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arXiv 1301.0968astro-ph.EP
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热木星WASP-12 b的重新评估:更新

Re-evaluating Hot Jupiter WASP-12b: An Update

Ian J. M. Crossfield, Travis Barman, Brad M. S. Hansen, Ichi Tanaka, Tadayuki Kodama

摘要:

热木星WASP-12 b是太阳系外最大、最热、研究最多的行星之一。我们重新审视我们最近的分析WASP-12 b的发射光谱的光的近红外光谱测量已被声称支持无论是一个以碳为主或富碳的大气成分。我们发现,这个新的光谱仍然是一致的,与一个无特征的黑体,表明一个近等温光球在行星的白天。因此,对WASP-12 b的掩星测量仍然不足以限制行星的大气成分。

英文摘要:

The hot Jupiter WASP-12b is one of the largest, hottest, and best-studied extrasolar planets. We revisit our recent analysis of WASP-12b's emission spectrum in light of near-infrared spectroscopic measurements which have been claimed to support either a hydride-dominated or carbon-rich atmospheric composition. We show that this new spectrum is still consistent with a featureless blackbody, indicating a nearly isothermal photosphere on the planet's day side. Thus the ensemble of occultation measurements for WASP-12b is still insufficient to constrain the planet's atmospheric composition.

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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