ON THE DETECTABILITY OF DUAL JETS FROM BINARY BLACK HOLES
ON THE DETECTABILITY OF DUAL JETS FROM BINARY BLACK HOLES
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DOI：
10.1088/2041-8205/749/2/l32
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发表时间：
2011-09
期刊：
影响因子：
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通讯作者：
P. Moesta;D. Alic;L. Rezzolla;O. Zanotti;C. Palenzuela
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文献类型：
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作者：
P. Moesta;D. Alic;L. Rezzolla;O. Zanotti;C. Palenzuela
我们重新审视了这样的建议：当超大质量黑洞浸入由均匀磁场穿过的无力等离子体中时，在超大质量黑洞的吸气和合并过程中可以产生双喷流。通过对后期吸气和合并进行独立计算，并以与使用坡印廷通量估计一致的方式计算电磁（EM）发射，我们表明存在双射流结构，但相对于非准直且主要是四极发射，其能量处于次要地位，这与双星处于电真空时计算的发射类似。虽然我们的研究结果严重限制了聚结双星双射流的可探测性，但它们也增加了从这些系统中探测到电磁对应物的机会。
We revisit the suggestion that dual jets can be produced during the inspiral and merger of supermassive black holes when these are immersed in a force-free plasma threaded by a uniform magnetic field. By performing independent calculations of the late inspiral and merger, and by computing the electromagnetic (EM) emission in a way which is consistent with estimates using the Poynting flux, we show that a dual-jet structure is present but energetically subdominant with respect to a non-collimated and predominantly quadrupolar emission, which is similar to the one computed when the binary is in electrovacuum. While our findings set serious restrictions on the detectability of dual jets from coalescing binaries, they also increase the chances of detecting an EM counterpart from these systems.