论文标题
HCN 3-2调查对本地星系样本
HCN 3-2 survey towards a sample of local galaxies
论文作者
论文摘要
我们提出了使用10米亚毫米望远镜（SMT）对HCN 3-2排放37局部星系的观察结果。在23个星系中检测到HCN 3-2发射。红外发光度（LIR）的相关性与样品中测得的HCN 3-2线发射的光度的相关性与斜率为1.11，相关系数为0.91，这是在文献中其他密集的加油站中发现的线性相关性。 Although molecular gas above a certain volume density threshold (i.e., $n_{\rm H_2}\geq$ 10$^4$ cm$^{-3}$) statistically gave similar relation with infrared luminosity, the large scatter of HCN 3-2/HCN1-0 ratios for galaxies with different LIR indicates that dense gas masses estimated from the line luminosities of only one密集的气体示踪剂的过渡应谨慎对待单个星系。
We present observations of HCN 3-2 emissions towards 37 local galaxies using 10-m Submillimeter Telescope (SMT). HCN 3-2 emission is detected in 23 galaxies. The correlation of infrared luminosity (LIR) and the luminosity of HCN 3-2 line emission measured in our sample is fitted with a slope of 1.11 and correlation coefficient of 0.91, which follows the linear correlation found in other dense gas tracers in the literatures. Although molecular gas above a certain volume density threshold (i.e., $n_{\rm H_2}\geq$ 10$^4$ cm$^{-3}$) statistically gave similar relation with infrared luminosity, the large scatter of HCN 3-2/HCN1-0 ratios for galaxies with different LIR indicates that dense gas masses estimated from the line luminosities of only one transition of dense gas tracers should be treated with caution for individual galaxies.
