English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/215214
Share/Impact:
Statistics
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE
Exportar a otros formatos:

Title

Ground-based detection of an extended helium atmosphere in the Saturn-mass exoplanet WASP-69b

AuthorsNortmann, Lisa; Pallé, Enric; Salz, Michael; Sanz-Forcada, Jorge; Nagel, Evangelos; Alonso-Floriano, F. Javier; Czesla, Stefan; Yan, Fei; Chen, Guo; Snellen, Ignas A. G.; Zechmeister, Mathias; Schmitt, Jürgen H. M. M.; López-Puertas, Manuel ; Casasayas-Barris, Núria; Bauer, Florian F.; Amado, Pedro J. ; Caballero, José A.; Dreizler, Stefan; Henning, Thomas; Lampón, Manuel; Montes, David; Molaverdikhani, Karan; Quirrenbach, Andreas; Reiners, Ansgar; Ribas, Ignasi ; Sánchez López, Alejandro; Schneider, P. Christian; Zapatero Osorio, María R.
Issue Date2018
CitationScience 362(6421): 1388-1391 (2018)
AbstractHot gas giant exoplanets can lose part of their atmosphere due to strong stellar irradiation, and these losses can affect their physical and chemical evolution. Studies of atmospheric escape from exoplanets have mostly relied on space-based observations of the hydrogen Lyman-a line in the far ultraviolet region, which is strongly affected by interstellar absorption. Using ground-based high-resolution spectroscopy, we detected excess absorption in the helium triplet at 1083 nanometers during the transit of the Saturn-mass exoplanet WASP-69b, at a signal-to-noise ratio of 18. We measured line blueshifts of several kilometers per second and posttransit absorption, which we interpret as the escape of part of the atmosphere trailing behind the planet in comet-like form.© 2018 American Association for the Advancement of Science. All rights reserved.
Publisher version (URL)http://dx.doi.org/10.1126/science.aat5348
URIhttp://hdl.handle.net/10261/215214
DOIhttp://dx.doi.org/10.1126/science.aat5348
Identifiersdoi: 10.1126/science.aat5348
issn: 1095-9203
Appears in Collections:(CAB) Artículos
(IAA) Artículos
Files in This Item:
File Description SizeFormat 
IAA_2018Sci...362.1388N.pdf5,56 MBAdobe PDFThumbnail
View/Open
Show full item record
Review this work
 


WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.