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X/gamma-ray measurements of the faint GRB 020321

J. J. M. in 't Zand·L. Kuiper·J. Heise·L. Amati·E. Costa·M. Feroci·F. Frontera·G. Gandolfi·L. Nicastro·L. Piro·P. Rodriguez-Pascual·M. Santos-Lleo·N. Schartel
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Abstract

GRB 020321 is a faint GRB that received wide follow-up attention in X-rays (BeppoSAX/NFI, Chandra/ACIS-S, XMM-Newton), radio (ATCA) and optical (ESO, HST). We identify a weak X-ray afterglow by a combined study of the Chandra and XMM-Newton observations. Its decay index of 1.2 is typical for GRB afterglows. Inside the 4"-accurate error box there is a weak optical counterpart candidate with a much shallower decay index.

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J. J. M. in 't Zand, L. Kuiper, J. Heise, L. Amati, E. Costa, M. Feroci, F. Frontera, G. Gandolfi, L. Nicastro, L. Piro, P. Rodriguez-Pascual, M. Santos-Lleo, N. Schartel. 2003-05-20. X/gamma-ray measurements of the faint GRB 020321. https://arxiv.org/abs/astro-ph/0305359

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