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
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Video animation: Jackie Faherity, AMNH, and data by Kareem El-Badry
Edited by Roxanne Makasdjian
music: Glacier by Patrick Patrikios
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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.
One problem mates, binary stars rotate around each other, they are not just gavitationally locked together.
Yeah... I noticed the error immediately & I'm just a hobbyist Astronomer.
All those pairs floating, not rotating, odd. Will have to read the paper
Timescales tho. In certain gravitational conditions, may rotation be much slower than revolution?
@@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.
@@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.
Why did the video end up in a kind of petri dish with particles wobbling in Brownian motion?
I have a feeling that this video, while full of neato production value, isn't scientifically accurate.