2011A&A...534A.130K


C.D.S. - SIMBAD4 rel 1.7 - 2019.11.20CET17:02:15

2011A&A...534A.130K - Astronomy and Astrophysics, volume 534A, 130-130 (2011/10-1)

1ES 0229+200: an extreme blazar with a very high minimum Lorentz factor.

KAUFMANN S., WAGNER S.J., TIBOLLA O. and HAUSER M.

Abstract (from CDS):

The blazar 1ES 0229+200 is a high-frequency-peaked BL Lac object with a hard TeV spectrum extending to 10TeV. Its unusual spectral characteristics make it a frequently used probe for intergalactic radiation and magnetic fields. With new, simultaneous observations in the optical, ultraviolet (UV), and X-rays, the synchrotron emission is probed in great detail. The X-ray emission varies by a factor of ∼2 in 2009, while being rather stable in 2010. The X-ray spectrum is very hard (Γ∼1.8) and it shows an indication of excess absorption above the Galactic value. The X-ray emission is detected up to ∼100keV without any significant cut-off, thus 1ES 0229+200 belongs to the class of extreme blazars. The simultaneous measured, host galaxy- and extinction-corrected optical and UV fluxes illustrate that the cut-off of the low energy part of the synchrotron emission is located in the UV regime. The minimum energy of the electron distribution has to be rather high to account for this cut-off. This implies that there is a narrow-band energy distribution function of radiating electrons, which is responsible for the unusually hard TeV spectrum. Other extreme blazars have similar synchrotron peak frequencies but much softer TeV spectra, hence 1ES 0229+200 has one of the highest inverse Compton peak frequency and the narrowest electron distribution among the extreme blazars known to date.

Abstract Copyright:

Journal keyword(s): galaxies: active - BL Lacertae objects: individual: 1ES 0229+200

Simbad objects: 47

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Number of rows : 47

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 XMMU J023147.2+201348 X 02 31 47.287 +20 13 48.93           ~ 1 1
2 GSC2.3 NC6R014254 * 02 31 47.425 +20 13 50.65   20.51       ~ 1 1
3 GSC2 N3312301924 * 02 32 11.593 +20 17 20.59   18.79   16.23   ~ 1 1
4 XMMU J023211.7+201721 X 02 32 11.773 +20 17 21.75           ~ 1 1
5 XMMU J023212.7+200318 X 02 32 12.738 +20 03 18.55           ~ 1 0
6 NVSS J023219+201204 Rad 02 32 19.58 +20 12 04.0           ~ 1 1
7 XMMU J023219.6+201201 X 02 32 19.684 +20 12 01.90           ~ 1 1
8 NVSS J023227+200711 Rad 02 32 27.3529762420 +20 07 12.525067721           ~ 2 2
9 GSC2 N331230310473 * 02 32 27.370 +20 07 12.58       18.43   ~ 1 1
10 XMMU J023227.3+200711 X 02 32 27.371 +20 07 11.61           ~ 1 1
11 LEDA 1626085 AGN 02 32 28.8 +20 23 50           ~ 4 1
12 GSC2 N33123012274 * 02 32 28.818 +20 23 49.86   15.58   13.75   ~ 1 1
13 XMMU J023229.9+200639 X 02 32 29.933 +20 06 39.66           ~ 1 1
14 GSC2 N331230310392 * 02 32 29.994 +20 06 43.20       17.51   ~ 1 1
15 XMMU J023230.4+201704 X 02 32 30.426 +20 17 04.60           ~ 1 0
16 XMMU J023233.2+200539 X 02 32 33.215 +20 05 39.75           ~ 1 1
17 GSC2.3 NC6R010173 * 02 32 33.368 +20 05 39.44   20.73   20.41   ~ 1 1
18 XMMU J023248.2+202858 X 02 32 48.277 +20 28 58.01           ~ 1 0
19 QSO B0229+200 BLL 02 32 48.6154943841 +20 17 17.493345304   18.0 18.00     ~ 245 3
20 GSC2 N3312301936 * 02 32 48.635 +20 17 17.54   16.32   13.96   ~ 1 1
21 XMMU J023254.6+202352 X 02 32 54.603 +20 23 52.74           ~ 1 0
22 XMMU J023307.2+201040 X 02 33 07.248 +20 10 40.15           ~ 1 1
23 GSC2.3 NC6R011298 * 02 33 07.277 +20 10 40.27   21.60   20.31 19.24 ~ 1 1
24 XMMU J023310.8+201929 X 02 33 10.871 +20 19 29.55           ~ 1 1
25 GSC2.3 NC6P001373 * 02 33 11.234 +20 19 31.56     19.32 20.04   ~ 1 1
26 USNO-B1.0 1102-00028956 * 02 33 12.181 +20 14 25.00   17.5   16.1   ~ 1 0
27 NVSS J023314+201330 Rad 02 33 14.57 +20 13 30.2           ~ 1 1
28 XMMU J023314.7+200626 X 02 33 14.715 +20 06 26.90           ~ 1 0
29 XMMU J023314.7+200852 X 02 33 14.791 +20 08 52.69           ~ 1 1
30 GSC2.3 NC6R010904 * 02 33 15.185 +20 09 00.53   21.34 19.34 18.51 18.08 ~ 1 1
31 XMMU J023315.2+202553 X 02 33 15.208 +20 25 53.65           ~ 1 1
32 GSC2.3 NC6P013245 * 02 33 15.288 +20 25 55.44   20.48       ~ 1 1
33 XMMU J023315.5+201323 X 02 33 15.554 +20 13 23.39           ~ 1 1
34 XMMU J023318.0+201237 X 02 33 18.050 +20 12 37.19           ~ 1 0
35 XMMU J023321.4+202330 X 02 33 21.475 +20 23 30.11           ~ 1 1
36 GSC2.3 NC6P002203 * 02 33 21.478 +20 23 29.60   21.26   20.22   ~ 1 1
37 XMMU J023323.5+202140 X 02 33 23.568 +20 21 40.04           ~ 1 1
38 GSC2.3 NC6P013116 * 02 33 23.636 +20 21 40.92   21.46     19.15 ~ 1 1
39 UGC 2031 GiG 02 33 24.5017000931 +20 16 22.674015457   15.5       ~ 14 1
40 IRAS 02306+2010 FIR 02 33 26.9 +20 23 37           ~ 1 1
41 XMMU J023328.0+202342 X 02 33 28.066 +20 23 42.91           ~ 1 1
42 SA 95- reg 03 53 21.0 -00 01 10           ~ 81 0
43 2A 1058-226 BLL 11 03 37.6150843895 -23 29 31.202114088   17.00 16.55 16.61   ~ 302 2
44 QSO B1426+428 BLL 14 28 32.6090831425 +42 40 21.050020627   16.95 16.45 14.4   ~ 447 2
45 4C 39.49 BLL 16 53 52.21668494 +39 45 36.6089458 14.09 14.15 13.29 8.26   ~ 1876 2
46 SA 113- reg 21 40 58.9 +00 27 43           ~ 55 0
47 QSO B2344+514 BLL 23 47 04.8376303689 +51 42 17.875387216     15.50 10.7   ~ 375 0

    Equat.    Gal    SGal    Ecl

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2019.11.20-17:02:15

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