we propose to obtain the infrared spectral energy distributions of 15 gamma-ray blazars from the second egret catalog which are not included in the guaranteed or approved open time proposals. this increases the size of a statistically complete sample from 26 to 41 objects. the infrared emission in blazars is dominated by highly beamed synchrotron radiation from a relativistic jet. photons from the peak of the synchrotron energy output (in the infrared for most high-luminosity blazars) or from an external radiation field are inverse-compton scattered to gamma-ray energies by the synchrotron-emitting electrons. the infrared spectral shape is vital to constraining models of the broad-band emission in this objects by characterizing the physical parameters of the relativistic charged particles which do the scattering.
Instrument
CAM01 , PHT03 , PHT22
Temporal Coverage
1997-04-17T08:06:06Z/1997-06-12T16:40:24Z
Version
1.0
Mission Description
The Infrared Space Observatory (ISO) was the worlds first true orbiting infrared observatory. Equipped with four highly-sophisticated and versatile scientific instruments, it was launched by Ariane in November 1995 and provided astronomers world-wide with a facility of unprecedented sensitivity and capabilities for a detailed exploration of the Universe at infrared wavelengths.
European Space Agency, WEHRLE et al., 1999, 'THE ENERGY EMISSION MECHANISM OF GAMMA-RAY BLAZARS', 1.0, European Space Agency, https://doi.org/10.5270/esa-745s7d5
