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Physics - JWST Sees More Galaxies than Expected

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.

City ofUnited kingdomUnited statesNorthwestern universityNew yorkJohns hopkins universityNashwan sabtiCallum donnanAndrea ferraraScuola normale superioreLaura sommovigoSteven finkelsteinArrabal haroCarin cainIvo labbRachel somerville

New Study Reveals Young Planets Are More Flat Than They Are Spherical

Astrophysicists at UCLan challenge planetary formation norms and reveal young planets' flatness through the disk-instability model, impacting core accretion theory.

United kingdomJohn lopezLeah hustak stscAdam fentonDimitris stamatellosUniversity of central lancashire uclanUclan jeremiah horrocks institute for mathematicsTech timesCentral lancashireForming diskLeah hustakYoung planetAstrophysics lettersJeremiah horrocks institutePerformance computing facilityAtacama large millimeter array

Webb discovers close star system suffered recent trauma

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.

Marshall perrinIsabel rebollidoBeta pictorisAstrobiology centerJames webb space telescopeLight speedChristopher starkKellen lawsonJens kammererAtacama large millimeter array

A probable Keplerian disk feeding an optically revealed massive young star

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

Co figLarge magellanic cloudAtacama large millimeter arrayVery large telescopeExtended dataWith keplerianLarge keplerianMilky wayGalactic keplerianMilky wayb type

Australian astronomers detect ancient galactic seismic wave

Australian astronomers detect ancient galactic seismic wave
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Australian capital territoryTakafumi tsukuiCollege of scienceAustralian national universityAtacama large millimeter array