论文标题
显然不重复的FRB的来源
The Sources of Apparently Non-Repeating FRB
论文作者
论文摘要
如果每个这样的灾难性事件都会产生一个单一的FRB，则没有足够的灾难性事件（崩溃，爆炸或恒星或紧凑物体的合并）来解释宇宙学上局部局部局部速率。除非某些新颖且无引起的但相对频繁的事件产生，否则显然不重复的FRB实际上必须在其来源的一生中重复多次。然而，尚未观察到这种不经常的重复（与已知重复的FRB的频繁活性相比），从而限制了它们的重复率和活跃的寿命。在明显的非复制者中，没有更频繁的弱弱但可检测到的重复爆发类似于SGR爆发的分布，在巨大的爆发和较小的爆发之间存在很大的差距。这表明Mini-SGR作为来源，比SGR 1935 $+$ 2154更具活力，与FRB 200428相关，但与没有相关FRB相关的SGR 1806 $ -20的精力不足。在宇宙学的距离上，他们最大的无线电爆发显然是不重复的FRB，而他们的X射线和伽马射线爆发将是无法发现的。 FRB 200428最强爆发与其较小的爆发之间的巨大差距类似于单个观察到的单个SGR的伽马射线特性； FRB 200428在其实际距离的二十倍本来是一个明显的非重组者。
There are insufficient catastrophic events (collapse, explosion or merger of stars or compact objects) to explain the cosmologically local rate of apparently non-repeating FRB if each such catastrophic event produces a single FRB. Unless produced by some novel and unsuspected but comparatively frequent event, apparently non-repeating FRB must actually repeat many times in the lifetimes of their sources. Yet no such infrequent repetitions (in contrast to the frequent activity of FRB known to repeat) have been observed, constraining their repetition rates and active lifetimes. The absence of more frequent weaker but detectable repetitive outbursts in apparent non-repeaters resembles the distribution of SGR outbursts, with a large gap between giant outbursts and lesser outbursts. This suggests mini-SGR as sources, more energetic than SGR 1935$+$2154 associated with FRB 200428 but less energetic than SGR 1806$-$20 that had no associated FRB. Their largest radio outbursts would, at cosmological distances, be apparently non-repeating FRB and their X-ray and gamma-ray outbursts would be undetectable. The large gap between the strongest outburst of FRB 200428 and its lesser outbursts resembles the gamma-ray properties of individual well-observed SGR; at twenty times its actual distance, FRB 200428 would have been an apparent non-repeater.
