THE LIGHT-CURVE OF THE GEMINGA GAMMA-RAY PULSAR AT 400-4000 MEV ACCORDING TO GAMMA-1 TELESCOPE DATA

Authors
AKIMOV VV AFANASEV VG BLOKHINTSEV ID KALINKIN LF LEIKOV NG NESTEROV VE GALPER AM OZEROV YV RUDKO VA RUNTSO MF ZEMSKOV VM KURNOSOVA LV RUSAKOVICH MA TOPCHIEV NP FRADKIN MI CHUIKIN EI TUGAENKO VY GROS M GRENIER I BAZERBACHI AR LAVIGNE JM OLIVE JF
Citation
Vv. Akimov et al., THE LIGHT-CURVE OF THE GEMINGA GAMMA-RAY PULSAR AT 400-4000 MEV ACCORDING TO GAMMA-1 TELESCOPE DATA, Astronomy letters, 19(4), 1993, pp. 229-230
Citations number
8
Categorie Soggetti
Astronomy & Astrophysics
Journal title
Astronomy letters → ACNP
ISSN journal
10637737
Volume
19
Issue
4
Year of publication
1993
Pages
229 - 230
Database
ISI
SICI code
1063-7737(1993)19:4<229:TLOTGG>2.0.ZU;2-T
Abstract
Using Gamma 1 telescope data, we obtained the light curve of Geminga, with two peaks separated by 0.5 +/- 0.03 of the period. The light curv e is clearly defined for gamma energies above 400 MeV. The upper limit (1sigma) of the pulsed flux for energies 50-300 MeV equals 6 . 10(-7) cm-2 sec 1. For energies above 300 MeV, the spectral index of the pul sed component is 1.1 (+ 1.1/-0.3), and the integrated flux equals (1.1 +/- 0.3) . 10(-6) cm-2 sec-1.