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Exoplanet Athmosphere New Emission Transmission Spectra Analysis

Deliverables

Knowledge base

Definition, design and production of a knowledge base for exoplanet atmosphere spectra and host star parameters with 30 exoplanet atmospheres at the beginning for the Beta version and then the ability to handle thousands of entries.

knowledge server

Definition and production of a knowledge displayer that will display the knowledge base content to the end-user by accessing the knowledge base server. The resulting displayer will take the form of a responsive HTML5 website providing a flexible user experience to meet both the scientists and the general public needs.

MOOC on exoplanets

Realisation of a Massive Open Online Course (MOOC) open to citizens that will focus on the science results of the consortium and will be hosted on one of the major MOOC plateforms to be defined (FUN in France, Coursera,...). The scenario of videos will be based on scientific results made during this project and then will be defined accordingly.

Integration Education resources in the knowledge server/base

Our educational resources will be integrated and hosted on our knowledge server/base together with scientific results and propose as a unique Website to scientists and citizens.

VO-enabled

Improvement and development of several user-friendly tools based on Virtual Observatory (VO) protocols. They will include a web-based interface (becoming ultimately a module of the knowledge base) and will provide both data, models and some preliminary results which will feed other work packages.

SPOC on space sciences and exoplanets

Realisation of a Small Private Online Course (SPOC) on space sciences and exoplanets that will target the students in astronomy and astrophysics of Université Paris Saclay. It will be accessible through a university platform and consisting of about 10 educative vidéos.

Risk assessment procedure

Risk assessment procedure

Calibration codes and methods

The data calibration and spectral extraction methods developed in the context of task 1 will be made available first to the consortium, one year after the start of the project. When fully tested and used for task 2, it will be made available to the exoplanet community as a whole via stand-alone code packages and maintained code repositories and as contributed calibration and analysis software to the Spitzer/HST/JWST missions (see WP 6 for dissemination). The theoretical foundations and implementation concepts of the calibrations methods will be fully documented and will be published in peer reviewed journals.

Homogeneous set of JWST ERS simulated data

Delivery of a homogeneous set of JWST ERS simulated data We will simulate the data expected from the transiting exoplanet Early Release Science JWST program. Then the calibration and spectral extraction methods developed in the context of task 1 will be applied to these data. We will calibrate the data in a homogeneous way and extract the spectra of the exoplanet atmospheres, such that an unbiased comparison is possible. The simulated data and the homogeneous set of spectra will be made available to the community through our knowledge serveur and will be published as part of a peer-reviewed paper.

Catalogue/database of host-star public release

Catalogue/database of host-star multi-waveband properties and derived parameters, and user documentation; public release

The retreival framework

The retrieval framework (month 24) The first deliverable is the spectral retrieval framework itself. As the leading analysis software package, much value for the community can be gained by providing the framework as open-source platform. The retrieval technique developed in the context of task 1 will be made available first to the consortium. When tested within task 2 it will be made available to the exoplanet community as a whole via a dedicated website interface and stand-alone code packages hosted on public code repositories (e.g. GitHub).

Best rocky planets for JWST

For rocky planets around cool stars, climate and chemistry models, with a view to identify best possible targets for JWST observations (input to WP2), in particular those within the habitable zone.

Scientific paper

Scientific paper submitted to a peer-reviewed journal; will describe the database/catalogue, present statistical properties of the sample, and example usage of the spectral models.

Current Catalogs

A census and analysis of current exoplanet online catalogues and virtual observatories, their format and state-of-art online resources in order to adapt and define our knowledge base format as well as automatic query to these catalogues into our base.

SED tools

An update of VOSA, a web-based, VO-compliant tool for Spectral Energy Distribution fitting.

Set of homogeneously derived retrieval parameters

Set of homogeneously derived retrieval parameters (month 36) Using our self-consistent, state-of-the-art spectral retrieval, we will produce a catalogue of homogeneously derived atmospheric models for all available planets. This set of retrieval parameters will be made available as part of the data catalogue for all sources in the project. We plan to provide the final individual models as well as all statistical parameter distributions and intermediate model products on a dedicated archive. All stages of the analysis, from data to final molecular abundances will be available to the community. In conjunction with the publically available, open-source software used to generate the catalogue, this will become a highly significant resource to the exoplanet community. Additionally, we note the following internal deliverable: Provision of atmospheric retrieval results to work package 5 (months 26-36) At the end of the retrieval development stage (month 24), data provided by work-package 2 will be analysed by the retrieval framework and atmospheric parameters (such as molecular abundances, cloud parameters, atmospheric temperature-pressure profiles) will be provided for work-package 5 interpretation. This will be done on a target by target basis, i.e. we are not waiting for the completion of the full retrieval catalogue (D3.2) but will provide analysis results to work-package 5 as soon as they become available. Here we will try to prioritise targets deemed more complicated in interpretation at the beginning as these might take longer for interpretation by WP5 than more generic targets.

