Utilizza questo identificativo per citare o creare un link a questo documento:
http://hdl.handle.net/20.500.12386/29798
Titolo: | The potassium absorption on HD189733b and HD209458b | Autori: | Keles, Engin Mallonn, Matthias von Essen, Carolina Carroll, Thorsten A. Alexoudi, Xanthippi Pino, Lorenzo Ilyin, Ilya Poppenhäger, Katja Kitzmann, Daniel NASCIMBENI, VALERIO Turner, Jake D. Strassmeier, Klaus G. |
Data pubblicazione: | 2019 | Rivista: | MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY | Numero: | 489 | Fascicolo: | 1 | Da pagina:: | L37 | Abstract: | In this work, we investigate the potassium excess absorption around 7699 Å of the exoplanets HD189733b and HD209458b. For this purpose, we used high-spectral resolution transit observations acquired with the 2 × 8.4 m Large Binocular Telescope (LBT) and the Potsdam Echelle Polarimetric and Spectroscopic Instrument (PEPSI). For a bandwidth of 0.8 Å, we present a detection >7σ with an absorption level of 0.18 per cent for HD189733b. Applying the same analysis to HD209458b, we can set 3σ upper limit of 0.09 per cent, even though we do not detect a K-excess absorption. The investigation suggests that the K feature is less present in the atmosphere of HD209458b than in the one of HD189733b. This comparison confirms previous claims that the atmospheres of these two planets must have fundamentally different properties. | URI: | http://hdl.handle.net/20.500.12386/29798 | URL: | https://academic.oup.com/mnrasl/article/489/1/L37/5548780 | ISSN: | 0035-8711 | DOI: | 10.1093/mnrasl/slz123 | Bibcode ADS: | 2019MNRAS.489L..37K | Fulltext: | open |
È visualizzato nelle collezioni: | 1.01 Articoli in rivista |
File in questo documento:
File | Descrizione | Dimensioni | Formato | |
---|---|---|---|---|
slz123.pdf | PDF editoriale | 1.3 MB | Adobe PDF | Visualizza/apri |
Page view(s)
64
controllato il 6-ago-2024
Download(s)
12
controllato il 6-ago-2024
Google ScholarTM
Check
Altmetric
Altmetric
Tutti i documenti in DSpace sono pubblicati ad Accesso Aperto, salvo diversa indicazione per alcuni documenti specifici.