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New evidence suggests all stars are born in pairs, including our own Sun
Posted on 6/14/17 at 10:48 am
Posted on 6/14/17 at 10:48 am
LINK
quote:
Did our sun have a twin when it was born 4.5 billion years ago?
Almost certainly yes—though not an identical twin. And so did every other sunlike star in the universe, according to a new analysis by a theoretical physicist from UC Berkeley and a radio astronomer from the Smithsonian Astrophysical Observatory at Harvard University.
Many stars have companions, including our nearest neighbor, Alpha Centauri, a triplet system. Astronomers have long sought an explanation. Are binary and triplet star systems born that way? Did one star capture another? Do binary stars sometimes split up and become single stars?
Astronomers have even searched for a companion to our sun, a star dubbed Nemesis because it was supposed to have kicked an asteroid into Earth's orbit that collided with our planet and exterminated the dinosaurs. It has never been found.
The new assertion is based on a radio survey of a giant molecular cloud filled with recently formed stars in the constellation Perseus, and a mathematical model that can explain the Perseus observations only if all sunlike stars are born with a companion.
"We are saying, yes, there probably was a Nemesis, a long time ago," said co-author Steven Stahler, a UC Berkeley research astronomer.
Posted on 6/14/17 at 10:50 am to OMLandshark
I gotta be high to understand anything space related.
Posted on 6/14/17 at 10:50 am to OMLandshark
No offense but why are we wasting money on this stuff?
Posted on 6/14/17 at 10:51 am to OMLandshark
quote:Well, duh....
The new assertion is based on a radio survey of a giant molecular cloud filled with recently formed stars in the constellation Perseus, and a mathematical model that can explain the Perseus observations only if all sunlike stars are born with a companion.
Posted on 6/14/17 at 11:00 am to OMLandshark
Thought this was about sports
Posted on 6/14/17 at 11:03 am to OMLandshark
I first read this as "new evidence suggests all stars are born in paris"
Posted on 6/14/17 at 11:04 am to OMLandshark
quote:
all stars are born in pairs
Confirmed
Posted on 6/14/17 at 11:12 am to OMLandshark
quote:
Are binary and triplet star systems born that way?
It's a choice.
Posted on 6/14/17 at 11:14 am to OMLandshark
quote:
Astronomers have even searched for a companion to our sun
You would think it would be easy to find.
Posted on 6/14/17 at 11:56 am to OMLandshark
I thought it was already a conclusion that most stars in the universe have a companion star or even multiple
This is what shows like the Cosmos and The Universe told me anyway
This is what shows like the Cosmos and The Universe told me anyway
Posted on 6/14/17 at 12:42 pm to OMLandshark
Well that explains the Baldwins
Posted on 6/14/17 at 1:32 pm to OMLandshark
Wasn't there some speciation that Jupiter may be a failed star?
Posted on 6/14/17 at 10:00 pm to OMLandshark
Matthew McConaughey is behind my bookshelf
Posted on 6/14/17 at 10:07 pm to OMLandshark
(no message)
This post was edited on 6/14/17 at 10:08 pm
Posted on 6/14/17 at 10:07 pm to OMLandshark
quote:
Are binary and triplet star systems born that way
I identify as a non binary brown dwarf
Posted on 6/14/17 at 10:58 pm to OMLandshark
quote:
The new assertion is based on a radio survey of a giant molecular cloud filled with recently formed stars in the constellation Perseus,
Lucky, usually only old stars respond to radio surveys.
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