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A Radio Counterpart for the Unidentified TeV Source HESS J1813-178: The Radio-Gamma-Ray Connection
David J. Helfand, Robert H. Becker, Richard L. White
We discovered independently the shell-type supernova remnant G12.82-0.02, recently reported by Brogan et al. (2005), which is coincident with the unidentified TeV gamma-ray source…
Uncovering High-z Clusters Using Wide-Angle Tailed Radio Sources
E. L. Blanton, M. D. Gregg, D. J. Helfand +2
The morphologies of wide-angle tailed (WAT) radio sources (edge-darkened, C-shaped, FR I radio sources) are the result of confinement and distortion of the radio lobes by the dense…
The Galactic Plane Observed by XMM-Newton
A. Hands, R. Warwick, M. Watson +1
In A0-1 we proposed an ambitious long-term survey of selected regions of our Galaxy (the XGPS survey) using the EPIC CCD cameras on XMM-Newton. The first phase of the programme, wh…
Constraining the Birth Events of Neutron Stars
V. M. Kaspi, D. J. Helfand
The prescient remark by Baade and Zwicky that supernovae beget neutron stars did little to prepare us for the remarkable variety of observational manifestations such objects displa…
Chandra X-ray Spectroscopy of Kes75, its Young Pulsar, and its Synchrotron Nebula
B. F. Collins, E. V. Gotthelf, D. J. Helfand
We have observed the young Galactic supernova remnant Kes 75 with the Chandra X-ray Observatory. This object is one of an increasing number of examples of a shell-type remnant with…
The New Gamma-ray Pulsar PSR J2229+6114, its Pulsar Wind Nebula, and Comparison with the Vela Pulsar
J. P. Halpern, E. V. Gotthelf, F. Camilo +2
With a period of 51.6 ms and spin-down power 2.2x10^{37} erg s^{-1}, PSR J2229+6114 is a compelling identification for the EGRET source 3EG J2227+6122 in which error circle it resi…