2013A&A...557A.100H

Query : 2013A&A...557A.100H

2013A&A...557A.100H - Astronomy and Astrophysics, volume 557A100-100 (2013/9-1)

The Epeak - Eiso relation revisited with Fermi GRBs. Resolving a long-standing debate ?

HEUSSAFF V., ATTEIA J.-L. and ZOLNIEROWSKI Y.

Abstract (from CDS):

We used a sample of gamma-ray bursts (GRBs) detected by Fermi and Swift to reanalyze the correlation discovered by Amati et al. (2002A&A...390...81A) between Epi, the peak energy of the prompt GRB emission, and Eiso, the energy released by the GRB assuming isotropic emission. This correlation has been disputed by various authors, and our aim is to assess whether it is an intrinsic GRB property or the consequence of selection effects. We constructed a sample of Fermi GRBs with homogeneous selection criteria, and we studied their distribution in the Epi-Eiso plane. Our sample is made of 43 GRBs with a redshift and 243 GRBs without a redshift. We show that GRBs with a redshift follow a broad Epi-Eiso relation, while GRBs without a redshift show several outliers. We use these samples to discuss the impact of selection effects associated with GRB detection and with redshift measurement. We find that the Epi-Eiso relation is partly due to intrinsic GRB properties and partly due to selection effects. The lower right boundary of the Epi-Eiso relation stems from a true lack of luminous GRBs with low Epi. In contrast, the upper left boundary is attributed to selection effects acting against the detection GRBs with low Eiso and large Epi that appear to have a lower signal-to-noise ratio. In addition, we demonstrate that GRBs with and without a redshift follow different distributions in the Epi-Eiso plane. GRBs with a redshift are concentrated near the lower right boundary of the Epi-Eiso relation. This suggests that it is easier to measure the redshift of GRBs close to the lower Epi-Eiso boundary and that GRBs with a redshift follow the Amati relation better than the general population. In this context, we attribute the controversy about the reality of the Amati relation to the complex nature of this relation resulting from the combination of a true physical boundary and biases favoring the detection and the measurement of the redshift of GRBs located close to this boundary.

Abstract Copyright: ∼

Journal keyword(s): gamma-ray burst: general - cosmology: miscellaneous

VizieR on-line data: <Available at CDS (J/A+A/557/A100): tablea1.dat tablea2.dat refs.dat>

