J/ApJ/690/163 The first Swift UV-Opt GRB afterglow catalog (Roming+, 2009)
The first Swift ultraviolet/optical telescope GRB afterglow catalog.
Roming P.W.A., Koch T.S., Oates S.R., Porterfield B.L., Vanden Berk D.E.,
Boyd P.T., Holland S.T., Hoversten E.A., Immler S., Marshall F.E.,
Page M.J., Racusin J.L., Schneider D.P., Breeveld A.A., Brown P.J.,
Chester M.M., Cucchiara A., De Pasquale M., Gronwall C., Hunsberger S.D.,
Kuin N.P.M., Landsman W.B., Schady P., Still M.
<Astrophys. J., 690, 163-188 (2009)>
=2009ApJ...690..163R 2009ApJ...690..163R
ADC_Keywords: Gamma rays ; Photometry, uvby ; Ultraviolet ; Surveys ; Redshifts
Mission_Name: Swift
Keywords: catalogs - gamma rays: bursts
Abstract:
We present the first Swift Ultraviolet/Optical Telescope (UVOT)
gamma-ray burst (GRB) afterglow catalog. The catalog contains data
from over 64000 independent UVOT image observations of 229 GRBs first
detected by Swift, the High Energy Transient Explorer 2 (HETE2), the
International Gamma-Ray Astrophysics Laboratory (INTEGRAL), and the
Interplanetary Network (IPN). The catalog covers GRBs occurring during
the period from 2005 January 17 to 2007 June 16 and includes ∼86% of
the bursts detected by the Swift Burst Alert Telescope (BAT). The
catalog provides detailed burst positional, temporal, and photometric
information extracted from each of the UVOT images. Positions for
bursts detected at the 3σ level are provided with a nominal
accuracy, relative to the USNO-B1 catalog, of ∼0.25". Photometry for
each burst is given in three UV bands, three optical bands, and a
"white" or open filter. Upper limits for magnitudes are reported for
sources detected below 3σ. General properties of the burst
sample and light curves, including the filter-dependent temporal
slopes, are also provided.
Description:
The UVOT utilizes seven broadband filters during the observation of
GRBs: uvw2 (1928Å), uvm2 (2246Å), uvw1 (2600Å), u (3465Å),
b (4392Å), v (5468Å) and white (3850Å). This catalog covers
UVOT observations of 229 GRB afterglows from 2005 January 17 to 2007
June 16. It includes bursts detected by Swift BAT, HETE2, INTEGRAL,
IPN, and observed by UVOT. A total of 211 BAT-detected bursts were
observed by the UVOT (after instrument turn on) representing 93% of
the BAT sample.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table3.dat 827 63315 Selected sample from the Swift/UVOT image mode
burst database
table4.dat 432 9402 Selected sample from the Swift/UVOT event mode
burst database
table5.dat 697 233 Selected sample from the Swift/UVOT burst catalog
+4 objects from table 4
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See also:
J/A+A/448/L9 : Position catalogue of Swift XRT afterglows (Moretti+, 2006)
J/AJ/133/1027 : Positions for 179 Swift X-ray afterglows (Butler+, 2007)
J/ApJ/654/L21 : R-band light curves of GRB 060206 and GRB 060210 (Stanek+,
2007)
J/ApJ/654/L25 : Light-curve data for GRB 050319 (Huang+, 2007)
J/ApJ/686/1209 : Optical properties of GRB afterglows (Melandri+, 2008)
J/ApJ/672/449 : GRB 061126 light curves (Perley+, 2008)
J/ApJS/175/179 : The BAT1 gamma-ray burst catalog (Sakamoto+, 2008)
J/MNRAS/397/1177 : Swift-XRT rlts of GRBs (Evans+, 2009)
http://gcn.gsfc.nasa.gov/gcn3_archive.html : GCN Circulars online archive
http://swift.gsfc.nasa.gov/docs/swift/results/uvot_grbcat/ : Swift UVOT online
Byte-by-byte Description of file: table3.dat
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Bytes Format Units Label Explanations
-------------------------------------------------------------------------------
