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arXiv 2006.04175astro-ph.EPastro-ph.SR
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热辐射对热致发光材料透射光谱的影响

Effects of Thermal Emission on the Transmission Spectra of Hot Jupiters

Aritra Chakrabarty, Sujan Sengupta

摘要:

一个高度辐射的近距离气体巨星(也称为热木星)的昼侧大气层吸收了大部分入射恒星辐射,这些辐射再次从行星的昼侧和夜侧以红外波长重新发射。在这样一颗行星的凌日事件中,从面向观测者的夜晚一侧重新发射的热辐射对透射的恒星辐射有贡献。我们证明,在红外区域的过境光谱得到显着改变时,这种重新发射的热辐射的行星。我们评估的热辐射的热发射的过境光谱上的影响,通过模拟观测光谱数据与相应的错误,从不同的渠道即将到来的詹姆斯韦伯太空望远镜。我们发现,这些模拟数据的噪声水平的影响是统计上显着的。因此,我们传达了一个重要的信息,即行星的热再发射必须考虑到的过境光谱的反演模型,为更准确地解释观测到的过境光谱的热彗星。

英文摘要:

The atmosphere on the dayside of a highly irradiated close-in gas giant (also known as a hot Jupiter) absorbs a significant part of the incident stellar radiation which again gets re-emitted in the infrared wavelengths both from the day and the night sides of the planet. The re-emitted thermal radiation from the night side facing the observers during the transit event of such a planet contributes to the transmitted stellar radiation. We demonstrate that the transit spectra at the infrared region get altered significantly when such re-emitted thermal radiation of the planet is included. We assess the effects of the thermal emission of the hot Jupiters on the transit spectra by simulating observational spectroscopic data with corresponding errors from the different channels of the upcoming James Webb Space Telescope. We find that the effect is statistically significant with respect to the noise levels of those simulated data. Hence, we convey the important message that the planetary thermal re-emission must be taken into consideration in the retrieval models of transit spectra for hot Jupiters for a more accurate interpretation of the observed transit spectra.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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