The LHS 1903 System Offers New Clues About the Origin of the Mini-Neptune Radius Gap
📰 Original title: El sistema planetario LHS 1903: poniendo a prueba el ‘desierto de los minineptunos’
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#astronomy #exoplanets #planetaryformation #mini-neptunes
Witness the celestial spectacle of a rare interstellar comet, 3I/ATLAS, gracefully traversing our solar system. This enigmatic visitor from beyond our cosmic neighborhood holds the potential to revolu...
@skyatnightmag @space-and-astronomy-news-skyatnightmag
How come the #gasgiant #planet, TOI 1227 b, does not have a magnetic field, which will protect it against the X-Ray flares of its M-Type, i.e. #reddwarf, #star? All the gas giants of our solar systems have magnetic field. Jupiter has such a massive magnetic field that it almost reaches the orbit of Saturn. And it is speculated that its impact is felt even on Mars.
This is a neat result! ALMA observations show the "gravitational wiggle" in the gas in the protoplanetary disks around AB Aurigae! The presence of those wiggles would be a marker of the "top-down” pathway in planetary formation (bigger features first), instead of the bottom-up (accumulation of granules) one.
#ALMA #AtacamaLargeMillimeterArray #AtacamaLargeMillimeterSubmillimeterArray #PlanetaryFormation #TopDown
Interferometry of stunning spiral arms around young star reveals gravity’s hand in planet formation. Traditionally, planet formation has been described as a “bottom-up” process, as dust grains gradually collect into bigger conglomerations over tens of millions of years, from microns to centimeters to meters to kilometers. Alternatively, another theory proposes that planets can form rapidly...
At our current level of knowledge, many exoplanet findings take us by surprise. The only atmospheric chemistry we can see with clarity is Earth’s, and we still have many unanswered questions about how our planet and its atmosphere developed. With Earth as our primary reference point, many things about exoplanet atmospheres seem puzzling in comparison … Continue reading "Sulphur Makes A Surprise Appearance in this Exoplanet’s Atmosphere"
https://www.earth.com/news/cosmic-winds-from-planet-forming-discs-seen-for-the-first-time/
For the first time, researchers, including Naman Bajaj from the University of Arizona and Dr. Uma Gorti from the SETI Institute, have captured images of winds emanating from an aging yet still young planet-forming disk, offering vital clues on the dispersal of gas crucial for the formation of planets.
A recent study presented at the National Astronomy Meeting 2023 (NAM2023) examines a newly discovered planetary formation theory that challenges previous notions on how planets are formed in the disks of gas and dust surrounding young stars, also known as protoplanetary disks. Along with being presented at NAM2023, the study has also been submitted for … Continue reading "Some Star Systems Create a Planet Sandwich"
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3i/Atlas
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Dr. Juande Santander-Vela
Ansgar Schmidt 
SETI Institute
