V atmosféře exoplanety byl objeven dosud nejtěžší chemický element | Exoplanetity | Články
Tisková report to the European Southern Observatory (ESO2213, 13. října 2022)
“Záhadou je, proč se tak českých chemický element záčné v kornich struvách atmosphere téchí planet,” says Tomás Azevedo Silva (PhD student, University of Porto; Instituto de Astrofísica e Ciências do Espaço; Portugal), published author, astronomy and astrophysics.
WASP-76 b the WASP-121 b nejsú – v szákálách Sluneční soustavy – objíčné planety. These are objects that we could pop like ‚extremely hot Jupiter’ (ultra hot Jupiter) – their size is comparable to the planet Jupiter, but they have an extremely high surface temperature of 1000 °C. The reason is the small distance from the mother star, which also means that the period between them is only a few days in both cases. Due to tomu mají planety obovvyklé prótyností – u WASP-76 b vědci for example próžnajájí, že v jejų atmosféře prší žezo.
Íszt byli vædci przyčetni, že v hornich trsvách obo planet WASP-76 bi WASP-121 b nalezli barium, which is even 2.5 times heavier than iron. “Due to the strong gravity of both planets, we would expect that heavy elements, such as barium, would quickly fall to the lower layers of the atmosphere,” explains spoluautor práce Olivier Demangeon (University of Porto; Instituto de Astrofísica e Ciências do Espaço; Portugal).
“Byl to v máhoho obhledech zádňný ožev,” describes Azevedo Silva. “Neočekávali jsme baryum a ani jsme ho cicelně nehledali. We have to carefully check if the signal is really coming from the planet, because baryum dosud nebylo u noy exoplanety pozorováno.“
The fact that baryum was detected in the atmospheres of these extraordinary bodies indicates that this category of exoplanets would be even more interesting than they were. I Kách Págáz Mózzeme Známky Barya Pozórovat I Na Oble Planety Země – V Podobě Jasně Zelené Barvy OhňostroJů – Je Pro vědce Otázkou, káky přírodní Proces Mohl Zápobit, Že Se tento tento tento tento tento tento tento tento tento charky procky procky procky cmradky procky crupdcy ploya. “V tomto päsätä si nejsme jistí what mechanism causes it,“ admits Olivier Demangeon.
Při studiu exoplanetárních atmosfér jsou tyto extremně horké planety extraordinarily useful. “Since it is not a hollow body, its atmosphere is very large. Proto se snadněji pozorují a zkoumají ve compared to atmospheric malých chladných planets,” explained Olivier Demangeon.
The composition of exoplanetary atmospheres requires specialized equipment. K analysis of light that was filtered through the atmospheric planet WASP-76 ba WASP-121 b, scientific instrument ESPRESSO pracújcí ve sluční s dalekohledem ESO/VLT (Very large telescope). Thanks to this, it was possible to detect several different chemical elements in the atmosphere, including barium.
Tyto nové results show that že jsme dosud zahljuli svů odlesk toho, jaká tjesznej exoplanety ve szkryvají skryvají. With the help of future devices, such as ešeletový spectrograf with high dispersion ANDES (ArmazoNes High Dispersion Echelle Spectrograph), which is not one of the devices for building a large telescope ESO/ELT (An extremely large telescope), astronomers will be able to explore the atmospheres of small and large exoplanets, including stone bodies similar to Earth, in much greater detail.
Additional information
Výzkum was presented in the article “Detection of barium in the atmospheres of the ultrahot gas giants WASP-76b and WASP-121b“, which is published in a magazine Astronomy and astrophysics (doi: 10.1051/0004-6361/202244489).
Složenie timu: T. Azevedo Silva (Instituto de Astrofísica e Ciências do Espaço, Universidade do Porto, Portugal [IA/UPorto, CAUP] the Departamento de Física e Astronomia Faculdade de Ciências, Universidade do Porto, Portugal [FCUP]), ODS Demangeon (IA/UPorto, CAUP a FCUP), NC Santos (IA/UPorto, CAUP a FCUP), R. Allart (Department of Physics and Institute for Exoplanet Research, Université de Montréal, Canada at the Observatoire astronomique de l’Université de Genève , Switzerland [UNIGE]), F. Borsa (INAF – Osservatorio Astronomico di Brera, Italy), E. Cristo (IA/UPorto, CAUP a FCUP), E. Esparza-Borges (Instituto de Astrofísica de Canarias, Spain [IAC] the Department of Astrophysics, Universidad de La Laguna, Tenerife, Spanělsko [IAC-ULL]), JV Seidel (European Southern Observatory, Chile [ESO Chile]), E. Palle (IAC), SG Sousa (IA/UPorto), HM Tabernero (Centro de Astrobiología, CSIC-INTA, Spain [CSIC-INTA]), MR Zapatero Osorio (CSIC-INTA), S. Cristiani (INAF – Osservatorio Astronomico di Trieste, Italy [INAF Trieste]), F. Pepe (UNIGE), R. Rebolo (IAC and IAC-ULL), V. Adibekyan (IA/UPorto a FCUP), Y. Alibert (Physikalisches Institut, University of Bern, Switzerland), SCC Barros (IA/ UPorto a FCUP), V. Bourrier (UNIGE), P. Di Marcantonio (INAF Trieste), V. D’Odorico (INAF Trieste, Scuola Normale Superiore, Italie Institute of Fundamental Physics of the Universe, Trieste, Italy [IFPU]), D. Ehrenreich (UNIGE a Center Vie dans l’Univers, Faculté des Sciences de l’Université de Genève, Švýcarsko), P. Figueira (UNIGE a IA/UPorto), JI González Hernández (IAC a Universidad de La Laguna, Departamento de Astrofísica, Spain), CJAP Martins (UA/UPorto a Centro de Astrofísica da Universidade do Porto, Portugal), A. Mehner (ESO Chile), G. Micela (INAF – Osservatorio Astronomico di Palermo, Italy), P. Molaroie (INAF Trieste and IFPU) Astrofisico di Torino, Italy), A. Suárez Mascareño (IAC and IAC-ULL) and S. Udry (UNIGE).
