Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985ssrv...40..249t&link_type=abstract
(ESA, ESLAB Symposium on X-Ray Astronomy in the EXOSAT Era, 18th, The Hague, Netherlands, Nov. 5-9, 1984) Space Science Reviews
Astronomy and Astrophysics
Astronomy
10
Neutron Stars, Spaceborne Astronomy, Visible Spectrum, X Ray Sources, Black Body Radiation, Bursts, Eddington Approximation, Exosat Satellite, Light Curve, Spectral Energy Distribution, Spectrum Analysis, Stellar Spectrophotometry, Temporal Distribution, X Ray Spectra
Scientific paper
During coordinated observations of 2S1636-536 with EXOSAT, Tenma and the 1.4-meter Danish telescope at La Silla, a single burst was detected at all three observatories. The burst was bright with a peak flux of 6 x 10 to the 8th ergs/sq cm per s and rapid expansion of the blackbody radius. EXOSAT and Tenma agree closely in the values of blackbody radius, temperature and flux, which are very similar to the three bursts recently reported by Tenma which appear to reach the Eddington flux limit at their peak. Preliminary analysis of the X-ray and optical timing data reveal that this burst is unusual, in having a sharp leading edge in both X-ray and optical data, and a very short X-ray-optical delay compared with those previously observed. If confirmed, this result puts significant restraints on the location of the optical reprocessing site.
Breedon Lorraine M.
Courvoisier Th.
Inoue Hajime
Ohashi Takuma
Turner Martin J. L.
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