Simbad objects: 287

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Number of rows : 287
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 Fermi bn090703329 gB 00 03 +09.7           ~ 14 0
2 Fermi bn090625560 gB 00 09 03.42 -65 46 49.3           ~ 26 0
3 Fermi bn100507577 gB 00 11.6 -79 01           ~ 31 0
4 Fermi bn090227310 gB 00 13.2 -43 00           ~ 26 0
5 Fermi bn100522157 gB 00 27 56.79 +09 24 06.6           ~ 57 0
6 Fermi bn100424876 gB 00 31.2 +43 21           ~ 12 0
7 Fermi bn100118100 gB 00 37 -37.4           ~ 11 0
8 Fermi bn100517243 gB 00 42 +04.4           ~ 10 0
9 Fermi bn090621185 gB 00 43 56.80 +61 56 17.6           ~ 59 0
10 SN 2010ma SN* 00 48 55.35 -34 33 59.5           SNIc 190 1
11 Fermi bn091207333 gB 00 51 -50.2           ~ 12 0
12 GRB 090922A gB 00 52.4 +74 00           ~ 26 0
13 Fermi bn081130629 gB 00 53 -05.5           ~ 19 0
14 Fermi bn091202219 gB 00 56 +09.1           ~ 11 0
15 Fermi bn081221681 gB 01 03 10.2 -24 32 53           ~ 186 0
16 Fermi bn081028538 gB 01 04 -27.2           ~ 13 0
17 Fermi bn100130729 gB 01 24.8 -24 45           ~ 16 0
18 Fermi bn100322045 gB 01 25 -12.4           ~ 21 0
19 Fermi bn090815438 gB 01 26 +53.4           ~ 15 0
20 Fermi bn100814160 gB 01 29 53.61 -17 59 43.6           ~ 219 0
21 GRB 081222 gB 01 30 57.76 -34 05 44.0           ~ 199 0
22 GRB 100906A gB 01 54 44.19 +55 37 49.8           ~ 233 0
23 Fermi bn091208410 gB 01 57 38.50 +16 52 50.7           ~ 220 0
24 Fermi bn091101143 gB 01 59 -33.7           ~ 12 0
25 Fermi bn081012549 gB 02 00 44 -17 37.6           ~ 43 0
26 Fermi bn090113778 gB 02 08 16.00 +33 26 08.4           ~ 92 0
27 Fermi bn090909487 gB 02 09 +53.9           ~ 10 0
28 Fermi bn080727964 gB 02 10 31.96 +64 08 14.3           ~ 47 0
29 Fermi bn090327404 gB 02 12 -41.5           ~ 13 0
30 Fermi bn080808565 gB 02 14.4 +05 24           ~ 11 0
31 SN 2009nz SN* 02 26 19.87 -18 57 08.6           ~ 307 1
32 Fermi bn090922605 gB 02 34 -73.1           ~ 12 0
33 Fermi bn090411991 gB 02 34 +05.1           ~ 17 0
34 Fermi bn100324172 gB 02 39 -19.3           ~ 21 0
35 Fermi bn090815300 gB 02 44 -02.7           ~ 14 0
36 Fermi bn090623913 gB 02 46.8 +01 48           ~ 12 0
37 Fermi bn091030828 gB 02 47 +21.5           ~ 17 0
38 GRB 081125 gB 02 51 -18.9           ~ 30 0
39 Fermi bn100701490 gB 02 52 -02.2           ~ 20 0
40 Fermi bn091005679 gB 02 52 +12.1           ~ 12 0
41 Fermi bn120811014 gB 02 55 -31.7           ~ 15 0
42 Fermi bn100728439 gB 02 56 13.44 +00 16 51.6           ~ 142 0
43 Fermi bn080913735 gB 03 00 -03.0           ~ 18 0
44 Fermi bn090926914 gB 03 05 14.30 -38 59 50.9           ~ 149 1
45 Fermi bn100204024 gB 03 23.1 -47 53           ~ 11 0
46 Fermi bn091230712 gB 03 27 +77.2           ~ 10 0
47 Fermi bn100517639 gB 03 31 -71.9           ~ 10 0
48 Fermi bn081206987 gB 03 37 -08.6           ~ 12 0
49 Fermi bn081118876 gB 03 38.4 -43 18           ~ 15 0
50 Fermi bn091221870 gB 03 43 11.40 +23 14 28.0           ~ 66 0
51 Fermi bn090929190 gB 03 45 57.9 -05 57 50           ~ 31 0
52 Fermi bn080818579 gB 04 02 -06.9           ~ 14 0
53 Fermi bn081129161 gB 04 13 -54.9           ~ 21 0
54 Fermi bn090403314 gB 04 28.4 +47 12           ~ 17 0
55 Fermi bn091031500 gB 04 47 -57.5           ~ 33 0
56 Fermi bn080924766 gB 04 51.2 +32 30           ~ 11 0
