Sub-milliarcsecond imaging of quasars and active galactic nuclei. II. Additional sources

被引:92
作者
Zensus, JA
Ros, E
Kellermann, KI
Cohen, MH
Vermeulen, RC
Kadler, M
机构
[1] Max Planck Inst Radioastron, D-53121 Bonn, Germany
[2] Natl Radio Astron Observ, Charlottesville, VA 22903 USA
[3] CALTECH, Dept Astron, Pasadena, CA 91125 USA
[4] Netherlands Fdn Res Astron, NL-7990 AA Dwingeloo, Netherlands
关键词
galaxies : active; galaxies : jets; galaxies : nuclei;
D O I
10.1086/341585
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We report further results from our imaging survey at 15 GHz (lambda = 2 cm) with the Very Long Baseline Array (VLBA). This paper presents single-epoch images for 39 sources, bringing the total number of objects in the sample to 171. Our sample is representative of a complete unbiased sample, and it will be used for statistical analysis of source properties. We compare the observed brightness temperatures derived from our VLBA observations with those derived from total intensity variations at 22 and 37 GHz. These are consistent with intrinsic brightness temperatures in the range 10(10)-10(12) K. We also present three new spectroscopic redshift values: z = 0.517 +/- 0.001 for 0026+346, z = 1.591 +/- 0.003 for 0727-115, and z = 0.2016 +/- 0.0004 for 1155+251.
引用
收藏
页码:662 / 674
页数:13
相关论文
共 114 条
[91]   EQUIPARTITION BRIGHTNESS TEMPERATURE AND THE INVERSE COMPTON CATASTROPHE [J].
READHEAD, ACS .
ASTROPHYSICAL JOURNAL, 1994, 426 (01) :51-59
[92]  
REID A, 1995, ASTRON ASTROPHYS SUP, V110, P213
[93]   Absolute kinematics of radio source components in the complete S5 polar cap sample -: I.: First and second epoch maps at 8.4 GHz [J].
Ros, E ;
Marcaide, JM ;
Guirado, JC ;
Pérez-Torres, MA .
ASTRONOMY & ASTROPHYSICS, 2001, 376 (03) :1090-1105
[94]   14-year program monitoring the flux densities of 33 radio sources at low frequencies [J].
Salgado, JF ;
Altschuler, DR ;
Ghosh, T ;
Dennison, BK ;
Mitchell, KJ ;
Payne, HE .
ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1999, 120 (01) :77-93
[95]   The Hubble Space Telescope survey of BL lacertae objects.: I.: Surface brightness profiles, magnitudes, and radii of host galaxies [J].
Scarpa, R ;
Urry, CM ;
Falomo, R ;
Pesce, JE ;
Treves, A .
ASTROPHYSICAL JOURNAL, 2000, 532 (02) :740-815
[96]   THE HUBBLE SPACE TELESCOPE NORTHERN-HEMISPHERE GRID OF STELLAR POLARIMETRIC STANDARDS [J].
SCHMIDT, GD ;
ELSTON, R ;
LUPIE, OL .
ASTRONOMICAL JOURNAL, 1992, 104 (04) :1563-1567
[97]   A 5 GHz Southern Hemisphere VLBI survey of compact radio sources. II. [J].
Shen, ZQ ;
Wan, TS ;
Moran, JM ;
Jauncey, DL ;
Reynolds, JE ;
Tzioumis, AK ;
Gough, RG ;
Ferris, RH ;
Sinclair, MW ;
Jiang, DR ;
Hong, XY ;
Liang, SG ;
Edwards, PG ;
Costa, ME ;
Tingay, SJ ;
McCulloch, PM ;
Lovell, JEJ ;
King, EA ;
Nicolson, GD ;
Murphy, DW ;
Meier, DL ;
van Ommen, TD ;
White, GL .
ASTRONOMICAL JOURNAL, 1998, 115 (04) :1357-1370
[98]   A 5-GHz southern hemisphere VLBI survey of compact radio sources .1. [J].
Shen, ZQ ;
Wan, TS ;
Moran, JM ;
Jauncey, DL ;
Reynolds, JE ;
Tzioumis, AK ;
Gough, RG ;
Ferris, RH ;
Sinclair, MW ;
Jiang, DR ;
Hong, XY ;
Liang, SG ;
Costa, ME ;
Tingay, SJ ;
McCulloch, PM ;
Lovell, JEJ ;
King, EA ;
Nicolson, GD ;
Murphy, DW ;
Meier, DL ;
vanOmmen, TD ;
Edwards, PG ;
White, GL .
ASTRONOMICAL JOURNAL, 1997, 114 (05) :1999-2015
[99]   Streaming motions of galaxy clusters within 12 000 km s-1 -: I.: New spectroscopic data [J].
Smith, RJ ;
Lucey, JR ;
Hudson, MJ ;
Schlegel, DJ ;
Davies, RL .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 313 (03) :469-490
[100]  
Stanghellini C, 1997, ASTRON ASTROPHYS, V325, P943