To the extent that we can see them, galaxies in the very early universe should look relatively young and unformed. But galaxy ALESS 073.1 is a surprise to astronomers: it looks more mature than we’d have any reason to expect. Why? Source: https://earthsky.org/space/galaxy-looks-older-than-its-years-aless-073-1…
Tag: Atacama Large Millimeter/submillimeter Array
Observations inspect radio emission from two magnetars
Using the Australia Telescope Compact Array (ATCA) and the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers have conducted a study of two magnetars known as PSR J1622−4950 and 1E 1547.0−5408. Results of this investigation, published February 4 on arXiv.org, provide important information about radio emission from these two sources. Source: https://phys.org/news/2021-02-radio-emission-magnetars.html…
Researchers investigate the brightest cluster galaxy in MACS 1931.8-2635
Using Very Large Telescope (VLT) and Atacama Large Millimeter/submillimeter Array (ALMA), researchers from the University of Vienna, Austria, and elsewhere have investigated the brightest cluster galaxy (BCG) in a massive galaxy cluster known as MACS 1931.8-2635. Results of the study, published January 28 on arXiv.org, deliver important information about the nature of this BCG. Source: https://phys.org/news/2021-02-brightest-cluster-galaxy-macs-.html…
Astronomers find possible exoplanet-in-the-making within its own whirlpool
Astronomers have discovered a possible newly-born planet forming within its own “whirlpool” of dust and pebbles, in orbit around a young star 330 light-years from Earth. Source: https://earthsky.org/space/star-hd-163296-new-planet-seen-forming-within-whirlpool…
Study investigates emission from a distant red quasar
Using the Atacama Large Millimeter/submillimeter Array (ALMA) in Chile, an international team of astronomers has performed observations of HSC J120505.09−000027.9—the most distant red quasar so far detected and found that it showcases an extended emission of ionized carbon. The finding is reported in a paper published January 4 on arXiv.org. Source: https://phys.org/news/2021-01-emission-distant-red-quasar.html…
Scientists Discover New Molecule, Possible Basis For Life, on Saturn’s Moon Titan
CNN reports:
Saturn’s largest moon, Titan, is the only moon in our solar system that has a thick atmosphere. It’s four times denser than Earth’s. And now, scientists have discovered a molecule in it that has never been found in any other atmosphere. The particle is called cyclopropenylidene, or C3H2, and it’s made of carbon and hydrogen. This simple carbon-based molecule could…
Galaxies in the infant universe were surprisingly mature
Massive galaxies were already much more mature in the early universe than previously expected. This was shown by an international team of astronomers who studied 118 distant galaxies with the Atacama Large Millimeter/submillimeter Array (ALMA). Source: https://phys.org/news/2020-10-galaxies-infant-universe-surprisingly-mature.html…
ALMA shows volcanic impact on Io’s atmosphere
New radio images from the Atacama Large Millimeter/submillimeter Array (ALMA) show for the first time the direct effect of volcanic activity on the atmosphere of Jupiter’s moon Io. Source: https://phys.org/news/2020-10-alma-volcanic-impact-io-atmosphere.html…
Astronomers find evidence planets start to form while infant stars are still growing
Astronomers have found compelling evidence that planets start to form while infant stars are still growing. The high-resolution image obtained with the Atacama Large Millimeter/submillimeter Array (ALMA) shows a young proto-stellar disk with multiple gaps and rings of dust. This new result, just published in Nature, shows the youngest and most detailed example of dust rings acting as cosmic cradles, where…
Pair of massive baby stars swaddled in salty water vapor
Using the Atacama Large Millimeter/submillimeter Array (ALMA), astronomers spotted a pair of massive baby stars growing in salty cosmic soup. Each star is shrouded by a gaseous disk which includes molecules of sodium chloride, commonly known as table salt, and heated water vapor. Analyzing the radio emissions from the salt and water, the team found that the disks are counter rotating….