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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…
Thermal emission from low-field neutron stars
B. T. Gaensicke, T. M. Braje, R. W. Romani
We present a new grid of LTE model atmospheres for weakly magnetic (B<=10e10G) neutron stars, using opacity and equation of state data from the OPAL project and employing a fully f…
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-resolved Crab Studies with a Cryogenic TES Spectrophotometer
Roger W. Romani, A. J. Miller, B. Cabrera +2
We are developing time- and energy-resolved near-IR/optical/UV photon detectors based on sharp superconducting-normal transition edges in thin films. We report observations of the…
Giant Pulses from the Millisecond Pulsar B1821-24
Roger W. Romani, Simon Johnston
We have carried out a survey for `giant pulses' in 5 millisecond pulsars. We detect individual pulses from the high Edot pulsar PSR B1821-24 with energies exceeding 50x the mean pu…
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…