The JWST Early-release Science Program for Direct Observations of Exoplanetary Systems II: A 1 to 20 μm Spectrum of the Planetary-mass Companion VHS 1256–1257 b - Archive ouverte HAL
Article Dans Une Revue The Astrophysical journal letters Année : 2023

The JWST Early-release Science Program for Direct Observations of Exoplanetary Systems II: A 1 to 20 μm Spectrum of the Planetary-mass Companion VHS 1256–1257 b

Brittany E Miles (1) , Beth A Biller (2) , Polychronis Patapis (3) , Kadin Worthen (4) , Emily Rickman (5) , Kielan K W Hoch (6) , Andrew Skemer , Marshall D Perrin (5) , Niall Whiteford , Christine H Chen (5) , B Sargent , Sagnick Mukherjee , Caroline V Morley , Sarah E Moran , Mickael Bonnefoy (7) , Simon Petrus , Aarynn L Carter , Elodie Choquet (8) , Sasha Hinkley , Kimberly Ward-Duong , Jarron M Leisenring , Maxwell A Millar-Blanchaer , Laurent Pueyo (5) , Shrishmoy Ray , Steph Sallum , Karl R Stapelfeldt , Jordan M Stone , Jason J Wang , Olivier Absil (9) , William O Balmer , Anthony Boccaletti , Mariangela Bonavita , Mark Booth , Brendan P Bowler , Gael Chauvin (10) , Valentin Christiaens , Thayne Currie , Camilla Danielski , Jonathan J Fortney , Julien H Girard (5) , Carol A Grady , Alexandra Z Greenbaum , Thomas Henning , Dean C Hines (5) , Markus Janson , Paul Kalas , Jens Kammerer , Grant M Kennedy , Matthew A Kenworthy , Pierre Kervella (11) , Pierre-Olivier Lagage (12) , Ben W P Lew , Michael C Liu , Bruce Macintosh , Sebastian Marino , Mark S Marley , Christian Marois , Elisabeth C Matthews , Brenda C Matthews , Dimitri Mawet , Michael W Mcelwain , Stanimir Metchev , Michael R Meyer , Paul Molliere , Eric Pantin (13) , Andreas Quirrenbach , Isabel Rebollido , Bin B Ren (7) , Glenn Schneider , Malavika Vasist , Mark C Wyatt , Yifan Zhou , Zackery W Briesemeister , Marta L Bryan , Per Calissendorff , Faustine Cantalloube (8) , Gabriele Cugno , Matthew de Furio , Trent J Dupuy , Samuel M Factor , Jacqueline K Faherty , Michael P Fitzgerald , Kyle Franson , Eileen C Gonzales , Callie E Hood , Alex R Howe , Adam L Kraus , Masayuki Kuzuhara , Anne-Marie Lagrange (11) , Kellen Lawson , Cecilia Lazzoni , Pengyu Liu , Jorge Llop-Sayson , James P Lloyd , Raquel A Martinez , Johan Mazoyer (11) , Sascha P Quanz , Jea Adams Redai , Matthias Samland , Joshua E Schlieder , Motohide Tamura , Xianyu Tan , Taichi Uyama , Arthur Vigan (8) , Johanna M Vos , Kevin Wagner , Schuyler G Wolff , Marie Ygouf , Xi Zhang , Keming Zhang , Zhoujian Zhang
Brittany E Miles
University of California [Santa Cruz]
Beth A Biller
University of Edinburgh
Polychronis Patapis
Departement Erdwissenschaften [ETH Zürich]
Kadin Worthen
Johns Hopkins University
Emily Rickman
Space Telescope Science Institute
Kielan K W Hoch
University of California [San Diego]
Andrew Skemer
Marshall D Perrin
Space Telescope Science Institute
Niall Whiteford
Christine H Chen
Space Telescope Science Institute
B Sargent
Sagnick Mukherjee
Caroline V Morley
Sarah E Moran
Mickael Bonnefoy
Institut de Planétologie et d'Astrophysique de Grenoble
Simon Petrus
Aarynn L Carter
Elodie Choquet
Laboratoire d'Astrophysique de Marseille
CV
Sasha Hinkley
Kimberly Ward-Duong
Jarron M Leisenring
Maxwell A Millar-Blanchaer
Laurent Pueyo
  • Fonction : Auteur
Space Telescope Science Institute
Shrishmoy Ray
Steph Sallum
Karl R Stapelfeldt
Jordan M Stone
Jason J Wang
Olivier Absil
Université de Liège
William O Balmer
Anthony Boccaletti
CV
Mariangela Bonavita
Mark Booth
Brendan P Bowler
Gael Chauvin
Observatoire de la Côte d'Azur
CV
Valentin Christiaens
Thayne Currie
Camilla Danielski
Jonathan J Fortney
Julien H Girard
Space Telescope Science Institute
Carol A Grady
  • Fonction : Auteur
Alexandra Z Greenbaum
Thomas Henning
Dean C Hines
Space Telescope Science Institute
Markus Janson
Paul Kalas
Jens Kammerer
Grant M Kennedy
Matthew A Kenworthy
Pierre Kervella
Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics
CV
Pierre-Olivier Lagage
  • Fonction : Auteur
Astrophysique Interprétation Modélisation
Ben W P Lew
Michael C Liu
Bruce Macintosh
Sebastian Marino
Mark S Marley
Christian Marois
Elisabeth C Matthews
Brenda C Matthews
Dimitri Mawet
Michael W Mcelwain
Stanimir Metchev
Michael R Meyer
Paul Molliere
Eric Pantin
Institut de Recherches sur les lois Fondamentales de l'Univers
Andreas Quirrenbach
  • Fonction : Auteur
Isabel Rebollido
Bin B Ren
Institut de Planétologie et d'Astrophysique de Grenoble
Glenn Schneider
Malavika Vasist
Mark C Wyatt
Yifan Zhou
Zackery W Briesemeister
Marta L Bryan
Per Calissendorff
Faustine Cantalloube
Laboratoire d'Astrophysique de Marseille
CV
Gabriele Cugno
Matthew de Furio
Trent J Dupuy
Samuel M Factor
Jacqueline K Faherty
Michael P Fitzgerald
Kyle Franson
Eileen C Gonzales
Callie E Hood
Alex R Howe
Adam L Kraus
Masayuki Kuzuhara
Anne-Marie Lagrange
  • Fonction : Auteur
Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics
Kellen Lawson
Cecilia Lazzoni
Pengyu Liu
Jorge Llop-Sayson
James P Lloyd
  • Fonction : Auteur
Raquel A Martinez
Johan Mazoyer
Laboratoire d'études spatiales et d'instrumentation en astrophysique = Laboratory of Space Studies and Instrumentation in Astrophysics
CV
Sascha P Quanz
Jea Adams Redai
Matthias Samland
Joshua E Schlieder
Motohide Tamura
Xianyu Tan
Taichi Uyama
Arthur Vigan
Laboratoire d'Astrophysique de Marseille
Johanna M Vos
Kevin Wagner
Schuyler G Wolff
Marie Ygouf
Xi Zhang
Keming Zhang
Zhoujian Zhang