57 Fermi bn090530760 gB 04 53 +13.8           ~ 22 0
58 Fermi bn120907017 gB 04 58 59.99 -09 18 53.7           ~ 89 0
59 Fermi bn100304004 gB 05 05 +60.5           ~ 11 0
60 Fermi bn090101758 gB 05 11 -31.6           ~ 12 0
61 Fermi bn100410740 gB 05 12 +61.3           ~ 11 0
62 Fermi bn100130777 gB 05 14 +20.8           ~ 13 0
63 Fermi bn100122616 gB 05 16.8 -02 43           ~ 26 0
64 GRB 090612 gB 05 24.1 +17 43           ~ 17 0
65 GRB 090426C gB 05 31 -09.7           ~ 17 0
66 GRB 090610 gB 05 37 +35.4           ~ 17 0
67 Fermi bn100619015 gB 05 38 28.0 -27 00 02           ~ 57 0
68 GRB 090820 gB 05 51 +27.1           ~ 44 0
69 Fermi bn090419997 gB 05 54.4 +31 18           ~ 13 0
70 Fermi bn100728095 gB 05 55 02.00 -15 15 20.2           ~ 157 0
71 Fermi bn100429999 gB 05 56.4 -69 58           ~ 11 0
72 Fermi bn100427356 gB 05 56 41 -03 27.7           ~ 25 0
73 GRB 081121 gB 05 57 07.70 -60 36 42.1           ~ 152 0
74 Fermi bn100609783 gB 06 02 +42.8           ~ 10 0
75 GRB 090328 gB 06 02 39.69 -41 52 55.1           ~ 194 1
76 Fermi bn080809808 gB 06 07 +61.4           ~ 10 0
77 GRB 090717A gB 06 10 -62.5           ~ 33 0
78 Fermi bn090709630 gB 06 14 05 +64 04.9           ~ 33 0
79 Fermi bn120711115 gB 06 18 42.839 -70 59 56.78           ~ 125 0
80 GRB 090809B gB 06 21 +00.2           ~ 30 0
81 Fermi bn080925775 gB 06 24.4 +18 12           ~ 28 0
82 Fermi bn080905570 gB 06 28 -69.8           ~ 13 0
83 Fermi bn080818945 gB 06 32 +07.4           ~ 13 0
84 Fermi bn100517072 gB 06 44 -29.0           ~ 14 0
85 Fermi bn080807993 gB 06 47 -16.0           ~ 25 0
86 Fermi bn100506653 gB 06 48 +58.6           ~ 9 0
87 Fermi bn090928646 gB 06 56 -43.5           ~ 12 0
88 GRB 080723D gB 07 01 +71.1           ~ 18 0
89 Fermi bn090519462 gB 07 04 -56.7           ~ 16 0
90 Fermi bn080804456 gB 07 10 +20.3           ~ 10 0
91 Fermi bn081017474 gB 07 16 -15.2           ~ 9 0
92 GRB 100511A gB 07 17.2 -04 39           ~ 28 0
93 Fermi bn090112332 gB 07 23.6 -30 24           ~ 12 0
94 Fermi bn090520850 gB 07 25 -19.7           ~ 14 0
95 GRB 081207 gB 07 29.6 +70 30           ~ 26 0
96 Fermi bn100201588 gB 07 43 -54.4           ~ 14 0
97 Fermi bn090810781 gB 07 46 -17.5           ~ 10 0
98 Fermi bn081217983 gB 07 47.2 +26 48           ~ 15 0
99 Fermi bn090222179 gB 07 54 +45.0           ~ 13 0
100 Fermi bn090425377 gB 07 54 +68.1           ~ 23 0
101 GRB 100423B gB 07 58.7 +05 47           ~ 18 0
102 GRB 080916C gB 07 59 23.24 -56 38 16.8           ~ 386 0
103 Fermi bn120119170 gB 08 00 06.940 -09 04 53.83           ~ 193 0
104 Fermi bn081206275 gB 08 00 +32.8           ~ 15 0
105 Fermi bn100131730 gB 08 01.6 +16 29           ~ 22 0
106 Fermi bn090117632 gB 08 06.4 -38 48           ~ 15 0
107 Fermi bn090516137 gB 08 08.8 -71 37           ~ 23 0
108 Fermi bn080824909 gB 08 09.6 -02 48           ~ 16 0
109 Fermi bn100420008 gB 08 14 -04.4           ~ 11 0
110 GRB 081215A gB 08 22 +54.0           ~ 57 0
111 Fermi bn091128285 gB 08 31 +01.7           ~ 18 0
112 GRB 090102 gB 08 32 59.50 +33 06 25.7           ~ 253 0
113 Fermi bn090804940 gB 08 42 -11.3           ~ 21 0
114 Fermi bn100502356 gB 08 44 +18.4           ~ 13 0
115 Fermi bn090520876 gB 08 45 -18.0           ~ 13 0
116 Fermi bn100211440 gB 08 49 +29.5           ~ 11 0
