J/MNRAS/406/2473 Photometry of GRB 071025 (Perley+, 2010)
Evidence for supernova-synthesized dust from the rising afterglow of
GRB071025 at z ∼ 5.
Perley D.A., Bloom J.S., Klein C.R., Covino S., Minezaki T., Wozniak P.,
Vestrand W.T., Williams G.G., Milne P., Butler N.R., Updike A.C.,
Kruhler T., Afonso P., Antonelli A., Cowie L., Ferrero P., Greiner J.,
Hartmann D.H., Kakazu Y., Yoldas A.K., Morgan A.N., Price P.A.,
Prochaska J.X., Yoshii Y.
<Mon. Not. R. Astron. Soc., 406, 2473-2487 (2010)>
=2010MNRAS.406.2473P 2010MNRAS.406.2473P
ADC_Keywords: Gamma rays ; Photometry, infrared
Keywords: dust, extinction - gamma-ray burst: general -
gamma-ray burst: individual: 071025
Abstract:
We present observations and analysis of the broad-band afterglow of
Swift GRB 071025. Using optical and infrared (RIYJHK) photometry, we
derive a photometric redshift of 4.4<z<5.2; at this redshift our
simultaneous multicolour observations begin at ∼30s after the
gamma-ray burst trigger in the host frame, during the initial rising
phase of the afterglow.
Description:
At 04:08:54 UT on 2007 October 25, the Burst Alert Telescope on-board
Swift detected GRB 071025 and performed a rapid slew to the GRB
location, beginning observations with the X-Ray Telescope at 146s
after the trigger.
The robotic IR observatory PAIRITEL consists of the 1.3-m Peters
Telescope at Mt. Hopkins, Arizona, formerly used for the Two-Micron
All-Sky Survey.
PAIRITEL responded to the initial Gamma-ray burst Coordinate Network
alert at 74.3s and slewed immediately to the source. Observations
began at 162s and continued uninterrupted until 3812s, when due to a
problem with the observing queue PAIRITEL temporarily slewed to
another location. Observations resumed at 9108s and continued for
another 2h.
Objects:
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RA (2000) DE Designation(s)
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23 40 15.6 +31 47 03 GRB 071025 = GRB 071025
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File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 61 39 PAIRITEL observations of GRB 071025
table3.dat 67 197 Additional photometry of GRB 071025
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Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 7 F7.1 s Tstart Star time measured from the Swift trigger
(UT 2007 October 25 04:08:54)
9- 15 F7.1 s Tend End time measured from the Swift trigger
(Ut 2007 October 25 04:08:54)
17- 22 F6.1 s Texp Exposure time
24- 29 F6.3 mag Jmag 2MASS J magnitude (1)
31- 35 F5.3 mag e_Jmag rms uncertainty on Jmag
37- 42 F6.3 mag Hmag 2MASS H magnitude (1)
44- 48 F5.3 mag e_Hmag rms uncertainty on Hmag
50- 55 F6.3 mag Ksmag 2MASS Ks magnitude (1)
57- 61 F5.3 mag e_Ksmag rms uncertainty on Ksmag
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Note (1): Magnitudes are in the 2MASS (Vega) system and not corrected
for Galactic extinction.
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Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 11 A11 --- Tel Telescope
13- 20 F8.1 s Tmid Exposure mid-time measured from the Swift
trigger (UT 2007 Oct 25 04:08:54)
22- 27 F6.1 s Texp Exposure time
29- 33 A5 --- Filt Filter (1)
35 A1 --- fDet [dx] Detection flag (2)
37 A1 --- l_mag Limit flag on mag (5)
38- 43 F6.3 mag mag Magnitude in filter (3)
45- 49 F5.3 mag e_mag ?=- rms uncertainty on mag
51 A1 --- l_Flux Limit flag on Flux (5)
52- 59 F8.3 uJy Flux Flux in filter (4)
61- 67 F7.3 uJy e_Flux ?=- rms uncertainty on Flux
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Note (1): JHKYRI K'KsV magnitudes are in the Vega system,
griz magnitudes are in the SDSS (approximately AB) system
Note (2): Detection flag as follows:
d = indicates a detection
x = detection not used in our primary light curve fitting
Note (3): No Galactic extinction correction has been applied to magnitudes.
Note (4): Reported fluxes are corrected for E_(B-V)=0.074mag.
Note (5): Limiting values are 3-sigma. Some <3-sigma detections are
reported, as in many cases these are marginal detections that impose
a useful constraint on the light curve or SED.
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 07-Mar-2011