BIBLIOS

  Ciências References Management System

Visitor Mode (Login)
Need help?


Back

Publication details

Document type
Journal articles

Document subtype
Full paper

Title
Nightside condensation of iron in an ultrahot giant exoplanet

Participants in the publication
David Ehrenreich (Author)
Christophe Lovis (Author)
Romain Allart (Author)
María Rosa Zapatero Osorio (Author)
Francesco Pepe (Author)
Stefano Cristiani (Author)
Rafael Rebolo (Author)
Nuno C. Santos (Author)
Francesco Borsa (Author)
Olivier Demangeon (Author)
Xavier Dumusque (Author)
Jonay I. González Hernández (Author)
Núria Casasayas-Barris (Author)
Damien Ségransan (Author)
Sérgio Sousa (Author)
Manuel Abreu (Author)
Dep. Física
LOLS - Laboratório de Óptica, Lasers e Sistemas
IA - Instituto de Astrofísica e Ciências do Espaço
Vardan Adibekyan (Author)
Michael Affolter (Author)
Carlos Allende Prieto (Author)
Yann Alibert (Author)
Matteo Aliverti (Author)
David Alves (Author)
Manuel Amate (Author)
Gerardo Avila (Author)
Veronica Baldini (Author)
Timothy Bandy (Author)
Willy Benz (Author)
Andrea Bianco (Author)
Émeline Bolmont (Author)
François Bouchy (Author)
Vincent Bourrier (Author)
Christopher Broeg (Author)
Alexandre Cabral (Author)
Dep. Física
LOLS - Laboratório de Óptica, Lasers e Sistemas
IA - Instituto de Astrofísica e Ciências do Espaço
Giorgio Calderone (Author)
Enric Pallé (Author)
H. M. Cegla (Author)
Roberto Cirami (Author)
João M. P. Coelho (Author)
Dep. Física
LOLS - Laboratório de Óptica, Lasers e Sistemas
IA - Instituto de Astrofísica e Ciências do Espaço
Paolo Conconi (Author)
Igor Coretti (Author)
Claudio Cumani (Author)
Guido Cupani (Author)
Hans Dekker (Author)
Bernard Delabre (Author)
Sebastian Deiries (Author)
Valentina D Odorico (Author)
Paolo Di Marcantonio (Author)
Pedro Figueira (Author)
Ana Fragoso (Author)
Ludovic Genolet (Author)
Matteo Genoni (Author)
Ricardo Génova Santos (Author)
Nathan Hara (Author)
Ian Hughes (Author)
Olaf Iwert (Author)
Florian Kerber (Author)
Jens Knudstrup (Author)
Marco Landoni (Author)
Baptiste Lavie (Author)
Jean-Louis Lizon (Author)
Monika Lendl (Author)
Gaspare Lo Curto (Author)
Charles Maire (Author)
Antonio Manescau (Author)
C. J. A. P. Martins (Author)
Denis Mégevand (Author)
Andrea Mehner (Author)
Giusi Micela (Author)
Andrea Modigliani (Author)
Paolo Molaro (Author)
Manuel Monteiro (Author)
Mario Monteiro (Author)
Manuele Moschetti (Author)
Eric Müller (Author)
Nelson Nunes (Author)
IA - Instituto de Astrofísica e Ciências do Espaço
Luca Oggioni (Author)
António Oliveira (Author)
Giorgio Pariani (Author)
Luca Pasquini (Author)
Ennio Poretti (Author)
José Luis Rasilla (Author)
Edoardo Redaelli (Author)
Marco Riva (Author)
Samuel Santana Tschudi (Author)
Paolo Santin (Author)
Pedro Santos (Author)
Alex Segovia Milla (Author)
Julia V. Seidel (Author)
Danuta Sosnowska (Author)
Alessandro Sozzetti (Author)
Paolo Spanò (Author)
Alejandro Suárez Mascareño (Author)
Hugo Tabernero (Author)
Fabio Tenegi (Author)
Stéphane Udry (Author)
Alessio Zanutta (Author)
Filippo Zerbi (Author)

