Catching blazars in the act exlamation GLAST triggers for TeV observation of blazars

Journal Article · Wed Dec 24 04:00:00 EST 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.3076793· OSTI ID:21255186

Behera, Bagmeet; Wagner, Stefan J ^[1]

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1. Landessternwarte, Universitaet Heidelberg, Koenigstuhl, D69117 Heidelberg (Germany)

The double humped SED (Spectral Energy Distribution) of blazars, and their flaring phenomena can be explained by various leptonic and hadronic models. However, accurate modeling of the high frequency component and clear identification of the correct emission mechanism would require simultaneous measurements in both the MeV-GeV band and the TeV band. Due to the differences in the sensitivity and the field of view of the instruments required to do these measurements, it is essential to identify active states of blazars likely to be detected with TeV instruments.Using a reasonable intergalactic attenuation model, various extrapolations of the EGRET spectra, as a proxy for GLAST (Gamma-ray Large Area Space Telescope) measurements, are made into TeV energies for selecting EGRET blazars expected to be VHE-bright. Furthermore, estimates of the threshold fluxes at GLAST energies are provided, at which sources are expected to be detectable at TeV energies, with Cherenkov telescopes like HESS, MAGIC or VERITAS.

• OSTI ID: 21255186
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1085; ISSN 0094-243X; ISSN APCPCS
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTRONOMY AND ASTROPHYSICS
99 GENERAL AND MISCELLANEOUS
ENERGY SPECTRA
EXTRAPOLATION
GAMMA ASTRONOMY
GAMMA RADIATION
GEV RANGE
HADRONS
MEV RANGE
QUASARS
SENSITIVITY
SIMULATION
TELESCOPES
TEV RANGE