In current theoretical models of the blazar subclass of active galaxies, the broadband emission consists of two components: a low frequency synchrotron component with an SED peak in the IR to X-ray band, and a high frequency inverse Compton component with a peak in the gamma-ray band. In such models, the gamma-ray spectral index should be correlated with the location of the low-energy peak, with flatter gamma-ray spectra expected for blazars with synchrotron peaks at higher photon energies. Using the EGRET-detected blazars as a sample, we examine this correlation and possible uncertainties in its construction.
American Astronomical Society Meeting Abstracts
- Pub Date:
- December 1998