J/A+A/562/A29 GRB 100814A GROND and UVOT light curves (Nardini+, 2014)
Afterglow rebrightenings as a signature of a long-lasting central engine
activity? The emblematic case of GRB 100814A.
Nardini M., Elliott J., Filgas R., Schady P., Greiner J., Kruhler T.,
Klose S., Afonso P., Kann D.A., Nicuesa Guelbenzu A., Olivares E.F.,
Rau A., Rossi A., Sudilovsky V., Schmidl S.
<Astron. Astrophys. 562, A29 (2014)>
=2014A&A...562A..29N 2014A&A...562A..29N
ADC_Keywords: Gamma rays ; Photometry, infrared ; Photometry, ultraviolet
Keywords: gamma-rays burst: individual: GRB 100814A - techniques: photometric -
radiation mechanisms: non-thermal
Abstract:
In the past few years the number of well-sampled optical to
near-infrared (NIR) light curves of long gamma-ray bursts (GRBs) has
greatly increased, particularly due to simultaneous multi-band imagers
such as GROND. Combining these densely sampled ground-based data sets
with the Swift UVOT and XRT space observations unveils a much more
complex afterglow evolution than what was predicted by the most
commonly invoked theoretical models. GRB 100814A represents a
remarkable example of these interesting well-sampled events, showing a
prominent late-time rebrightening in the optical to NIR bands and a
complex spectral evolution. This represents a unique laboratory to
test the different afterglow emission models.
Here we study the nature of the complex afterglow emission of
GRB 100814A in the framework of different theoretical models.
Moreover, we compare the late-time chromatic rebrightening with those
observed in other well-sampled long GRBs.
Description:
GROND g',r',i',z',J,H,Ks and UVOT v, b, u, w1, w2, m2 bands photometry
of GRB 100814A. Each file contains 4 colums with: mid-time of the
observation [s after the GRB trigger], error [s], AB magnitude not
corrected for extinction, magnitude error.
Objects:
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RA (2000) DE Designation(s)
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01 29 53.61 -17 59 43.6 GRB 100814A = GRB 100814A
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
grond.dat 51 927 GRB 100814A GROND g', r', i', z', J, H, Ks photometry
uvot.dat 43 104 GRB 100814A UVOT v, b, u, w1, w2, m2 photometry
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See also:
J/ApJ/626/L5 : Photometric observations of GRB 041006 (Stanek+, 2005)
J/ApJ/641/L13 : Light-curve data for GRB 030329 (Gorosabel+, 2006)
J/ApJ/654/L25 : Light-curve data for GRB 050319 (Huang+, 2007)
J/ApJ/678/1127 : Optical photometry of GRB 070610 (Kasliwal+, 2008)
J/ApJ/691/723 : BVIJHKs observations of GRB 080319B (Bloom+, 2009)
J/ApJ/720/862 : Afterglow light curve of GRB 090926A (Rau+, 2010)
J/MNRAS/406/2473 : Photometry of GRB 071025 (Perley+, 2010)
J/A+A/531/A39 : g'r'i'z'JHKs light curves of GRB 081029 (Nardini+, 2011)
J/A+A/535/A57 : g'r'i'z'JH light curves of GRB 091127 (Filgas+, 2011)
J/MNRAS/421/1874 : GRB 100901A and GRB 100906A light curves (Gorbovskoy+, 2012)
J/MNRAS/426/2 : GRB 091018 Optical/NIR photometry (Wiersema+, 2012)
J/ApJ/743/154 : GRB 110205A + 110213A multiband photometry (Cucchiara+ 2013)
J/MNRAS/421/2692 : GRB 080310 optical/near-IR observations (Littlejohns+, 2013)
Byte-by-byte Description of file: grond.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- Band Observed band
4- 19 F16.7 s Time Time after trigger
22- 28 F7.2 s e_Time Error in Time
30- 39 F10.7 mag mag Magnitude in Band in (AB), not corrected for
extinction
41- 51 F11.9 mag e_mag Error in mag
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Byte-by-byte Description of file: uvot.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- Band Observed band
6- 13 F8.1 s Time Time after trigger
17- 22 F6.1 s e_Time Error in Time
24 A1 --- l_mag Limit flag on mag
25- 29 F5.2 mag mag Magnitude in Band in (AB), not corrected for
extinction
33- 36 F4.2 mag e_mag ? Error in mag (lower limit)
40- 43 F4.2 mag E_mag ? Error on mag (upper limit)
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Acknowledgements:
Marco Nardini, marco.nardini(at)unimib.it
(End) Patricia Vannier [CDS] 05-Dec-2013