117 Fermi bn100704149 gB 08 54 33.92 -24 12 09.7           ~ 103 0
118 Fermi bn100205490 gB 08 56 -23.0           ~ 14 0
119 GRB 100212B gB 08 57.1 +32 13           ~ 15 0
120 Fermi bn090528173 gB 09 00 -35.8           ~ 14 0
121 Fermi bn090306245 gB 09 08.0 +57 00           ~ 14 0
122 Fermi bn090516353 gB 09 12 59 -11 50.9           ~ 173 0
123 Fermi bn090826068 gB 09 22.5 -00 07           ~ 16 0
124 Fermi bn081006604 gB 09 28.0 -67 24           ~ 25 0
125 Fermi bn100709602 gB 09 30 +17.4           ~ 14 0
126 GRB 090831A gB 09 40 23 +50 58.0           ~ 36 0
127 Fermi bn081024851 gB 09 43 -10.8           ~ 11 0
128 Fermi bn090630311 gB 09 46 -46.6           ~ 13 0
129 Fermi bn100503554 gB 09 49.9 +03 58           ~ 17 0
130 Fermi bn100225703 gB 09 51.6 +34 01           ~ 13 0
131 Fermi bn111228657 gB 10 00 16.04 +18 17 52.2           ~ 201 0
132 GRB 080817 gB 10 05 09.600 -19 15 36.00           ~ 27 0
133 Fermi bn080816503 gB 10 24.8 +42 36           ~ 19 0
134 Fermi bn080830368 gB 10 40.4 +30 48           ~ 18 0
135 Fermi bn090330279 gB 10 40.8 -08 12           ~ 19 0
136 SN 2003dh SN* 10 44 50.030 +21 31 18.15     16.2     SNIcpec 1261 1
137 Fermi bn090511684 gB 10 48 +51.3           ~ 14 0
138 Fermi bn091220442 gB 11 11.0 +03 55           ~ 12 0
139 Fermi bn090810659 gB 11 16 -76.4           ~ 14 0
140 Fermi bn090626189 gB 11 20 -33.5           ~ 54 0
141 Fermi bn091103912 gB 11 22.8 +11 20           ~ 14 0
142 Fermi bn090307167 gB 11 31 -23.9           ~ 12 0
143 Fermi bn100313288 gB 11 30.8 -52 35           ~ 12 0
144 SN 2013cq SN* 11 32 32.84 +27 41 56.2           SNIc 613 1
145 Fermi bn090908341 gB 11 36 -25.1           ~ 13 0
146 Fermi bn091020900 gB 11 42 55.20 +50 58 42.0           ~ 188 0
147 Fermi bn080812889 gB 11 47 -33.2           ~ 13 0
148 GRB 080723B gB 11 47 19.77 -60 14 27.9           ~ 53 0
149 Fermi bn100615083 gB 11 48 49.25 -19 28 52.2           ~ 133 0
150 Fermi bn091107635 gB 12 10 +38.9           ~ 12 0
151 GRB 080906B gB 12 11.2 -06 24           ~ 25 0
152 Fermi bn090310189 gB 12 20 -34.2           ~ 14 0
153 Fermi bn091020977 gB 12 31.2 -13 24           ~ 13 0
154 Fermi bn090912660 gB 12 32 10.31 +61 29 04.4           ~ 36 0
155 Fermi bn100323542 gB 12 36 -18.7           ~ 11 0
156 Fermi bn090126227 gB 12 36.8 +34 06           ~ 15 0
157 GRB 090424 gB 12 38 07.40 +16 49 45.9           ~ 269 0
158 Fermi bn081021398 gB 12 41 -25.6           ~ 14 0
159 Fermi bn090323002 gB 12 42 50.28 +17 03 11.9           ~ 244 1
160 GRB 100519A gB 12 46.0 +57 25           ~ 13 0
161 Fermi bn100414097 gB 12 48 30.0 +08 41 35           ~ 136 0
162 GRB 090112B gB 12 49 +25.4           ~ 18 0
163 Fermi bn081226156 gB 12 52.0 +26 48           ~ 15 0
164 Fermi bn121211574 gB 13 02 07.99 +30 08 54.6           ~ 99 0
165 Fermi bn130420313 gB 13 04 25.49 +59 25 26.8           ~ 112 0
166 Fermi bn091231206 gB 13 08.4 -55 57           ~ 14 0
167 GRB 081224A gB 13 26.8 +75 06           ~ 32 0
168 Fermi bn100301223 gB 13 27.4 +19 50           ~ 12 0
169 Fermi bn100330309 gB 13 28 -00.9           ~ 11 0
170 GRB 090720B gB 13 31 59 -54 48.0           ~ 28 0
171 Fermi bn090720276 gB 13 34 46.6 -10 20 06           ~ 24 0
172 Fermi bn090217206 gB 13 40 -08.4           ~ 56 0
173 Fermi bn100218194 gB 13 46.6 -11 56           ~ 15 0