Scope
International

Refereeing
Yes

Summary
Ultrahot giant exoplanets receive thousands of times Earth’s insolation1,2. Their high-temperature atmospheres (greater than 2,000 kelvin) are ideal laboratories for studying extreme planetary climates and chemistry3,4,5. Daysides are predicted to be cloud-free, dominated by atomic species6 and much hotter than nightsides5,7,8. Atoms are expected to recombine into molecules over the nightside9, resulting in different day and night chemistries. Although metallic elements and a large temperature contrast have been observed10,11,12,13,14, no chemical gradient has been measured across the surface of such an exoplanet. Different atmospheric chemistry between the day-to-night (‘evening’) and night-to-day (‘morning’) terminators could, however, be revealed as an asymmetric absorption signature during transit4,7,15. Here we report the detection of an asymmetric atmospheric signature in the ultrahot exoplanet WASP-76b. We spectrally and temporally resolve this signature using a combination of high-dispersion spectroscopy with a large photon-collecting area. The absorption signal, attributed to neutral iron, is blueshifted by −11 ± 0.7 kilometres per second on the trailing limb, which can be explained by a combination of planetary rotation and wind blowing from the hot dayside16. In contrast, no signal arises from the nightside close to the morning terminator, showing that atomic iron is not absorbing starlight there. We conclude that iron must therefore condense during its journey across the nightside.

Date of Publication
2020-03-11

Where published
Nature

Publication Identifiers
ISSN - 0028-0836,1476-4687

Publisher
Springer Science and Business Media LLC

Document Identifiers
DOI - https://doi.org/10.1038/s41586-020-2107-1
URL - http://dx.doi.org/10.1038/s41586-020-2107-1

Rankings
SCIMAGO Q1 (2019) - 14.05 - Multidisciplinary


Export

APA
David Ehrenreich, Christophe Lovis, Romain Allart, María Rosa Zapatero Osorio, Francesco Pepe, Stefano Cristiani, Rafael Rebolo, Nuno C. Santos, Francesco Borsa, Olivier Demangeon, Xavier Dumusque, Jonay I. González Hernández, Núria Casasayas-Barris, Damien Ségransan, Sérgio Sousa, Manuel Abreu, Vardan Adibekyan, Michael Affolter, Carlos Allende Prieto, Yann Alibert, Matteo Aliverti, David Alves, Manuel Amate, Gerardo Avila, Veronica Baldini, Timothy Bandy, Willy Benz, Andrea Bianco, Émeline Bolmont, François Bouchy, Vincent Bourrier, Christopher Broeg, Alexandre Cabral, Giorgio Calderone, Enric Pallé, H. M. Cegla, Roberto Cirami, João M. P. Coelho, Paolo Conconi, Igor Coretti, Claudio Cumani, Guido Cupani, Hans Dekker, Bernard Delabre, Sebastian Deiries, Valentina D Odorico, Paolo Di Marcantonio, Pedro Figueira, Ana Fragoso, Ludovic Genolet, Matteo Genoni, Ricardo Génova Santos, Nathan Hara, Ian Hughes, Olaf Iwert, Florian Kerber, Jens Knudstrup, Marco Landoni, Baptiste Lavie, Jean-Louis Lizon, Monika Lendl, Gaspare Lo Curto, Charles Maire, Antonio Manescau, C. J. A. P. Martins, Denis Mégevand, Andrea Mehner, Giusi Micela, Andrea Modigliani, Paolo Molaro, Manuel Monteiro, Mario Monteiro, Manuele Moschetti, Eric Müller, Nelson Nunes, Luca Oggioni, António Oliveira, Giorgio Pariani, Luca Pasquini, Ennio Poretti, José Luis Rasilla, Edoardo Redaelli, Marco Riva, Samuel Santana Tschudi, Paolo Santin, Pedro Santos, Alex Segovia Milla, Julia V. Seidel, Danuta Sosnowska, Alessandro Sozzetti, Paolo Spanò, Alejandro Suárez Mascareño, Hugo Tabernero, Fabio Tenegi, Stéphane Udry, Alessio Zanutta, Filippo Zerbi, (2020). Nightside condensation of iron in an ultrahot giant exoplanet. Nature, ISSN 0028-0836,1476-4687. eISSN . http://dx.doi.org/10.1038/s41586-020-2107-1

