Silicon in the dayside atmospheres of two ultra-hot Jupiters
Atmospheres of highly irradiated gas giant planets host a large variety of atomic and ionic species. Here we observe the thermal emission spectra of the two ultra-hot Jupiters WASP-33b and KELT-20b/MASCARA-2b in the near-infrared wavelength range with CARMENES. Via high-resolution Doppler spectrosco...
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| Veröffentlicht in: | Astronomy and astrophysics (Berlin) 2022-01, Vol.657, p.L2 |
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| creator | Cont, D. Yan, F. Reiners, A. Nortmann, L. Molaverdikhani, K. Pallé, E. Stangret, M. Henning, Th Ribas, I. Quirrenbach, A. Caballero, J. A. Zapatero Osorio, M. R. Amado, P. J. Aceituno, J. Casasayas-Barris, N. Czesla, S. Kaminski, A. López-Puertas, M. Montes, D. Morales, J. C. Morello, G. Nagel, E. Sánchez-López, A. Sedaghati, E. Zechmeister, M. |
| description | Atmospheres of highly irradiated gas giant planets host a large variety of atomic and ionic species. Here we observe the thermal emission spectra of the two ultra-hot Jupiters WASP-33b and KELT-20b/MASCARA-2b in the near-infrared wavelength range with CARMENES. Via high-resolution Doppler spectroscopy, we searched for neutral silicon (Si) in their dayside atmospheres. We detect the Si spectral signature of both planets via cross-correlation with model spectra. Detection levels of 4.8
σ
and 5.4
σ
, respectively, are observed when assuming a solar atmospheric composition. This is the first detection of Si in exoplanet atmospheres. The presence of Si is an important finding due to its fundamental role in cloud formation and, hence, for the planetary energy balance. Since the spectral lines are detected in emission, our results also confirm the presence of an inverted temperature profile in the dayside atmospheres of both planets. |
| doi_str_mv | 10.1051/0004-6361/202142776 |
| format | Article |
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σ
and 5.4
σ
, respectively, are observed when assuming a solar atmospheric composition. This is the first detection of Si in exoplanet atmospheres. The presence of Si is an important finding due to its fundamental role in cloud formation and, hence, for the planetary energy balance. Since the spectral lines are detected in emission, our results also confirm the presence of an inverted temperature profile in the dayside atmospheres of both planets.</description><identifier>ISSN: 0004-6361</identifier><identifier>EISSN: 1432-0746</identifier><identifier>DOI: 10.1051/0004-6361/202142776</identifier><language>eng</language><publisher>Heidelberg: EDP Sciences</publisher><subject>Extrasolar planets ; Gas giant planets</subject><ispartof>Astronomy and astrophysics (Berlin), 2022-01, Vol.657, p.L2</ispartof><rights>Copyright EDP Sciences Jan 2022</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c322t-974bb91c75ec0ae2a83b7e2ed4272d4902963408a2e8c86b4d7440d23ccaf50a3</citedby><cites>FETCH-LOGICAL-c322t-974bb91c75ec0ae2a83b7e2ed4272d4902963408a2e8c86b4d7440d23ccaf50a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,3714,27901,27902</link.rule.ids></links><search><creatorcontrib>Cont, D.</creatorcontrib><creatorcontrib>Yan, F.</creatorcontrib><creatorcontrib>Reiners, A.</creatorcontrib><creatorcontrib>Nortmann, L.</creatorcontrib><creatorcontrib>Molaverdikhani, K.</creatorcontrib><creatorcontrib>Pallé, E.</creatorcontrib><creatorcontrib>Stangret, M.</creatorcontrib><creatorcontrib>Henning, Th</creatorcontrib><creatorcontrib>Ribas, I.</creatorcontrib><creatorcontrib>Quirrenbach, A.</creatorcontrib><creatorcontrib>Caballero, J. A.</creatorcontrib><creatorcontrib>Zapatero Osorio, M. R.</creatorcontrib><creatorcontrib>Amado, P. J.</creatorcontrib><creatorcontrib>Aceituno, J.</creatorcontrib><creatorcontrib>Casasayas-Barris, N.</creatorcontrib><creatorcontrib>Czesla, S.</creatorcontrib><creatorcontrib>Kaminski, A.</creatorcontrib><creatorcontrib>López-Puertas, M.</creatorcontrib><creatorcontrib>Montes, D.</creatorcontrib><creatorcontrib>Morales, J. C.</creatorcontrib><creatorcontrib>Morello, G.</creatorcontrib><creatorcontrib>Nagel, E.</creatorcontrib><creatorcontrib>Sánchez-López, A.</creatorcontrib><creatorcontrib>Sedaghati, E.