All articles tagged with #fomalhaut
Astronomers observed what they thought was a planet around star Fomalhaut, but it vanished due to a collision between asteroid-sized bodies, creating a debris cloud. A second similar object appeared nearby, indicating violent impacts rather than a new planet, challenging existing models of planetary formation and raising concerns for future exoplanet detection methods.
Astronomers observed a rare collision between two asteroids around the star Fomalhaut, providing insights into planet formation processes and highlighting the dynamic and collision-rich environment of this nearby star system. The event also helped distinguish between actual planets and dust clouds, refining methods for exoplanet detection.
NASA's Hubble Space Telescope captured images of two massive cosmic collisions near the star Fomalhaut, revealing dust clouds from space rocks at least 37 miles wide. These rare observations suggest such collisions may be more common than previously thought, providing valuable insights into planet formation processes.
Astronomers using the Hubble Space Telescope observed the first direct evidence of asteroid collisions in a nearby star system, Fomalhaut, revealing dynamic planetary activity and raising caution for future exoplanet imaging efforts.
Astronomers captured the first direct images of collisions between large objects in a nearby star system, Fomalhaut, providing insights into planet formation and the behavior of planetesimals, with observations suggesting these icy bodies are similar to solar system comets. The study highlights the importance of understanding dust clouds and collisions in young planetary systems to distinguish them from planets.
Astronomers observed a rare collision between two protoplanets around star Fomalhaut, creating a bright dust cloud, providing a unique real-time glimpse into celestial collisions and challenging previous assumptions about exoplanets.
NASA's Hubble Space Telescope has captured the first direct images of asteroid collisions in a nearby star system, Fomalhaut, revealing rapid and violent planetary system evolution, with debris clouds that could be mistaken for planets, providing valuable insights into planetary formation and the dynamics of planetesimals.
Fomalhaut, known as 'The Solitary One,' marks the arrival of autumn in the night sky, especially visible low in the southeast during October evenings. It is a bright, bluish-white star located in the constellation Piscis Austrinus, about 25 light-years away, and historically significant as one of the 'Royal Stars.' Its prominence and solitude make it a notable celestial marker for the season.
This week offers prime opportunities for stargazing in North America, with the Northern Lights potentially intensifying after the fall equinox, the visibility of the bright star Fomalhaut near Saturn, and seasonal stars Capella and Arcturus shining in the night sky, along with the nearly full harvest moon.
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.
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.
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.
Using the James Webb Space Telescope, astronomers have discovered that the star Fomalhaut, which is home to one of the first asteroid belts discovered outside the Solar System, is actually orbited by a nested series of three concentric belts, extending out to a distance of 150 astronomical units. These debris fields around the young star could help astronomers piece together the processes involved in planetary formation and the dynamics of a young planetary system, leading to a better understanding of how our own Solar System came into being.
The James Webb Space Telescope has directly imaged three dusty disks surrounding a young star called Fomalhaut, including an asteroid belt and two previously undiscovered inner disks. The disks were created from collisions between large bodies of gas, rock, and other cosmic material and serve as places for left-over material from the formation of the star to clump together and potentially form planets or asteroids. Webb's observations allowed scientists to measure the sizes of the disks and compare their characteristics to that of our own asteroid and Kuiper belts. Astronomers believe that the disks were likely carved out by the gravitational forces of planets orbiting Fomalhaut.
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.