2007A&A...476.1401G


C.D.S. - SIMBAD4 rel 1.7 - 2021.01.22CET20:24:37

2007A&A...476.1401G - Astronomy and Astrophysics, volume 476, 1401-1409 (2007/12-4)

Accurate early positions for Swift GRBs: enhancing X-ray positions with UVOT astrometry.

GOAD M.R., TYLER L.G., BEARDMORE A.P., EVANS P.A., ROSEN S.R., OSBORNE J.P., STARLING R.L.C., MARSHALL F.E., YERSHOV V., BURROWS D.N., GEHRELS N., ROMING P.W.A., MORETTI A., CAPALBI M., HILL J.E., KENNEA J., KOCH S. and VANDEN BERK D.

Abstract (from CDS):

The Swift Gamma Ray Burst satellite routinely provides prompt positions for GRBs and their afterglows on timescales of a few hundred seconds. However, with a pointing accuracy of only a few arcminutes, and a systematic uncertainty on the star-tracker solutions to the World Coordinate System of 3-4arcsec, the precision of the early XRT positions is limited to 3-4arcsec at best. This is significant because operationally, the XRT detects >95% of all GRBs, while the UVOT detects only the optically brightest bursts, ∼30% of all bursts detected by BAT; thus early and accurate XRT positions are important because for the majority of bursts they provide the best available information for the initial ground-based follow-up campaigns. Here we describe an autonomous way of producing more accurate prompt XRT positions for GRBs and their afterglows, based on UVOT astrometry and a detailed mapping between the XRT and UVOT detectors. The latter significantly reduces the dominant systematic error - the star-tracker solution to the World Coordinate System. This technique, which is limited to times when there is significant overlap between UVOT and XRT PC-mode data, provides a factor of 2 improvement in the localisation of XRT refined positions on timescales of less than a few hours. Furthermore, the accuracy achieved is superior to astrometrically corrected XRT PC mode images at early times (for up to 24h), for the majority of bursts, and is comparable to the accuracy achieved by astrometrically corrected X-ray positions based on deep XRT PC-mode imaging at later times.

Abstract Copyright:

Journal keyword(s): gamma ray: bursts - astrometry

Errata: erratum vol. 492, p. 873 (2008)

