J/A+A/448/L9 Position catalogue of Swift XRT afterglows (Moretti+, 2006)
A refined position catalogue of the Swift XRT afterglows.
Moretti A., Perri M., Capalbi M., Angelini L., Hill J.E., Campana S.,
Burrows D.N., Osborne J.P., Tagliaferri G., Cusumano G., Giommi P.,
Romano P., Mineo T., Kennea J., Morris D., Nousek J., Pagani C.,
Racusin J., Abbey A.F., Beardmore A.P., Godet O., Goad M.R., Page K.L.,
Wells A.A., Chincarini G.
<Astron. Astrophys. 448, L9 (2006)>
=2006A&A...448L...9M 2006A&A...448L...9M
ADC_Keywords: Gamma rays ; Positional data
Keywords: bursts: gamma rays
Abstract:
We present a catalogue of refined positions of 68 gamma ray burst
(GRB) afterglows observed by the Swift X-ray Telescope (XRT) from the
launch up to 2005 Oct. 16. This is a result of the refinement of the
XRT boresight calibration. We tested this correction by means of a
systematic study of a large sample of X-ray sources observed by XRT
with well established optical counterparts. We found that we can
reduce the systematic error radius of the measurements by a factor of
two, from 6.5 to 3.2 (90% of confidence). We corrected all the
positions of the afterglows observed by XRT in the first 11 months of
the Swift mission. This is particularly important for the 37 X-ray
afterglows without optical counterpart. Optical follow-up of dark
GRBs, in fact, will be more efficient with the use of the more
accurate XRT positions.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
table1.dat 35 68 Refined positions and 90% statistical and
systematic position error radii for the whole
sample of 68 GRB afterglows observed by the
Swift XRT.
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See also:
IX/20 : The Fourth BATSE Burst Revised Catalog (Paciesas+ 1999)
J/A+A/385/377 : 319 gamma-ray bursts BATSE triggers (Quilligan+, 2002)
J/A+A/438/1175 : First INTEGRAL SPI-ACS Gamma-Ray Burst Catalogue (Rau+, 2005)
J/ApJ/616/1072 : The GUSBAD catalog of gamma-ray bursts (Schmidt+, 2004)
Byte-by-byte Description of file: table1.dat
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Bytes Format Units Label Explanations
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1- 7 A7 --- GRB GRB designation
9- 10 I2 h RAh Rigth ascension (J2000)
12- 13 I2 min RAm Rigth ascension (J2000)
15- 19 F5.2 s RAs Rigth ascension (J2000)
21 A1 --- DE- Declination sign (J2000)
22- 23 I2 deg DEd Declination (J2000)
25- 26 I2 arcmin DEm Declination (J2000)
28- 31 F4.1 arcsec DEs Declination (J2000)
33- 35 F3.1 arcsec ePos 90% statistical and systematic position
error radius
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History:
From electronic version of the journal
(End) Patricia Vannier [CDS] 27-Feb-2006