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Discovery of a Be/X-ray Binary Consistent with the Position of GRO J2058+42
Colleen A. Wilson, Martin C. Weisskopf, Mark H. Finger +4
GRO J2058+42 is a 195 s transient X-ray pulsar discovered in 1995 with BATSE. In 1996, RXTE located GRO J2058+42 to a 90% confidence error circle with a 4' radius. On 20 February 2…
The Chandra X-Ray Observatory: Observations of Neutron Stars
Martin C. Weisskopf
We present here an overview of the status of the Chandra X-ray Observatory which has now been operating for five years. The Observatory is running smoothly, and the scientific retu…
Revealing the X-ray emission processes of old rotation-powered pulsars: XMM-Newton Observations of PSR B0950+08,PSR B0823+26 and PSR J2043+2740
Werner Becker, Martin C. Weisskopf, Allyn F. Tennant +4
We have completed part of a program to study the X-ray emission properties of old rotation-powered pulsars with XMM-Newton in order to probe and identify the origin of their X-radi…
A multi-wavelength search for a counterpart of the unidentified gamma-ray source 3EG J2020+4017 (2CG078+2)
Werner Becker, Martin C. Weisskopf, Zaven Arzoumanian +8
In search of the counterpart to the brightest unidentified gamma-ray source 3EG J2020+4017 we report on new X-ray and radio observations of the gamma-Cygni field with the Chandra X…
Hard-X-Ray Optics Development at Marshall Space Flight Center
Brian D. Ramsey, Martin C. Weisskopf
This paper summarizes the current status of the development of hard-X-ray optics using nickel replication at NASA's Marshall Space Flight Center.
Chandra Observations of the X-ray Environs of SN 1998bw/GRB 980425
C. Kouveliotou, S. E. Woosley, S. K. Patel +8
(Abrigded) We report X-ray studies of the environs of SN 1998bw and GRB 980425 using the Chandra X-Ray Observatory 1281 days after the GRB. Combining our observation of the superno…