Simbad objects: 152

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Number of rows : 152

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 GRB 070110 gB 00 03 39.270 -52 58 27.00 21.8 21.9 21.2     ~ 174 0
2 GRB 070721A gB 00 12 39.20 -28 33 00.0           ~ 29 0
3 GRB 060912A gB 00 21 08.11 +20 58 18.9           ~ 90 1
4 GRB 050922B gB 00 23 13.400 -05 36 17.80           ~ 65 0
5 GRB 070531 gB 00 26 57.940 +74 18 46.62           ~ 37 0
6 GRB 060708 gB 00 31 13.850 -33 45 32.40 19.07 19.79 17.37     ~ 84 0
7 GRB 050904 gB 00 54 50.794 +14 05 09.42           ~ 433 0
8 GRB 060719 gB 01 13 43.380 -48 22 55.09           ~ 82 0
9 GRB 050908 gB 01 21 50.750 -12 57 17.20           ~ 160 0
10 GRB 051028 gB 01 48 15.010 +47 45 09.20           ~ 36 0
11 GRB 070724A gB 01 51 14.08 -18 35 38.8           ~ 150 0
12 GRB 051021A gB 01 56 36.370 +09 04 03.27           ~ 42 0
13 GRB 060908 gB 02 07 18.360 +00 20 31.20 16.99 18.34 16.85     ~ 177 0
14 GRB 070616 gB 02 08 36.430 +56 56 44.91           ~ 68 0
15 GRB 070721B gB 02 12 32.98 -02 11 39.8           ~ 100 0
16 GRB 070220 gB 02 19 06.810 +68 48 16.11           ~ 50 0
17 GRB 060202 gB 02 23 22.940 +38 23 03.70           ~ 88 0
18 GRB 070129 gB 02 28 00.940 +11 41 04.00       21.3   ~ 94 0
19 GRB 050603 gB 02 39 56.839 -25 10 54.92     18.48     ~ 150 0
20 GRB 060906 gB 02 43 00.900 +30 21 42.12     19.84     ~ 118 0
21 GRB 060306 gB 02 44 22.830 -02 08 55.00           ~ 95 0
22 GRB 070714A gB 02 51 43.36 +30 14 35.1           ~ 49 0
23 GRB 061007 gB 03 05 19.510 -50 30 02.50 14.28 14.40 12.95     ~ 272 1
24 GRB 070318 gB 03 13 56.830 -42 56 46.30 18.27 16.23 15.49     ~ 142 0
25 GRB 050318 gB 03 18 51.000 -46 23 43.61 18.10 18.68 17.58     ~ 159 0
26 SN 2006aj SN* 03 21 39.670 +16 52 02.27 17.96 19.11 17.40     SNIc-BL 841 1
27 GRB 050822 gB 03 24 27.240 -46 01 59.20     20.82     ~ 96 0
28 V* GK Per No* 03 31 12.0096626899 +43 54 15.467450081   10.2 14.0     K1IV 874 0
29 GRB 060115 gB 03 36 08.400 +17 20 43.00           ~ 148 0
30 GRB 060223A gB 03 40 49.560 -17 07 48.40     17.90     ~ 78 0
31 GRB 060210 gB 03 50 57.370 +27 01 34.40   20.27       ~ 226 0
32 GRB 070714B gB 03 51 22.30 +28 17 51.3           ~ 173 1
33 GRB 060904B gB 03 52 50.520 -00 43 30.61 18.27 19.14 18.37     ~ 166 0
34 GRB 060211A gB 03 53 32.600 +21 29 19.20           ~ 48 0
35 GRB 050827 gB 04 17 09.610 +18 12 01.21 20.79         ~ 32 0
36 GRB 070328 gB 04 20 27.680 -34 04 00.60 20.29         ~ 76 0
37 GRB 060313 gB 04 26 28.180 -10 50 37.95 20.55 21.03 19.66     ~ 131 0
38 GRB 050712 gB 05 10 48.100 +64 54 47.60 19.09   17.86     ~ 61 0
39 GRB 050219B gB 05 25 15.990 -57 45 28.70   21.38 20.40     ~ 52 0
40 GRB 050915A gB 05 26 44.804 -28 00 59.27           ~ 69 0
41 GRB 060116 gB 05 38 46.170 -05 26 15.08           ~ 70 0
42 GRB 061126 gB 05 46 24.460 +64 12 38.49 18.62 18.79 19.20     ~ 155 1
43 GRB 070311 gB 05 50 08.220 +03 22 29.40           ~ 64 0
44 GRB 050826 gB 05 51 01.590 -02 38 35.40           ~ 109 0
45 GRB 060507 gB 05 59 50.520 +75 14 55.88 20.52         ~ 36 0
46 GRB 061019 gB 06 06 30.850 +29 34 13.30           ~ 47 0
47 GRB 060729 gB 06 21 31.850 -62 22 12.69           ~ 254 0
48 GRB 061004 gB 06 31 10.710 -45 54 28.71           ~ 45 0
49 GRB 060203 gB 06 54 03.850 +71 48 38.41           ~ 41 0
50 GRB 061202 gB 07 02 06.190 -74 41 54.91           ~ 63 0
51 GRB 070411 gB 07 09 19.930 +01 03 52.60     17.94     ~ 116 0