Corona-to-chromosphere spectral models public release

Corona-to-chromosphere spectral models (as tables), and user documentation; public release.

Homogeneous data catalog of Spitzer andHST data

Delivery if a homogeneous data catalog of Spitzer and HST data. The data calibration and spectral extraction methods developed in the context of task 1 will be applied to all suitable archive Spitzer and HST observations of transiting exoplanets. We will calibrate the data in a homogeneous way and extract the spectra of the exoplanet atmospheres, such that an unbiased comparison is possible. This homogeneous analysis will be published in a peer reviewed paper and the data set of calibrated spectra and light-curves will be made available as a catalog through CDS and ViZier services and as enhanced data products to the Spitzer and HST data archives provided by NASA and ESA (see WP 5 for dissemination). This will guarantee long term public access for the wider scientific community to the homogeneous data catalog of Spitzer and HST data.

Parameters

For the planets expected to be analysed in WP2: prediction of the evolution of the orbital state and consequences for planetary climates. Estimate of the total energy budget: insolation and tidal heating. Estimate of the atmospheric mass loss from the planet. Range of atmospheric/surface temperature of planets from Global Climate Models. Tidal dissipation coefficients in the host star as a function of their mass, age, rotation. Tidal dissipation coefficients in planets and their different layers (rocky core, atmosphere).

Catalog Gaseous planets

A catalogue of gaseous exoplanets with cloud characterisation, molecular abundances, elemental composition, thermal structure as retrieved in WP3 and interpretation of whether the atmosphere is in chemical equilibrium or not. Correlations between the chemistry/clouds and key parameters such as the planetary temperature and the stellar type will be identified and analysed. Correlations between the planetary elemental composition and the stellar metallicity will be identified and analysed with planetary formation models. Tentative rotational state of observed planets (synchronized vs. non-synchronized) using constraints obtained on atmospheric temperature distribution in observed targets. Correlations between the planetary thermal structure, orbital parameters, interaction with the star will be identified and analysed with atmospheric dynamics and stellar models (24-36 months).

3D modelling

Estimate of necessity of 3D (versus current 1D) chemical and dynamical atmospheric models in the interpretation of transit, eclipse and phase-curves observations, the outcome will be used by WP3.

Catalog Rocky planets

A catalogue of rocky exoplanets with main atmospheric component as retrieved in WP3 and interpretation of whether the atmosphere is primary (hydrogen-rich) or secondary (hydrogen-poor) and analysis in terms of planet formation and evolution (24-36 months).

Magnetic field

Using scaling law deduced from published stellar rotation & dynamo simulations, will provide (1-12 months) for star for which magnetic observations are absent or X-ray proxy from WP4.3 not yet available, rotation and magnetic field (field amplitude, possibly dominant topology) proxy for host star. Use the guessed B field to compute 1-D wind model (1-12 months) for main target list and at t=18 months using WP4.3 input into multi-D simulations computed realistic host star wind. Output: realistic wind solution. From wind simulations, will determine stellar wind characteristics such as Alfvén radius, turbulent ram pressure, magnetic pressure and particles density at planetary orbits and from pressure balance between wind and planet’s magnetosphere will assess minimal (induced or intrinsic) planetary magnetosphere size. A first release of output/parameters in year 0-1 is planned and then a more complete release at the end of the project with more accurate evaluation of the parameters.

Virtual tour

Realisation of a Virtual Reality application on exoplanets for smartphones and low-cost VR headset in order to offer a VR experience to citizens with very limited and low-cost devices. It will feature the location of exoplanets of interest and explain how to retrieve their physical characteristics.

Searching for OpenAIRE data...

