Lmst

Des astronomes utilisant le JWST ont détecté une molécule inattendue sur la "planète infernale" WASP‑121b : indice d'une chimie atmosphérique complexe sur cette géante gazeuse brûlante. https://sciencepost.fr/un-monde-brulant-une-molecule-introuvable-la-decouverte-renversante-de-james-webb-sur-une-planete-infernale/ #WASP121b #JWST #exoplanète #astrochimie #sciencepost

🔥 3000°C, des pluies de fer, des vents fous, et maintenant… une molécule jamais vue !
🪐 Le télescope James Webb a détecté du monoxyde de silicium sur WASP-121b, « planète de l’enfer » à 880 années-lumière.
Ce monde brûlant défie tout ce qu’on pensait savoir sur les exoplanètes.
🔗 https://dailygeekshow.com/cette-decouverte-du-telescope-james-webb-sur-une-planete-infernale-intrigue-les-astronomes-du-monde-entier/
#JamesWebb #WASP121b #Exoplanètes #Espace #DécouverteAstronomique #SiO #PlanèteDeLenfer

WASP-121b: Höllenplanet aus der Kälte. Daten des James-Webb-Teleskops klären Entstehungsort des ultraheißen Gasriesen. #Exoplanet #JWST #WASP121b #astronomie
https://www.scinexx.de/news/kosmos/wasp-121b-hoellenplanet-aus-der-kaelte/

#MPIA:
"
Wo der extrem heiße Exoplanet Wasp-121b entstand
"
"Methan und Siliziumoxid in der Atmosphäre des Planeten deuten auf eine Herkunft in einer Region hin, die dem Bereich der Gas- und Eisriesen in unserem Sonnensystem entspricht"

https://www.mpg.de/24499781/ursprung-explanet-wasp-121b

2.6.2025

#Astronomie #Exoplanet #JWST #Methan #NIRSpec #Planetologie #Siliziumoxid #WASP121b #Weltraumteleskop

Stoked to find an editorial on the fiery exoplanet WASP-121b "Tylos" in the relaunch issue of Heavy Metal Magazine, by Editor-in-Chief Frank Forte.

#HeavyMetal #HeavyMetalMagazine #Astronomy #Astrodon #Astrophysics #FrankForte #science #WASP121b #Tylos #exoplanet #scifi #sciencefiction #magazine

An artist's rendering and a description of exoplanet Tylos.

#WASP121b:

#Exoplanet mit #Eisenregen und heftigen #Winden

Ein merkwürdiger Jetstream, ein neuartiges #Klima und die Entdeckung von #Titan – eine #Forschungsgruppe hat in die #Atmosphäre des #Exoplaneten Wasp-121 b geblickt.

https://www.golem.de/news/wasp-121-b-exoplanet-mit-eisenregen-und-heftigen-winden-2502-193542.html

Extrasolarer Gasriese hat dreistöckige Winde. Erste 3D-Kartierung einer Exoplaneten-Gashülle enthüllt einzigartiges Wettermuster. #Exoplanet #Gasriese #Atmosphaere #Astronomie #Planet #WASP121b
https://www.scinexx.de/news/kosmos/extrasolarer-gasriese-hat-dreistoeckige-winde/

This Hot Jupiter Probably Formed Close to Its Star

https://fed.brid.gy/r/https://www.universetoday.com/170749/this-hot-jupiter-probably-formed-close-to-its-star/

<p>The current exoplanet census contains <a href="https://science.nasa.gov/exoplanets/discoveries-dashboard/">5,832 confirmed candidates</a>, with more than 7,500 still awaiting confirmation. Of those that have been confirmed, most have been gas giants ranging from Neptune-like bodies (1992) to those similar to or many times the size and mass of Jupiter and Saturn (1883). Like the gas giants of the Solar System, astronomers generally theorized that these types of planets form in the outer reaches of their star system, where conditions are cold enough for gases like hydrogen and helium and volatile compounds (water, ammonia, methane, etc.) will condense or freeze solid.</p>

<p>However, astronomers have noted that many of the gas giants they’ve observed orbited close to their stars, known as “Hot Jupiters.” This has raised questions about whether or not gas giants and other planets migrate after formation until they find their long-term, stable orbits. In a new study, a team from Arizona State University’s <a href="https://sese.asu.edu/">School Of Earth and Space Exploration</a> (ASU-SESE) examined the atmospheric chemistry of several Hot and Ultra-Hot Jupiters. After examining <a href="https://science.nasa.gov/exoplanet-catalog/wasp-121-b/">WASP-121b</a>, the team came to the unexpected conclusion that it likely formed close to its star.</p>

<span id="more-170749"></span>

<p>The research was conducted by Graduate Associate Peter C. B. Smith and

WASP-121b is vermoedelijk veel dichter bij zijn moederster ontstaan dan werd aangenomen

Astronomen hebben met behulp van het Immersion GRating INfrared Spectrograph (IGRINS)-instrument op de Gemini South-telescoop de atmosfeer van WASP-121b onderzocht, een van de meest uitgebreid bestudeerde ultrahete Jupiters.

https://www.kuuke.nl/wasp-121b-is-vermoedelijk-veel-dichter-bij-zijn-moederster-ontstaan-dan-werd-aangenomen/

#atmosfeer #exoplaneet #GeminiSouth #UltraheteJupiter #wasp121b

IT'S EXOCUP TIME!!!!

RT @ExocastExoCup@twitter.com

🚨It's here; the 1st poll of #ExoCup2022!🚨
In Round 1 Group A we have #WASP121b, #TRAPPIST1e, #GJ1132b, & #PSR1257b fighting for two slots in the Round-of-16. hot Jupiter, temperate rock, dense super-earth, or resurrected pulsar world. Which #exoplanet will prevail?

🐦🔗: https://twitter.com/ExocastExoCup/status/1589603884427005953

#astronomy #exoplanets #WASP121b #Hubble #corundum An article published in the journal "Nature Astronomy" reports the results of a new study on the exoplanet WASP-121b, an ultrahot Jupiter considered one of the planets with the most extreme conditions known.

https://english.tachyonbeam.com/2022/02/23/on-the-exoplanet-wasp-121b-perhaps-rubies-and-sapphires-rain-down/

#WASP121b

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