J/A+A/535/A57 g'r'i'z'JH light curves of GRB 091127 (Filgas+, 2011)
GRB 091127: The cooling break race on magnetic fuel.
Filgas R., Greiner J., Schady P., Kruehler T., Updike A.C., Klose S.,
Nardini M., Kann D.A., Rossi A., Sudilovsky V., Afonso P.M.J., Clemens C.,
Elliott J., Nicuesa Guelbenzu A., Olivares E. F., Rau A.
<Astron. Astrophys. 535, A57 (2011)>
=2011A&A...535A..57F 2011A&A...535A..57F
ADC_Keywords: Gamma rays - Photometry, infrared
Keywords: ISM: jets and outflows - X-rays: bursts -
X-rays: individuals: GRB 091127
Abstract:
Using high-quality, broad-band afterglow data for GRB 091127, we
investigate the validity of the synchrotron fireball model for
gamma-ray bursts, and infer physical parameters of the
ultra-relativistic outflow.
We used multi-wavelength (NIR to X-ray) follow-up observations
obtained with GROND simultaneously in the g'r'i'z' JH filters and the
XRT onboard the Swift satellite in the 0.3 to 10keV energy range. The
resulting afterglow light curve is of excellent accuracy with relative
photometric errors as low as 1%, and the spectral energy distribution
is well-sampled over 5 decades in energy. These data present one of
the most comprehensive observing campaigns for a single GRB afterglow
and allow us to test several proposed emission models and outflow
characteristics in unprecedented detail.
Objects:
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RA (2000) DE Designation(s)
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02 26 19.87 -18 57 08.6 GRB 091127 = GRB 091127
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
phot.dat 30 718 g'r'i'z' JH photometric data
(tables 3 and 4 of the paper)
table5.dat 91 5 Secondary standards in the GRB field in the
GROND filter bands used for the calibration
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Byte-by-byte Description of file: phot.dat
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Bytes Format Units Label Explanations
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1- 2 A2 --- Band [griz' JH] Band
4- 13 F10.4 ks Tmid-T0 Time since GRB trigger
15- 18 I4 s Exp Exposure time
20 A1 --- l_mag Limit flag on mag
21- 25 F5.2 mag mag Brightness in band "Band" (1)
27- 30 F4.2 mag e_mag ? rms uncertainty on mag (2)
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Note (1): Corrected for Galactic foreground reddening. Converted to AB
magnitudes for consistency with Table 3.
Note (2): For JH, for the SED fitting, the additional error of the
absolute calibration of 0.05 mag was added.
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Byte-by-byte Description of file: table5.dat
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Bytes Format Units Label Explanations
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1 I1 --- Star Star sequential number
3- 4 I2 h RAh Right ascension (J2000)
6- 7 I2 min RAm Right ascension (J2000)
9- 13 F5.2 s RAs Right ascension (J2000)
15 A1 --- DE- Declination sign (J2000)
16- 17 I2 deg DEd Declination (J2000)
19- 20 I2 arcmin DEm Declination (J2000)
22- 25 F4.1 arcsec DEs Declination (J2000)
27- 31 F5.2 mag g'mag Brightness in g' band (AB system)
33- 36 F4.2 mag e_g'mag rms uncertainty on g'mag
38- 42 F5.2 mag r'mag Brightness in r' band (AB system)
44- 47 F4.2 mag e_r'mag rms uncertainty on r'mag
49- 53 F5.2 mag i'mag Brightness in i' band (AB system)
55- 58 F4.2 mag e_i'mag rms uncertainty on i'mag
60- 64 F5.2 mag z'mag Brightness in z' band (AB system)
66- 69 F4.2 mag e_z'mag rms uncertainty on z'mag
71- 75 F5.2 mag Jmag ?=- Brightness in J band (AB system)
77- 80 F4.2 mag e_Jmag ? rms uncertainty on Jmag
82- 86 F5.2 mag Hmag ?=- Brightness in H band (AB system)
88- 91 F4.2 mag e_Hmag ? rms uncertainty on Hmag
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 20-Oct-2011