HIGH REDSHIFT RADIO GALAXIES FROM THE 3RD BOLOGNA CATALOG .1.

被引:36
作者
MCCARTHY, PJ
机构
[1] Observatories Carnegie Inst. W., Pasadena, CA 91101
关键词
D O I
10.1086/115890
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
I report on the results of optical observations of a sample of 1 Jy class radio galaxies selected from the Third Bologna Catalogue. The sources were selected to have 408 MHz flux densities greater than 1.0 Jy, 408 MHz spectral indices steeper than - 0.9 and no identifications at the limit of the Palomar Sky Survey. Optical identifications and redshifts for eight sources are presented. Most of these sources are identified with faint galaxies with redshifts of order 1. Two of the identifications have strong Ly alpha emission at redshifts between 2 and 3. A Ly alpha-image of one of these objects shows extended emission over roughly 50 kpc.
引用
收藏
页码:518 / 521
页数:4
相关论文
共 6 条
[1]  
Ficarra A., 1985, Astronomy & Astrophysics Supplement Series, V59, P255
[2]   THE MOLONGLO REFERENCE CATALOG OF RADIO-SOURCES [J].
LARGE, MI ;
MILLS, BY ;
LITTLE, AG ;
CRAWFORD, DF ;
SUTTON, JM .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1981, 194 (02) :693-704
[3]   HIGH-REDSHIFT RADIO GALAXIES FROM THE MOLONGLO CATALOG [J].
MCCARTHY, PJ ;
KAPAHI, VK ;
VANBREUGEL, W ;
SUBRAHMANYA, CR .
ASTRONOMICAL JOURNAL, 1990, 100 (04) :1014-&
[4]  
MCCARTHYPJ, 1991, AJ, V102, P522
[5]   ABSOLUTE SPECTRAL ENERGY-DISTRIBUTIONS FOR WHITE-DWARFS [J].
OKE, JB .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1974, 27 :21-35
[6]   STRUCTURES, SPECTRAL INDEXES, AND OPTICAL IDENTIFICATIONS OF RADIO-SOURCES SELECTED FROM THE B3-CATALOG [J].
VIGOTTI, M ;
GRUEFF, G ;
PERLEY, R ;
CLARK, BG ;
BRIDLE, AH .
ASTRONOMICAL JOURNAL, 1989, 98 (02) :419-499