EXOSAT observations of two gamma-ray burst sources

Niel, M.; Atteia, J.-L.; Hurley, K.; Boer, M.; Barat, C.; Bonnazola, S.; Mason, K.; Pizzichini, G.; Sims, M.R.; Taylor, B.G.; Motch, C.; Ilovaisky, S.; Chevalier, C.; Martin Diaz, C.; Klebesadel,R.W.; Middleditch, J.; Evans, W.D.; Fenimore, E.E; Cordova, F.; Laros, J.G.; Branduardi-Raymont, G.
Referencia bibliográfica

COSPAR, Plenary Meeting, 26th, Topical Meeting on Gamma-Ray Astronomy, Toulouse, France, June 30-July 11, 1986 Advances in Space Research (ISSN 0273-1177), vol. 6, no. 4, 1986, p. 65-68.

Fecha de publicación:
1986
Número de autores
21
Número de autores del IAC
1
Número de citas
0
Número de citas referidas
0
Descripción
EXOSAT observations of the 19 Nov. 1978 and 25 Mar. 1979b gamma bursters are presented, for the 0.02 - 2.5 keV energy range. No source was detected in either case, leading to temperature upper limits for the neutron stars assumed to be present of 105- 106K. Polar cap accretion rates are constrained to values of 10-12- 10-18M_sun;/y km2. The EXOSAT non-detection of the source discovered by the Einstein satellite in the 19 Nov. 1978 error box may be explained if the burster is more distant than about 1.5 kpc.