BAT AGN spectroscopic survey - XV: the high frequency radio cores of ultra-hard X-ray selected AGN
BAT AGN spectroscopic survey - XV: the high frequency radio cores of ultra-hard X-ray selected AGN
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DOI：
10.1093/mnras/stz3608
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发表时间：
2020-01
影响因子：
4.8
通讯作者：
K. Smith;R. Mushotzky;M. Koss;B. Trakhtenbrot;C. Ricci;C. Ricci;O. I. Wong;F. Bauer;F. Bauer;F. Bauer;F. Ricci;S. Vogel;D. Stern;M. Powell;C. M. Urry;F. Harrison;J. Mejía-restrepo;K. Oh;K. Oh;J. Baek;A. Chung
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文献类型：
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作者：
K. Smith;R. Mushotzky;M. Koss;B. Trakhtenbrot;C. Ricci;C. Ricci;O. I. Wong;F. Bauer;F. Bauer;F. Bauer;F. Ricci;S. Vogel;D. Stern;M. Powell;C. M. Urry;F. Harrison;J. Mejía-restrepo;K. Oh;K. Oh;J. Baek;A. Chung
我们对Swift-BAT在14-195 keV下选择的100个低红移AGN进行了1弧秒分辨率的22 GHz无线电成像。我们发现无线电核心探测率为96%，远高于低频无线电调查。在无线电探测到的96个AGN中，55个具有致密的形态，30个具有与核恒星形成一致的形态，11个具有亚kpc到kpc规模的喷流。我们发现总射电功率不区分核星形成和射流作为射电发射的起源。对于87个天体，我们使用光谱学来测试AGN物理参数在射电形态类型之间是否存在差异。我们发现，当22 GHz形貌为喷流状时，x射线光度趋于较高，但其他物理参数没有显著差异。我们发现x射线和核心射电光度之间的关系与日冕活动恒星的LR/LX ~ 10−5一致。我们进一步发现，黑洞活动的标准基本平面系统地高估了我们的射电亮度，特别是对于具有恒星形成形态的物体。
We have conducted 22 GHz radio imaging at 1 arcsec resolution of 100 low-redshift AGN selected at 14–195 keV by the Swift-BAT. We find a radio core detection fraction of 96 per cent, much higher than lower frequency radio surveys. Of the 96 radio-detected AGN, 55 have compact morphologies, 30 have morphologies consistent with nuclear star formation, and 11 have sub-kpc to kpc-scale jets. We find that the total radio power does not distinguish between nuclear star formation and jets as the origin of the radio emission. For 87 objects, we use optical spectroscopy to test whether AGN physical parameters are distinct between radio morphological types. We find that X-ray luminosities tend to be higher if the 22 GHz morphology is jet-like, but find no significant difference in other physical parameters. We find that the relationship between the X-ray and core radio luminosities is consistent with the LR/LX ∼ 10−5 of coronally active stars. We further find that the canonical fundamental planes of black hole activity systematically overpredict our radio luminosities, particularly for objects with star formation morphologies.