Sloan Digital Sky Survey multicolor observations of GRB 010222
- Lee, B C
- Tucker, D L
- Vanden, Berk D E
- Yanny, B
- Reichart, D E
- Adelman, J
- Chen, B
- Harvanek, M
- Henden, A
- Ivezic, Z
- Kleinman, S
- Lamb, D
- Long, D
- Mcmillan, R
- Newman, P R
- Nitta, A
- Palunas, P
- Schneider, D P
- Snedden, S
- York, D
- Briggs, J W
- Brinkmann, J
- Csabai, I
- Hennessy, G S
- Kent, S
- Lupton, R
- Newberg, H J
- Stoughton, C
DOIAbstract
The discovery of an optical counterpart to GRB 010222 (detected by BeppoSAX) was announced 4.4 hr after the burst by Henden. The Sloan Digital Sky Survey's 0.5 m photometric telescope (PT) and 2.5 m survey telescope were used to observe the afterglow of GRB 010222 starting 4.8 hr after the gamma-ray burst. The 0.5 m PT observed the afterglow in five 300 s g*-band exposures over the course of half an hour, measuring a temporal decay rate in this short period of F-v proportional to t(-1.0 +/-0.5). The 2.5 m camera imaged the counterpart nearly simultaneously in five filters (u*, g*, r*, i*, z*), with r* = 18.74 +/- 0.02 at 12:10 UT. These multicolor observations, corrected for reddening and the afterglow's temporal decay, are well-fitted by t...
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