1- 3 A3 --- --- [GRB]
4- 10 A7 --- GRB Object ID (YYMMDDA)
12- 21 F10.6 deg RAdeg Right ascension (J2000.0) (1)
23- 32 F10.6 deg DEdeg Declination (J2000.0) (1)
34- 39 F6.2 arcsec e_pos Positional uncertainty
41- 51 F11.1 s TrigT Time of burst trigger in mission
elapsed time (MET) (2)
53- 75 A23 --- TrigUT Time of burst trigger (UT)
77- 89 F13.3 s Time Time of middle of exposure in MET
(Tstart+Telp/2)
91-103 F13.3 s Tstart Time of start of exposure in MET (2)
105-117 F13.3 s Tstop Time of end of exposure in MET (2)
119-126 F8.3 s Exp Total exposure time with all correction
applied (3)
128-135 F8.3 s Telp Total elapsed time (Tstop-Tstart)
137-141 A5 --- Filt UVOT filter used (G1)
143 I1 --- Binn [1/2] Binning factor (1=1x1binning and
2=2x2binning)
145-148 F4.1 arcsec Ap Source aperture radius
150-156 F7.2 arcsec2 A(SR) Area of the source region (SR)
158-165 F8.2 arcsec2 A(BR) Area of the background region (BR)
167-171 F5.3 arcsec/pix PlateSc Image plate scale (error in the mean
plate scale is ±0.0005"/pix)
173-181 F9.2 ct ct(SR) Total number of counts in SR (source)
183-191 F9.2 ct e_ct(SR) ct(SR) error
193-201 F9.2 ct ct(BR) Total number of counts in BR
203-211 F9.2 ct e_ct(BR) ct(BR) error
213-221 F9.2 ct ct(5) Total number of counts in standard 5"
aperture
223-231 F9.2 ct e_ct(5) Binomial ct(5) error
233-243 E11.4 ct/s CR(SR) Count rate in SR (source region)
245-255 E11.4 ct/s e_CR(SR) Error in the SR total count rate
257-267 E11.4 ct/s/arcsec2 CR(BR) Total count rate in BR (background)
269-279 E11.4 ct/s/arcsec2 e_CR(BR) Error in the BR count rate
281-291 E11.4 ct/s/arcsec2 CR(bg) Global background rate (4)
293-303 E11.4 arcsec2 A(bg) Area of global background region
305-315 E11.4 ct/s CR(CLR) Total count rate in coincidence loss
region (CLR)
317-327 E11.4 ct/s e_CR(CLR) Error in the count rate of the CLR
329-333 F5.3 --- cf(CLR) Coincidence loss correction factor
(CLCF) for CLR (5)
335-339 F5.3 --- e_cf(CLR) Error in the CLR CLCF
341-345 F5.3 --- cf(BR) CLCF for BR
347-351 F5.3 --- e_cf(BR) Error in the BR CLCF
353-361 F9.2 ct CLC(SR) Coincidence loss corrected (CLC) counts
in SR (source region)
363-371 F9.2 ct e_CLC(SR) Error in the SR CLC counts
373-381 F9.2 ct CLC(BG) CLC counts in BR (ct(BR) x cf(BR))
383-391 F9.2 ct e_CLC(BG) Error in the BR CLC counts
393-403 E11.4 ct/s CLCR(SR) CLC raw count rate in SR (source)
405-415 E11.4 ct/s e_CLCR(SR) Error in the SR CLC raw count rate
417-427 E11.4 ct/s/arcsec2 CLCR(BR) CLC background surface count rate
429-439 E11.4 ct/s/arcsec2 e_CLCR(BR) Error in the CLC background surface
count rate
441-451 E11.4 ct/s ccCR(SR) Coincidence corrected net count rate in
SR
453-463 E11.4 ct/s e_ccCR(SR) Error in the coincidence corrected net
count rate
465-469 F5.3 --- ApCor Aperture correction between a 3" and 5"
aperture radius for the v filter
471-475 F5.3 --- e_ApCor 1σ error in ApCor
477-487 E11.4 ct/s CLCR CLC count rate used to calculate flux
and magnitude
489-499 E11.4 ct/s e_CLCR Error on the final CLC count rate
501-505 F5.2 mag mag ?=99 Magnitude of the source in the
UVOT system
507-511 F5.2 mag e_mag ?=99 1sigma error in magnitude
513-518 F6.1 --- SNR Signal-to-noise ratio
520-524 F5.2 mag/arcsec2 mag(bg) Sky magnitude in the UVOT system
526-530 F5.2 mag/arcsec2 e_mag(bg) 1sigma error in background magnitude
532-536 F5.2 mag magLim "N"-sigma limiting magnitude
538-540 F3.1 --- sigma [0-9] Chosen parameter for "N"
542-546 F5.2 mag mag(1) Magnitude at which the count rate is
one count per CCD frame
548-557 E10.3 cW/m2/nm Flam Flux density in erg/s/cm2/Å
