论文标题
超新星残留G359.1-0.5的分子环境
Molecular environments of the supernova remnant G359.1-0.5
论文作者
论文摘要
我们报告了新的CO观察结果和对混合形态（MM）超新星残留（SNR）G359.1-0.5的详细分子研究研究，其中包含沿着无线电壳沿线的六个OH（1720 MHz）masers，这表明是冲击云的相互作用。使用KIT峰12米望远镜在38x38 Arcmin区域中对12CO和13CO J：1-0线进行观察。该分子研究表明，存在几个团块，其密度约为1,000 cm $^{ - 3} $与OH（1720 MHz）masers的速度和位置兼容。这些团块反过来似乎是较大的细长分子结构的一部分〜34 arcmin长在-12.48至+1.83 km/s之间，毗邻无线电壳的西边缘。根据相对于masers的密度和相对位置，我们得出的结论是，CO云描绘了未落下的气体，如在OH（1720 MHz）Masers的其他残留物中所观察到的。此外，我们研究了分子气体向相邻的伽马射线源Hess J1745-303的分布，但在该区域的任何速度下都找不到伽马射线与CO发射之间的任何形态相关性。
We report new CO observations and a detailed molecular-line study of the mixed morphology (MM) supernova remnant (SNR) G359.1-0.5, which contains six OH (1720 MHz) masers along the radio shell, indicative of shock-cloud interaction. Observations of 12CO and 13CO J:1-0 lines were performed in a 38x38 arcmin area with the on-the-fly technique using the Kit Peak 12 Meter telescope. The molecular study has revealed the existence of a few clumps with densities around 1,000 cm$^{-3}$ compatible in velocity and position with the OH (1720 MHz) masers. These clumps, in turn, appear to be part of a larger, elongated molecular structure ~34 arcmin long extending between -12.48 and +1.83 km/s, adjacent to the western edge of the radio shell. According to the densities and relative position with respect to the masers, we conclude that the CO clouds depict unshocked gas, as observed in other remnants with OH (1720 MHz) masers. In addition, we investigated the distribution of the molecular gas towards the adjacent gamma-ray source HESS J1745-303 but could not find any morphological correlation between the gamma-rays and the CO emission at any velocity in this region.
