Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 2004
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2004aspc..312..185n&link_type=abstract
Third Rome Workshop on Gamma-Ray Bursts in the Afterglow Era ASP Conference Series, Volume 312, Proceedings of the conference he
Astronomy and Astrophysics
Astronomy
Scientific paper
The 020410 event was detected with the BSAX-WFCs and its position disseminated within 4 hrs. In absense of BSAX-GRBM measurements, its GRB nature could be confirmed only weeks later through untriggered Konus-Wind γ-ray measurements. It turns out that GRB 020410 is an extreme example of a GRB: it lasted about 1600 s, it had a fluence that ranks in the top 5% of the BSAX sample and it was soft with a 2-10 to 50-300 keV fluence ratio of 0.5. Two BSAX-NFI ToO observations revealed a slowly fading X-ray afterglow whose extrapolated 2-10 keV flux at 11h after the burst of 7.9×10-12 erg s-1 cm-2 is the highest of the BSAX sample. R-band optical data led to the (late) discovery of a relatively faint optical afterglow which shows evidence for reflaring.
Amati Lorenzo
Castro-Tirado Alberto
Costa Edgar
Feroci Marco
Frontera Filippo
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