GCN Circular 950
Subject
GRB 010214: X-Ray afterglow
Date
2001-02-20T15:50:12Z (24 years ago)
From
Angelo Antonelli at Obs. Astro. di Roma <angelo@coma.mporzio.astro.it>
F. Frontera, C. Guidorzi, Universita' di Ferrara, Ferrara;
L.A. Antonelli, Osservatorio Astronomico di Roma, Rome;
G. Tassone, D. Ricci, L. Bruca, BeppoSAX Science Operations Center,
Telespazio, Rome; M. Capalbi, BeppoSAX Science Data Center, Rome;
R. Kaptein, E. Kulkeers, Space Research Organization Netherlands,
Utrecht and L. Piro, Istituto di Astrofisica Spaziale, CNR, Rome;
report:
"GRB 010214 (another ``Valentine's Day Burst'') was observed with
the Narrow Field Instruments (NFI) on board BeppoSAX from Feb. 14.62
to Feb. 16.52 UT (starting about 6 hrs after the burst trigger time;
Gandolfi, GCN #933) . In the 2-10 keV image from MECS units 2 and
3, a fading point source (1SAX J174058+4834.6) is detected within
the WFC error circle (Gandolfi GCN #933). The source position is
R.A. = 17h40m58s, Decl. = +48d34'37" (Eq. 2000) with 1 arcmin error
radius. The centroid position is consistent with the preliminary
NFI analysis reported by Gandolfi (GCN #937).
In the first 12,000 s the source had a 2-10 keV flux of about 6E-13
erg/cmE2/s, while a 2-sigma upper limit of about 5e-14 erg/cmE2/s
was derived in the last part of the observation. We conclude that
1SAX J174058+4834.6 is the X-ray afterglow of GRB 010214. The source
fading appears faster than usual, with a power-law index of about 1.6."
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