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Articles 91 - 92 of 92
Full-Text Articles in Physical Sciences and Mathematics
Discovery Of Spectral Variability Of Markarian 421 At Tev Energies, P. T. Reynolds, Et. Al.
Discovery Of Spectral Variability Of Markarian 421 At Tev Energies, P. T. Reynolds, Et. Al.
Physical Sciences Publications
The detection of spectral variability of the γ-ray blazar Mrk 421 at TeV energies is reported. Observations with the Whipple Observatory 10 m γ-ray telescope taken in 2000/2001 revealed exceptionally strong and long-lasting flaring activity. Flaring levels of 0.4-13 times that of the Crab Nebula flux provided sufficient statistics for a detailed study of the energy spectrum between 380 GeV and 8.2 TeV as a function of the flux level. These spectra are well described by a power law with an exponential cutoff: dN/dE ∝ E-αeimg1.gif m-2 s-1 TeV-1. There is no evidence for variation in the cutoff energy with …
Multiwavelength Observations Of A Tev-Flare From W Comae, P. T. Reynolds, Veritas, Agile
Multiwavelength Observations Of A Tev-Flare From W Comae, P. T. Reynolds, Veritas, Agile
Physical Sciences Publications
No abstract provided.