Astronomy and Astrophysics – Astrophysics
Scientific paper
Oct 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..587..116i&link_type=abstract
GAMMA 2001: Gamma-Ray Astrophysics 2001. AIP Conference Proceedings, Volume 587, pp. 116-120 (2001).
Astronomy and Astrophysics
Astrophysics
1
Cataclysmic Binaries, Symbiotic Stars, Gamma-Ray Sources, Gamma-Ray Bursts
Scientific paper
The evolution of the γ-ray emission from GRO J0422+32 after its main outburst of August 1992 was followed by COMPTEL during 25 observation periods (VPs) between August 1992 and August 1997, where NPer 92 was in the FoV of COMPTEL, and for 3 VPs preceding the nova outburst. It is found that the NPer 92 γ-ray emission is greatly confined to energies between 1.5 and 2.0 MeV. This emission is prominent during observations that correspond to phases between 0.0 and 0.5 of the ~120 days period discovered in the nova optical emission. This periodical activity of the nova in form of mini-outbursts is supported by the detection of the γ-ray emission from GRO J0422+32 in seven episodes up to ~1800 days (August 1997) after the main outburst, and by the All Sky Monitor's (ASM, Rossi XTE) detection of X-ray mini-outbursts (four episodes). In one episode we have succeeded to derive a contemporaneous spectrum based on the measurements by COMPTEL, ASM and BATSE. The plausible mechanisms of the GRO J0422+32 periodical mini-outbursts and of its characteristic γ-ray emission are discussed. The possibility of the system being a triple is also evaluated. .
Haberl Franck
Iyudin Anatoli F.
No associations
LandOfFree
Detection of the γ-ray emission from the X-ray nova GRO J0422+32 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Detection of the γ-ray emission from the X-ray nova GRO J0422+32, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Detection of the γ-ray emission from the X-ray nova GRO J0422+32 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1101099