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Researchers focus AI on finding exoplanets

It could reshape how scientists identify new planets very far from Earth. ....

Cassandra Hall , Jason Terry , Planet Formation Research Group , Franklin College Of Arts , Sciences Department , University Of Georgia , Disk Substructures , High Angular Resolution Project , James Webb Telescope , James Webb Space Telescope , Nancy Grace Roman Observatory , Locating Hidden Exoplanets , Fusing Machine ,

We were wrong: all stars don't have planets, after all

Unless you have a critical mass of heavy elements when your star first forms, planets, including rocky ones, are practically impossible. ....

J Krist Stscl , Omega Centauri , Solar System , Nature Astronomy , Big Bang , Disk Substructures , High Angular Resolution Project ,

MétéoMédia - Telltale 'twist' points to the birth of a baby alien world

Telltale twist points to the birth of a baby alien world
Scott Sutherland
mardi, 26 mai 2020 à 08:45 - Astronomers spotted signs of brand new exoplanet forming around another star.
Astronomers have made another stride forward in their quest to image the birth of a planet around another star directly.
For decades, scientists have been developing the basic ideas about how planets form around stars. First, a star forms from a collapsing cloud of gas and dust. The remaining material surrounding the star is spun into a disk by the star s rotation, and parts of that disk clump together due to gravity. As these clumps gather more material to them, first planetesimals form, then protoplanets, and finally planets. ....

Anthony Boccaletti , Scott Sutherland , Anne Dutrey , Astrophysics Laboratory Of Bordeaux , Spectro Polarimetric Exoplanet Research , Disk Substructures , High Angular Resolution Project , Paris Observatory , European Southern Observatory , Large Telescope , Northern Chile , Emmanuel Di Folco , Astrophysics Laboratory , Extremely Large Telescope , Syfy Wire , ஸ்காட் சதர்லேண்ட் , வானியற்பியல் ஆய்வகம் ஆஃப் போர்டியாக்ஸ் , உயர் கோண தீர்மானம் ப்ராஜெக்ட் , பாரிஸ் கண்காணிப்பு , ஐரோப்பிய தெற்கு கண்காணிப்பு , பெரியது தொலைநோக்கி , வடக்கு சிலி , இம்மானுவேல் டி போல்கோ , வானியற்பியல் ஆய்வகம் , மிகவும் பெரியது தொலைநோக்கி ,

talks.cam : The ALMA View of Planet Formation

14:00
If you have a question about this talk, please contact Dr Can Cui.
The building blocks of planets are the dust, gas, and ice in the protoplanetary disks orbiting young stars. Deep, high resolution images of protoplanetary disks by ALMA have revealed complex and varied ring and spiral structures in a number of systems. In the Disk Substructures at High Angular Resolution Project (DSHARP), we undertook the first high angular resolution disk survey at millimeter wavelengths. DSHARP found that gaps and rings indicative of planet-disk interactions were widespread, implying that giant planet formation proceeds rapidly even at tens of au from the star. On the other hand, the origins of “grand design” millimeter continuum spiral arms are more enigmatic, and may point either to disk instabilities or the formation of super-Jovian planets at surprisingly wide separations. Gaps and rings are also common in molecular emission, and appear primarily to result from vigorous ....

Disk Substructures , High Angular Resolution Project , Exoplanet Meetings , University Of Cambridge , உயர் கோண தீர்மானம் ப்ராஜெக்ட் , பல்கலைக்கழகம் ஆஃப் கேம்பிரிட்ஜ் ,