| Title: |
ARES. III. Unveiling the Two Faces of KELT-7 b with HST WFC3 ; ARES. III. Le dévoilement des deux faces de KELT-7b avec HST/WFC3 |
| Authors: |
Pluriel, William; Whiteford, Niall; Edwards, Billy; Changeat, Quentin; Yip, Kai Hou; Baeyens, Robin; Al-Refaie, Ahmed; Bieger, Michelle Fabienne; Blain, Dorian; Gressier, Amélie; Guilluy, Gloria; Jaziri, Adam Yassin; Kiefer, Flavien; Modirrousta-Galian, Darius; Morvan, Mario; Mugnai, Lorenzo; Poveda, Mathilde; Skaf, Nour; Zingales, Tiziano; Wright, Sam; Charnay, Benjamin; Drossart, Pierre; Leconte, Jérémy; Tsiaras, Angelos; Venot, Olivia; Waldmann, Ingo; Beaulieu, Jean-Philippe |
| Contributors: |
ECLIPSE 2020; Laboratoire d'Astrophysique de Bordeaux Pessac (LAB); Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Bordeaux (UB)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS); Institute for Astronomy Edinburgh (IfA); The University of Edinburgh; Centre for Exoplanet Science; Department of Physics and Astronomy UCL London; University College London UCL (UCL); Instituut voor Sterrenkunde Leuven; Catholic University of Leuven = Katholieke Universiteit Leuven (KU Leuven); College of Engineering, Mathematics and Physical Sciences Exeter (EMPS); University of Exeter; Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics (LESIA); Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris; Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Sciences et Lettres (PSL)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité); Institut d'Astrophysique de Paris (IAP); Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); PLANETO - LATMOS; Laboratoire Atmosphères, Milieux, Observations Spatiales (LATMOS); Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS); Dipartimento di Fisica Torino; Università degli studi di Torino = University of Turin (UNITO); INAF - Osservatorio Astrofisico di Torino (OATo); Istituto Nazionale di Astrofisica Rome (INAF); INAF - Osservatorio Astronomico di Palermo (OAPa); Dipartimento di Fisica e Chimica Palermo (DiFC); Università degli studi di Palermo - University of Palermo (UNIPA); Dipartimento di Fisica Roma La Sapienza; Università degli Studi di Roma "La Sapienza" = Sapienza University Rome (UNIROMA); Laboratoire Interuniversitaire des Systèmes Atmosphériques (LISA (UMR_7583)); Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12)-Centre National de la Recherche Scientifique (CNRS)-Université Paris Cité (UPCité); Maison de la Simulation (MDLS); Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut National de Recherche en Informatique et en Automatique (Inria)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS); School of Physical Sciences Hobart; University of Tasmania Hobart (UTAS) |
| Source: |
ISSN: 0004-6256. |
| Publisher Information: |
CCSD; American Astronomical Society |
| Publication Year: |
2020 |
| Collection: |
Université de Versailles Saint-Quentin-en-Yvelines: HAL-UVSQ |
| Subject Terms: |
[SDU.ASTR.EP]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Earth and Planetary Astrophysics [astro-ph.EP] |
| Description: |
International audience ; We present the analysis of the hot-Jupiter KELT-7 b using transmission and emission spectroscopy from the Hubble Space Telescope (HST), both taken with the Wide Field Camera 3 (WFC3). Our study uncovers a rich transmission spectrum which is consistent with a cloud-free atmosphere and suggests the presence of H2O and H-. In contrast, the extracted emission spectrum does not contain strong absorption features and, although it is not consistent with a simple blackbody, it can be explained by a varying temperature-pressure profile, collision induced absorption (CIA) and H-. KELT-7b had also been studied with other space-based instruments and we explore the effects of introducing these additional datasets. Further observations with Hubble, or the next generation of space-based telescopes, are needed to allow for the optical opacity source in transmission to be confirmed and for molecular features to be disentangled in emission. |
| Document Type: |
article in journal/newspaper |
| Language: |
English |
| Relation: |
info:eu-repo/semantics/altIdentifier/arxiv/2006.14199v2; ARXIV: 2006.14199v2; BIBCODE: 2020AJ.160.112P |
| DOI: |
10.3847/1538-3881/aba000 |
| Availability: |
https://hal.science/hal-02937302; https://hal.science/hal-02937302v1/document; https://hal.science/hal-02937302v1/file/2006.14199v2.pdf; https://doi.org/10.3847/1538-3881/aba000 |
| Rights: |
https://about.hal.science/hal-authorisation-v1/ ; info:eu-repo/semantics/OpenAccess |
| Accession Number: |
edsbas.37448692 |
| Database: |
BASE |