11 citations · 11 across the 2 of their papers we have counts for
7 papers
Optical studies of companions to millisecond pulsars
M. H. van Kerkwijk, C. G. Bassa, B. A. Jacoby +1
Optical observations of the companions of pulsars can help determine the properties of the binaries, as well as those of their components, and give clues to the preceding evolution…
Optical and Infrared Observations of Anomalous X-ray Pulsars
Martin Durant, Marten H. van Kerkwijk, Ferdi Hulleman
The detection of optical/infrared counterparts to Anomalous X-ray Pulsars (AXPs) has greatly increased our understanding of these systems. Models for the AXP phenomenon were based…
A deep search for the optical counterpart to the anomalous X-ray pulsar 1E 2259+58.6
F. Hulleman, M. H. van Kerkwijk, F. W. M. Verbunt +1
We present Keck R and I band images of the field of the anomalous X-ray pulsar 1E 2259+58.6. We derive an improved X-ray position from archival ROSAT HRI observations by correcting…
A new X-ray outburst in the globular cluster NGC 6440: SAX J1748.9-2021
J. J. M. in 't Zand, F. Verbunt, T. E. Strohmayer +8
For the second time in 27 years a bright transient X-ray source has been detected coincident with the globular cluster NGC 6440. It was found to be active in August, 1998, with the…
The White Dwarf Companions of Recycled Pulsars
M. H. van Kerkwijk
I review what properties of the white-dwarf companions of recycled pulsars can be inferred from optical observations, and discuss how these can help us understand the characteristi…
The Wolf-Rayet counterpart of Cygnus X-3
M. H. van Kerkwijk, T. R. Geballe, D. L. King +2
We present orbital-phase resolved I and K-band spectroscopy of Cygnus X-3. All spectra show emission lines characteristic of Wolf-Rayet stars of the WN subclass. On time scales lon…