Publications

TRAP: a temporal systematics model for improved direct detection of exoplanets at small angular separations

Author(s): M. Samland, J. Bouwman, D. W. Hogg, W. Brandner, T. Henning, M. Janson
Published in: Astronomy & Astrophysics, 646, 2021, Page(s) A24, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201937308

Optical Transmission Spectra of Hot Jupiters: Effects of Scattering

Author(s): Sujan Sengupta, Aritra Chakrabarty, Giovanna Tinetti
Published in: The Astrophysical Journal, 889/2, 2020, Page(s) 181, ISSN 1538-4357
Publisher: IOPSciences
DOI: 10.3847/1538-4357/ab6592

PyLightcurve-torch: a transit modeling package for deep learning applications in PyTorch

Author(s): Mario Morvan, Angelos Tsiaras, Nikolaos Nikolaou, Ingo P. Waldmann
Published in: Publications of the Astronomical Society of the Pacific, 133/1021, 2021, Page(s) 034505, ISSN 0004-6280
Publisher: University of Chicago Press
DOI: 10.1088/1538-3873/abe6e8

ExoMol molecular line lists – XXXVII. Spectra of acetylene

Author(s): Katy L Chubb, Jonathan Tennyson, Sergei N Yurchenko
Published in: Monthly Notices of the Royal Astronomical Society, 493/2, 2020, Page(s) 1531-1545, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staa229

Unveiling the power spectra of δ Scuti stars with TESS

Author(s): S. Barceló Forteza, A. Moya, D. Barrado, E. Solano, S. Martín-Ruiz, J. C. Suárez, A. García Hernández
Published in: Astronomy & Astrophysics, 638, 2020, Page(s) A59, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201937262

Impact of Planetary Mass Uncertainties on Exoplanet Atmospheric Retrievals

Author(s): Q. Changeat, L. Keyte, I. P. Waldmann, G. Tinetti
Published in: The Astrophysical Journal, 896/2, 2020, Page(s) 107, ISSN 1538-4357
Publisher: IOPSciences
DOI: 10.3847/1538-4357/ab8f8b

From stellar coronae to gyrochronology: A theoretical and observational exploration

Author(s): J. Ahuir, A. S. Brun, A. Strugarek
Published in: Astronomy & Astrophysics, 635, 2020, Page(s) A170, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201936974

Theoretical Reflectance Spectra of Earth-like Planets through Their Evolutions: Impact of Clouds on the Detectability of Oxygen, Water, and Methane with Future Direct Imaging Missions

Author(s): Yui Kawashima, Sarah Rugheimer
Published in: The Astronomical Journal, 157/5, 2019, Page(s) 213, ISSN 1538-3881
Publisher: IOP Publishing
DOI: 10.3847/1538-3881/ab14e3

Aluminium oxide in the atmosphere of hot Jupiter WASP-43b

Author(s): Katy L. Chubb, Michiel Min, Yui Kawashima, Christiane Helling, Ingo Waldmann
Published in: Astronomy & Astrophysics, 639, 2020, Page(s) A3, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201937267

Indications for very high metallicity and absence of methane in the eccentric exo-Saturn WASP-117b

Author(s): Ludmila Carone, Paul Mollière, Yifan Zhou, Jeroen Bouwman, Fei Yan, Robin Baeyens, Dániel Apai, Nestor Espinoza, Benjamin V. Rackham, Andrés Jordán, Daniel Angerhausen, Leen Decin, Monika Lendl, Olivia Venot, Thomas Henning
Published in: Astronomy & Astrophysics, 646, 2021, Page(s) A168, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202038620

Super-Rayleigh Slopes in Transmission Spectra of Exoplanets Generated by Photochemical Haze

Author(s): Kazumasa Ohno, Yui Kawashima
Published in: The Astrophysical Journal, 895/2, 2020, Page(s) L47, ISSN 2041-8213
Publisher: IOPScience
DOI: 10.3847/2041-8213/ab93d7

The ExoMolOP database: Cross sections and k -tables for molecules of interest in high-temperature exoplanet atmospheres

Author(s): Katy L. Chubb, Marco Rocchetto, Sergei N. Yurchenko, Michiel Min, Ingo Waldmann, Joanna K. Barstow, Paul Mollière, Ahmed F. Al-Refaie, Mark W. Phillips, Jonathan Tennyson
Published in: Astronomy & Astrophysics, 646, 2021, Page(s) A21, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202038350

The ARCiS framework for exoplanet atmospheres

Author(s): Michiel Min, Chris W. Ormel, Katy Chubb, Christiane Helling, Yui Kawashima
Published in: Astronomy & Astrophysics, 642, 2020, Page(s) A28, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201937377

Detrending Exoplanetary Transit Light Curves with Long Short-term Memory Networks

