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A view of supernova remnant CTB 37A with the Fermi Gamma-ray Space Telescope

2011; Elsevier BV; Volume: 51; Issue: 2 Linguagem: Inglês

10.1016/j.asr.2011.07.021

1879-1948

T. J. Brandt,

Dark Matter and Cosmic Phenomena

Supernovae and their remnants have long been favored as cosmic ray ac- celerators. Recent data from the Fermi Gamma-ray Space Telescope has given us an improved window into such sources, including the remnant CTB 37A. Using the Fermi Large Area Telescope, we found significant gamma-ray emission coincident with the remnant, which also emits in radio, X-ray, and very high energy gamma-rays. We modeled the multiwavelength spectrum using a combination of hadronic and leptonic emission with reasonable parameter values and determined that CTB 37A is a potential cosmic ray accelerator commensurate with direct observations. By assembling statistically significant populations of such objects, we will be able to more fully illuminate the mystery of cosmic ray origins.