174 Fermi bn081101532 gB 13 50 -28.0           ~ 19 0
175 Fermi bn090704242 gB 13 53 +22.8           ~ 17 0
176 Fermi bn081231140 gB 13 54.4 -35 48           ~ 15 0
177 Fermi bn090428441 gB 14 00 +39.5           ~ 12 0
178 Fermi bn090518244 gB 14 05 -16.7           ~ 15 0
179 GRB 090529 gB 14 09 52.49 +24 27 33.5           ~ 89 0
180 Fermi bn080904886 gB 14 16.8 -30 18           ~ 18 0
181 GRB 080715A gB 14 19 +09.9           ~ 14 0
182 Fermi bn080829790 gB 14 48 +03.2           ~ 10 0
183 Fermi bn100614498 gB 14 59.0 +40 52           ~ 11 0
184 Fermi bn090813174 gB 15 00 15.60 +88 34 15.8           ~ 62 0
185 GRB 091120 gB 15 07.2 -21 47           ~ 34 0
186 Fermi bn081215880 gB 15 14 -50.7           ~ 14 0
187 Fermi bn090917661 gB 15 21 -11.7           ~ 12 0
188 Fermi bn091223511 gB 15 25 +54.7           ~ 11 0
189 GRB 080825C gB 15 28.8 -04 54           ~ 71 0
190 GRB 090620 gB 15 49.4 +61 09           ~ 29 0
191 Fermi bn090915650 gB 15 51 58 +15 28.8           ~ 23 0
192 Fermi bn080821332 gB 15 54 +32.6           ~ 11 0
193 Fermi bn101213451 gB 16 05 15.27 +21 53 50.5           ~ 68 0
194 Fermi bn090509215 gB 16 05 41.30 -28 23 04.4           ~ 38 0
195 Fermi bn080806896 gB 16 07.2 +46 42           ~ 15 0
196 Fermi bn100517154 gB 16 14 21 -10 22.0           ~ 15 0
197 Fermi bn081025349 gB 16 21 27.90 +60 28 27.4           ~ 37 0
198 Fermi bn091117080 gB 16 26 -73.9           ~ 11 0
199 Fermi bn080730786 gB 16 26 +28.7           ~ 13 0
200 Fermi bn100424729 gB 16 27 -48.9           ~ 9 0
201 Fermi bn100111176 gB 16 28 11.60 +15 33 02.3           ~ 47 0
202 Fermi bn091109895 gB 16 30.9 +42 19           ~ 14 0
203 Fermi bn100604287 gB 16 33.2 -73 11           ~ 13 0
204 Fermi bn090602564 gB 16 36 -65.0           ~ 14 0
205 Fermi bn091030613 gB 16 36.0 +23 32           ~ 11 0
206 Fermi bn081009140 gB 16 42 +18.4           ~ 40 0
207 Fermi bn090815946 gB 16 45 +52.9           ~ 12 0
208 GRB 091003A gB 16 46 04.680 +36 37 31.08           ~ 135 0
209 Fermi bn090730608 gB 16 50 +30.5           ~ 12 0
210 GRB 090207 gB 16 50.8 +34 54           ~ 19 0
211 Fermi bn091202072 gB 17 01.3 +01 26           ~ 12 0
212 Fermi bn100504806 gB 17 02 17.13 -35 35 14.7           ~ 40 0
213 Fermi bn090316311 gB 17 04 -38.9           ~ 9 0
214 Fermi bn091112737 gB 17 13 -38.9           ~ 26 0
215 Fermi bn091209001 gB 17 24 +38.3           ~ 11 0
216 Fermi bn090904581 gB 17 26 +04.6           ~ 11 0
217 Fermi bn090904058 gB 17 36 44.52 -25 12 45.9           ~ 56 0
218 Fermi bn090902462 gB 17 39 45.26 +27 19 28.1           ~ 440 0
219 Fermi bn100413732 gB 17 44 53.22 +15 50 02.4           ~ 62 0
220 Fermi bn090413122 gB 17 46.0 -09 12           ~ 13 0
221 Fermi bn090502777 gB 17 51 -20.3           ~ 15 0
222 Fermi bn090129880 gB 17 56 25.10 -32 47 34.8           ~ 36 0
223 Fermi bn100224112 gB 17 58 -17.1           ~ 15 0
224 Fermi bn090513916 gB 17 59 -31.6           ~ 13 0
225 Fermi bn100204566 gB 18 12 -52.8           ~ 11 0
226 Fermi bn120326056 gB 18 15 37.06 +69 15 35.4           ~ 188 0
227 Fermi bn090718762 gB 18 16 -36.4           ~ 21 0
228 Fermi bn090202347 gB 18 17.2 -02 00           ~ 19 0
229 Fermi bn100515467 gB 18 21 52 +27 01.0           ~ 14 0
230 GRB 120909A gB 18 22 56.81 -59 26 54.9           ~ 103 0
231 Fermi bn090610723 gB 18 24 -42.1           ~ 14 0