559-568 E10.3 cW/m2/nm e_Flam 1sigma error in flux density
570-579 E10.3 --- Flam(bg) Flux density of the sky in
erg/s/cm2/Å/arcsec2 unit
581-590 E10.3 --- e_Flam(bg) 1sigma error in sky flux density
592-601 E10.3 cW/m2/nm FlamLim "N"-sigma limiting flux density in
erg/s/cm2/Å
603-612 E10.3 cW/m2/nm Flam(1) Flux density at which the count rate is
one count per frame
614-623 E10.3 mJy Fnu Flux density
625-634 E10.3 mJy e_Fnu 1sigma error in flux density
636-645 E10.3 mJy/arcsec2 Fnu(bg) Flux density of the sky
647-656 E10.3 mJy/arcsec2 e_Fnu(bg) 1sigma error in sky flux density
658-667 E10.3 mJy FnuLim "N"-sigma limiting flux density
669-678 E10.3 mJy Fnu(1) Flux density at which the count rate is
one count per frame time
680-689 F10.6 deg RAdegN ?=0 Right ascension (J2000) of closest
non-GRB source within 15"
691-700 F10.6 deg DEdegN ?=0 Declination (J2000) of closest
non-GRB source within 15"
702-706 F5.2 mag magN ?=99 Magnitude in the given UVOT band
of closest non-GRB source
708-717 F10.6 deg RAdegC ?=999 Centroided Right ascension
(J2000.0)
719-728 F10.6 deg DEdegC ?=999 Centroided declination (J2000.0)
730-734 F5.1 arcsec e_posC ?=-1 Centroided positional uncertainty
736 A1 --- Set [FT] Settling image flag (6)
738 A1 --- Asp [FT] Aspect error flag (7)
740 A1 --- Trl [FT] Charge trailing flag (8)
742 A1 --- Cro [FT] Crowded field flag
744 A1 --- Spk [FT] Diffraction spike flag
746 A1 --- Edg [FT] Edge of field flag (9)
748 A1 --- Hal [FT] In halo flag (10)
750 A1 --- Qlt [FT] Poor quality flag (11)
752-759 A8 --- TrigNum Swift triggering number for the burst
761-772 A12 --- ExtName FITS extension name that contains this
observation (12)
774-827 A54 --- ImName Image name
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Note (1): Best J2000 positions in decimal degrees as found in the GCN
Circulars, Goad et al. (2007A&A...476.1401G 2007A&A...476.1401G), and Butler (2007, Cat.
J/AJ/133/1027). Thirteen GRBs have improved positions that were
calculated from the centroid of the summed images in the UVOT image
database; these have been identified in Column "Edg" of the catalog.
Note (2): The time of the burst trigger as measured in Swift mission
elapsed time (MET). MET is measured in seconds and starts on 2001
January 1, 00:00:00.000 (UTC). The MET of the launch of Swift, 2004
November 20, 18:35:45.865 (UTC), is 122668545.865.
Note (3): The exposure time, in seconds, including the corrections:
detector dead time, time lost when the on-board shift-and-add
algorithm tosses event data off the image, time lost when the UVOT
Digital Processing Unit stalls because of high count rates, and time
lost due to exposures beginning with the UVOT blocked filter.
Note (4): The global background of each image is modeled as a Gaussian
distribution. An iterative "Sigma Clipping" is performed to eliminate
contributions from field stars above the 3σ level. The global
background is then reported as the arithmetic mean of the clipped
distribution along with the number of samples in the clipped
distribution. In images where the background is well sampled, the
ratio of local to global background rates is a good indicator of
sources embedded in the halo of a nearby bright star.
Note (5): This is calculated as follows. First, the CoStdRt (which is not
recorded) is calculated using the theoretical coincidence loss formula
and the polynomial correction to StdRt=StdCts/exposure (see Equations
1-3 in Poole et al. 2008MNRAS.383..627P 2008MNRAS.383..627P). The value CoStdF is then the
ratio CoStdRt/StdRt.
