A multiwavelength study of the extreme AGN J2310-437

被引：10

作者：

Worrall, DM ^{[1
]}

Birkinshaw, M

Remillard, RA

Prestwich, A

Tucker, WH

Tananbaum, H

机构：

[1] Univ Bristol, Dept Phys, Bristol BS8 1TH, Avon, England

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

[3] MIT, Cambridge, MA 02139 USA

来源：

ASTROPHYSICAL JOURNAL | 1999年 / 516卷 / 01期

关键词：

BL Lacertae objects : individual (J2310-437); galaxies : active; X-rays : galaxies;

D O I：

10.1086/307074

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present new X-ray, radio, and optical data for the unusual galaxy/cluster system J2310-437. Our results confirm the presence of an active nucleus and suggest an interpretation as an anomalous BL Lac object of bulk relativistic Doppler factor <2, with an optically deficient radio to X-ray spectrum. The radio, optical, and soft X-ray flux densities could lie along a single power-law function, lacking the curvature typical of BL Lac objects. Compared with other known sources that may have comparable multifrequency spectra, J2310-437 is the most extreme. Its low isotropic optical/UV radiation is consistent with the intensity of external photons governing the electron spectral break through Compton cooling; in this source the external photon density would be too low to produce a spectral break below the X-ray.

引用

页码：163 / 176

页数：14

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