A search for TeV gamma-ray emission from SNRs, pulsars and unidentified GeV sources in the Galactic plane in the longitude range between $-2^\circ$ and $85^\circ$
Open Access
- 18 November 2002
- journal article
- Published by EDP Sciences in Astronomy & Astrophysics
- Vol. 395 (3) , 803-811
- https://doi.org/10.1051/0004-6361:20021347
Abstract
Using the HEGRA system of imaging atmospheric Cherenkov telescopes, one quarter of the Galactic plane () was surveyed for TeV gamma-ray emission from point sources and moderately extended sources (Ø). The region covered includes 86 known pulsars (PSR), 63 known supernova remnants (SNR) and nine GeV sources, representing a significant fraction of the known populations. No evidence for emission of TeV gamma radiation was detected, and upper limits range from 0.15 Crab units up to several Crab units, depending on the observation time and zenith angles covered. The ensemble sums over selected SNR and pulsar subsamples and over the GeV-sources yield no indication of emission from these potential sources. The upper limit for the SNR population is 6.7% of the Crab flux and for the pulsar ensemble is 3.6% of the Crab flux.Keywords
All Related Versions
This publication has 27 references indexed in Scilit:
- A search for gamma-ray emission from the Galactic plane in the longitude range between $\mathsf{37}^\circ$ and $\mathsf{43}^\circ$Astronomy & Astrophysics, 2001
- A study of Tycho's SNR at TeV energies with the HEGRA CT-SystemAstronomy & Astrophysics, 2001
- Evidence for TeV gamma ray emission from Cassiopeia AAstronomy & Astrophysics, 2001
- TeV gamma rays expected from supernova remnants in different uniform interstellar mediaAstroparticle Physics, 2000
- Galactic Gamma‐Ray Background Radiation from Supernova RemnantsThe Astrophysical Journal, 2000
- The Energy Spectrum of TeV Gamma Rays from the Crab Nebula as Measured by the HEGRA System of Imaging Air Cerenkov TelescopesThe Astrophysical Journal, 2000
- Galactic TeV gamma-ray sourcesAstroparticle Physics, 1999
- A New Σ‐DRelation and Its Application to the Galactic Supernova Remnant DistributionThe Astrophysical Journal, 1998
- Characteristics of the multi-telescope coincidence trigger of the HEGRA IACT systemAstroparticle Physics, 1998
- Inverse Compton gamma radiation of faint synchrotron X-ray nebulae around pulsarsMonthly Notices of the Royal Astronomical Society, 1997