Note (6): Settling images sometimes have a poor aspect solution which
creates doublets out of field stars. Settling images also suffer from
detector gain issues because the High Voltages may still be ramping up
part way into the exposure. Such images have an undefined photometric
calibration and should be used cautiously. Images fitting all of the
following are flagged as settling exposures, i.e., this flag is true
(T): first exposure of Segment 0, image taken in Event mode, and
exposure <11s.
Note (7): The Swift spacecraft pointing accuracy is ∼5". The astrometric
error is improved to about 0.3" by comparing source positions to the
USNO-B catalog. For a small number of images the automated procedure
did not produce an aspect solution. Such images are flagged as true
(T).
Note (8): A number of v and white images suffer from the effects of charge
trailing. This happens when bright sources align with the source
aperture in the CCD readout direction. Visible bright streaks along
CCD columns (RAWY) sometimes complicate photometric measurements.
These images are flagged true (T).
Note (9): If the source is sufficiently close to the edge of the image such
that the exposure across the background region is variable then the
image is flagged true (T).
Note (10): A few bursts lie within the halo of bright stars, which can
produce erroneous photometric measurements. Such situations are
flagged by comparing the local background to the global background.
These images are flagged true (T).
Note (11): Cumulative quality flag. This flag is set to true when any of
the quality flags are true (Set, Asp, Trl, Spk, Edg, or Hal = T).
Note (12): The name of the extension has the following format: {filter}
{exposure ID}{I/E} where {filter}=wh, vv, bb, uu, w1, m2, or w2 for
the white, v, b, u, uvw1, uvm2, and uvw2, respectively, and {I/E}
represents image or event mode (e.g. vv133535746I) (see the
"Note (G1)" below)
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Byte-by-byte Description of file: table4.dat
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Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- --- [GRB]
4- 10 A7 --- GRB Object ID (YYMMDDA)
12- 21 F10.6 deg RAdeg Right ascension (J2000.0)
23- 32 F10.6 deg DEdeg Declination (J2000.0) in decimal degrees
34- 39 F6.2 arcsec e_pos Positional uncertainty in arcseconds
41- 53 F13.3 s TrigT Time of burst trigger in MET
55- 77 A23 --- TrigUT Time of burst trigger in Universal time
79- 91 F13.3 s Time Time of middle of exposure in MET
93-105 F13.3 s Tstart Time of start of exposure in MET
107-119 F13.3 s Tstop Time of end of exposure in MET
121-128 F8.3 s Exp Total exposure time in seconds with all
correction applied
130-137 F8.3 s Telp Total elapsed time in seconds
139-143 A5 --- Filt UVOT filter (G1)
145 I1 --- Binn Binning factor
147-150 F4.1 arcsec Ap Source aperture radius in arcseconds
152-158 F7.2 arcsec2 A(SR) Area of the SR in square arcseconds
160-169 F10.2 arcsec2 A(BR) Area of the BR in square arcseconds
171-175 F5.3 arcsec/pix PlateSc Image plate scale
177-181 F5.3 --- cf(CLR) Coincidence loss correction factor(CLCF)
183-188 F6.3 --- e_cf(CLR) Error in the CLR CLCF
190-194 F5.3 --- cf(BR) CLCF for BR
196-200 F5.3 --- e_cf(BR) Error in the BR CLCF
202-212 E11.4 ct/s CLC(SR) CLC raw count rate in SR
214-224 E11.4 ct/s e_CLC(SR) Error in the SR CLC raw count rate
226-236 E11.4 ct/s/arcsec2 CLCR(BR) CLC background surface count rate
238-248 E11.4 ct/s/arcsec2 e_CLCR(BR) Error in the CLC background surface count
rate
250-260 E11.4 ct/s ccCR(SR) Coincidence corrected net count rate
262-272 E11.4 ct/s e_ccCR(SR) Error in the coincidence corrected net
