Multi-frequency, multi-epoch VLBI observations of the M87 jet
Multi-frequency, multi-epoch VLBI observations of the M87 jet
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M87 喷气式飞机的多频率、多历元 VLBI 观测
DOI：
10.1017/s1743921314003482
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
N.
中科院分区：
文献类型：
--
作者：
Hada;K.;Giroletti;M.;Giovannini;G.;Doi;A.;Kino;M.;Nagai;H.;Honma;M.;and Kawaguchi;N.
我们介绍了从2010年10月开始对VERA 22和43 GHz的M87喷气式飞机进行密集监测项目获得的一些初步结果。该监测器的目的是澄清黑洞附近M87喷流基地的详细物理性质，包括与γ射线产生，喷流运动学和核不透明度的联系。在2012年初发生的一次非常高能量的γ射线活动期间，我们检测到来自M87喷流底部的无线电通量显著增加，这表明γ射线是在中心黑洞附近产生的。
We present some of preliminary results obtained by our dense monitoring project of the M87 jet with VERA 22 and 43 GHz starting from October 2010. The aims of this monitor are to clarify the detailed physical properties of the M87 jet base near the black hole, including the connection to γ-ray productions, jet kinematics and nuclear opacity. We detected a remarkable increase of the radio flux from the jet base of M87 during an elevated very-high-energy γ-ray activity occurred in the early 2012, suggesting that the γ-ray is produced in the immediate vicinity of the central black hole.
影响因子：
6.5
作者：
K. Hada;M. Giroletti;G. Giovannini;C. Casadio;M. Beilicke;A. Cesarini;Teddy Cheung;Akihiro Doi;Henric;Krawczynski;M. Kino;Nick Lee;H. Nagai
通讯作者：
K. Hada;M. Giroletti;G. Giovannini;C. Casadio;M. Beilicke;A. Cesarini;Teddy Cheung;Akihiro Doi;Henric;Krawczynski;M. Kino;Nick Lee;H. Nagai