All articles tagged with #alma
NASA captured rare snowfall in the Atacama Desert, one of the driest places on Earth, due to an unusual cold-core cyclone, causing temporary disruption at the ALMA observatory and highlighting increasing climate variability in the region.
A Japanese research team measured the temperature of the universe 7 billion years ago using data from ALMA, finding it to be about 5.13 K, roughly double today's temperature, which confirms predictions of the Big Bang theory with high precision and supports our understanding of cosmic evolution.
Astronomers using JWST and ALMA studied the distant galaxy A1689-zD1 and found it has an unusually low dust-to-gas ratio despite its high metallicity and dust mass, suggesting different dust formation and destruction processes in early galaxies.
ALMA and JWST have captured the first image of the launch point of protostellar jets in the HH 211 system, providing new insights into how young stars grow by shedding excess angular momentum through magnetic field-driven jets, which helps material accrete onto the star.
Scientists detected heavy water in a planet-forming disk around the young star V883 Orionis, providing evidence that this water predates the star itself and originated in the cold molecular cloud that formed the star, offering insights into the journey of water in planetary systems.
Astronomers have discovered that the largest Oort Cloud comet, C 2014 UN271, is active far from the Sun, venting carbon monoxide gas at over a billion miles away, challenging previous assumptions about comet dormancy in the outer solar system. Using ALMA, they observed jets and activity driven by volatile ices, providing new insights into comet evolution and the early solar system materials. The comet will approach the Sun in 2031, offering opportunities to study how its activity changes as it warms.
Astronomers have observed the earliest stages of planet formation around the young star HOPS-315 using JWST and ALMA, capturing the formation of solid minerals close to the star, which marks the beginning of rocky planet development and provides new insights into the initial steps of planetary system creation.
Luca Guadagnino's film 'After the Hunt' attempts to explore cancel culture and complex moral gray areas within academia, but it ultimately fails to provide meaningful insight, instead presenting a muddled and heavy-handed critique that leaves viewers questioning its purpose and message.
Scientists have observed a baby planet, AB Aurigae b, actively forming within its birth disk using ALMA and the Very Large Telescope, providing direct evidence of ongoing mass accretion and challenging traditional models of planet formation, especially given its early age and location within the disk.
The article highlights the construction and operation of the ALMA telescope in Chile, a powerful radio-astronomy observatory composed of 66 antennas that work together to observe distant cosmic regions, with recent maintenance and weather challenges discussed.
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.
Astronomers using ALMA have for the first time spatially resolved protostellar outflows and jets in the Milky Way's outer region, revealing that star formation physics is universal despite environmental differences, with episodic ejections and unique chemical signatures observed in a low-metallicity, primitive environment.
Recent observations of 15 planet-forming disks around young stars by ALMA reveal slight warps that may explain the tilts of planets in our solar system, suggesting that such disk warps are common and could influence planet formation and orbital inclinations.