Sloan Digital Sky Survey Multicolor Observations of GRB 010222 | Zendy

Brian Lee | Zendy; D. L. Tucker | Zendy; D. E. vanden Berk | Zendy; B. Yanny | Zendy; D. Reichart | Zendy; Jennifer Adelman | Zendy; Bing Chen | Zendy; M. Harvanek | Zendy; A. A. Henden | Zendy; Željko Ivezić | Zendy; S. J. Kleinman | Zendy; D. Q. Lamb | Zendy; Dan Long | Zendy; R. McMillan | Zendy; Peter R. Newman | Zendy; A. Nitta | Zendy; Povilas Palunas | Zendy; Donald P. Schneider | Zendy; S. Snedden | Zendy; D. G. York | Zendy; John W. Briggs | Zendy; J. Brinkmann | Zendy; István Csabai | Zendy; G. S. Hennessy | Zendy; Stephen Kent | Zendy; Robert H. Lupton | Zendy; Heidi Jo Newberg | Zendy; Chris Stoughton | Zendy

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Sloan Digital Sky Survey Multicolor Observations of GRB 010222

Author(s) -

Brian Lee,

D. L. Tucker,

D. E. vanden Berk,

B. Yanny,

D. Reichart,

Jennifer Adelman,

Bing Chen,

M. Harvanek,

A. A. Henden,

Željko Ivezić,

S. J. Kleinman,

D. Q. Lamb,

Dan Long,

R. McMillan,

Peter R. Newman,

A. Nitta,

Povilas Palunas,

Donald P. Schneider,

S. Snedden,

D. G. York,

John W. Briggs,

J. Brinkmann,

István Csabai,

G. S. Hennessy,

Stephen Kent,

Robert H. Lupton,

Heidi Jo Newberg,

Chris Stoughton

Publication year - 2001

Publication title -

the astrophysical journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.376

H-Index - 489

eISSN - 1538-4357

pISSN - 0004-637X

DOI - 10.1086/322981

Subject(s) - sky , gamma ray burst , astrophysics , astronomy , environmental science , computer science , physics

The discovery of an optical counterpart to GRB010222 (detected by BeppoSAX;Piro 2001) was announced 4.4 hrs after the burst by Henden (2001a). The SloanDigital Sky Survey's 0.5m photometric telescope (PT) and 2.5m survey telescopewere used to observe the afterglow of GRB010222 starting 4.8 hours after theGRB. The 0.5m PT observed the afterglow in five, 300 sec g' band exposures overthe course of half an hour, measuring a temporal decay rate in this shortperiod of F_nu \propto t^{-1.0+/-0.5}. The 2.5m camera imaged the counterpartnearly simultaneously in five filters (u' g' r' i' z'), with r' = 18.74+/-0.02at 12:10 UT. These multicolor observations, corrected for reddening and theafterglow's temporal decay, are well fit by the power-law F_nu \proptonu^{-0.90+/-0.03} with the exception of the u' band UV flux which is 20% belowthis slope. We examine possible interpretations of this spectral shape,including source extinction in a star forming region.

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