Résumé

We present the highest fidelity spectrum to date of a planetary-mass object. VHS 1256 b is a <20 M Jup widely separated (∼8″, a = 150 au), young, planetary-mass companion that shares photometric colors and spectroscopic features with the directly imaged exoplanets HR 8799c, d, and e. As an L-toT transition object, VHS 1256 b exists along the region of the color-magnitude diagram where substellar atmospheres transition from cloudy to clear. We observed VHS 1256 b with JWSTʼs NIRSpec IFU and MIRI MRS modes for coverage from 1 to 20 μm at resolutions of ∼1000-3700. Water, methane, carbon monoxide, carbon dioxide, sodium, and potassium are observed in several portions of the JWST spectrum based on comparisons from template brown dwarf spectra, molecular opacities, and atmospheric models. The spectral shape of VHS 1256 b is influenced by disequilibrium chemistry and clouds. We directly detect silicate clouds, the first such detection reported for a planetary-mass companion. Unified Astronomy Thesaurus concepts: Brown dwarfs (185); Exoplanet atmospheres (487); Extrasolar gaseous giant planets (509)

Domaines

Planétologie et astrophysique de la terre [astro-ph.EP]
Fichier principal
Vignette du fichier
Miles_2023_ApJL_946_L6.pdf (6.59 Mo) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte

Johan Mazoyer  : Connectez-vous pour contacter le contributeur

https://hal.science/hal-04086305

Soumis le : mardi 2 mai 2023-04:26:46

Dernière modification le : lundi 9 décembre 2024-03:28:20

Archivage à long terme le : jeudi 3 août 2023-18:13:18

Télécharger pour visualiser

Dates et versions

hal-04086305 , version 1 (02-05-2023)

Identifiants

Citer

Brittany E Miles, Beth A Biller, Polychronis Patapis, Kadin Worthen, Emily Rickman, et al.. The JWST Early-release Science Program for Direct Observations of Exoplanetary Systems II: A 1 to 20 μm Spectrum of the Planetary-mass Companion VHS 1256–1257 b. The Astrophysical journal letters, 2023, 946, ⟨10.3847/2041-8213/acb04a⟩. ⟨hal-04086305⟩

Exporter

BibTeX XML-TEI Dublin Core DC Terms EndNote DataCite

Collections

OBSPM CEA INSU UGA CNRS UNIV-AMU LAM OSUG LESIA OSU-INSTITUT-PYTHEAS IPAG DSM-IRFU IRFU-AIM CEA-UPSAY PSL UNIV-PARIS-SACLAY UNIV-COTEDAZUR CERCLE CEA-DRF SORBONNE-UNIVERSITE SU-SCIENCES UP-SCIENCES ANR INEE-CNRS
93 Consultations
39 Téléchargements

Altmetric

Partager

More