmed very faint black hole X-ray transient and has a short estimated orbital period of 2.8 hr. We observed Swift J1357.2-0933 for ~50 ks with X…
An X-ray-UV correlation in Cen X-4 during quiescence
E. M. Cackett, E. F. Brown, N. Degenaar +3
Quiescent emission from the neutron star low-mass X-ray binary Cen X-4 is seen to be variable on timescales from hundreds of seconds to years, suggesting that at least in this obje…