Narrow head-tail radio galaxies at very high resolution

被引：20

作者：

de Gregory, B. Terni ^{[1
]}

Feretti, L. ^{[1
]}

Giovannini, G. ^{[1
,2
]}

Govoni, F. ^{[3
]}

Murgia, M. ^{[3
]}

Perley, R. A. ^{[4
]}

Vacca, V. ^{[3
]}

机构：

[1] INAF, Ist Radioastron, Via Gobetti 101, I-40129 Bologna, Italy

[2] Univ Bologna, DIFA, Via Gobetti 93-2, I-40129 Bologna, Italy

[3] INAF, Osservatorio Astron Cagliari, Via Sci 5, I-09047 Selargius, CA, Italy

[4] Natl Radio Astron Observ, POB 0, Socorro, NM 87801 USA

来源：

ASTRONOMY & ASTROPHYSICS | 2017年 / 608卷

关键词：

galaxies: clusters: general; intergalactic medium; radio continuum: general; X-rays: general; ACTIVE GALACTIC NUCLEI; RAY-CLUSTER ABELL-2256; X-RAY; ELLIPTIC GALAXIES; VLA OBSERVATIONS; TEMPERATURE MAP; EMISSION; SAMPLE; HALO; OPHIUCHUS;

D O I：

10.1051/0004-6361/201730878

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Aims. Narrow-angle tailed (NAT) sources in clusters of galaxies can show on the large scale very narrow tails that are unresolved even at arcsecond resolution. These sources could therefore be classified as one-sided jets. The aim of this paper is to gain new insight into the structure of these sources, and establish whether they are genuine one-sided objects, or if they are two-sided sources. Methods. We observed a sample of apparently one-sided NAT sources at subarcsecond resolution to obtain detailed information on their structure in the nuclear regions of radio galaxies. Results. Most radio galaxies are found to show two-sided jets with sharp bends, and therefore the sources are similar to the more classical NATs, which are affected by strong projection effects.

引用

页数：11

共 50 条

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