J/A+A/560/A70 GRB 100621A unusual afterglow (Greiner+, 2013)
The unusual afterglow of the gamma-ray burst 100621A.
Greiner J., Kruhler T., Nardini M., Filgas R., Moin A., de Breuck C.,
Montenegro-Montes F., Lundgren A., Klose S., Fonso P.M.J., Bertoldi F.,
Elliott J., Kann D.A., Knust F., Menten K., Nicuesa Guelbenzu A.,
Olivares E.F., Rau A., Rossi A., Schady P., Schmidl S., Siringo G.,
Spezzi L., Sudilovsky V., Tingay S.J., Updike A.C., Wang Z., Weiss A.,
Wieringa M., Wyrowski F.
<Astron. Astrophys. 560, A70 (2013)>
=2013A&A...560A..70G 2013A&A...560A..70G
ADC_Keywords: Gamma rays ; Photometry, SDSS ; Photometry, infrared
Keywords: (stars) gamma-ray burst: general -
(stars) gamma-ray burst: individual: GRB 100621A -
techniques: photometric
Abstract:
With the afterglow of GRB 100621A being the brightest detected so far
in X-rays, and superb GROND coverage in the optical/near-infrared
during the first few hours, an observational verification of basic
fireball predictions seemed possible.
In order to constrain the broad-band spectral energy distribution of
the afterglow of GRB 100621A, dedicated observations were performed in
the optical/near-infrared with the 7-channel Gamma-Ray Burst Optical
and Near-infrared Detector (GROND) at the 2.2m MPG/ESO telescope,
in the sub-millimeter band with the large bolometer array LABOCA at
APEX, and at radio frequencies with ATCA. Utilizing also Swift X-ray
observations, we attempt an interpretation of the observational data
within the fireball scenario.
Description:
7-filter GROND (Gamma-Ray burst Optical and Near-infrared Detector
at the 2.2m MPG/ESO telescope) data of optical/near-infrared afterglow
of GRB 100621A obtained over several days after the gamma-ray trigger.
The data contain the sum of afterglow and host light; the relative
contributions are different in each filter. The magnitude errors are
statistical only, and do not include the uncertainty based on absolute
calibration. These are g=0.07mag, r/i/z=0.04mag, J/H=0.05mag, K=0.07mag.
Objects:
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RA (2000) DE Designation(s)
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21 01 13.12 -51 06 22.5 GRB 100621A = GRB 100621A
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
g100621g.dat 54 13 GROND g'-filter
g100621r.dat 54 25 GROND r'-filter
g100621i.dat 54 31 GROND i'-filter
g100621z.dat 54 40 GROND z'-filter
g100621j.dat 54 127 GROND J-filter
g100621h.dat 54 124 GROND H-filter
g100621k.dat 54 100 GROND K-filter
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Byte-by-byte Description of file: g100621?.dat
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Bytes Format Units Label Explanations
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1- 6 I6 s Tmid Mid-time of observation
9- 12 I4 s Dur Duration of observation
17- 21 F5.2 mag mag AB magnitude in filter
25- 28 F4.2 mag e_mag AB magnitude error
33- 39 F7.2 uJy Flux Flux
41- 46 F6.2 uJy e_Flux Negative flux error
49- 54 F6.2 uJy E_Flux Positive flux error
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Acknowledgements:
Jochen Greiner, jcg(at)xray.mpe.mpg.de
(End) Patricia Vannier [CDS] 13-Jun-2013