论文标题
黑暗的超新星残留物
Dark supernova remnant
论文作者
论文摘要
在G35.75-0.25（$ l = 35^\ circ.75，b = -0^\ Circ.25 $）的集体云（MC）中发现了一个几乎完美的共线发射圆孔，直径为3.7 PC，在径向速度为28 km S $^{ - 1} $。与通常的超新星残留物（SNR）不同，无线电连续发射的孔是安静的，并且分子边缘仅在8和24 $ $ $ m $ m灰尘排放中弱可见。该孔可以是围绕年轻恒星物体（YSO）周围的完全进化的分子气泡，也可以是无线电Quiet SNR的遗物，该遗物已在密集的MC迅速发展后已经停止扩张，因为它是埋藏的SNR。由于G35.75与相同大小的YSO驱动气泡具有截然不同的特性，因此我们更喜欢后一种解释。这种“黑暗” SNR的存在会影响超新星速率的估计，因此会影响银河系中的恒星形成历史。
An almost perfect round hole of CO-line emission with a diameter of 3.7 pc was found in a molecular cloud (MC) centered on G35.75-0.25 ($l = 35^\circ.75, b = -0^\circ.25$) at radial velocity of 28 km s$^{-1}$. The hole is quiet in radio continuum emission, unlike the usual supernova remnants (SNR), and the molecular edge is only weakly visible in 8 and 24 $μ$m dust emissions. The hole may be either a fully evolved molecular bubble around a young stellar object (YSO), or a relic of a radio-quiet SNR that has already stopped expansion after rapid evolution in the dense MC as a buried SNR. Because G35.75 exhibits quite different properties from YSO-driven bubbles of the same size, we prefer the latter interpretation. Existence of such a "dark" SNR would affect the estimation of the supernova rate, and therefore the star formation history in the Galaxy.
