论文标题
哈勃私人计划:热木星HAT-P-41B的发射光谱
The Hubble PanCET program: Emission spectrum of hot Jupiter HAT-P-41b
论文作者
论文摘要
我们提供了最完整的发射光谱,用于将Hubble Panchromatic Panchromatic比较系外行星库(Pancet)计划与档案刺激性Eclipse观察的新型HST WFC/G141频谱结合新的HST WFC/G141频谱。我们发现了一个接近黑体的发射光谱,最好与等温温度压力(TP)曲线拟合,该谱与零键反照率的零键反照率相吻合。不转移的TP曲线与过境光谱中NUV/光吸收器的未检测一致。我们找不到任何证据表明大量的h $^ - $不透明度或金属丰富的气氛。 HAT-P-41B是位于热和超热木星之间的过渡参数空间,未来的JWST观测值将有助于我们更好地限制热结构和化学组成。
We present the most complete emission spectrum for inflated hot Jupiter HAT-P-41b combining new HST WFC/G141 spectrum from the Hubble Panchromatic Comparative Exoplanet Treasury (PanCET) program with archival Spitzer eclipse observations. We found a near blackbody-like emission spectrum which is best fitted with an isothermal temperature-pressure (TP) profile that agrees well with the dayside heat redistribution scenario assuming zero Bond albedo. The non-inverted TP profile is consistent with the non-detection of NUV/optical absorbers in the transit spectra. We do not find any evidence for significant H$^-$ opacity nor a metal-rich atmosphere. HAT-P-41b is an ideal target that sits in the transitioning parameter space between hot and ultra-hot Jupiters, and future JWST observations will help us to better constrain the thermal structure and chemical composition.