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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >Common correlations between 60, 100, and 140 mu m intensities in the galactic plane and Magellanic Clouds
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Common correlations between 60, 100, and 140 mu m intensities in the galactic plane and Magellanic Clouds

机译：银河平面和麦哲伦星云中60、100和140μm强度之间的常见相关性

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摘要

We investigated the far-infrared SED of the Galaxy and the Magellanic Clouds by using the COBE (COsmic Background Explorer)/DIRBE (Diffuse InfraRed Background Experiment) ZSMA (Zodi-Subtracted Mission Average) maps at wavelengths of 60 mu m, 100 mu m, and 140 mu m. We analyzed three regions: the galactic plane region with the galactic latitude vertical bar b vertical bar < 5 degrees, the Large Magellanic Cloud region, and the Small Magellanic Cloud region. Because the dust optical depth is much smaller in the far-infrared than in the visible, we could observe cumulative far-infrared radiation from regions with various interstellar radiation field in the line of sight. As a consequence of considering such an effect, we found a common far-infrared color correlation between the 140-100 mu m and 10060 mu m intensity ratios in all three galaxies. Although this color correlation cannot be explained by any existing model, it fits very well the far-infrared color of nearby star-forming galaxies.
机译：我们使用60微米，100微米波长的COBE（宇宙背景探索者）/ DIRBE（漫红外背景实验）ZSMA（经减底差的平均目标）图研究了银河系和麦哲伦星系的远红外SED。 ，140微米。我们分析了三个区域：银河纬度垂直线b垂直线<5度的银河平面区域，大麦哲伦星云区域和小麦哲伦星云区域。由于远红外的尘埃光学深度比可见光小得多，因此我们可以在视线中观察到来自具有各种星际辐射场的区域的累积远红外辐射。考虑到这种影响的结果，我们在所有三个星系中发现140-100μm和10060μm强度比之间存在常见的远红外颜色相关性。尽管这种颜色相关性无法用任何现有模型来解释，但它非常适合附近恒星形成星系的远红外颜色。

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