Fermi LAT observation of supernova remnant HB9

@article{Araya2014FermiLO,
  title={Fermi LAT observation of supernova remnant HB9},
  author={M. Araya},
  journal={Monthly Notices of the Royal Astronomical Society},
  year={2014},
  volume={444},
  pages={860-865}
}
  • M. Araya
  • Published 18 May 2014
  • Physics
  • Monthly Notices of the Royal Astronomical Society
A 5.5-year Fermi LAT gamma-ray observation shows significant extended emission at the position of the supernova remnant HB9 (G160.9+2.6). The significance of the detection above the background for photon energies above 0.2 GeV is 16$\sigma$. The gamma-ray flux above 0.2 GeV is (2.23E-8) photons/cm$^2$ s, and the corresponding luminosity above 1 GeV is 1.4E33 erg/s (for a source distance of 1 kpc). The spectrum of the source is best described by a curved power-law (log-parabola). The gamma-ray… 
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References

SHOWING 1-10 OF 43 REFERENCES

FERMI-LAT STUDY OF GAMMA-RAY EMISSION IN THE DIRECTION OF SUPERNOVA REMNANT W49B

We present an analysis of the gamma-ray data obtained with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope in the direction of SNR W49B (G43.3−0.2). A bright unresolved…

THE LIKELY FERMI DETECTION OF THE SUPERNOVA REMNANT RCW 103

We report on the results from our γ-ray analysis of the supernova remnant (SNR) RCW 103 region. The data were taken with the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. An…

FERMI-LAT DISCOVERY OF GeV GAMMA-RAY EMISSION FROM THE YOUNG SUPERNOVA REMNANT CASSIOPEIA A

We report on the first detection of GeV high-energy gamma-ray emission from a young supernova remnant (SNR) with the Large Area Telescope aboard the Fermi Gamma-ray Space Telescope. These…

FERMI LARGE AREA TELESCOPE OBSERVATIONS OF THE SUPERNOVA REMNANT G8.7−0.1

We present a detailed analysis of the GeV gamma-ray emission toward the supernova remnant (SNR) G8.7−0.1 with the Large Area Telescope (LAT) on board the Fermi Gamma-ray Space Telescope. An…

FERMI LARGE AREA TELESCOPE DETECTION OF SUPERNOVA REMNANT RCW 86

Using 5.4 yr Fermi Large Area Telescope data, we report the detection of GeV γ-ray emission from the shell-type supernova remnant RCW 86 (G315.4-2.3) with a significance of ∼5.1σ. The data slightly…

Detection of gamma-ray emission in the region of the supernova remnants G296.5+10.0 and G166.0+4.3

months of accumulated observations by the Large Area Telescope onboard the Fermi Gamma-ray Space Telescopein the region of the supernova remnants G296.5+10.0 (PKS 1209-51/52) and G166.0+4.3 (VRO…

FERMI LARGE AREA TELESCOPE OBSERVATIONS OF THE CYGNUS LOOP SUPERNOVA REMNANT

We present an analysis of the gamma-ray measurements by the Large Area Telescope onboard the Fermi Gamma-ray Space Telescope in the region of the supernova remnant (SNR) Cygnus Loop (G74.0−8.5). We…

FERMI LAT DISCOVERY OF EXTENDED GAMMA-RAY EMISSION IN THE DIRECTION OF SUPERNOVA REMNANT W51C

The discovery of bright gamma-ray emission coincident with supernova remnant (SNR) W51C is reported using the Large Area Telescope (LAT) onboard the Fermi Gamma-ray Space Telescope. W51C is a…

Gamma-Ray Production in Supernova Remnants

The bulk of cosmic rays of up to about 100 TeV are thought to be accelerated by the first-order Fermi mechanism at supernova shocks, producing a power-law spectrum. Both electrons and protons should…

FERMI LARGE AREA TELESCOPE DETECTION OF THE YOUNG SUPERNOVA REMNANT TYCHO

After almost three years of data taking in sky-survey mode, the Fermi Large Area Telescope has detected γ-ray emission toward Tycho's supernova remnant (SNR). The Tycho SNR is among the youngest…