FIR通量对YSO约束性能的影响
Effect of FIR Fluxes on Constraining Properties of YSOs
摘要：
处于早期演化阶段的年轻恒星天体（YSO）非常嵌入，因此它们在远红外（FIR）和亚毫米（Submm）等长波长处发射大部分能量。因此，FIR观测数据是非常重要的，这些嵌入的YSO的演化阶段的准确分类，并更好地约束其物理参数的尘埃连续模拟。我们选择了28个YSO，这是在AKARI远红外探测器（FIS）检测到的，从斯皮策c2d遗留YSO目录测试FIR通量的影响，其演化阶段的分类和约束的信封属性，内部光度，和紫外线强度的星际辐射场（ISRF）。根据我们的测试，人们可以错误分类的进化阶段的YSO，特别是非常嵌入的，如果FIR通量不包括在内。此外，如果没有FIR观测数据，YSO的加热总量可能会被低估。
英文摘要：
Young Stellar Objects (YSOs) in the early evolutionary stages are very embedded, and thus they emit most of their energy at long wavelengths such as far-infrared (FIR) and submillimeter (Submm). Therefore, the FIR observational data are very important to classify the accurate evolutionary stages of these embedded YSOs, and to better constrain their physical parameters in the dust continuum modeling. We selected 28 YSOs, which were detected in the AKARI Far-Infrared Surveyor (FIS), from the Spitzer c2d legacy YSO catalogs to test the effect of FIR fluxes on the classification of their evolutionary stages and on the constraining of envelope properties, internal luminosity, and UV strength of the Interstellar Radiation Field (ISRF). According to our test, one can mis-classify the evolutionary stages of YSOs, especially the very embedded ones if the FIR fluxes are not included. In addition, the total amount of heating of YSOs can be underestimated without the FIR observational data.
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