Unusually rapid variability of the GRB000301C optical afterglow

N. Masetti; C. Bartolini; S. Bernabei; A. Guarnieri; E. Palazzi; E. Pian; A. Piccioni; A.J. Castro-Tirado; J.M.C. Ceron; L. Verdes-Montenegro; R. Sagar; V. Mohan; A.K. Pandey; S.B. Pandey; H. Bock; J. Greiner; S. Benetti; R.A.M.J. Wijers; G.M. Beskin; J. Gorosabel

Unusually rapid variability of the GRB000301C optical afterglow

N. Masetti, C. Bartolini, S. Bernabei, A. Guarnieri, E. Palazzi, E. Pian, A. Piccioni, A.J. Castro-Tirado, J.M.C. Ceron, L. Verdes-Montenegro, R. Sagar, V. Mohan, A.K. Pandey, S.B. Pandey, H. Bock, J. Greiner, S. Benetti, R.A.M.J. Wijers, G.M. Beskin, J. Gorosabel

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

We present BVRI light curves of the afterglow of GRB000301C, one of the brightest ever detected at a day time scale interval after GRB trigger. The monitoring started 1.5 days after the GRB and ended one month later. Inspection of the extremely well sampled R band light curve and comparison with BVI data has revealed complex behavior, with a long term flux decrease and various short time scale features superimposed. These features are uncommon among other observed afterglows. and might trace either intrinsic variability within the relativistic shock (re-acceleration and re-energization) or inhomogeneities in the medium in which the shock propagates.

Original language	English
Journal	Astronomy and Astrophysics
Volume	359
Issue number	3
Pages (from-to)	L23-L26
ISSN	0004-6361
Publication status	Published - 2000

Keywords

gamma rays : bursts

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Masetti, N., Bartolini, C., Bernabei, S., Guarnieri, A., Palazzi, E., Pian, E., Piccioni, A., Castro-Tirado, A. J., Ceron, J. M. C., Verdes-Montenegro, L., Sagar, R., Mohan, V., Pandey, A. K., Pandey, S. B., Bock, H., Greiner, J., Benetti, S., Wijers, R. A. M. J., Beskin, G. M., & Gorosabel, J. (2000). Unusually rapid variability of the GRB000301C optical afterglow. Astronomy and Astrophysics, 359(3), L23-L26.

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title = "Unusually rapid variability of the GRB000301C optical afterglow",

abstract = "We present BVRI light curves of the afterglow of GRB000301C, one of the brightest ever detected at a day time scale interval after GRB trigger. The monitoring started 1.5 days after the GRB and ended one month later. Inspection of the extremely well sampled R band light curve and comparison with BVI data has revealed complex behavior, with a long term flux decrease and various short time scale features superimposed. These features are uncommon among other observed afterglows. and might trace either intrinsic variability within the relativistic shock (re-acceleration and re-energization) or inhomogeneities in the medium in which the shock propagates.",

keywords = "gamma rays : bursts",

author = "N. Masetti and C. Bartolini and S. Bernabei and A. Guarnieri and E. Palazzi and E. Pian and A. Piccioni and A.J. Castro-Tirado and J.M.C. Ceron and L. Verdes-Montenegro and R. Sagar and V. Mohan and A.K. Pandey and S.B. Pandey and H. Bock and J. Greiner and S. Benetti and R.A.M.J. Wijers and G.M. Beskin and J. Gorosabel",

year = "2000",

language = "English",

volume = "359",

pages = "L23--L26",

journal = "Astronomy and Astrophysics",

issn = "0004-6361",

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Masetti, N, Bartolini, C, Bernabei, S, Guarnieri, A, Palazzi, E, Pian, E, Piccioni, A, Castro-Tirado, AJ, Ceron, JMC, Verdes-Montenegro, L, Sagar, R, Mohan, V, Pandey, AK, Pandey, SB, Bock, H, Greiner, J, Benetti, S, Wijers, RAMJ, Beskin, GM & Gorosabel, J 2000, 'Unusually rapid variability of the GRB000301C optical afterglow', Astronomy and Astrophysics, vol. 359, no. 3, pp. L23-L26.

TY - JOUR

T1 - Unusually rapid variability of the GRB000301C optical afterglow

AU - Masetti, N.

AU - Bartolini, C.

AU - Bernabei, S.

AU - Guarnieri, A.

AU - Palazzi, E.

AU - Pian, E.

AU - Piccioni, A.

AU - Castro-Tirado, A.J.

AU - Ceron, J.M.C.

AU - Verdes-Montenegro, L.

AU - Sagar, R.

AU - Mohan, V.

AU - Pandey, A.K.

AU - Pandey, S.B.

AU - Bock, H.

AU - Greiner, J.

AU - Benetti, S.

AU - Wijers, R.A.M.J.

AU - Beskin, G.M.

AU - Gorosabel, J.

PY - 2000

Y1 - 2000

N2 - We present BVRI light curves of the afterglow of GRB000301C, one of the brightest ever detected at a day time scale interval after GRB trigger. The monitoring started 1.5 days after the GRB and ended one month later. Inspection of the extremely well sampled R band light curve and comparison with BVI data has revealed complex behavior, with a long term flux decrease and various short time scale features superimposed. These features are uncommon among other observed afterglows. and might trace either intrinsic variability within the relativistic shock (re-acceleration and re-energization) or inhomogeneities in the medium in which the shock propagates.

AB - We present BVRI light curves of the afterglow of GRB000301C, one of the brightest ever detected at a day time scale interval after GRB trigger. The monitoring started 1.5 days after the GRB and ended one month later. Inspection of the extremely well sampled R band light curve and comparison with BVI data has revealed complex behavior, with a long term flux decrease and various short time scale features superimposed. These features are uncommon among other observed afterglows. and might trace either intrinsic variability within the relativistic shock (re-acceleration and re-energization) or inhomogeneities in the medium in which the shock propagates.

KW - gamma rays : bursts

M3 - Journal article

SN - 0004-6361

VL - 359

SP - L23-L26

JO - Astronomy and Astrophysics

JF - Astronomy and Astrophysics

IS - 3

ER -

Unusually rapid variability of the GRB000301C optical afterglow

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