activity
19972024
most citedFirst Sagittarius A* Event Horizon Telescope Results. I. The Shadow of the Supermassive Black Hole in the Center of the Milky Way

1.9k citations · 4.7k across the 71 of their papers we have counts for

collaborators
Showing 2004 · astro-phShow all

8 papers · 2 filters

astro-ph2004

Relations Between Timing Features and Colors in Accreting Millisecond Pulsars

Steve van Straaten, Michiel van der Klis, Rudy Wijnands

We have studied the aperiodic X-ray timing and color behavior of the accreting millisecond pulsars SAX J1808.4-3658, XTE J1751-305, XTE J0929-314, and XTE J1814-338 using large dat…

astro-ph2004

X-ray variability during the quiescent state of the neutron-star X-ray transient in the globular cluster NGC 6440

Edward M. Cackett, Rudy Wijnands, Craig O. Heinke +6

The globular cluster NGC 6440 is known to harbor a bright neutron-star X-ray transient. We observed the globular cluster with Chandra on two occasions when the bright transient was…

astro-ph2004

High- and low-frequency quasi-periodic oscillations in the X-ray light curves of the black hole transient H1743-322

Jeroen Homan, Jon M. Miller, Rudy Wijnands +4

We present a variability study of the black hole candidate and X-ray transient H1743-322 during its 2003/2004 outburst. We analyzed five Rossi X-ray Timing Explorer observations th…

astro-ph2004

Simultaneous Chandra and RXTE Spectroscopy of the Microquasar H~1743-322: Clues to Disk Wind and Jet Formation from a Variable Ionized Outflow

J. M. Miller, J. Raymond, J. Homan +7

We observed the bright phase of the 2003 outburst of the Galactic black hole candidate H 1743-322 in X-rays simultaneously with Chandra and RXTE on four occasions. The Chandra/HETG…

astro-ph2004

Chandra observations of the accretion-driven millisecond X-ray pulsars XTE J0929-314 and XTE J1751-305 in quiescence

Rudy Wijnands, Jeroen Homan, Craig O. Heinke +2

(Abridge) We observed the accreting millisecond X-ray pulsars XTE J0929-314 and XTE J1751-305 in their quiescent states using Chandra. From XTE J0929-314 we detected 22 photons (0.…

astro-ph2004

Crust cooling curves of accretion-heated neutron stars

Rudy Wijnands

We discuss the recent efforts to use a sub-class of neutron-star X-ray transients (the quasi-persistent transients) to probe the properties of neutron-star crusts and cores. Quasi-…