Stars aligned: An atlas of binary stars

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  • Опубликовано: 1 окт 2024
  • The latest star data from the Gaia space observatory has for the first time allowed astronomers to generate a massive 3D atlas of widely separated binary stars within about 3,000 light years of Earth - 1.3 million of them.
    The one-of-a-kind atlas, created by Kareem El-Badry, an astrophysics Ph.D. student from the University of California, Berkeley, should be a boon for those who study binary stars - which make up at least half of all sunlike stars - and white dwarfs, exoplanets and stellar evolution, in general. Before Gaia, the last compilation of nearby binary stars, assembled using data from the now-defunct Hipparcos satellite, included about 200 likely pairs.
    For full story, visit: news.berkeley.edu
    news.berkeley....
    Video animation: Jackie Faherity, AMNH, and data by Kareem El-Badry
    Edited by Roxanne Makasdjian
    music: Glacier by Patrick Patrikios
    news.berkeley.edu/
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Комментарии • 9

  • @simonshack1
    @simonshack1 2 года назад +2

    In my TYCHOS model, the Sun and Mars are binary companions - much like Sirius A and Sirius B which, as it happens, are proportionally identical to Sun and Mars). In fact, we now know that the vast majority (if not all) of the stars are 'locked' in binary systems.

  • @colineckstrand271
    @colineckstrand271 3 года назад +2

    One problem mates, binary stars rotate around each other, they are not just gavitationally locked together.

    • @sc0repio662
      @sc0repio662 3 года назад +2

      Yeah... I noticed the error immediately & I'm just a hobbyist Astronomer.

    • @scisuperheroes
      @scisuperheroes 3 года назад +1

      All those pairs floating, not rotating, odd. Will have to read the paper

    • @tma-1701
      @tma-1701 3 года назад

      Timescales tho. In certain gravitational conditions, may rotation be much slower than revolution?

    • @colineckstrand271
      @colineckstrand271 3 года назад +1

      @@tma-1701 Yes but they depicted most binary stars just gliding along side by side, most binary stars obit each other and the graphic did not show that.

    • @sc0repio662
      @sc0repio662 3 года назад

      @@tma-1701 I didn't see a single pair in rotation ; ALL the pairs, even the ones in close proximity to each other, are travelling in perfect parallel trajectories.

  • @Achill101
    @Achill101 3 года назад

    Why did the video end up in a kind of petri dish with particles wobbling in Brownian motion?

  • @CrandMackerel
    @CrandMackerel 3 года назад +1

    I have a feeling that this video, while full of neato production value, isn't scientifically accurate.