A new sample of large angular size radio galaxies I.: The radio data

被引：91

作者：

Lara, L

Cotton, WD

Feretti, L

Giovannini, G

Marcaide, JM

Márquez, I

Venturi, T

机构：

[1] CSIC, Inst Astrofis Andalucia, E-18080 Granada, Spain

[2] Natl Radio Astron Observ, Charlottesville, VA 22903 USA

[3] CNR, Ist Radioastron, I-40129 Bologna, Italy

[4] Univ Bologna, Dipartmento Fis, I-40127 Bologna, Italy

[5] Univ Valencia, Dept Astron, E-46100 Burjassot, Spain

来源：

ASTRONOMY & ASTROPHYSICS | 2001年 / 370卷 / 02期

关键词：

galaxies : active; galaxies : nuclei; galaxies : jets; radio continuum : galaxies;

D O I：

10.1051/0004-6361:20010254

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Wie present a new sample of 84 large angular size radio galaxies selected from the NRAO VLA Sky Survey. Radio sources with declination above +60 degrees, total flux density greater than 100 mJy at 1.4 GHz and angular size larger than 4 ' have been selected and observed with the VLA at 1.4 and 4.9 GHz. The radio observations attempt to confirm the large angular size sources and to isolate the core emission for optical identification. In this paper, the first of a series of three, we present radio maps of 79 sources from the sample and discuss the effects of the selection criteria in the final sample. 37 radio galaxies belong to the class of giants, of which 22 are reported in this paper for the first time.

引用

页码：409 / 425

页数：17