Intergalactic speed demon stars bid Milky Way farewell
It takes a lot to kick a star out of a galaxy, but a group of Vanderbilt University astronomers say they’ve found a group of more than 675 stars that look like they’re headed for the exit door. The escape velocity of the Milky Way is a very, very big number: more than two million miles per hour (skipping the stuff on the right …
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Mikly Way?
Weird name for a galaxy...
Nuclear explosion because...you know.
Re: Mikly Way?
What's a Mikly Way?
Oh, about as much as a Heming.
I'll be toddling along now.
Puppeteer homeworld perhaps
Puppeteer are headed that way no?
Re: Puppeteer homeworld perhaps
Damn beat me, the moment I read this I thought, "Pierson's Puppeteers" making a run for it before the galaxy explodes. Of course there's also the possibility they are Pak Ringworlds using controlled sunflares to propel themselves away for the same reason, yes lots of possibilities that don't rely on bog standard orbital physics!
Re: Puppeteer homeworld perhaps
Ha ha, I thought this as well, though it sounds far too risky for the Puppeteers to use a supermassive black hole to achieve escape velocity. Unless of course they weren't inhabiting the system at the time. Though that would mean they had to have added the Fleet of Worlds at a later date...
Didn't somebody work out if the Pak used controlled solar flares to move their sun, it would leave the Ringworld behind?
Re: Puppeteer homeworld perhaps
As well as the Puppeteers, the article put me in mind of "Against A Dark Background."
Re: Puppeteer homeworld perhaps
No the Ringworld wouldn't be left behind, provided the accelleration was very very low. It could be higher though, if they augmented it with the Attitude Jets and higher still if they added a few (lots!) more.
<Flame image as the business end of an Attitude Jet>
I thought we were coming in from Sagitarius
and were being gobbled by the Milky Way, so it's no surprise, others are going the other way. No biggee then.
Re: I thought we were coming in from Sagitarius
There goes the neighborhood...
Re: I thought we were coming in from Sagitarius
Your extrasolar geography seems a bit confused. Sagittarius IS part of the Milky Way; in fact, it's the part nearest the center, where the supermassive black hole Sgr A* lives.
If you look carefully and from the right angle
The stars spell
So long, and thanks for all the fish
Re: If you look carefully and from the right angle
Are you sure it's not : -
"We apologise for the inconvenience !
"....about ten million years."
So, is there any remaining evidence from ten million years ago to answer the important question that remains?
Whether or not the door hit their arses on the way out.
The next question...
Are they actually from the Milky way itself or a merger?
How big are these bad boys? Sun-sized? Supermegamassive? Pea-sized?
>"Their red colour isn’t, as you might guess, from their velocity"
Only someone who thinks that two million miles per hour is a significant fraction of the speed of light could make that mistake.
Kudos to Richard
for, unlike many of his pop-sci colleagues, resisting the temptation to refer to these stars as «rogue stars». Oscar Wilde would have been impressed !...
Henri
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