Author(s): Mario Morvan, Nikolaos Nikolaou, Angelos Tsiaras, Ingo P. Waldmann
Published in: The Astronomical Journal, 159/3, 2020, Page(s) 109, ISSN 1538-3881
Publisher: IOPSciences
DOI: 10.3847/1538-3881/ab6aa7

Global Chemistry and Thermal Structure Models for the Hot Jupiter WASP-43b and Predictions for JWST

Author(s): Olivia Venot, Vivien Parmentier, Jasmina Blecic, Patricio E. Cubillos, Ingo P. Waldmann, Quentin Changeat, Julianne I. Moses, Pascal Tremblin, Nicolas Crouzet, Peter Gao, Diana Powell, Pierre-Olivier Lagage, Ian Dobbs-Dixon, Maria E. Steinrueck, Laura Kreidberg, Natalie Batalha, Jacob L. Bean, Kevin B. Stevenson, Sarah Casewell, Ludmila Carone
Published in: The Astrophysical Journal, 890/2, 2020, Page(s) 176, ISSN 1538-4357
Publisher: IOPSciences
DOI: 10.3847/1538-4357/ab6a94

Water vapour in the atmosphere of the habitable-zone eight-Earth-mass planet K2-18 b

Author(s): Angelos Tsiaras, Ingo P. Waldmann, Giovanna Tinetti, Jonathan Tennyson, Sergey N. Yurchenko
Published in: Nature Astronomy, 3/12, 2019, Page(s) 1086-1091, ISSN 1476-4687
Publisher: Springer
DOI: 10.1038/s41550-019-0878-9

A comparison of exoplanet spectroscopic retrieval tools

Author(s): Joanna K Barstow, Quentin Changeat, Ryan Garland, Michael R Line, Marco Rocchetto, Ingo P Waldmann
Published in: Monthly Notices of the Royal Astronomical Society, 493/4, 2020, Page(s) 4884-4909, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staa548

A weak spectral signature of water vapour in the atmosphere of HD 179949 b at high spectral resolution in the L band

Author(s): Rebecca K Webb, Matteo Brogi, Siddharth Gandhi, Michael R Line, Jayne L Birkby, Katy L Chubb, Ignas A G Snellen, Sergey N Yurchenko
Published in: Monthly Notices of the Royal Astronomical Society, 494/1, 2020, Page(s) 108-119, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staa715

The ExoTETHyS Package: Tools for Exoplanetary Transits around Host Stars

Author(s): Angelos Tsiaras; Christophe Cossou; G. Morello; P. O. Lagage; Marine Martin-Lagarde; A. Claret
Published in: issn: 1538-3881, 2, 2019, ISSN 2041-8213
Publisher: IopScience
DOI: 10.3847/1538-3881/ab63dc

Hot Super-Earths with Hydrogen Atmospheres: A Model Explaining Their Paradoxical Existence

Author(s): Darius Modirrousta-Galian, Daniele Locci, Giovanna Tinetti, Giuseppina Micela
Published in: The Astrophysical Journal, 888/2, 2020, Page(s) 87, ISSN 1538-4357
Publisher: IOPSciences
DOI: 10.3847/1538-4357/ab616b

ExoGAN: Retrieving Exoplanetary Atmospheres Using Deep Convolutional Generative Adversarial Networks

Author(s): Zingales, T.; Waldmann, I. P.
Published in: Astronomical Journal , 156 (6) , Article 268. (2018), 1, 2018, ISSN 1538-3881
Publisher: American Astronomical Society

ARCiS framework for exoplanet atmospheres

Author(s): Chris W. Ormel, Michiel Min
Published in: Astronomy & Astrophysics, 622, 2019, Page(s) A121, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201833678

An Independent Analysis of the Spitzer /IRAC Phase Curves of WASP43 b

Author(s): G. Morello, C. Danielski, D. Dickens, P. Tremblin, P.-O. Lagage
Published in: The Astronomical Journal, 157/5, 2019, Page(s) 205, ISSN 1538-3881
Publisher: IOP Publishing
DOI: 10.3847/1538-3881/ab14e2

Phase-curve Pollution of Exoplanet Transit Depths

Author(s): Marine Martin-Lagarde, Giuseppe Morello, Pierre-Olivier Lagage, René Gastaud, Christophe Cossou
Published in: The Astronomical Journal, 160/5, 2020, Page(s) 197, ISSN 1538-3881
Publisher: IOPScience
DOI: 10.3847/1538-3881/abac09

Effects of a fully 3D atmospheric structure on exoplanet transmission spectra: retrieval biases due to day–night temperature gradients

