Multifrequency radio observations of the gravitational lens system MG 0414+0534

被引：32

作者：

Katz, CA ^{[1
]}

Moore, CB ^{[1
]}

Hewitt, JN ^{[1
]}

机构：

[1] MIT,ELECT RES LAB,CAMBRIDGE,MA 02139

来源：

ASTROPHYSICAL JOURNAL | 1997年 / 475卷 / 02期

关键词：

quasars; individual; (MG; 0414+0534); gravitational lensing; radio continuum; galaxies;

D O I：

10.1086/303575

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The four-image gravitational lens system MG 0414+0534 was observed with the VLA at 1.4, 5, 8, 15, and 22 GHz. The 15 and 22 GHz images reveal structure in the components which is consistent with that seen at other wavelengths. There was no detection of other extended emission, nor were there detections of the lensing galaxy or the ''component x'' seen in optical images. Detections of polarized emission show that the fractional polarized intensity is less than or similar to 1%. The observed properties of MG 0414 suggest that it is a GHz-peaked spectrum source.

引用

页码：512 / 518

页数：7

共 42 条

[1]

ANGONINWILLAIME MC, 1994, ASTRON ASTROPHYS, V281, P388

[2] THE MIT GREEN BANK (MG) 5 GHZ SURVEY [J].

BENNETT, CL ;

LAWRENCE, CR ;

BURKE, BF ;

HEWITT, JN ;

MAHONEY, J .

ASTROPHYSICAL JOURNAL SUPPLEMENT SERIES, 1986, 61 (01) :1-&

[3] COSMOLOGICAL APPLICATIONS OF GRAVITATIONAL LENSING [J].

BLANDFORD, RD ;

NARAYAN, R .

ANNUAL REVIEW OF ASTRONOMY AND ASTROPHYSICS, 1992, 30 :311-358

[4]

Bolton J. G., 1979, AuJPA, V46, P1

[5]

Briggs D. S., 1995, PhD thesis

[6]

Briggs D. S., 1994, IAU S, V158, P212

[7] A 4.85 GHZ SKY SURVEY .2. MAPS COVERING -40-DEGREES-LESS-THAN-DELTA-LESS-THAN-+5-DEGREES, OH-LESS-THAN-ALPHA-LESS-THAN-20H [J].

CONDON, JJ ;

BRODERICK, JJ ;

SEIELSTAD, GA .

ASTRONOMICAL JOURNAL, 1991, 102 (06) :2041-2046

[8]

CONDON JJ, 1993, BAAS, V183

[9]

ELLITHORPE JD, 1995, THESIS MIT

[10]

FALCO EE, 1993, GRAVITATIONAL LENSES, P127

← 1 2 3 4 5 →