52 GRB 061006 gB 07 24 07.660 -79 11 55.10           ~ 166 1
53 GRB 060813 gB 07 27 35.380 -29 50 49.40           ~ 56 0
54 GRB 060804 gB 07 28 49.360 -27 12 56.71 18.74 18.94 17.32     ~ 33 0
55 GRB 070628 gB 07 41 06.06 -20 16 45.3           ~ 33 0
56 GRB 070420 gB 08 04 55.170 -45 33 19.99 20.39 20.01 17.16     ~ 73 0
57 GRB 070520B gB 08 07 31.070 +57 36 30.00           ~ 35 0
58 GRB 051016A gB 08 11 16.710 -18 17 52.80 19.31   18.68     ~ 27 0
59 GRB 060428A gB 08 14 10.840 -37 10 11.70     19.97     ~ 48 0
60 GRB 060427 gB 08 17 03.910 +62 40 16.50           ~ 45 0
61 GRB 051016B gB 08 48 27.810 +13 39 20.00 20.45         ~ 123 0
62 GRB 060121 gB 09 09 51.930 +45 39 45.41           ~ 112 1
63 GRB 050505 gB 09 27 03.300 +30 16 23.70     20.74     ~ 172 0
64 GRB 050502B gB 09 30 10.024 +16 59 48.07           ~ 150 0
65 GRB 061021 gB 09 40 36.120 -21 57 05.40 18.21 19.20 16.82     ~ 126 0
66 GRB 070306 gB 09 52 23.220 +10 28 55.20           ~ 180 1
67 GRB 050319 gB 10 16 47.900 +43 32 53.80   18.02 17.01     ~ 236 0
68 GRB 070107 gB 10 37 36.350 -53 12 47.51 18.37 18.49 17.44     ~ 42 0
69 GRB 050714B gB 11 18 47.610 -15 32 48.90           ~ 66 0
70 GRB 060319 gB 11 45 33.050 +60 00 39.61 20.10         ~ 60 0
71 GRB 070224 gB 11 56 06.650 -13 19 48.80           ~ 51 0
72 GRB 060123 gB 11 58 47.83 +45 30 50.9           ~ 38 0
73 GRB 050408 gB 12 02 17.320 +10 51 10.00           ~ 143 0
74 GRB 070412 gB 12 06 10.585 +40 08 24.84           ~ 45 0
75 GRB 070419A gB 12 10 58.830 +39 55 34.06 18.52         ~ 109 0
76 3C 273 BLL 12 29 06.6996828061 +02 03 08.598846466   13.05 14.830 14.11   ~ 5389 1
77 GRB 050416 gB 12 33 54.600 +21 03 26.69     19.12     ~ 254 1
78 GRB 050124 gB 12 51 30.560 +13 02 39.50           ~ 56 0
79 GRB 050509C gB 12 52 53.940 -44 50 04.10           ~ 18 0
80 3C 279 QSO 12 56 11.1664521013 -05 47 21.531840471   18.01 17.75 15.87   ~ 2742 2
81 GRB 060512 gB 13 03 05.810 +41 11 27.21 19.12 19.63 17.20     ~ 122 0
82 GRB 070208 gB 13 11 32.607 +61 57 54.37 20.79 20.79 19.86     ~ 94 0
83 GRB 050504 gB 13 24 01.290 +40 42 15.30           ~ 26 0
84 GRB 051008 gB 13 31 28.100 +42 08 05.01 17.06   14.11     ~ 72 0
85 GRB 060206 gB 13 31 43.420 +35 03 03.60   19.99 17.09     ~ 286 0
86 GRB 060204B gB 14 07 14.900 +27 40 36.40           ~ 75 0
87 GRB 050730 gB 14 08 17.090 -03 46 18.90   20.32 17.68     ~ 285 0
88 GRB 060801 gB 14 12 01.290 +16 58 54.00           ~ 138 0
89 GRB 050717 gB 14 17 24.440 -50 32 00.10           ~ 63 0
90 GRB 050802 gB 14 37 05.820 +27 47 12.62 16.85 17.38 16.97     ~ 160 0
91 GRB 060805A gB 14 43 43.480 +12 35 11.40           ~ 52 0
92 GRB 060814 gB 14 45 21.480 +20 35 11.80           ~ 188 0
93 GRB 060714 gB 15 11 26.450 -06 33 58.30   20.21 18.54     ~ 167 0
94 GRB 051117A gB 15 13 34.020 +30 52 12.30 18.66 19.81       ~ 62 0
95 GRB 060526 gB 15 31 18.360 +00 17 04.90   18.31 17.16     ~ 237 0
96 GRB 060428B gB 15 41 25.570 +62 01 28.93 20.64 20.62 19.50     ~ 62 0
97 GRB 060418 gB 15 45 42.600 -03 38 20.00 15.73 16.19 14.98     ~ 325 0
98 GRB 070509 gB 15 51 50.400 -78 39 07.50           ~ 29 0
99 GRB 060923B gB 15 52 46.740 -30 54 11.30 19.80         ~ 33 0
100 GRB 060510B gB 15 56 29.200 +78 34 12.00           ~ 132 0
101 GRB 060502A gB 16 03 42.480 +66 36 02.49     18.65     ~ 118 0
102 GRB 070521 gB 16 10 38.600 +30 15 22.70           ~ 129 0
