Results 11 to 20 of about 26,149 (264)
Variability of EGRET Gamma‐Ray Sources [PDF]
The Astrophysical Journal, 2003 Accepted by ApJ. 13 pages, 3 figures, 2 tables. Machine-readable copies of Table 1 are at http://giants.stanford.edu/~pln/vartbl1/
Nolan, P. L. +3 more
openaire +2 more sources
Pulsar counterparts of gamma-ray sources [PDF]
AIP Conference Proceedings, 1997 The EGRET catalogue of unidentified X-ray sources has more objects along the galactic disk than at high galactic latitude, where identifications are comparatively easier. On the other hand, the Egret/GRO mission has already identified several known radio pulsars as gamma-ray sources as well as discovering Geminga's nature as a pulsar. If Geminga is not
Caraveo, P. A., Bignami, G. F.
openaire +2 more sources
The Astrophysical Journal, 2023 We present an analysis of γ -ray emission in the direction of supernova remnant (SNR) G15.4+0.1 with 13 yr Fermi Large Area Telescope data. There are three point-like GeV sources in this region: one is spatially coincident with the TeV source HESS J1818 ...
Yuan Li, Yuliang Xin, Siming Liu, Yu He
doaj +1 more source
Two Candidate Pulsar TeV Halos Identified from Property-similarity Studies
The Astrophysical Journal, 2023 Teraelectronvolt halos have been suggested to be a common phenomenon associated with middle-aged pulsars. Based on our recent work on the middle-aged pulsar J0631+1036, which is the only known source positionally coincident with a hard teraelectronvolt γ
Dong Zheng, Zhongxiang Wang
doaj +1 more source
Swift Follow-up of Reported Radio Pulsars at Fermi 4FGL Unassociated Sources
The Astrophysical Journal, 2023 Following the discovery of radio pulsars at the position of Fermi-LAT unassociated sources by the TRAPUM group, we conduct Swift-XRT observations of six of those 4FGL sources to determine if any pulsar-like X-ray sources are present and to confirm the ...
Stephen Kerby +2 more
doaj +1 more source
Microquasars and Gamma-ray Sources [PDF]
Chinese Journal of Astronomy and Astrophysics, 2005 Microquasars are X-ray binary systems with non-thermal radio emission originated in jet-like features. They are attractive sites for gamma-ray production, since relativistic particles in the jet should traverse locally strong both photon and matter fields.
openaire +3 more sources
Prompt gamma-ray methods for industrial process evaluation: A simulation study
Nukleonika, 2022 Radioisotope applications in industrial process inspection and evaluation using gamma-ray emitters provide otherwise unavailable information. Offering alternative gamma-ray sources can support the technology by complementing sources’ availability and ...
Mohammed Mohammed Siddig H. +5 more
doaj +1 more source
Differential Source Count for Gamma-Ray Bursts [PDF]
The Astrophysical Journal, 2021 Abstract Different forms of long gamma-ray burst (GRB) luminosity functions are considered on the basis of an explicit physical model. The inferred flux distributions are compared with the observed ones from two samples of GRBs, Swift and Fermi GBM.
Shreya Banerjee +2 more
openaire +2 more sources
A Search for Blazar-Like Radio-Loud Narrow-Line Seyfert 1 Galaxies
Galaxies, 2017 We report the results of an observational program to investigate the gamma-ray and optical variability properties of the vRL NLSY1 galaxies listed in the Yuan et al. sample. We have identified 17 members of the Yuan et al. sample possibly associated with
Hugh R. Miller +6 more
doaj +1 more source
Gamma-Ray Bursts as Neutrino Sources [PDF]
, 2017 13 pages, review to appear in "Neutrino Astronomy- Current status, future prospects", Eds. T. Gaisser \& A. Karle (World Scientific)
openaire +2 more sources