count rate
274-278 F5.3 --- ApCor Aperture correction between a 3" and 5"
aperture
280-290 E11.4 ct/s CLCR CLC count rate use to calculate flux and
magnitude
292-302 E11.4 ct/s e_CLCR Error on the CLC count rate use to
calculate flux and magnitude
304-308 F5.2 mag mag ?=99 Magnitude/upper-limit of the source
310-314 F5.2 mag e_mag ?=99 1sigma error in magnitude
316-325 E10.3 cW/m2/nm Flam Flux density in erg/s/cm2/Å
327-336 E10.3 cW/m2/nm e_Flam 1sigma error in flux density
338-347 F10.6 deg RAdegC ?=999 Centroided right ascension (J2000)
349-358 F10.6 deg DEdegC ?=999 Centroided declination (J2000)
360-364 F5.1 arcsec e_posC ?=-1 Centroided positional uncertainty
366 A1 --- Set [FT] Settling image flag (true/false)
368 A1 --- Asp [FT] Aspect error flag (true/false)
370-377 A8 --- TrigNum Swift trigger number
379-432 A54 --- EvName Event list filename
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Byte-by-byte Description of file: table5.dat
--------------------------------------------------------------------------------
Bytes Format Units Label Explanations
--------------------------------------------------------------------------------
1- 3 A3 --- --- [GRB]
4- 10 A7 --- GRB Object ID (YYMMDDA)
12- 21 F10.6 deg RAdeg Right ascension (J2000.0) in decimal degrees
23- 32 F10.6 deg DEdeg Declination (J2000.0) in decimal degrees
34- 39 F6.2 arcsec e_pos Positional uncertainty in arcseconds
41- 48 A8 --- r_pos ? Reference for the given position and error
(1)
50 I1 --- f_disc [0-3]? Discovery flag (2)
52- 56 F5.1 s T90 ?=-99 T90 in seconds (3)
58- 68 F11.1 s TrigT ? Time of burst trigger in mission elapsed time
(MET)
70- 92 A23 --- TrigUT ? Time of burst trigger in Universal time
94-106 E13.6 s Tstart ? Start time in seconds of first UVOT
observation
108 A1 --- f_w2mag [-] Not observed in the uvw2 filter
109-113 F5.2 mag w2mag ?=99 First reported magnitude (FRM) in the
UVOT/UVW2 filter (blank if not detected) (G1)
115-127 E13.6 s Tw2 ?=-1 Time since burst to the middle of the
exposure of w2mag
129 A1 --- f_m2mag [-] Not observed in the uvm2 filter
130-134 F5.2 mag m2mag ?=99 FRM in the UVOT/UVM2 filter (G1)
136-148 E13.6 s Tm2 ?=-1 Time since burst of m2mag
150 A1 --- f_w1mag [-] Not observed in the uvw1 filter
151-155 F5.2 mag w1mag ?=99 FRM in the UVOT/UVW1 filter (G1)
157-169 E13.6 s Tw1 ?=-1 Time since burst of w1mag
171 A1 --- f_umag [-] Not observed in the u filter
172-176 F5.2 mag umag ?=99 FRM in the UVOT/U filter (G1)
178-190 E13.6 s Tu ?=-1 Time since burst of umag
192 A1 --- f_bmag [-] Not observed in the b filter
193-197 F5.2 mag bmag ?=99 FRM in the UVOT/B filter (G1)
199-211 E13.6 s Tb ?=-1 Time since burst of bmag
213 A1 --- f_vmag [-] Not observed in the v filter
214-218 F5.2 mag vmag ?=99 FRM in the UVOT/V filter (G1)
220-232 E13.6 s Tv ?=-1 Time since burst of vmag
234 A1 --- f_Whmag [-] Not observed in the Wh filter
235-239 F5.2 mag Whmag ?=99 FRM in the white filter
241-253 E13.6 s TWh ?=-1 Time since burst of Whmag
255 A1 --- f_w2Pk [-] Not observed in the uvw2 filter
256-260 F5.2 mag w2Pk ?=99 Peak reported magnitude (PRM) in the
UVOT/UVW2 filter (G1)
262-274 E13.6 s Tw2Pk ?=-1 Time since burst of w2Pk
276 A1 --- f_m2Pk [-] Not observed in the uvm2 filter
277-281 F5.2 mag m2Pk ?=99 PRM in the UVOT/UVM2 filter (G1)
283-295 E13.6 s Tm2Pk ?=-1 Time since burst of m2Pk
297 A1 --- f_w1Pk [-] Not observed in the uvw1 filter
298-302 F5.2 mag w1Pk ?=99 PRM in the UVOT/UVW1 filter (G1)
304-316 E13.6 s Tw1Pk ?=-1 Time since burst of w1Pk
318 A1 --- f_uPk [-] Not observed in the u filter
319-323 F5.2 mag uPk ?=99 PRM in the UVOT/U filter (G1)
