Location of the gamma-ray transient event of 1979 March 5

Journal Article · Tue Apr 01 04:00:00 EST 1980 · Astrophys. J., Lett. Ed.; (United States)

DOI:https://doi.org/10.1086/183222· OSTI ID:5286332

Evans, W D; Klebesadel, R W; Laros, J G; Cline, T L; Desai, U D; Pizzichini, G; Teegarden, B J; Hurley, K; Niel, M; Vedrenne, G; Estoolin, I V; Kouznetsov, A V; Zenchenko, V M; Kurt, V G

The 1979 March 5 gamma event (Cline et al.; Mazets et al.; Barat et al.) was observed by gamma burst instruments on nine widely separated spacecraft. Analysis of the event arrival times has yielded a redundantly determined 1' x 2' error box centered at R.A.=5/sup h/25/sup m/95, decl.=-66 /sup 0/07'. 1 (equinox 1950.0). Located within the box is N49, a supernova remnant in the LMC. If N49 was the source of the transient, then the peak ..gamma..-ray and hard X-ray luminosity was 10/sup 44-45/ ergs s/sup -1/, and the total radiated energy was 10/sup 43-44/ ergs. Although the statistical arguments in favor of identification with N49 are strong, some of the event characteristics: e.g., the combination of high intensity and fast rise time: seem to be more easily explainable in terms of a foreground object.

• Research Organization: University of California, Los Alamos Scientific Laboratory
• OSTI ID: 5286332
• Journal Information: Astrophys. J., Lett. Ed.; (United States), Journal Name: Astrophys. J., Lett. Ed.; (United States) Vol. 237:1; ISSN AJLEA
• Country of Publication: United States
• Language: English

Related Subjects

640103* -- Astrophysics & Cosmology-- Quasi-Stellar
Radio
& X-Ray Sources-- (-1987)
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC GAMMA BURSTS
COSMIC GAMMA SOURCES
COSMIC RADIATION
COSMIC RADIO SOURCES
COSMIC RAY SOURCES
DATA ANALYSIS
IONIZING RADIATIONS
PRIMARY COSMIC RADIATION
RADIATIONS
SPACE VEHICLES
SUPERNOVA REMNANTS