2002A&A...382...53D

Query : 2002A&A...382...53D

2002A&A...382...53D - Astronomy and Astrophysics, volume 382, 53-59 (2002/1-4)

Optical identifications of High Frequency Peakers.

DALLACASA D., FALOMO R. and STANGHELLINI C.

Abstract (from CDS):

We present CCD observations of 13 objects from a complete sample of 55 bright High Frequency Peaker (HFP) radio sources, and provide optical identification for 12 of them. Images in R and V filters have been used to derive some additional information concerning the host of the radio source. Three hosts are likely to be galaxies, one resulted slightly extended, while the remaining 8 are likely distant quasars. Based on these identifications and those available in the literature, we find that the fraction of quasars in our HFP sample is significantly higher than in samples of Compact Steep-Spectrum and GHz-Peaked Spectrum radio sources.

Abstract Copyright: ∼

Journal keyword(s): galaxies: active - radio continuum: galaxies - quasars: general

Simbad objects: 15

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Number of rows : 15
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024 		#notes
1 ICRF J000319.3+212944 Sy2 00 03 19.35000596 +21 29 44.5083164   21.005 20.580 19.650   ~ 44 1
2 ICRF J003732.1+080813 Bz? 00 37 32.19718344 +08 08 13.0569095       22.31   ~ 24 1
3 HD 14765 * 02 22 55.0906230408 +02 21 03.920544756   10.09 9.60     F6/7V 13 0
4 ICRF J032915.3+351005 BLL 03 29 15.3548503584 +35 10 05.989666620       17.60   ~ 45 1
5 QSO J0357+2319 QSO 03 57 21.60989042 +23 19 53.8251826       18.78   ~ 44 1
6 ICRF J042805.8+325952 QSO 04 28 05.80875891 +32 59 52.0442031       21.39   ~ 45 0
7 ICRF J181143.1+170457 BLL 18 11 43.18346508 +17 04 57.2575194       18.98   ~ 31 0
8 ICRF J185527.7+374256 QSO 18 55 27.70681096 +37 42 56.9655757       20.20   ~ 36 1
9 ICRF J202135.2+051504 QSO 20 21 35.28120633 +05 15 04.7781809       21.70   ~ 38 0
10 [VV96] J202456.5+171814 QSO 20 24 56.5636552128 +17 18 13.196337192   17.5 19.5 17.51   ~ 50 1
11 ICRF J211458.3+283257 QSO 21 14 58.33362526 +28 32 57.1966465   18.6   18.91   ~ 41 1
12 ICRF J220330.9+100742 Bz? 22 03 30.95260247 +10 07 42.5863773       21.38   ~ 40 0
13 ICRF J220752.8+165217 QSO 22 07 52.86567746 +16 52 17.8154293   19.5 19.5 19.98   ~ 43 1
14 QSO B2209+236 QSO 22 12 05.96631459 +23 55 40.5438259   19 20.66 19.69   ~ 230 1
15 PG 2331+055 HS? 23 33 44.4698554608 +05 46 39.793017432 14.629 15.116 15.182 15.194 15.226 sd 36 0

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