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Star Moving at Lighting Speed - 2 Million Miles an Hour

Dragon
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Post by Dragon Sat Aug 07, 2021 4:47 am

A unique astronomical discovery was recently reported after a star was spotted speeding, seemingly almost leaving the galaxy.

According to assistant professor of astronomy JJ Hermes, from Boston University College of Arts and Science, the speeding star moves so fast at two million miles an hour.

Former Boston University student and lab scientist Odelia Putterman added, to experience partial explosion and still survive "is very cool and unique," and it's just in the past couple of years that they have started this kind of star could ever exist.

The star officially named LP 40-365 is seen circling and moving out of the Milky Way.

The researchers noted such a movement based on the star's brightness patterns.


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Star Moving at Lighting Speed - 2 Million Miles an Hour 334pu7m
Dragon
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Post by Dragon Sat Aug 07, 2021 4:49 am

Star Moving at Lighting Speed - 2 Million Miles an Hour Science-times-star-moving-at-lighting-speed-spotted-scientists-say-its-so-fast-that-it-nearly-leaves-the-galaxy-at-2-million-miles-an-hour
Photo: Wikimedia Commons

Supernova is a cosmic explosion when a white dwarf is getting too large to support itself and releasing a great amount of energy.


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Star Moving at Lighting Speed - 2 Million Miles an Hour 334pu7m
Dragon
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Post by Dragon Sat Aug 07, 2021 4:51 am



LP 40-365: An unusual white dwarf star may be a surviving remnant of a subluminous Type Ia supernova

A team of astronomers led by Stephane Vennes at the Astronomical Institute in the Czech Republic have identified what could be a stellar shrapnel thrown away millions of years ago from the site of an ancient, peculiar supernova explosion.

This animation shows how astronomers imagine the story of LP40-365 developed over the past 30 million years, condensed in half a minute: The white dwarf accretes material from a close companion until it exceeds its mass limit and explodes as a supernova.

The imperfect explosion shoots out a shrapnel of unburnt core material towards the Milky Way galaxy.

Finally, the shrapnel is observed as a fast moving, very low mass, peculiar white dwarf zooming past the solar neighborhood.

The closest approach to the Sun was about 500,000 years ago at a distance of merely 300 parsecs.


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Star Moving at Lighting Speed - 2 Million Miles an Hour 334pu7m

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