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Pulsar Wind Nebulae as High Energy Gamma-Ray Emitters
Mallory S. E. Roberts, Bryan M. Gaensler, Roger W. Romani
There is growing evidence that some variable high-energy gamma-ray sources are associated with pulsar wind nebulae. We review the current status of X-ray and radio studies of the s…
Multiwavelength Studies of PSR J1420-6048, a Young Pulsar in the Kookaburra
Mallory S. E. Roberts, Roger W. Romani, Simon Johnston
We present X-ray, radio, and infrared observations of the 68 ms pulsar PSR J1420-6048 and its surrounding nebula, a possible counterpart of the gamma-ray source GeV J1417-6100/3EG…
Phase Dependent Spectral Variability of 4U1907+09
Mallory S. E. Roberts, Peter F. Michelson, Denis A. Leahy +4
We report on ASCA, RXTE, and archival observations of the high mass X-ray binary pulsar 4U1907+09. Spectral measurements of the absorption and flux were made at all phases of the X…
X-Ray and Radio Observations of Bright GeV Sources
Mallory S. E. Roberts, Roger W. Romani, Nobuyuki Kawai +2
We present X-ray and radio studies of sources which are brightabove 1 GeV (F_{>1GeV} > 4e-8 ph/cm^2/s. Only 11 out of ~30 of these gamma-ray sources have been identified with lower…