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New Exoplanet Discovery Challenges Established Astronomical Theories

Scientists have identified a Jupiter-sized planet, TOI-4860 b, around a low-mass star, challenging conventional planet formation theories. An international team of researchers has discovered an unusual Jupiter-sized planet orbiting a low-mass star called TOI-4860, located in the Corvus constella ....

United States , Mourad Ghachoui , Owenj Scutt , Taiki Kagetani , Douglasa Caldwell , George Dransfield , Sara Seager , Karena Collins , Masahiro Ikoma , Takayuki Kotani , Teruyuki Hirano , Georgina Dransfield , Zouhair Benkhaldoun , Elsa Ducrot , Franciscoj Pozuelos , Amaury Triaud , Peterp Pedersen , Yasmint Davis , Daniel Sebastian , Mathilde Timmermans , Khalid Barkaoui , Norio Narita , Samantha Thompson , Lionelj Garc , Noriharu Watanabe , Kiyoe Kawauchi ,

Hydroxyl molecule signature detected in an "ultra-hot Jupiter" exoplanet


Astronomers obtain the first direct evidence of hydroxyl molecules in the atmosphere of a planet beyond the Solar System.
Artist’s impression of an ultra-hot Jupiter exoplanet, WASP-33b. Image credit Astrobiology Center
An international collaboration of astronomers led by a researcher from the Astrobiology Center and Queen’s University Belfast, and including researchers from Trinity College Dublin, has detected a new chemical signature in the atmosphere of an extrasolar planet (a planet that orbits a star other than our Sun).
The hydroxyl radical (OH) was found on the dayside of the exoplanet WASP-33b. This planet is an “ultra-hot Jupiter”, a gas-giant planet orbiting its host star much closer than Mercury orbits the Sun and therefore reaching atmospheric temperatures of more than 2,500°C (hot enough to melt most metals). ....

United Kingdom , Neale Gibson , Motohide Tamura , Chris Watson , Hajime Kawahara , Stevanus Nugroho , Queen University Belfast , Astrobiology Center , University Of Tokyo , Trinity College Dublin , University Belfast , Solar System , Ernst De Mooij , Infrared Doppler , Subaru Telescope , Thirty Meter Telescope , European Extremely Large Telescope , ஒன்றுபட்டது கிஂக்டம் , நீல் கிப்சன் , கிறிஸ் வாட்சன் , ராணி பல்கலைக்கழகம் பெல்ஃபாஸ்ட் , பல்கலைக்கழகம் ஆஃப் டோக்கியோ , திரித்துவம் கல்லூரி டப்ளின் , பல்கலைக்கழகம் பெல்ஃபாஸ்ட் , சூரிய அமைப்பு , அகச்சிவப்பு டாப்லர் ,