Back to Search
Start Over
Explaining the extended GeV gamma-ray emission adjacent to HESS J1825-137
- Source :
- Monthly Notices of the Royal Astronomical Society. 504:1840-1853
- Publication Year :
- 2021
- Publisher :
- Oxford University Press (OUP), 2021.
-
Abstract
- HESS J1825-137 is one of the most powerful and luminous TeV gamma-ray pulsar wind nebulae (PWN). To the south of HESS J1825-137, Fermi-LAT observation revealed a new region of GeV gamma-ray emission with three apparent peaks (termed here, GeV-ABC). This study presents interstellar medium (ISM) data and spectral energy distribution (SED) modelling towards the GeV emission to understand the underlying particle acceleration. We considered several particle accelerator scenarios - the PWN associated with HESS J1825-137, the progenitor SNR also associated with HESS J1825-137, plus the gamma-ray binary system LS\,5039. It was found that the progenitor SNR of HESS J1825-137 has insufficient energetics to account for all GeV emission. GeV-ABC may be a reflection of an earlier epoch in the history of the PWN associated with HESS\,1825-137, assuming fast diffusion perhaps including advection. LS\,5039 cannot meet the required energetics to be the source of particle acceleration. A combination of HESS J1825-137 and LS 5039 could be plausible sources.<br />Comment: Submitted to MNRAS: https://academic.oup.com/mnras/advance-article-abstract/doi/10.1093/mnras/stab983/6219862
- Subjects :
- High Energy Astrophysical Phenomena (astro-ph.HE)
Physics
Astrophysics::High Energy Astrophysical Phenomena
Gamma ray
FOS: Physical sciences
Astronomy and Astrophysics
Particle accelerator
Cosmic ray
Astrophysics::Cosmology and Extragalactic Astrophysics
Astrophysics
law.invention
Particle acceleration
Interstellar medium
Pulsar
Space and Planetary Science
law
Spectral energy distribution
Diffusion (business)
Astrophysics - High Energy Astrophysical Phenomena
Astrophysics::Galaxy Astrophysics
Subjects
Details
- ISSN :
- 13652966 and 00358711
- Volume :
- 504
- Database :
- OpenAIRE
- Journal :
- Monthly Notices of the Royal Astronomical Society
- Accession number :
- edsair.doi.dedup.....46d1d23d0baf7d1203ec54230c8cd905