A 5 GHz Southern Hemisphere VLBI survey of compact radio sources. II.

被引：39

作者：

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

机构：

[1] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA

[2] Shanghai Astron Observ, Shanghai 200030, Peoples R China

[3] Australia Telescope Natl Facil, Epping, NSW 2121, Australia

[4] Inst Space & Astronaut Sci, Sagamihara, Kanagawa 229, Japan

[5] Univ Western Australia, Dept Phys, Nedlands, WA 6009, Australia

[6] Mt Stromlo & Siding Spring Observ, Weston Creek, ACT 2611, Australia

[7] Univ Tasmania, Dept Phys, Hobart, Tas 7001, Australia

[8] Hartebeesthoek Radio Astron Observ, ZA-1740 Krugersdorp, South Africa

[9] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA

[10] Univ Western Sydney Nepean, Dept Phys, Kingswood, NSW 2747, Australia

来源：

ASTRONOMICAL JOURNAL | 1998年 / 115卷 / 04期

关键词：

BL Lacertae objects; general; radio continuum; surveys;

D O I：

10.1086/300284

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We report the results of a 5 GHz Southern Hemisphere snapshot VLBI observation of a sample of blazars. The observations were performed with the Southern Hemisphere VLBI Network plus the Shanghai station in 1993 May. Twenty-three hat-spectrum, radio-loud sources were imaged. These are the first VLBI images for 15 of the sources. Eight of the sources are EGRET (>100 MeV) gamma-ray sources. The milliarcsecond morphology shows a core-jet structure for 12 sources and a single compact core for the remaining 11. No compact doubles were seen. Compared with other radio images at different epochs and/or different frequencies, three core-jet blazars show evidence of bent jets, and there is some evidence for superluminal motion in the cases of two blazars. Detailed descriptions for individual blazars are given.

引用

页码：1357 / 1370

页数：14

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