English

TeV Gamma-Ray Sources from a Survey of the Galactic Plane with Milagro

Astrophysics 2009-06-23 v1

Abstract

A survey of Galactic gamma-ray sources at a median energy of ~20 TeV has been performed using the Milagro Gamma Ray Observatory. Eight candidate sources of TeV emission are detected with pre-trials significance >4.5σ>4.5\sigma in the region of Galactic longitude l[30,220]l\in[30^\circ,220^\circ] and latitude b[10,10]b\in[-10^\circ,10^\circ]. Four of these sources, including the Crab nebula and the recently published MGRO J2019+37, are observed with significances >4σ>4\sigma after accounting for the trials involved in searching the 3800 square degree region. All four of these sources are also coincident with EGRET sources. Two of the lower significance sources are coincident with EGRET sources and one of these sources is Geminga. The other two candidates are in the Cygnus region of the Galaxy. Several of the sources appear to be spatially extended. The fluxes of the sources at 20 TeV range from ~25% of the Crab flux to nearly as bright as the Crab.

Keywords

Cite

@article{arxiv.0705.0707,
  title  = {TeV Gamma-Ray Sources from a Survey of the Galactic Plane with Milagro},
  author = {A. A. Abdo and B. Allen and D. Berley and S. Casanova and C. Chen and D. G. Coyne and B. L. Dingus and R. W. Ellsworth and L. Fleysher and R. Fleysher and M. M. Gonzalez and J. A. Goodman and E. Hays and C. M. Hoffman and B. Hopper and P. H. Huntemeyer and B. E. Kolterman and C. P. Lansdell and J. T. Linnemann and J. E. McEnery and A. I. Mincer and P. Nemethy and D. Noyes and J. M. Ryan and P. M. Saz Parkinson and A. Shoup and G. Sinnis and A. J. Smith and G. W. Sullivan and V. Vasileiou and G. P. Walker and D. A. Williams and X. W. Xu and G. B. Yodh},
  journal= {arXiv preprint arXiv:0705.0707},
  year   = {2009}
}

Comments

Submitted to ApJ