</creatorcontrib><creatorcontrib>Zechmeister, M.</creatorcontrib><title>Silicon in the dayside atmospheres of two ultra-hot Jupiters</title><title>Astronomy and astrophysics (Berlin)</title><description>Atmospheres of highly irradiated gas giant planets host a large variety of atomic and ionic species. Here we observe the thermal emission spectra of the two ultra-hot Jupiters WASP-33b and KELT-20b/MASCARA-2b in the near-infrared wavelength range with CARMENES. Via high-resolution Doppler spectroscopy, we searched for neutral silicon (Si) in their dayside atmospheres. We detect the Si spectral signature of both planets via cross-correlation with model spectra. Detection levels of 4.8
σ
and 5.4
σ
, respectively, are observed when assuming a solar atmospheric composition. This is the first detection of Si in exoplanet atmospheres. The presence of Si is an important finding due to its fundamental role in cloud formation and, hence, for the planetary energy balance. Since the spectral lines are detected in emission, our results also confirm the presence of an inverted temperature profile in the dayside atmospheres of both planets.</description><subject>Extrasolar planets</subject><subject>Gas giant planets</subject><issn>0004-6361</issn><issn>1432-0746</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><recordid>eNo9kE1LxDAURYMoOI7-AjcB13VeXtKkBTcy-MmAC3Ud0jSlHTqTmqTI_HtbRmb1uHC493EIuWVwzyBnKwAQmeSSrRCQCVRKnpEFExwzUEKek8WJuCRXMW6niKzgC_Lw2fWd9Xva7WlqHa3NIXa1oybtfBxaF1ykvqHp19OxT8FkrU_0fRy65EK8JheN6aO7-b9L8v389LV-zTYfL2_rx01mOWLKSiWqqmRW5c6CcWgKXimHrp4exVqUgKXkAgqDrrCFrESthIAaubWmycHwJbk79g7B_4wuJr31Y9hPkxolCoRcsnyi-JGywccYXKOH0O1MOGgGetakZwl6lqBPmvgfO2hZJA</recordid><startdate>20220101</startdate><enddate>20220101</enddate><creator>Cont, D.</creator><creator>Yan, F.</creator><creator>Reiners, A.</creator><creator>Nortmann, L.</creator><creator>Molaverdikhani, K.</creator><creator>Pallé, E.</creator><creator>Stangret, M.</creator><creator>Henning, Th</creator><creator>Ribas, I.</creator><creator>Quirrenbach, A.</creator><creator>Caballero, J. 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J. ; Aceituno, J. ; Casasayas-Barris, N. ; Czesla, S. ; Kaminski, A. ; López-Puertas, M. ; Montes, D. ; Morales, J. 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J.</au><au>Aceituno, J.</au><au>Casasayas-Barris, N.</au><au>Czesla, S.</au><au>Kaminski, A.</au><au>López-Puertas, M.</au><au>Montes, D.</au><au>Morales, J. C.</au><au>Morello, G.</au><au>Nagel, E.</au><au>Sánchez-López, A.</au><au>Sedaghati, E.</au><au>Zechmeister, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Silicon in the dayside atmospheres of two ultra-hot Jupiters</atitle><jtitle>Astronomy and astrophysics (Berlin)</jtitle><date>2022-01-01</date><risdate>2022</risdate><volume>657</volume><spage>L2</spage><pages>L2-</pages><issn>0004-6361</issn><eissn>1432-0746</eissn><abstract>Atmospheres of highly irradiated gas giant planets host a large variety of atomic and ionic species. Here we observe the thermal emission spectra of the two ultra-hot Jupiters WASP-33b and KELT-20b/MASCARA-2b in the near-infrared wavelength range with CARMENES. Via high-resolution Doppler spectroscopy, we searched for neutral silicon (Si) in their dayside atmospheres. We detect the Si spectral signature of both planets via cross-correlation with model spectra. Detection levels of 4.8
σ
and 5.4
σ
, respectively, are observed when assuming a solar atmospheric composition. This is the first detection of Si in exoplanet atmospheres. The presence of Si is an important finding due to its fundamental role in cloud formation and, hence, for the planetary energy balance. Since the spectral lines are detected in emission, our results also confirm the presence of an inverted temperature profile in the dayside atmospheres of both planets.</abstract><cop>Heidelberg</cop><pub>EDP Sciences</pub><doi>10.1051/0004-6361/202142776</doi><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | Bacon EDP Sciences France Licence nationale-ISTEX-PS-Journals-PFISTEX; EDP Sciences; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Extrasolar planets Gas giant planets |
| title | Silicon in the dayside atmospheres of two ultra-hot Jupiters |
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