Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/179518
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Multiple water band detections in the CARMENES near-infrared transmission spectrum of HD 189733 b |
Autor: | Alonso-Floriano, F. Javier; Sánchez-López, A. CSIC ORCID; Snellen, Ignas A. G.; López-Puertas, Manuel CSIC ORCID; Nagel, Evangelos; Amado, Pedro J. CSIC ORCID; Bauer, FF ; Caballero, J. A. ; Czesla, S.; Nortmann, L.; Pallé, Enric; Salz, M.; Reiners, Ansgar; Ribas, Ignasi CSIC ORCID; Quirrenbach, Andreas; Aceituno, Jesús; Anglada-Escudé, Guillem CSIC ORCID; Béjar, Victor J. S.; Guenther, E. W.; Henning, Thomas; Kaminski, Adrian; Kürster, M.; Lampón, M.; Lara, Luisa María CSIC ORCID; Montes, D.; Morales, Juan Carlos CSIC ORCID; Tal-Or, L.; Schmitt, Jürgen H. M. M.; Zapatero Osorio, María Rosa CSIC ORCID; Zechmeister, Mathias | Palabras clave: | Techniques: spectroscopic Planets and satellites: atmospheres Planets and satellites: individual: HD 189733 b Infrared: planetary systems |
Fecha de publicación: | 2019 | Editor: | EDP Sciences | Citación: | Astronomy and Astrophysics 621:A74 (2019) | Resumen: | Aims. We explore the capabilities of CARMENES for characterising hot-Jupiter atmospheres by targeting multiple water bands, in particular, those at 1.15 and 1.4 μm. Hubble Space Telescope observations suggest that this wavelength region is relevant for distinguishing between hazy and/or cloudy and clear atmospheres. Methods. We observed one transit of the hot Jupiter HD 189733 b with CARMENES. Telluric and stellar absorption lines were removed using SYSREM, which performs a principal component analysis including proper error propagation. The residual spectra were analysed for water absorption with cross-correlation techniques using synthetic atmospheric absorption models. Results. We report a cross-correlation peak at a signal-to-noise ratio (S/N) of 6.6, revealing the presence of water in the transmission spectrum of HD 189733 b. The absorption signal appeared slightly blueshifted at-3.9 ± 1.3 km s. We measured the individual cross-correlation signals of the water bands at 1.15 and 1.4 μm, finding cross-correlation peaks at S/N of 4.9 and 4.4, respectively. The 1.4 μm feature is consistent with that observed with the Hubble Space Telescope. Conclusions. The water bands studied in this work have been mainly observed in a handful of planets from space. Being able also to detect them individually from the ground at higher spectral resolution can provide insightful information to constrain the properties of exoplanet atmospheres. Although the current multi-band detections can not yet constrain atmospheric haze models for HD 189733 b, future observations at higher S/N could provide an alternative way to achieve this aim.© 2019 ESO. | URI: | http://hdl.handle.net/10261/179518 | DOI: | 10.1051/0004-6361/201834339 | Identificadores: | doi: 10.1051/0004-6361/201834339 issn: 1432-0746 |
Aparece en las colecciones: | (IAA) Artículos (CAB) Artículos |
Ficheros en este ítem:
Fichero | Descripción | Tamaño | Formato | |
---|---|---|---|---|
IAA_2019_aa34339-18.pdf | 8,52 MB | Adobe PDF | Visualizar/Abrir |
CORE Recommender
SCOPUSTM
Citations
52
checked on 17-abr-2024
WEB OF SCIENCETM
Citations
51
checked on 28-feb-2024
Page view(s)
287
checked on 23-abr-2024
Download(s)
124
checked on 23-abr-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.