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The new JWST observatory is revealing far more bright galaxies in the early Universe than anyone predicted, and astrophysicists have more than one explanation for the puzzle.
Astrophysicists at UCLan challenge planetary formation norms and reveal young planets' flatness through the disk-instability model, impacting core accretion theory.
The James Webb Space Telescope has revealed a new dusty feature at the Beta Pictoris star system, curled like a cat's tail, hinting at a recent cosmic collision.
The canonical picture of star formation involves disk-mediated accretion, with Keplerian accretion disks and associated bipolar jets primarily observed in nearby, low-mass young stellar objects (YSOs). Recently, rotating gaseous structures and Keplerian disks have been detected around several massive (M > 8 M⊙) YSOs (MYSOs)1–4, including several disk-jet systems5–7. All the known MYSO systems are in the Milky Way, and all are embedded in their natal material. Here we report the detection of a rotating gaseous structure around an extragalactic MYSO in the Large Magellanic Cloud. The gas motion indicates that there is a radial flow of material falling from larger scales onto a central disk-like structure. The latter exhibits signs of Keplerian rotation, so that there is a rotating toroid feeding an accretion disk and thus the growth of the central star. The system is in almost all aspects comparable to Milky Way high-mass YSOs accreting gas from a Keplerian disk. The key difference between this source and its Galactic counterparts is that it is optically revealed rather than being deeply embedded in its natal material as is expected of such a massive young star. We suggest that this is the consequence of the star having formed in a low-metallicity and low-dust content environment. Thus, these results provide important constraints for models of the formation and evolution of massive stars and their circumstellar disks. The authors suggest that a probable Keplerian disk is feeding an optically revealed massive young stellar object in the Large Magellanic Cloud.
Australian astronomers detect ancient galactic seismic wave bignewsnetwork.com - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from bignewsnetwork.com Daily Mail and Mail on Sunday newspapers.
Australian astronomers detect ancient galactic seismic wave-Xinhua english.news.cn - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from english.news.cn Daily Mail and Mail on Sunday newspapers.
A new study investigating the properties of one of the dwarf planets in our solar system has found that it might have a 'squishy' composition, closer to a 'soft cheese' than a hard ball of rock.
Dwarf planet Eris is 'squishier' than expected phys.org - get the latest breaking news, showbiz & celebrity photos, sport news & rumours, viral videos and top stories from phys.org Daily Mail and Mail on Sunday newspapers.
A latest study based on so far unpublished data revealed that the dwarf planet Eris is surprisingly dissipative and ‘squishier’ than previously thought.
The discovery is testament to the immense power of modern telescopes like the Atacama Large Millimeter Array and the Very Large Telescope, based in Chile. And they'll be joined before the end of the decade by one even more capable.