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Showing 1997 · astro-phShow all
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astro-ph1997
Evidence for Diverse Optical Emission from Gamma-Ray Burst Sources
H. Pedersen, A. O. Jaunsen, T. Grav +25
Optical Transients from gamma-ray burst sources, in addition to offering a distance determination, convey important information on the physics of the emission mechanism, and perhap…
astro-ph1997
BeppoSAX/PDS Observation of Vela X-1
M. Orlandini, D. Dal Fiume, L. Nicastro +2
Vela X-1 has been observed by the Italian/Dutch X-ray satellite BeppoSAX during its Science Verification Phase. During the ~ 50 ksec observation (orbital phases 0.27-0.34) two diff…
astro-ph1997
A BeppoSAX observation of 3C273: broadband spectrum and detection of a low-energy absorption feature
P. Grandi, M. Guainazzi, T. Mineo +12
We report the results of a 3C273 observation performed during the Science Verification Phase (SVP) of the BeppoSax satellite. The broad-band spectrum is well represented by a power…