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Search for Pulsar Wind Nebula Associations of Unidentified TeV Gamma-Ray Sources
Chulhoon Chang, Alexander Konopelko, Wei Cui
Many of the recently discovered TeV gamma-ray sources are associated with pulsar wind nebulae (PWNe). In fact, they represent the most populous class of Galactic sources at TeV ene…
The TeV Energy Spectrum of Mrk 421 Measured in A High Flaring State
A. Konopelko, W. Cui, C. Duke +1
The BL Lac object (blazar) Mrk 421 was observed during its outburst in April 2004 with the Whipple 10 m telescope for a total of about 24.5 hours. The measured gamma-ray rate varie…
Dramatic Variability of X-ray Absorption Lines in the Black Hole Candidate Cygnus X-1
Chulhoon Chang, Wei Cui
We report results from a 30 ks observation of Cygnus X-1 with the High Energy Transmission Grating Spectrometer (HETGS) on board the {\em Chandra X-ray Observatory}. Numerous absor…
Modeling Accretion Disk X-ray Continuum of Black Hole Candidates
Gabor Pszota, Wei Cui
We critically examine issues associated with determining the fundamental properties of the black hole and the surrounding accretion disk in an X-ray binary based on modeling the di…
Very High Energy Observations of Gamma-Ray Burst Locations with the Whipple Telescope
D. Horan, R. W. Atkins, H. M. Badran +56
Gamma-ray burst (GRB) observations at very high energies (VHE, E > 100 GeV) can impose tight constraints on some GRB emission models. Many GRB afterglow models predict a VHE compon…