Milky Way中的射频FIR相关
The Radio-FIR correlation in the Milky Way
摘要：
我们调查的规模上出现的相关性之间的843兆赫的无线电和60微米的远红外（FIR）发射恒星形成的地区在银河系。这种相关性存在于所研究的最小尺度（低至~4 pc）上，在30 '尺度的场上变得明显紧密，对应于~20-50 pc的物理尺度。在这个尺度上，远红外线与射电流量之比与热辐射占主导地位的射电辐射一致。我们还调查的位置依赖性q_mean，一个参数测量的平均FIR无线电流量比，一个样本的恒星形成区域。我们表明，q_mean显示一个适度的依赖于银河系的纬度。如果这被解释为依赖于恒星形成活动的强度，那么这个结果与对大麦云（LMC）和其他附近星系的研究是一致的，这些研究表明在恒星形成增强的区域q值升高。
英文摘要：
We investigate the scale on which the correlation arises between the 843 MHz radio and the 60 micron far-infrared (FIR) emission from star forming regions in the Milky way. The correlation, which exists on the smallest scales investigated (down to ~4 pc), becomes noticeably tight on fields of size 30', corresponding to physical scales of ~20-50 pc. The FIR to radio flux ratio on this scale is consistent with the radio emission being dominated by thermal emission. We also investigate the location dependence of q_mean, a parameter measuring the mean FIR to radio flux ratio, of a sample of star forming regions. We show that q_mean displays a modest dependence on galactic latitude. If this is interpreted as a dependence on the intensity of star formation activity, the result is consistent with studies of the Large Magellanic Cloud (LMC) and other nearby galaxies that show elevated values for q in regions of enhanced star formation.
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