排序方式: 共有6条查询结果,搜索用时 15 毫秒
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R. Hudec Z. Ceplecha J. Ehrlich J. Borovi
ka K. Hurley J.-L. Ateia C. Barat M. Niel G. Vedrenne I.V. Estulin A.K. Kuznetsov V.M. Zenchenko T.L. Cline U. Desai W.D. Evans E. Fenimore R. Klebesadel J. Laros 《Advances in Space Research (includes Cospar's Information Bulletin, Space Research Today)》1984,3(10-12)
The preliminary results from optical search for light pulses associated with gamma ray bursts by means of the Czechoslovak Fireball Network plate collection at the Ondřejov observatory are given. Optical monitoring represents more than 7700 hours, but no real optical counterpart was found. Problems associated with the optical search for gamma ray bursts are discussed. 相似文献
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A.V. Diyachkov I.V. Estulin N.G. Havenson A.V. Kuznetsov V.M. Zenchenko C. Barat G. Chambon K. Hurley M. Niel 《Advances in Space Research (includes Cospar's Information Bulletin, Space Research Today)》1983,3(4):211-219
This catalogue includes 49 confirmed gamma-ray bursts recorded by the Signe-2M experiment over the period September 1978 – January 1980. This Soviet-French experiment was launched on the three Soviet spacecraft Venera-11, Venera-12, and PROGNOZ-7. The PROGNOZ-7 spacecraft recorded bursts from November 1978 to May 1979. The Venera interplanetary spacecraft operated with short interruptions.The catalogue gives the histories of selected bursts with a time resolution of 1/64 s, which have never appeared in the literature. These time histories demonstrate the difference between and temporal peculiarities of these events. Table 1 summarizes precise burst arrival times at the spacecraft and the coordinates of the spacecraft at those times. 相似文献
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C. Barat M. Niel R.I. Hayles K. Hurley G. Vedrenne I.V. Estulin I.G. Mitrofanov V.S. Dolidze V.M. Zenchenko 《Advances in Space Research (includes Cospar's Information Bulletin, Space Research Today)》1984,3(10-12)
The Franco-Soviet Signe experiments on Venera 11 and Venera 12 allow a spectral analysis of gamma-ray bursts with a time resolution of 250 ms. Evidence is presented for i) short annihilation flashes of up to 20 photons cm−2s−1 and ii) rapid variations of the continuum, from a study of the intense 4 November 1978 event. 相似文献
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R.I. Hayles C. Barat K. Hurley M. Niel G. Vedrenne I.V. Estulin V.G. Kurt A.V. Kuznetsov V.M. Zenchenko 《Advances in Space Research (includes Cospar's Information Bulletin, Space Research Today)》1984,3(10-12)
A study of the morphology of 14 short ( 1 s) gamma ray bursts observed by the Franco Soviet SIGNE detectors onboard the VENERA spacecraft between 1978 and 1982 is presented. We find two major groups of short bursts characterised not only by their different durations ( 1 s and 100 ms respectively), but also by different e-folding rise and decay times. A study of the time history of the impulsive portion of the 1979 March 5 event at 2 ms resolution shows evidence for a previously undiscovered 23ms quasi periodicity. These results are discussed in the context of neutron star models for gamma ray bursters. 相似文献
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