232 Fermi bn090811696 gB 18 28.2 +22 13           ~ 14 0
233 Fermi bn091115177 gB 18 37.5 +68 02           ~ 13 0
234 Fermi bn081008832 gB 18 39 52.40 -57 25 58.8           ~ 224 0
235 Fermi bn110731465 gB 18 42 00.99 -28 32 13.8           ~ 193 0
236 Fermi bn090319622 gB 18 53.2 -08 54           ~ 16 0
237 Fermi bn090713020 gB 18 59.2 -03 20           ~ 15 0
238 Fermi bn080816989 gB 19 18 -06.8           ~ 19 0
239 Fermi bn100530737 gB 19 19 +31.0           ~ 10 0
240 Fermi bn090902401 gB 19 24 +53.1           ~ 22 0
241 GRB 090618 gB 19 36 01.80 +78 21 07.1           ~ 358 0
242 Fermi bn090910812 gB 19 45 +72.3           ~ 18 0
243 Fermi bn091227294 gB 19 48 +02.6           ~ 14 0
244 Fermi bn091123298 gB 19 48 -29.2           ~ 16 0
245 GRB 091010 gB 19 54 40.510 -22 32 17.36           ~ 46 0
246 Fermi bn090805622 gB 20 00 -50.8           ~ 10 0
247 Fermi bn080803772 gB 20 00 +82.8           ~ 11 0
248 Fermi bn121128212 gB 20 02 23.88 +54 17 59.1           ~ 128 0
249 Fermi bn080905705 gB 20 06 57.93 -62 33 46.8           ~ 119 0
250 Fermi bn100311518 gB 20 14 -27.8           ~ 10 0
251 Fermi bn090514726 gB 20 17 -24.4           ~ 12 0
252 Fermi bn100116897 gB 20 20 +14.4           ~ 42 0
253 Fermi bn090814950 gB 20 30 +45.7           ~ 15 0
254 Fermi bn100207665 gB 20 32 -27.7           ~ 11 0
255 Fermi bn090623107 gB 20 36 -43.2           ~ 20 0
256 Fermi bn100225115 gB 20 41.2 -59 24           ~ 23 0
257 GRB 090528B gB 20 49 +32.7           ~ 30 0
258 Fermi bn120716712 gB 20 52 12.17 +09 35 53.9           ~ 72 0
259 Fermi bn100225580 gB 20 57.1 +00 13           ~ 14 0
260 Fermi bn100326402 gB 20 59 +00.5           ~ 12 0
261 Fermi bn090514734 gB 21 04 -44.0           ~ 10 0
262 Fermi bn100513879 gB 21 24 +22.2           ~ 10 0
263 Fermi bn080805496 gB 21 30.8 +47 54           ~ 11 0
264 Fermi bn081126899 gB 21 34 03.54 +48 42 35.2           ~ 76 0
265 Fermi bn080804972 gB 21 54 41.90 -53 11 20.2           ~ 158 0
266 Fermi bn090829672 gB 21 56.8 -34 12           ~ 30 0
267 Fermi bn090524346 gB 21 58 -67.4           ~ 20 0
268 Fermi bn100325275 gB 22 01.0 -26 28           ~ 24 0
269 Fermi bn100219026 gB 22 04 +37.8           ~ 10 0
270 Fermi bn081102739 gB 22 04 42.60 +52 59 27.7           ~ 60 0
271 Fermi bn090925389 gB 22 13 +14.3           ~ 13 0
272 Fermi bn080916406 gB 22 25 09.30 -57 01 33.7           ~ 177 0
273 Fermi bn091123081 gB 22 31 +13.4           ~ 11 0
274 Fermi bn081122520 gB 22 36.4 +40 00           ~ 27 0
275 Fermi bn091024380 gB 22 37 +56.9           ~ 151 0
276 GRB 090719 gB 22 45 -67.9           ~ 41 0
277 Fermi bn090301315 gB 23 21.0 +09 09           ~ 18 0
278 Fermi bn100707032 gB 23 24 -06.6           ~ 44 0
279 GRB 100612B gB 23 28 -01.8           ~ 23 0
280 GRB 090131 gB 23 29.2 +21 12           ~ 37 0
281 Fermi bn090926181 gB 23 33 36.18 -66 19 25.9           ~ 339 0
282 Fermi bn090829702 gB 23 40.0 -09 24           ~ 17 0
283 Fermi bn100510810 gB 23 43 -35.6           ~ 14 0
284 Fermi bn100212588 gB 23 45 40.39 +49 29 39.6           ~ 56 0
285 Fermi bn080810549 gB 23 47 08.00 +00 18 35.1           ~ 240 0
286 Fermi bn090228976 gB 23 50.4 +36 42           ~ 15 0
287 Fermi bn080724401 gB 23 53 +32.9           ~ 15 0

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