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Discovery of an unusual radio galaxy with a hybrid double-double and X-shaped morphology

【标题】Discovery of an unusual radio galaxy with a hybrid double-double and X-shaped morphology

【Title】Discovery of an unusual radio galaxy with a hybrid double-double and X-shaped morphology

【DOI】10.1017/S1743921312020224

【作者】 Wang, C. C.; 周宏岩; 纪拓; Liu, W. J.; Jiang, N.

【Author】 Wang, C. C. ; Zhou Hongyan ; Ji Tuo ; Liu, W. J. ; Jiang, N.

【期刊】Feeding Compact Objects

【Journal】

【期刊年份】2013

【卷】290

【期】

【关键词】 Galaxies:jets; black hole physics; radio continuum:galaxies

【Keywords】 Galaxies:jets; black hole physics; radio continuum:galaxies

【摘要】We report the discovery of the first `X'-shaped double-double radio galaxy (DDRG), MRC0929+164 (J0932+1611), from FIRST radio survey. The intersection angle of the lines of two pairs of radio lobes is around 20.6° for this object, much larger than other DDRGs. This unusual morphology may be a hint that the growth of its central super-massive black hole suffered a violent galaxy merger once.

【Abstract】We report the discovery of the first `X'-shaped double-double radio galaxy (DDRG), MRC0929+164 (J0932+1611), from FIRST radio survey. The intersection angle of the lines of two pairs of radio lobes is around 20.6° for this object, much larger than other DDRGs. This unusual morphology may be a hint that the growth of its central super-massive black hole suffered a violent galaxy merger once.

【基金/项目】 grants NSFC (11033007, 10973012, 11073019) ; 973 program (2007CB815405) ; the Fundamental Research Funds for the Chinese Central Universities with grants WK2030220006 and WK2030220004

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