The Hubble PanCET program: Emission spectrum of hot Jupiter HAT-P-41b

Guangwei Fu; David K. Sing; Drake Deming; Kyle Sheppard; H. R. Wakeford; Thomas Mikal-Evans; Munazza K. Alam; Leonardo A. Dos Santos; Mercedes López-Morales

doi:10.3847/1538-3881/ac58fc

The Hubble PanCET program: Emission spectrum of hot Jupiter HAT-P-41b

Earth and Planetary Astrophysics 2022-04-06 v1

Authors: Guangwei Fu , David K. Sing , Drake Deming , Kyle Sheppard , H. R. Wakeford , Thomas Mikal-Evans , Munazza K. Alam , Leonardo A. Dos Santos , Mercedes López-Morales

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

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.

Keywords

hot Jupiter emission spectrum HAT-P-41b HST WFC/G141 Spitzer temperature-pressure profile JWST

Cite

@article{arxiv.2202.12314,
  title  = {The Hubble PanCET program: Emission spectrum of hot Jupiter HAT-P-41b},
  author = {Guangwei Fu and David K. Sing and Drake Deming and Kyle Sheppard and H. R. Wakeford and Thomas Mikal-Evans and Munazza K. Alam and Leonardo A. Dos Santos and Mercedes López-Morales},
  journal= {arXiv preprint arXiv:2202.12314},
  year   = {2022}
}

Comments

Accepted for publication in AJ

The Hubble PanCET program: Emission spectrum of hot Jupiter HAT-P-41b

Abstract

Keywords

Cite

Comments

Related papers