Author(s): A. Caldas, J. Leconte, F. Selsis, I. P. Waldmann, P. Bordé, M. Rocchetto, B. Charnay
Published in: Astronomy & Astrophysics, 623, 2019, Page(s) A161, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201834384

A Swift view of X-ray and UV radiation in the planet-forming T Tauri system PDS 70

Author(s): Simon R G Joyce, John P Pye, Jonathan D Nichols, Kim L Page, Richard Alexander, Manuel Güdel, Yanina Metodieva
Published in: Monthly Notices of the Royal Astronomical Society: Letters, 491/1, 2020, Page(s) L56-L60, ISSN 1745-3933
Publisher: Blackwell Publishing
DOI: 10.1093/mnrasl/slz169

Mineral cloud and hydrocarbon haze particles in the atmosphere of the hot Jupiter JWST target WASP-43b

Author(s): Ch. Helling, Y. Kawashima, V. Graham, D. Samra, K. L. Chubb, M. Min, L. B. F. M. Waters, V. Parmentier
Published in: Astronomy & Astrophysics, 641, 2020, Page(s) A178, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/202037633

Neutral Metals in the Atmosphere of HD 149026b

Author(s): Masato Ishizuka, Hajime Kawahara, Stevanus K. Nugroho, Yui Kawashima, Teruyuki Hirano, Motohide Tamura
Published in: The Astronomical Journal, 161/4, 2021, Page(s) 153, ISSN 0004-6256
Publisher: American Astronomical Society
DOI: 10.3847/1538-3881/abdb25

Simplified 3D GCM modelling of the irradiated brown dwarf WD 0137−349B

Author(s): Graham K H Lee, Sarah L Casewell, Katy L Chubb, Mark Hammond, Xianyu Tan, Shang-Min Tsai, Raymond T Pierrehumbert
Published in: Monthly Notices of the Royal Astronomical Society, 496/4, 2020, Page(s) 4674-4687, ISSN 0035-8711
Publisher: Blackwell Publishing Inc.
DOI: 10.1093/mnras/staa1882

Detectable Molecular Features above Hydrocarbon Haze via Transmission Spectroscopy with JWST : Case Studies of GJ 1214b-, GJ 436b-, HD 97658b-, and Kepler-51b-like Planets

Author(s): Yui Kawashima, Renyu Hu, Masahiro Ikoma
Published in: The Astrophysical Journal, 876/1, 2019, Page(s) L5, ISSN 2041-8213
Publisher: IOP Publishing
DOI: 10.3847/2041-8213/ab16f6

Implications of three-dimensional chemical transport in hot Jupiter atmospheres: Results from a consistently coupled chemistry-radiation-hydrodynamics model

Author(s): Benjamin Drummond, Eric Hébrard, Nathan J. Mayne, Olivia Venot, Robert J. Ridgway, Quentin Changeat, Shang-Min Tsai, James Manners, Pascal Tremblin, Nathan Luke Abraham, David Sing, Krisztian Kohary
Published in: Astronomy & Astrophysics, 636, 2020, Page(s) A68, ISSN 0004-6361
Publisher: Springer Verlag
DOI: 10.1051/0004-6361/201937153

Exoplanet host-star properties: the active environment of exoplanets

Author(s): John P. Pye, David Barrado, Rafael A. Garcıa, Manuel Gudel, Jonathan Nichols, Simon Joyce, Nuria Huelamo, Marıa Morales-Calder´on, Mauro Lopez, Enrique Solano, Pierre-Olivier Lagage, Colin P. Johnstone, Allan Sacha Brun, Antoine Strugarek, Jeremy Ahuir
Published in: 2019
Publisher: International Astronomical Union; Cambridge University Press

Tidal heating in multilayer planets: Application to the TRAPPIST-1 system

Author(s): Breton, Sylvain; Bolmont, Emeline; Tobie, Gabriel; Mathis, Stéphane
Published in: 5, 2018
Publisher: SF2A

Could star-planet magnetic interactions lead to planet migration and influence stellar rotation?

Author(s): Jérémy Ahuir, Antoine Strugarek, Allan Sacha Brun, Stéphane Mathis, Emeline Bolmont, Mansour Benbakoura, Victor Réville, Christophe Le Poncin-Lafitte
Published in: Proceedings of the International Astronomical Union, 15/S354, 2019, Page(s) 295-299, ISSN 1743-9213
Publisher: Cambridge University Press
DOI: 10.1017/s1743921319009992