Daily monitor of Sagittarius A* at 22 GHz with the Japanese VLBI Network

Daily monitor of Sagittarius A* at 22 GHz with the Japanese VLBI Network
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使用日本 VLBI 网络在 22 GHz 下每日监测 Sagittarius A*

DOI：
10.1017/s1743921314000969
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发表时间：
2014
期刊：
“The galactic center: Feeding and feedback in a normal galactic nucleus”, IAUS
影响因子：
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通讯作者：
& A. Takumi
& A. Takumi
中科院分区：
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文献类型：
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作者：
M. Tsuboi;Y. Asaki;Y. Yonekura;Y. Miyamoto;H. Kaneko;M. Seta;N. Nakai;O. Kameya;M. Miyoshi;H. Takaba;K. Wakamatsu;Y. Fukuzaki;T. Morimitsu;K. Uehara;M. Sekido;T. Oka;S. Takekawa;T. Omodaka;T. Handa;& A. Takumi

文献摘要

相似文献

从2013年2月11日（DOY= 42）开始，我们利用日本VLBI网络的子阵列监测人马座A*(Sgr A*)在22 GHz的辐射密度，以寻找G2云与吸积盘相互作用导致人马座A* 22 GHz辐射增加的原因。在DOY= 322（2013年11月18日）之前观测到的通量密度与云接近前的观测值一致。在此期间我们没有探测到大的耀斑。(出版文摘)
We have been monitoring the flux density of Sagittarius A*(Sgr A*) at 22 GHz since DOY= 42 (11 Feb. 2013) with a sub-array of the Japanese VLBI Network in order to search the increase of 22-GHz emission from Sgr A* induced by the interaction of the G2 cloud with the accretion disk. The flux densities observed until DOY= 322 (18 Nov. 2013) are consistent with the previously observed values before the approaching of the cloud. We have detected no large flare during this period.[PUBLICATION ABSTRACT]