325-337 E13.6 s TuPk ?=-1 Time since burst of uPk
339 A1 --- f_bPk [-] Not observed in the b filter
340-344 F5.2 mag bPk ?=99 PRM in the UVOT/B filter (G1)
346-358 E13.6 s TbPk ?=-1 Time since burst of bPk
360 A1 --- f_vPk [-] Not observed in the v filter
361-365 F5.2 mag vPk ?=99 PRM in the UVOT/V filter (G1)
367-379 E13.6 s TvPk ?=-1 Time since burst of vPk
381 A1 --- f_WhPk [-] Not observed in the Wh filter
382-386 F5.2 mag WhPk ?=99 PRM in the white filter
388-400 E13.6 s TWhPk ?=-1 Time since burst of WhPk
402-407 F6.2 --- aw2 ?=-99 Temporal slope in the uvw2 filter (4)
409-414 F6.2 --- e_aw2 ?=0 1σ error in aw2
416-424 E9.2 --- aw2amp ?=0 Amplitude in the temporal slope of the uvw2
filter
426-431 F6.2 mag aw2mag ?=0 Magnitude in UVOT/UVW2 filter at 2000s (G1)
433-438 F6.2 --- am2 ?=0 Temporal slope in the uvm2 filter
440-445 F6.2 --- e_am2 ?=0 am2 error
447-455 E9.2 --- am2amp ?=0 Amplitude in the temporal slope of the uvm2
filter
457-462 F6.2 mag am2mag ?=0 Magnitude in UVOT/UVM2 filter at 2000s (G1)
464-469 F6.2 --- aw1 ?=0 Temporal slope in the uvw1 filter
471-476 F6.2 --- e_aw1 ?=0 aw1 error
478-486 E9.2 --- aw1amp ?=0 Amplitude in the temporal slope of the uvw1
filter
488-493 F6.2 mag aw1mag ?=0 Magnitude in UVOT/UVW1 filter at 2000s (G1)
495-500 F6.2 --- au ?=0 Temporal slope in the u filter
502-507 F6.2 --- e_au ?=0 Error in the temporal slope of the u filter
509-517 E9.2 --- auamp ?=0 Amplitude in the temporal slope of the u
filter
519-524 F6.2 mag aumag ?=0 Magnitude in UVOT/U filter at 2000s (G1)
526-531 F6.2 --- ab ?=0 Temporal slope in the b filter
533-538 F6.2 --- e_ab ?=0 Error in the temporal slope of the b filter
540-548 E9.2 --- abamp ?=0 Amplitude in the temporal slope of the b
filter
550-555 F6.2 mag abmag ?=0 Magnitude in UVOT/B filter at 2000s (G1)
557-562 F6.2 --- av ?=0 Temporal slope in the v filter
564-569 F6.2 --- e_av ?=0 Error in the temporal slope of the v filter
571-579 E9.2 --- avamp ?=0 Amplitude in the temporal slope of the v
filter
581-586 F6.2 mag avmag ?=0 Magnitude in UVOT/V filter at 2000s (G1)
588-593 F6.2 --- aWh ?=0 Temporal slope in the white filter
595-600 F6.2 --- e_aWh ?=0 aWh error
602-610 E9.2 --- aWhamp ?=0 Amplitude in the temporal slope of the
white filter
612-617 F6.2 mag aWhmag ?=0 Magnitude in the white filter at 2000s
619-624 F6.2 mag b-v ?=0 abmag-avmag at 2000s
626-631 F6.2 mag w1-v ?=0 aw1mag-avmag at 2000s
633-637 F5.3 --- E(B-V) ? Galactic reddening (5)
639-646 E8.2 cm-2 NH ? Log of Galactic HI column density (NH)
along the line of sight as defined in Kalberla
et al. 2005, Cat. VIII/76
648-654 F7.4 --- z ?=99 Redshift of the burst
656 I1 --- f_z [0-3] Redshift method flag (6)
658-661 I4 --- r_z ?=0 GCN Circular number where redshift was
reported
663-671 E9.2 10-11J/m2 FluBAT ?=-99 Prompt BAT fluence in 10-8erg/cm2 as
reported by Sakamoto et al. (2007,
Cat. J/ApJS/175/179)
673-679 F7.3 mJy FRad ?=99 Radio flux of the burst as reported in GCN
681-684 I4 --- r_FRad ?=0 GCN Circular number where the radio flux
was reported
686-691 F6.2 GHz FrRad ?=0 Observed frequency of the radio detection
as reported in GCN
693 A1 --- IR [YN]? Flag indicating a detection in the R-K
band was reported in GCN Circulars
695 A1 --- UVOT [YN]? Flag indicating a detection in a UVOT
band
697 A1 --- Rad [YN]? Flag indicating a detection in the radio
was reported in GCN Circulars
--------------------------------------------------------------------------------
Note (1): References as follows:
GCN = GCN Circulars (with NNNN the number of the circular),
Goad = Goad et al. (2007A&A...476.1401G 2007A&A...476.1401G).
