局部FIR星系颜色-亮度分布：BLAST和Herschel/SPIRE亚毫米巡天的参考
The local FIR Galaxy Colour-Luminosity distribution: A reference for BLAST, and Herschel/SPIRE sub-mm surveys
摘要：
我们测量本地星系远红外（FIR）60至100微米的颜色光度分布使用全天IRAS调查。这一分布是下一代远红外-亚毫米测量的重要参考，这些测量已经并将在250- 500微米进行银河系外深测量。由于尘埃遮蔽的恒星形成活动达到顶峰，导致现在认为在z~2.5附近的亚毫米星系中出现了巨大的椭圆星系，这些新的FIR-亚毫米巡天将直接在静止帧FIR波长处对这些遥远天体的SED进行采样，这些波长与IRAS观测到的当地星系的波长相似。我们已经注意到在我们的IRAS 60微米选择的样品中校正温度偏差和演化效应。我们验证我们的颜色光度分布是一致的测量本地FIR光度函数，然后将其应用到更高的红移宇宙。我们将我们的色-光度相关性与最近对亚毫米星系的尘埃-温度测量结果进行了比较，并找到了（1+z）形式的纯光度演化的证据^[3]。这种分布将是有益的发展演变模型的BLAST和SPIRE调查，因为它提供了一个统计分布的星系作为光度的函数的静止框架尘埃温度。
英文摘要：
We measure the local galaxy far-infrared (FIR) 60-to-100 um colour-luminosity distribution using an all-sky IRAS survey. This distribution is an important reference for the next generation of FIR--submillimetre surveys that have and will conduct deep extra-galactic surveys at 250--500 um. With the peak in dust-obscured star-forming activity leading to present-day giant ellipticals now believed to occur in sub-mm galaxies near z~2.5, these new FIR--submillimetre surveys will directly sample the SEDs of these distant objects at rest-frame FIR wavelengths similar to those at which local galaxies were observed by IRAS. We have taken care to correct for temperature bias and evolution effects in our IRAS 60 um-selected sample. We verify that our colour-luminosity distribution is consistent with measurements of the local FIR luminosity function, before applying it to the higher-redshift Universe. We compare our colour-luminosity correlation with recent dust-temperature measurements of sub-mm galaxies and find evidence for pure luminosity evolution of the form (1+z)^3. This distribution will be useful for the development of evolutionary models for BLAST and SPIRE surveys as it provides a statistical distribution of rest-frame dust temperatures for galaxies as a function of luminosity.
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