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    ALMA tagged posts

    ALMA spots most distant Dusty Galaxy Hidden in Plain Sight

    December 13, 2019, Categories  Astronomy/Space

    Credit: NRAO/AUI/NSF, B. Saxton

    Astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have spotted the light of a massive galaxy seen only 970 million years after the Big Bang. This galaxy, called MAMBO-9, is the most distant dusty star-forming galaxy that has ever been observed without the help of a gravitational lens.

    Dusty star-forming galaxies are the most intense stellar nurseries in the universe. They form stars at a rate up to a few thousand times the mass of the Sun per year (the star-forming rate of our Milky Way is just three solar masses per year) and they contain massive amounts of gas and dust...

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    ALMA dives into Black Hole’s ‘Sphere of Influence’

    August 15, 2019, Categories  Astronomy/Space

    Telescope (NASA/ESA); Carnegie-Irvine Galaxy Survey

    ALMA has made the most precise measurements of cold gas swirling around a supermassive black hole – the cosmic behemoth at the center of the giant elliptical galaxy NGC 3258. What happens inside a black hole stays inside a black hole, but what happens inside a black hole’s “sphere of influence” – the innermost region of a galaxy where a black hole’s gravity is the dominant force – is of intense interest to astronomers and can help determine the mass of a black hole as well as its impact on its galactic neighborhood.

    Millimeter/submillimeter Array (ALMA) provide an unprecedented close-up view of a swirling disk of cold interstellar gas rotating around a supermassive black hole...

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    Cool, Nebulous Ring around Milky Way’s Supermassive Black Hole

    June 7, 2019, Categories  Uncategorized

    ALMA image of the disk of cool hydrogen gas flowing around the supermassive black hole at the center of our galaxy. The colors represent the motion of the gas relative to Earth: the red portion is moving away, so the radio waves detected by ALMA are slightly stretched, or shifted, to the ‘redder’ portion of the spectrum; the blue color represents gas moving toward Earth, so the radio waves are slightly scrunched, or shifted, to the ‘bluer’ portion of the spectrum. Crosshairs indicate location of black hole.
    Credit: ALMA (ESO/NAOJ/NRAO), E.M. Murchikova; NRAO/AUI/NSF, S. Dagnello

    New ALMA observations reveal a never-before-seen disk of cool, interstellar gas wrapped around the supermassive black hole at the center of the Milky Way...

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    Liberal Sprinkling of Salt discovered around a Young Star

    February 10, 2019, Categories  Astronomy/Space, Chemistry/Nanotechnology

    Artist impression of Orion Source I, a young, massive star about 1,500 light-years away. New ALMA observations detected a ring of salt — sodium chloride, ordinary table salt — surrounding the star. This is the first detection of salts of any kind associated with a young star. The blue region (about 1/3 the way out from the center of the disk) represents the region where ALMA detected the millimeter-wavelength “glow” from the salts.
    Credit: NRAO/AUI/NSF; S. Dagnello

    A team of astronomers and chemists using the Atacama Large Millimeter/submillimeter Array (ALMA) has detected the chemical fingerprints of sodium chloride (NaCl) and other similar salty compounds emanating from the dusty disk surrounding Orion Source I, a massive, young star in a dusty cloud behind the Orion Nebula.

    “It’...

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