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首页> 外文期刊>PASJ: Publications of the Astronomical Society of Japan >AKARI/IRC broadband mid-infrared data as an indicator of the star-formation rate
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AKARI/IRC broadband mid-infrared data as an indicator of the star-formation rate

机译：AKARI / IRC宽带中红外数据可作为恒星形成率的指标

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摘要

AKARI/Infrared Camera (IRC) Point Source Catalog provides a large amount of flux data at S9W (9μ) and L18W (18μ) bands. With the goal of constructing Star-Formation Rate (SFR) calculations using IRC data, we analyzed an IR selected GALEX-SDSS-2MASS-AKARI(IRC/Far-Infrared Surveyor) sample of 153 nearby galaxies. The far-infrared fluxes were obtained from AKARI diffuse maps to correct an underestimation for extended sources raised by the point-spread function photometry. SFRs of these galaxies were derived by the spectral energy distribution fitting program CIGALE. In spite of complicated features contained in these bands, both the S9W and L18W emission correlate with the SFR of galaxies. The SFR calibrations using S9W and L18W are presented for the first time. These calibrations agree well with previous works based on Spitzer data within the scatters, and should be applicable to dust-rich galaxies.
机译：AKARI /红外摄像机（IRC）点源目录在S9W（9μ）和L18W（18μ）波段提供大量通量数据。为了使用IRC数据构建恒星形成率（SFR）计算，我们分析了IR选择的153个附近星系的GALEX-SDSS-2MASS-AKARI（IRC /远红外测量仪）样本。从AKARI漫射图获得了远红外通量，以纠正对点扩散函数光度法引起的扩展光源的低估。这些星系的SFR由光谱能量分布拟合程序CIGALE导出。尽管这些波段中包含复杂的特征，但S9W和L18W的发射都与星系的SFR相关。首次展示了使用S9W和L18W的SFR校准。这些校准与基于散射中Spitzer数据的先前工作非常吻合，并且应适用于粉尘丰富的星系。

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