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    HL Tauri tagged posts

    Tracking the Birth of a ‘Super-Earth’

    July 12, 2017, Categories  Astronomy/Space

    The protoplanetary disk around HL Tauri, a million-year-old sunlike star located approximately 450 light-years from Earth in the constellation of Taurus, dwarfs our solar system (right). Taken by the ALMA array, this image reveals a series of concentric and bright rings, separated by gaps — features astronomers have struggled to explain until now. (Credit: ALMA (ESO/NAOJ/NRAO))

    The protoplanetary disk around HL Tauri, a million-year-old sunlike star located approximately 450 light-years from Earth in the constellation of Taurus, dwarfs our solar system (right). Taken by the ALMA array, this image reveals a series of concentric and bright rings, separated by gaps — features astronomers have struggled to explain until now. (Credit: ALMA (ESO/NAOJ/NRAO))

     
    ‘Synthetic observations’ simulating nascent planetary systems could help explain a puzzle that has vexed astronomers for a long time...
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    Footprints of Baby Planets in a Gas Disk

    May 26, 2016, Categories  Astronomy/Space

    This is an ALMA image of the dust disk around HL Tauri. Credit: ALMA (ESO/NAOJ/NRAO)

    This is an ALMA image of the dust disk around HL Tauri. Credit: ALMA (ESO/NAOJ/NRAO)

    A new analysis of ALMA data for young star HL Tauri provides yet more firm evidence of baby planets around the star. 2 gaps in the gas disk around HL Tauri were uncovered. The locations of these gaps in the gas match the locations of gaps in the dust found in the ALMA high resolution image taken in 2014. This discovery supports the idea that planets form in much shorter timescales than previously thought and prompts a reconsideration of alternative planet formation scenarios.

    In November 2014, ALMA released a startling image of HL Tauri and its dust disk. This image, the sharpest ever taken for this kind of object, clearly depicts several gaps in the dust disk around the star...

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