Results 41 to 50 of about 712,854 (335)
AMEGO-X: MeV gamma-ray Astronomy in the Multi-messenger Era [PDF]
International Conference on Rebooting Computing, 2021 Recent detections of gravitational wave signals and neutrinos from gamma-ray sources have ushered in the era of multi-messenger astronomy, while highlighting the importance of gammaray observations for this emerging field.
H. Fleischhack
semanticscholar +1 more source
A correlation between hard gamma-ray sources and cosmic voids along the line of sight [PDF]
, 2014 We estimate the galaxy density along lines of sight to hard extragalactic gamma-ray sources by correlating source positions on the sky with a void catalog based on the Sloan Digital Sky Survey (SDSS).
A. Furniss +3 more
semanticscholar +1 more source
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
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
NEW ASSOCIATIONS OF GAMMA-RAY SOURCES FROM THE FERMI SECOND SOURCE CATALOG [PDF]
, 2014 We present the results of an all-sky radio survey between 5 and 9 GHz of sky areas surrounding all unassociated γ-ray objects listed in the Fermi Large Area Telescope Second Source Catalog (2FGL).
F. Schinzel +5 more
semanticscholar +1 more source
CATACLYSMIC VARIABLES AND GAMMA-RAY SOURCES [PDF]
EAS Publications Series, 2013 The cataclysmic variables are associated with high energy events and probably many of them could be potential gamma-ray sources. Up to now Fermi-LAT detected 3 gamma-ray transients, which belong to CVs and related objects: V407 Cyg, N Sco 2012 and N Mon 2012 = V959 Mon. We present the first multicolour observations of the slow classical nova V959 Mon.
E. Pavlenko +3 more
openaire +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
SWIFT X-RAY TELESCOPE MONITORING OF FERMI-LAT GAMMA-RAY SOURCES OF INTEREST [PDF]
, 2013 We describe a long-term Swift monitoring program of Fermi gamma-ray sources, particularly the 23 gamma-ray “sources of interest.” We present a systematic analysis of the Swift X-Ray Telescope light curves and hardness ratios of these sources, and we ...
M. Stroh, A. Falcone
semanticscholar +1 more source
Runaway massive stars as variable gamma-ray sources [PDF]
, 2014 Runaway stars are ejected from their formation sites well within molecular cores in giant dark clouds. Eventually, these stars can travel through the molecular clouds, which are highly inhomogeneous.
M. V. D. Valle, G. Romero
semanticscholar +1 more source
THE FERMI ALL-SKY VARIABILITY ANALYSIS: A LIST OF FLARING GAMMA-RAY SOURCES AND THE SEARCH FOR TRANSIENTS IN OUR GALAXY [PDF]
, 2013 In this paper, we present the Fermi All-sky Variability Analysis (FAVA), a tool to systematically study the variability of the gamma-ray sky measured by the Large Area Telescope on board the Fermi Gamma-ray Space Telescope. For each direction on the sky,
M. Ackermann +154 more
semanticscholar +1 more source