Coordinated Spitzer/Chandra Observations of Gamma Ray Blazars

Details Coordinated Spitzer/Chandra Observations of Gamma Ray Blazars Coordinated Spitzer/Chandra Observations of Gamma Ray Blazars

May 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006sptz.prop30785w&link_type=abstract

Spitzer Proposal ID #30785

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Scientific paper

We propose for coordinated Spitzer and Chandra observations of fourteen gamma-ray blazars. The blazars have two-peaked spectral energy distributions, where the infrared peak is synchtrotron emission produced by relativistic electrons, and the x-ray-gamma-ray peak is inverse-Compton scattered emission. The observations will map out the shape of the infrared synchrotron peak and its changes with two sets of independent observations about six months apart. All three Spitzer instruments will be used in normal, successive instrument campaigns, as we did during our 2005 observations of flaring blazar 3C454.3. The Chandra observations are used to obtain x-ray fluxes and spectral indices which will indicate relative contributions of synchrotron and inverse-Compton emission in the Chandra x-ray band. The Spitzer MIPS and Chandra observations need to be scheduled within a day of each other because the sources are highly variable.

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