IEEE
David Ehrenreich, Christophe Lovis, Romain Allart, María Rosa Zapatero Osorio, Francesco Pepe, Stefano Cristiani, Rafael Rebolo, Nuno C. Santos, Francesco Borsa, Olivier Demangeon, Xavier Dumusque, Jonay I. González Hernández, Núria Casasayas-Barris, Damien Ségransan, Sérgio Sousa, Manuel Abreu, Vardan Adibekyan, Michael Affolter, Carlos Allende Prieto, Yann Alibert, Matteo Aliverti, David Alves, Manuel Amate, Gerardo Avila, Veronica Baldini, Timothy Bandy, Willy Benz, Andrea Bianco, Émeline Bolmont, François Bouchy, Vincent Bourrier, Christopher Broeg, Alexandre Cabral, Giorgio Calderone, Enric Pallé, H. M. Cegla, Roberto Cirami, João M. P. Coelho, Paolo Conconi, Igor Coretti, Claudio Cumani, Guido Cupani, Hans Dekker, Bernard Delabre, Sebastian Deiries, Valentina D Odorico, Paolo Di Marcantonio, Pedro Figueira, Ana Fragoso, Ludovic Genolet, Matteo Genoni, Ricardo Génova Santos, Nathan Hara, Ian Hughes, Olaf Iwert, Florian Kerber, Jens Knudstrup, Marco Landoni, Baptiste Lavie, Jean-Louis Lizon, Monika Lendl, Gaspare Lo Curto, Charles Maire, Antonio Manescau, C. J. A. P. Martins, Denis Mégevand, Andrea Mehner, Giusi Micela, Andrea Modigliani, Paolo Molaro, Manuel Monteiro, Mario Monteiro, Manuele Moschetti, Eric Müller, Nelson Nunes, Luca Oggioni, António Oliveira, Giorgio Pariani, Luca Pasquini, Ennio Poretti, José Luis Rasilla, Edoardo Redaelli, Marco Riva, Samuel Santana Tschudi, Paolo Santin, Pedro Santos, Alex Segovia Milla, Julia V. Seidel, Danuta Sosnowska, Alessandro Sozzetti, Paolo Spanò, Alejandro Suárez Mascareño, Hugo Tabernero, Fabio Tenegi, Stéphane Udry, Alessio Zanutta, Filippo Zerbi, "Nightside condensation of iron in an ultrahot giant exoplanet" in Nature, 2020. 10.1038/s41586-020-2107-1

BIBTEX
@article{44104, author = {David Ehrenreich and Christophe Lovis and Romain Allart and María Rosa Zapatero Osorio and Francesco Pepe and Stefano Cristiani and Rafael Rebolo and Nuno C. Santos and Francesco Borsa and Olivier Demangeon and Xavier Dumusque and Jonay I. González Hernández and Núria Casasayas-Barris and Damien Ségransan and Sérgio Sousa and Manuel Abreu and Vardan Adibekyan and Michael Affolter and Carlos Allende Prieto and Yann Alibert and Matteo Aliverti and David Alves and Manuel Amate and Gerardo Avila and Veronica Baldini and Timothy Bandy and Willy Benz and Andrea Bianco and Émeline Bolmont and François Bouchy and Vincent Bourrier and Christopher Broeg and Alexandre Cabral and Giorgio Calderone and Enric Pallé and H. M. Cegla and Roberto Cirami and João M. P. Coelho and Paolo Conconi and Igor Coretti and Claudio Cumani and Guido Cupani and Hans Dekker and Bernard Delabre and Sebastian Deiries and Valentina D Odorico and Paolo Di Marcantonio and Pedro Figueira and Ana Fragoso and Ludovic Genolet and Matteo Genoni and Ricardo Génova Santos and Nathan Hara and Ian Hughes and Olaf Iwert and Florian Kerber and Jens Knudstrup and Marco Landoni and Baptiste Lavie and Jean-Louis Lizon and Monika Lendl and Gaspare Lo Curto and Charles Maire and Antonio Manescau and C. J. A. P. Martins and Denis Mégevand and Andrea Mehner and Giusi Micela and Andrea Modigliani and Paolo Molaro and Manuel Monteiro and Mario Monteiro and Manuele Moschetti and Eric Müller and Nelson Nunes and Luca Oggioni and António Oliveira and Giorgio Pariani and Luca Pasquini and Ennio Poretti and José Luis Rasilla and Edoardo Redaelli and Marco Riva and Samuel Santana Tschudi and Paolo Santin and Pedro Santos and Alex Segovia Milla and Julia V. Seidel and Danuta Sosnowska and Alessandro Sozzetti and Paolo Spanò and Alejandro Suárez Mascareño and Hugo Tabernero and Fabio Tenegi and Stéphane Udry and Alessio Zanutta and Filippo Zerbi}, title = {Nightside condensation of iron in an ultrahot giant exoplanet}, journal = {Nature}, year = 2020, }