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Year 2020, Volume: 1 Issue: 1, 389 - 390, 11.12.2020

Abstract

References

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Discovery of GeV Gamma-ray Emission from the Galactic Supernova Remnant Kes 41

Year 2020, Volume: 1 Issue: 1, 389 - 390, 11.12.2020

Abstract

We present the discovery of gamma-ray emission of the mixed-morphology supernova remnant (SNR) G337.8$-$0.1 (Kes 41) in the energy range of 0.2 $-$ 300 GeV using the data from Large Area Telescope on board of Fermi Gamma-ray Space Telescope ({\it Fermi}-LAT). SNR shocks interacting with molecular clouds are the best sites to search for the 'hadronic' origin of the gamma-ray emission and the acceleration processes of high-energy particles. There is multi-wavelength evidence for interactions of Kes 41 with a nearby molecular cloud suggesting that it may be a site for cosmic-ray acceleration. In this paper, we present the gamma-ray analysis using the {\it Fermi}-LAT data of $\sim$6 years, where we try to disentangle the complex morphology of the neighborhood of Kes 41. We report the detection of Kes 41 at a significance of $\sim$21$\sigma$ and a new closeby source ($\sim$31$\sigma$), as well as give preliminary results of the extension measurements.

References

  • Abdo, A. A. et al. 2009, Astrophysical Journal Supplement Series, 183, 46.
  • Abramowski, A. et al. 2014, Monthly Notices of the RAS, 439, 2828.
  • Abramowski, A. et al. 2014, Astrophysical Journal Letters, 794, 6.
  • Casandjian, J.-M. & Grenier, I. A. 2008, A&A, 489, 849.
  • Caswell, J. L. 2004, Monthly Notices of the RAS, 349, 114.
  • Combi, J. A., Albacete-Colombo, J. F. & Marti, J. 2008, A&A, 488, L25.
  • Dame T. M., Hartmann D., & Thaddeus P. 2001, ApJ, 547, 792.
  • Ergin, T. & Ercan, N. E. 2012, HIGH ENERGY GAMMA-RAY ASTRONOMY: 5th International Meeting on High Energy Gamma-Ray Astronomy. AIP Conference Proceedings, 1505, 265.
  • Hartman, R. C. et al. 1999,Astrophysical Journal Supplement Series, 123, 79.
  • Koralesky, B. et al. 1998, Astrophysical Journal , 116, 1323.
  • Kothes, R. & Dougherty, S. M. 2007, A&A, 468, 993.
  • Lemoine-Goumard, M. et al. 2014, ApJ, 794, L16.
  • Mattox, J. R. et al. 1996, Astrophysical Journal , 461, 396.
  • Rho, J. & Petre, R. 1998, Astrophysical Journal Letters, 503, L167.
  • Slane, P. et. al. 2014, arXiv:1406.4364.
  • Torres, D. F. et al. 2003, Phys. Rept., 382, 303.
  • Whiteoak, J. B. Z. & Green, A. J. 1996, A&ASS, 118, 329.
There are 17 citations in total.

Details

Primary Language English
Subjects Astronomical Sciences (Other)
Journal Section Conference Paper
Authors

Tülün Ergin This is me

Lab Saha This is me

Pratik Majumdar This is me

Publication Date December 11, 2020
Submission Date September 18, 2015
Published in Issue Year 2020 Volume: 1 Issue: 1

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TJAA is a publication of Turkish Astronomical Society (TAD).