European Southern Observatory (ESO) enables scientists from the entire world to discover the universe’s secrets. Navrhujeme, stavíme a provozujeme land observatoroře svejvodne svečių, which astronomové use k lešenje vzrušujíchť čestované a svřeží fascination astronomií. Podporujeme international cooperation v astronomii. ESO was established as a mezivladní organization in 1962 and today it consists of 16 member states – Belgium, Czech Republic, Denmark, Finland, France, Ireland, Italy, Germany, Velcaron, Holland, Slovensko, Slovenia strategic partners – Chile, which hosts the ESO observatory , Australia. Ústředí ESO, the planetarium ESO Supernova is located near Mnichova v Německu, while atacama chilská pousť, amazing place and unique conditions. hostínašle pro pozoro, ESO trútaje tři observatoroře: La Silla, Paranal a Chajnantor. Na hoře Paranal jsuo to dalekohled VLT (Very Large Telescope) is an interferometer VLTI (Very Large Telescope Interferometer), as well as dva přehlidkové teleskopy – VISTA pracújíc v infračervené oblasti Surve vidiy Telescope oblasti a VST (VST). Na Observatoři Paranal bude ESO také hostit a provozovat pole teleskopů CTAS (Cherenkov Telesope Array South) pro detekti Čerenkovova radianų v atmosféře – nejcitlivější observatoětětětěsěvíen gama. Společně s internazionalimi partnery tratúje ESO teleskopy pro milimetrovou a submillimetrovou oblast APEX and ALMA pracúcíc na planině Chajnantor. On top of Cerro Armazones near Paranalu stavíme nový dalekohled ELT (Extrémně veljó dalekohled, Extremely Large Telescope) with primary mirror o prüvesměru 39 m. Z kanceláří v Santiagu riðídime naši činností v Chile a sámporágání s lošíchimi partnery a publicí.
Odkazy
scientific article
VLT
více o dalekohledu ESO/ELT (Extremely Large Telescope)
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Contacts
Petr Kabáth; national contact; Astronomický ústav AV ČR, 251 65 Ondřejov, Czech Republic; Email: [email protected]
Jiří Srba; translation; Email: [email protected]
Tomás Azevedo Silva; Instituto de Astrofisica e Ciências do Espaço, Faculdade de Ciências, Universidade do Porto; Porto, Portugal; Email: [email protected]
Olivier Demangeon; Instituto de Astrofisica e Ciências do Espaço, Faculdade de Ciências, Universidade do Porto; Porto, Portugal; Phone: +351 226 089 855; Email: [email protected]
Nuno Santos; Instituto de Astrofisica e Ciências do Espaço, Faculdade de Ciências, Universidade do Porto; Porto, Portugal; Email: [email protected]
María Rosa Zapatero Osorio; Centro de Astrobiología (CSIC-INTA); Madrid, Spain; Email: [email protected]
Hugo Tabernero; Centro de Astrobiología (CSIC-INTA); Madrid, Spain; Email: [email protected]
Jonay González Henández; Instituto de Astrofísica de Canarias; Tenerife, Spain; Email: [email protected]
Alejandro Suárez Mascareño; Instituto de Astrofísica de Canarias; Tenerife, Spain; Email: [email protected]
Paolo Molaro; INAF Astronomical Observatory of Trieste; Trieste, Italy; Email: [email protected]
Baptiste Lavie; University of Geneva; Geneva, Switzerland; Email: [email protected]
Juan Carlos Muñoz Mateos; ESO Media Officer; Garching bei Munich, Germany; Phone: +49 89 3200 6176; Email: [email protected]
Here are the recommended links:
[1] Tisková report ESO2213 – 13. října 2022