[CII] at 158 mu m as a star formation tracer in late-type galaxies
[CII] at 158 mu m as a star formation tracer in late-type galaxies
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[CII] 158 μ m 作为晚型星系中的恒星形成示踪剂
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
D. Pierini
中科院分区：
文献类型：
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作者：
A. Boselli;G. Gavazzi;J. Lequeux;D. Pierini
我们提出了一种校准大质量恒星形成速率与[CII]亮度关系的方法，该方法基于附近的晚型星系样本，该样本由ISO-LWS观测到，并在Halpha+[NII]线上成像。对于远红外光度（10^8 < L_{FIR} < 10^{10.5} L（太阳单位）），此关系成立。所得的恒星形成率的不确定性约为10倍。这种不确定性部分是由于各个星系中星际介质的不同成分对[CII]发射的贡献混合不同，如附录所述。
We present a calibration of the massive star formation rate vs. [CII] luminosity relation based on a sample of nearby, late-type galaxies observed with ISO-LWS and imaged in the Halpha+[NII] line. The relation holds for far-IR luminosities 10^8 < L_{FIR} < 10^{10.5} L (solar units). The derived star formation rates have an uncertainty of about a factor of 10. Part of this uncertainty is due to the different mix of contributions to the [CII] emission from the different components of the interstellar medium in individual galaxies, as discussed in an appendix.