2013A&A...554A..75S

Query : 2013A&A...554A..75S

2013A&A...554A..75S - Astronomy and Astrophysics, volume 554A75-75 (2013/6-1)

Evidence for a cosmological effect in γ-ray spectra of BL Lacertae.

SANCHEZ D.A., FEGAN S. and GIEBELS B.

Abstract (from CDS):

We update the list of GeV-TeV extragalactic γ-ray sources using the two-year catalog from the Fermi Large-Area Telescope (LAT) and recent results from ground-based γ-ray telescopes. Breaks in the spectra between the high-energy (100MeV<E<300GeV) and the very high-energy (E>200GeV) ranges, as well as their dependence on distance, are discussed in the context of absorption on the extragalactic background light (EBL). We calculate the size of the expected break using a model for the EBL and compare it to the data, taking into account systematic uncertainties in the measurements. We develop a novel Bayesian model to describe this dataset and use it to constrain two simple models for the EBL-induced breaks.

Abstract Copyright: ∼

Journal keyword(s): BL Lacertae objects: general - cosmic background radiation - gamma rays: galaxies

Simbad objects: 36

goto Full paper

goto View the references in ADS

Number of rows : 36
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 2MASX J00135605-1854066 BLL 00 13 56.0426451480 -18 54 06.702770232   17.01   15.82   ~ 86 1
2 PMN J0152+0146 BLL 01 52 39.6109440384 +01 47 17.385104112       11.8   ~ 155 1
3 3C 66A BLL 02 22 39.6114771888 +43 02 07.799534304   15.71 15.21 14.5   ~ 942 2
4 RX J0232.8+2017 BLL 02 32 48.6148874688 +20 17 17.486717388     18.00 13.96   ~ 387 1
5 RX J0319.8+1845 BLL 03 19 51.8082475320 +18 45 34.562475432           ~ 223 1
6 QSO B0347-121 BLL 03 49 23.1862105584 -11 59 27.366035532   18.74 18.2 17.46   ~ 245 1
7 PMN J0416+0105 BLL 04 16 52.4945693352 +01 05 23.899102620   16.86 16.38 16   ~ 302 1
8 PKS J0550-3216 BLL 05 50 40.5705144672 -32 16 16.484718648   16.07 15.5     ~ 424 1
9 RX J0648.7+1516 BLL 06 48 47.6488006968 +15 16 24.797585352       16.2   ~ 99 1
10 RX J0710.5+5908 BLL 07 10 30.0683697888 +59 08 20.371772544   17.38 16.52 15.1   ~ 249 1
11 8C 0716+714 BLL 07 21 53.4482942664 +71 20 36.363846516   15.5 15.50 14.27   ~ 1388 1
12 RX J0809.8+5218 BLL 08 09 49.1868285744 +52 18 58.249938744   16.11 15.59 14.6   ~ 302 1
13 6dFGS gJ101016.0-311909 BLL 10 10 15.9790879224 -31 19 08.411407176   17.61   16.09   ~ 97 1
14 RX J1015.0+4926 BLL 10 15 04.1396533776 +49 26 00.706055496   16.56 16.15 14.58   ~ 400 3
15 PMN J1103-2329 BLL 11 03 37.6150845072 -23 29 31.203773520   17.00 16.55 16.61   ~ 405 1
16 Z 184-50 BLL 11 04 27.3140835504 +38 12 31.798495872   13.50 12.90 8.31   ~ 2841 1
17 Z 334-43 BLL 11 36 26.4090783600 +70 09 27.309071232   15.16 14.49 10.51   ~ 394 1
18 PG 1218+304 BLL 12 21 21.9426947832 +30 10 37.158534012   16.50 15.85 15.7   ~ 497 1
19 7C 1219+2830 BLL 12 21 31.6904439888 +28 13 58.500308172   16.81 16.11 14.24   ~ 924 1
20 7C 122223.5+213929 Bla 12 24 54.4583146056 +21 22 46.385507388   17.56 17.50 18.2   ~ 770 2
21 M 87 AGN 12 30 49.42338414 +12 23 28.0436859 10.16 9.59 8.63   7.49 ~ 7815 3
22 3C 279 Bla 12 56 11.16657958 -05 47 21.5251510   18.01 17.75 15.87   ~ 3205 2
23 RX J1315.0-4236 BLL 13 15 03.3912307368 -42 36 49.760844084   18.07   16.59   ~ 114 0
24 NAME Centaurus A BLL 13 25 27.61521044 -43 01 08.8050291   8.18 6.84 6.66   ~ 4774 3
25 PG 1424+240 BLL 14 27 00.3917926224 +23 48 00.037510776 14.52 14.34 14.95 14.5   ~ 420 1
26 RX J1428.5+4240 BLL 14 28 32.6090008440 +42 40 21.048123396   16.95 16.45 14.4   ~ 549 1
27 PG 1553+113 BLL 15 55 43.0440048528 +11 11 24.365649948 14.91 14.72 14.57 13.99   ~ 672 1
28 Z 225-7 BLL 16 53 52.21668403 +39 45 36.6088754 14.09 14.15 13.29 8.26   ~ 2304 2
29 1RXS J194356.1+211731 Bla 19 43 56.24400 +21 18 23.3784           ~ 99 1
30 QSO B1959+650 BLL 19 59 59.8520303688 +65 08 54.652536492     12.8 11.21   ~ 699 2
31 PKS J2009-4849 BLL 20 09 25.3903899240 -48 49 53.725051056   15.75 12.81 11.41   ~ 604 1
32 PKS J2158-3013 BLL 21 58 52.0652249880 -30 13 32.118447792   13.36 13.09 12.62   ~ 1829 1
33 NAME BL Lac BLL 22 02 43.2913536816 +42 16 39.979416792   15.66 14.72     ~ 2397 1
34 RX J2250.0+3824 BLL 22 50 05.7481607616 +38 24 37.193100984       14.8   ~ 147 2
35 QSO B2344+514 BLL 23 47 04.8372110928 +51 42 17.877513168     15.50 10.7   ~ 500 1
36 QSO B2356-309 BLL 23 59 07.9034996184 -30 37 40.671098544   18.414 16.44 16.795   ~ 318 2

To bookmark this query, right click on this link: simbad:objects in 2013A&A...554A..75S and select 'bookmark this link' or equivalent in the popup menu