14-year program monitoring the flux densities of 33 radio sources at low frequencies

被引：9

作者：

Salgado, JF ^{[1
]}

Altschuler, DR

Ghosh, T

Dennison, BK

Mitchell, KJ

Payne, HE

机构：

[1] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA

[2] Natl Astron & Ionosphere Ctr, Arecibo Observ, Arecibo, PR 00612 USA

[3] Virginia Polytech Inst & State Univ, Dept Phys, Blacksburg, VA 24061 USA

[4] Gen Sci Corp, Beltsville, MD 20705 USA

[5] Space Telescope Sci Inst, Baltimore, MD 21218 USA

来源：

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES | 1999年 / 120卷 / 01期

关键词：

ISM; general; quasars; radio continuum; galaxies;

D O I：

10.1086/313169

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the results of a low-frequency flux density monitoring program of 33 extragalactic radio sources. The light curves at 318 and 430 MHz over a 14 yr period are presented. The measurements were made with the NAIC Arecibo 305 m radio telescope at approximately bimonthly intervals between 1980 January and 1989 February and at less regular intervals between 1989 October and 1993 October, for a total of 64 observing sessions. In addition, we provide a first discussion of the results, pointing out several source properties and interesting objects.

引用

页码：77 / 93

页数：17

共 22 条

[1]

Altschuler D. R., 1989, Fundamentals of Cosmic Physics, V14, P37

[2]

Altschuler DR, 1995, ASTRON ASTROPHYS SUP, V114, P197

[3] MULTIFREQUENCY LIGHT CURVES OF LOW-FREQUENCY VARIABLE RADIO-SOURCES [J].