论文标题
热木星的颜色彩色和颜色量表图
Colour-colour and colour-magnitude diagrams for Hot Jupiters
论文作者
论文摘要
我们对近红外（$ JHK \！s $）乐队和Spitzer 3.6 $ $ m $ m和4.5 $ $ m $ m的频段使用基于地面和太空的日食测量值来构建热千线的颜色色和颜色尺度图。我们将结果与以前对替代物体的观察结果进行了比较，发现热木星在校正其膨胀的半径时，位于黑色身体线附近，在颜色幅度图的同一区域中与棕色矮人相同的区域，包括先前被认为是exoplanet Abalogs的低重力dwarfs。我们使用理论发射光谱来研究不同金属性，C/O比和温度对IR颜色的影响。通常，我们发现，尽管C/O比和金属性的差异确实对应于这些图表上的不同位置，但测量误差太大而无法使用此方法，无法对单个对象的组成进行强大的约束。但是，作为一类热木星，围绕着太阳金属性和C/O比的预期位置。
We use ground-based and space-based eclipse measurements for the near-infrared ($JHK\!s$) bands and Spitzer 3.6 $μ$m and 4.5 $μ$m bands to construct colour-colour and colour-magnitude diagrams for hot Jupiters. We compare the results with previous observations of substellar objects and find that hot Jupiters, when corrected for their inflated radii, lie near the black body line and in the same region of the colour magnitude diagrams as brown dwarfs, including low gravity dwarfs that have been previously suggested as exoplanet analogs. We use theoretical emission spectra to investigate the effects of different metallicity, C/O ratios and temperatures on the IR colours. In general we find that while differences in C/O ratio and metallicity do correspond to different locations on these diagrams, the measurement errors are too large to use this method to put strong constraints on the composition of individual objects. However, as a class hot Jupiters cluster around the location expected for solar metallicity and C/O ratio.