Butler = Butler (2007, Cat. J/AJ/133/1027).
Note (2): GRB discovered by the following spacecraft:
0 = Swift
1 = HETE2
2 = INTEGRAL
3 = IPN
Note (3): T90 as defined by Sakamoto et al. (2007, Cat. J/ApJS/175/179)
for the Swift discovered bursts in the 15-350keV band. For GRBs 050408
(Sakamoto et al. 2005GCN..3189....1S 2005GCN..3189....1S), 051021 (Olive et al.
2005GCN..4124....1O 2005GCN..4124....1O), 051028 (Hurley et al. 2005GCN..4172....1H 2005GCN..4172....1H),
051211A (Kawai et al. 2005GCN..4359....1K 2005GCN..4359....1K), and 060121 (Arimoto et al.
2005GCN..3548....1A 2005GCN..3548....1A) discovered by HETE2, T90 in the 30-400keV band
is provided as in the GCN Circulars (T90 for GRB 060121 is provided
in the 80-400keV band). T90 for the INTEGRAL and IPN discovered
bursts, as well as the remaining HETE2 bursts, were not available in
the GCN Circulars.
Note (4): In the case of two or more afterglow detections in the uvw2
filter for a given burst, all occurring between ∼300-100000s, the
temporal slope (αuvw2) for that filter is provided. If two or
more detections are not found for any given segment, the value is set
to -99.00. The value is calculated using,
fλ(uvw2)=At-αuvw2_^ where fλ(uvw2) is the
flux density, A is the amplitude, and t is the time since burst.
Note (5): E(B-V) as found in Schlegel et al. (1998ApJ...500..525S 1998ApJ...500..525S).
Galactic extinction can be corrected using the procedure described in
Cardelli et al. (1989ApJ...345..245C 1989ApJ...345..245C). The extinction in the UVOT
bands can be expressed as Aλ=E(B-V)[aRv+b] where Rv=3.1
and λ is the UVOT filter (uvw2, uvm2, uvw1, u, b, and v). The
values for a in each filter are -0.0581, 0.0773, 0.4346, 0.9226,
0.9994, and 1.0015, respectively. The values for b are 8.4402, 9.1784,
5.3286, 2.1019, 1.0171, and 0.0126, respectively. All values for a and
b were determined as described in Cardelli et al.
(1989ApJ...345..245C 1989ApJ...345..245C). No correction factor is provided for the white
filter as the large width of the FWHM makes any extinction correction
highly dependent on the spectral energy distribution of the source.
Note (6): Flag indicating how the redshift was determined as follows:
0 = no redshift determined,
1 = absorption,
2 = emission,
3 = Lyman break.
--------------------------------------------------------------------------------
Global Notes:
Note (G1): the UVOT filters areC, in addition to the white filter
(from Poole et al. 2008MNRAS.383..627P 2008MNRAS.383..627P):
-----------------
Fltr lam.0 FWHM
-----------------
V 546.8 76.9
B 439.2 97.5
U 346.5 78.5
UVW1 260.0 69.3
UVM2 224.6 49.8
UVW2 192.8 65.7
-----------------
--------------------------------------------------------------------------------
History:
From electronic version of the journal
(End) Emmanuelle Perret [CDS] 02-Feb-2011