Tag

Young Stellar Objects

All articles tagged with #young stellar objects

astronomy1 year ago•7 min saved

"Unveiling Planet Formation: JWST's Groundbreaking Search and Insights"

Astronomers have conducted the first search for forming planets using the James Webb Space Telescope, aiming to find early clues about planet formation and their influence on protoplanetary disks. Three studies led by different universities combined JWST's images with prior observations to observe protoplanetary disks around young stars HL Tau, SAO 206462, and MWC 758. While no new planets were detected, the sensitivity of JWST's instruments provided groundbreaking results, ruling out the existence of additional planets in the outer regions of MWC 758 and placing stringent constraints on suspected planets. The search for forming planets is crucial for understanding planet formation processes and the evolution of planetary systems.

via Phys.org|

#astronomical-observations #astronomy #james-webb-space-telescope

astronomy2 years ago•5 min saved

"Uncovering Unforeseen Structures in Young Planetary Disks"

New observations with the Atacama Large Millimetre/submillimetre Array (ALMA) suggest that planet formation around young stars may begin much earlier than previously thought, challenging existing theories. High-resolution images from the CAMPOS survey reveal rings and gaps in Class 0 and Class 1 protoplanetary disks, indicating potential planet formation at very early stages. The presence of these structures suggests that the disks have calmed enough for planets to start forming within about 300,000 years into the life of the young stellar object. However, it remains uncertain whether these substructures are caused by planets or other instabilities, and further observations are needed to determine their nature.

via ScienceAlert|

#alma #astronomical-observations #astronomy

astronomy2 years ago•6 min saved

Proximity of New Stars to Milky Way's Supermassive Black Hole Raises Concerns

Astronomers have discovered a star cluster named IRS 13 near the Milky Way's supermassive black hole, Sgr A*, that contains unusually young stars. This is surprising because the region close to the black hole is exposed to powerful radiation and gravitational forces that should inhibit star formation. The researchers suggest that the cluster formed elsewhere and was pulled towards the black hole, triggering a second episode of star formation. The findings shed light on the mysterious young stars in the galactic center and may have implications for understanding star populations in other galaxies with supermassive black holes.

via Universe Today|

#astronomy #irs-13 #milky-way