All articles tagged with #debris disk
Originally Published 2 months ago — by Phys.org
Astronomers using the James Webb Space Telescope discovered a large debris disk around the nearby M-dwarf star TWA 20, providing new insights into planetary system evolution and demonstrating JWST's sensitivity to faint, cool debris disks around low-luminosity stars.
Originally Published 2 months ago — by Space
Astronomers have observed a white dwarf star, LSPM J0207+3331, actively tearing apart a planetary body, revealing recent accretion of debris rich in Earth-like elements, challenging current understanding of planetary system evolution and suggesting ongoing dynamical processes long after the star's death.
Originally Published 4 months ago — by ScienceAlert
New ALMA observations suggest that a massive, unseen exoplanet is warping the debris disk around the young star Fomalhaut, with the disk's eccentricity varying with distance, indicating complex planet-disk interactions. The findings support the presence of a planet between 70-115 au from the star, although it has not yet been directly detected.
Originally Published 4 months ago — by Earth.com
New high-resolution ALMA images of Fomalhaut's debris disk reveal a decreasing eccentricity with distance from the star, suggesting the presence of an unseen planet shaping the disk's structure through gravitational influence, providing insights into planetary system evolution.
Originally Published 4 months ago — by Phys.org
Astronomers using ALMA have discovered that Fomalhaut's debris disk has a decreasing eccentricity with distance from the star, suggesting the influence of an unseen massive planet that shaped the disk early in its history, providing new insights into planetary system formation.
Originally Published 7 months ago — by SciTechDaily
Astronomers using the James Webb Space Telescope confirmed the presence of crystalline water ice in a debris disk around the star HD 181327, providing direct evidence of water ice orbiting a Sun-like star and offering insights into planetary formation processes in other systems.
Originally Published 2 years ago — by NASA
NASA's James Webb Space Telescope has discovered a new, previously unseen structure in the Beta Pictoris system, located 63 light-years away. The structure, shaped like a cat's tail, extends from the secondary debris disk and is composed of highly porous organic refractory material. The team of astronomers also observed differences in temperature between the two disks, indicating different compositions. The team's preferred model suggests that the cat's tail is the result of a recent dust production event, and its unusual curvature is explained as an optical illusion. These findings were presented at the 243rd meeting of the American Astronomical Society and provide new insights into the complex planetary system of Beta Pictoris.
Originally Published 2 years ago — by Universe Today
The James Webb Space Telescope (JWST) has observed a debris disk around a white dwarf star, providing insights into the composition and formation of these disks. The observations of the star WD 0145+234 confirm the presence of silicate grains and suggest the presence of carbonates, indicating larger body collisions have contributed to the disk. This finding suggests that white dwarf debris disks may result from similar planetary systems as our own. Further analysis of the data is ongoing to determine the most useful future observations.
Originally Published 2 years ago — by HT Tech
NASA's James Webb Space Telescope captured a sharp infrared image of Fomalhaut's debris disk, revealing details never seen before, including a large dust cloud in the outer ring that is possible evidence for colliding bodies, and an inner dust disk and gap likely shaped and maintained by embedded but unseen planets. The debris belts stretch across a gargantuan amount of space, nearly 14 billion miles (23 billion km) from Fomalhaut. The telescope used its Mid-Infrared Instrument (MIRI) to capture the image.
Originally Published 2 years ago — by Universe Today
The James Webb Space Telescope has revealed a more complex structure than expected in the debris disk surrounding the star Fomalhaut, including hints of planets forming among the dust and debris. The telescope's powerful infrared instruments caught the glow of dust in the disk's inner regions, revealing the presence of multiple rings and other features. The Fomalhaut system is full of surprises, and astronomers have been looking at it for a long time, with each new telescope revealing something new.
Originally Published 2 years ago — by Daily Mail
NASA's James Webb Space Telescope has captured new images of Fomalhaut, a star located 25 light-years away from Earth, revealing three belts around it, including two inner ones previously unknown. The discovery of these belts could be the strongest indication yet that Fomalhaut has planets, possibly with alien life. The images also reveal a large dust cloud within the outer ring, which may be evidence of a collision between two protoplanets. The study describing the findings has been published in Nature Astronomy.