论文标题
带有[WR]和$ WELS $ Central Stars行星星云的红外特性
Infrared properties of Planetary Nebulae with [WR] and $wels$ central stars
论文作者
论文摘要
我们报告了迄今为止已知的WR类型和$ WELS $中心星星的IR属性，并将其与pne样品与H-H-H-HICH CENTRAL Stars的IR属性进行了比较。我们使用来自档案的近，中和远出光度数据来得出PNE的IR特性。我们已经使用$ 2MASS $，$ IRAS $，$ WISE $和$ AKARI $ bands的尺寸构建了IR颜色pne图。 [WR]与其他两组相比，pne具有较大的近灰尘成分近IR发射，并且还显示出更强的12 $μ$ M发射的趋势。所有PNE的凉爽AGB灰尘特性都相似。我们得出了这三组的灰尘颜色温度，灰尘质量，灰尘与气体质量比，IR亮度和IR的PEN过量。与第三组相比，[WR] pne和$ wels $ -pne的平均尘埃值往往具有更大的灰尘质量值。发现三组PNE的平均灰尘与气体比率相似。虽然尘埃温度和IR光度与三组PNE的年龄有很强的相关性，但随着PNE的发展，尘埃质量，尘埃与气体质量比和IR多余的相关性是不变的。 [WR] PNE和$ WELS $ -PNE显示激发类的分布非常相似，并且与银河纬度的分布相似。
We report the IR properties of planetary nebulae with WR type and $wels$ central stars known to date and compare them with the IR properties of a sample of PNe with H-rich central stars. We use near-, mid- and far-IR photometric data from archives to derive the IR properties of PNe. We have constructed IR colour-colour diagrams of PNe using measurements from $2MASS$, $IRAS$, $WISE$ and $Akari$ bands. [WR] PNe have a larger near-IR emission from the hot dust component and also show a tendency for stronger 12$μ$m emission as compared to the other two groups. Cool AGB dust properties of all PNe are found to be similar. We derived the dust colour temperatures, dust masses, dust-to-gas mass ratios, IR luminosities and IR excess of PNe for these three groups. [WR] PNe and $wels$-PNe tend to have larger mean values for dust mass when compared to the third group. The average dust-to-gas mass ratio is found to be similar for the three groups of PNe. While there is a strong correlation of dust temperature and IR luminosity with the age for the three groups of PNe, the dust mass, dust-to-gas mass ratios and IR excess are found to be non-varying as the PNe evolve. [WR] PNe and $wels$-PNe show very similar distribution of excitation classes and also show similar distribution with Galactic latitude.
