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Very Large Array

All articles tagged with #very large array

science-and-astronomy2 years ago•4 min saved

First-ever photo of stormy vortex at Uranus' north pole captured by NASA.

Astronomers using the Very Large Array (VLA) of radio telescopes in New Mexico have detected a vortex of relatively warm air swirling beneath Uranus' clouds, providing strong evidence for the existence of a cyclone anchored at the planet's north pole. Polar vortices seem to be a common trait of all planets with atmospheres, at least in our solar system. The discovery of a northern vortex on Uranus was made through the detection of thermal emission in the form of radio waves.

via Space.com|

#cyclone #polar-vortex #science-and-astronomy

science2 years ago•3 min saved

Radio Waves and Magnetic Fields Detected on Distant Exoplanets

The Very Large Array in New Mexico discovered radio waves coming from YZ Ceti B, a planet just 12 light years away from Earth. Scientists are interested in the planet because it might be the first outside our solar system with a protective magnetic field like Earth's. There are four Earth-sized planets in our solar system, and YZ Ceti B is too close to its sun to expect to find life, but could open the door for more research. The discovery raises the question of whether Earth is a common type of planet.

via KOAT New Mexico|

#earth-sized-planet #magnetic-field #radio-waves

science-and-astronomy2 years ago•4 min saved

Unraveling the Core of a Distant Galaxy Cluster through Radio Signals

Astronomers investigating an anomalous radio emission from the galactic cluster Abell 1213 have discovered that it may come from the 1.66 million light-year-long radio tail of its dominating central galaxy, 4C29.41. The team also found evidence of mergers between galaxies in the cluster, which is located around 647 million light-years from Earth. The radio emission is not a radio halo, but rather a radio relic, possibly caused by a past galactic merger. The cluster's core has an intricate substructure, and star-forming galaxies are not restricted to the edges of Abell 1213.

via Space.com|

#abell-1213 #galactic-cluster #radio-galaxy