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    ALMA tagged posts

    ALMA traces History of Water in Planet Formation back to the Interstellar Medium

    March 9, 2023, Categories  Astronomy/Space

    Credit: ALMA (ESO/NAOJ/NRAO), B. Saxton (NRAO/AUI/NSF)

    Scientists studying a nearby protostar have detected the presence of water in its circumstellar disk. The new observations made with the Atacama Large Millimeter/submillimeter Array (ALMA) mark the first detection of water being inherited into a protoplanetary disk without significant changes to its composition. These results further suggest that the water in our Solar System formed billions of years before the Sun. The new observations are published today in Nature.

    V883 Orionis is a protostar located roughly 1,305 light-years from Earth in the constellation Orion...

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    Resurrected Supernova Provides Missing-link

    March 7, 2023, Categories  Astronomy/Space

    An image of the central region of M77 taken by the Hubble space telescope (left). Right panels show the expanded view around SN 2018ivc based on the data taken by ALMA, at ~200 days (upper right) and ~ 1000 days (lower right)
    An image of the central region of M77 taken by the Hubble space telescope (left), in which the position of SN 2018ivc is marked. Right panels show the expanded view around SN 2018ivc based on the data taken by ALMA, at ~200 days (upper right) and ~ 1000 days (lower right), clearly showing that the rebrightening happened at about one year after the SN explosion. Credit: (left) Based on observations made with the NASA/ESA Hubble Space Telescope, and obtained from the Hubble Legacy Archive, which is a collaboration between the Space Telescope Science Institute (STScI/NASA), the Space Telescope European Coordinating Facility (ST-ECF/ESA) and the Canadian Astronomy Data Centre (CADC/NRC/CSA). (right) ALMA (ESO/NAOJ/NRAO), K. Maeda et al.

    Astronomers have discovered a supernova exhibiting un...

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    VLA and ALMA study Jupiter and Io

    December 14, 2022, Categories  Astronomy/Space

    VLA and ALMA study Jupiter and Io
    Detail from a VLA image of Jupiter made in conjunction with observations by the Juno spacecraft in orbit around that planet. Credit: Moeckel, et al., Bill Saxton, NRAO/AUI/NSF

    VLA teams up with Juno spacecraft to study Jupiter’s atmosphere, and ALMA reveals new details about Io’s volcanoes. While the National Science Foundation’s Karl G. Jansky Very Large Array (VLA) and the Atacama Large Millimeter/submillimeter Array (ALMA) frequently reveal important new facts about objects far beyond our own Milky Way Galaxy — at distances of many millions or billions of light-years — they also are vital tools for unraveling much closer mysteries, right here in our own Solar System...

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    ALMA discovers Birth Cry from a Baby Star in the Small Magellanic Cloud

    August 31, 2022, Categories  Astronomy/Space

    Researchers at Osaka Metropolitan University have observed “baby stars” in the Small Magellanic Cloud, having an environment similar to the early universe. Toward one of the baby stars, they found molecular outflow, which has similar properties to those seen in the Milky Way galaxy, giving a new perspective on the birth of stars.

    The heavy elements in interstellar matter significantly impact the mechanism of star formation. In the early universe, the abundance of heavy elements was lower than in the present universe because there was not enough time for nucleosynthesis to produce heavy elements in stars. It has not been well understood how star formation in such an environment differs from present-day star formation.

    An international team led by Professor Toshikazu Onishi, Osaka...

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