103 GRB 050724 gB 16 24 44.400 -27 32 27.90     19.70     ~ 389 1
104 GRB 060807 gB 16 50 02.600 +31 35 30.70           ~ 53 0
105 GRB 070518 gB 16 56 47.750 +55 17 41.40 18.68 19.22 19.01     ~ 63 0
106 GRB 060923A gB 16 58 28.150 +12 21 38.90           ~ 58 0
107 GRB 070219 gB 17 20 46.190 +69 22 12.69           ~ 36 0
108 GRB 070612B gB 17 26 54.180 -08 45 08.90           ~ 36 0
109 GRB 060929 gB 17 32 28.920 +29 50 06.20           ~ 52 0
110 GRB 060926 gB 17 35 43.660 +13 02 18.60     19.36     ~ 118 0
111 GRB 050814 gB 17 36 45.390 +46 20 21.60           ~ 136 0
112 GRB 050918 gB 17 50 28.700 -25 24 41.20     20.12     ~ 9 0
113 GRB 050922A gB 18 04 21.99 -32 10 51.1           ~ 6 0
114 GRB 060111A gB 18 24 49.132 +37 36 14.47     18.86     ~ 58 0
115 GRB 060919 gB 18 27 41.740 -51 00 52.41           ~ 36 0
116 GRB 060502B gB 18 35 46.060 +52 37 51.45           ~ 123 1
117 GRB 050306 gB 18 49 13.950 -09 09 08.60     19.16     ~ 49 0
118 GRB 060109 gB 18 50 43.650 +31 59 26.40           ~ 45 0
119 GRB 060111B gB 19 05 42.480 +70 22 33.60     17.55     ~ 80 1
120 GRB 060413 gB 19 25 07.850 +13 45 29.90           ~ 56 0
121 GRB 050815 gB 19 34 23.147 +09 08 47.47 20.96 20.45 18.10     ~ 34 0
122 GRB 060105 gB 19 50 00.680 +46 20 55.40           ~ 77 0
123 GRB 070429A gB 19 50 48.900 -32 24 17.01           ~ 35 0
124 GRB 070610 X 19 55 09.60 +26 14 06.7           ~ 51 0
125 GRB 061122A gB 20 15 19.840 +15 31 02.50           ~ 45 0
126 GRB 050315 gB 20 25 54.100 -42 36 02.19           ~ 194 0
127 GRB 070508 gB 20 51 11.810 -78 23 04.88     19.62     ~ 114 0
128 GRB 070419B gB 21 02 49.820 -31 15 49.30   20.35       ~ 66 0
129 GRB 050922C gB 21 09 33.000 -08 45 30.10 15.15 15.86 14.69     ~ 254 0
130 GRB 050713A gB 21 22 09.530 +77 04 29.50           ~ 111 0
131 GRB 060614 gB 21 23 32.140 -53 01 36.10 18.89 20.12 19.54     ~ 515 1
132 GRB 060605 gB 21 28 37.320 -06 03 31.30   20.12 16.53     ~ 170 0
133 GRB 060522 gB 21 31 44.850 +02 53 10.80           ~ 116 0
134 GRB 070621 gB 21 35 10.17 -24 49 02.6           ~ 60 0
135 GRB 051221 gB 21 54 48.626 +16 53 27.16 19.49         ~ 311 1
136 GRB 060927A gB 21 58 11.930 +05 21 50.32           ~ 176 0
137 GRB 060607 gB 21 58 50.400 -22 29 46.70 18.49 16.67 15.09     ~ 262 0
138 GRB 051109A gB 22 01 15.320 +40 49 23.70   20.09 20.14     ~ 151 0
139 GRB 061201 gB 22 08 32.060 -74 34 47.90           ~ 158 0
140 GRB 061110A gB 22 25 09.800 -02 15 30.70 21.43         ~ 118 0
141 GRB 060604 gB 22 28 55.010 -10 54 55.80 20.34 20.31       ~ 107 0
142 GRB 050820A gB 22 29 38.110 +19 33 37.10 18.33 19.00 18.47     ~ 341 0
143 GRB 050716 gB 22 34 20.730 +38 41 03.60   21.52 20.32     ~ 68 0
144 GRB 051109B gB 23 01 50.330 +38 40 46.51           ~ 75 0
145 GRB 051211B gB 23 02 41.570 +55 04 51.50     20.42     ~ 34 0
146 GRB 070506 gB 23 08 52.390 +10 43 20.30     19.04     ~ 71 0
147 GRB 050803 gB 23 22 37.910 +05 47 09.00           ~ 105 0
148 GRB 070103 gB 23 30 13.750 +26 52 33.70           ~ 58 0
149 GRB 070704 gB 23 38 47.31 +66 15 12.7           ~ 51 0
150 GRB 060707 gB 23 48 19.000 -17 54 17.00     19.79     ~ 138 0
151 GRB 061222A gB 23 53 03.419 +46 31 58.60           ~ 137 0
152 GRB 050819 gB 23 55 01.650 +24 51 38.80           ~ 64 0

    Equat.    Gal    SGal    Ecl

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2021.01.22-20:24:37

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