Yesterday saw the discovery of an extremely massive, extremely bright star in a neighboring galaxy. Today NASA says Hubble has discovered a fast-moving star that's much closer – but getting further away at a very rapid rate. The hypervelocity star being expelled from the center of the Milky Way is traveling away from our galaxy at 1.6 million miles per hour, three times faster than our own sun's orbital velocity in the Milky Way.
How did it get moving so fast? The explanation likely includes a stellar ménage a trois gone horribly wrong some 100 million years ago. A three-star system likely wandered too close to the center of the galaxy and lost one of its members to the black hole that resides there. The momentum of the captured star – and keep in mind, near the center of the galaxy things are really moving – was transferred to the remaining two, bumping them up to warp speed and throwing them violently outward from the center. As they jetted away at high speed, the larger of the two absorbed the other, creating the large, very speedy blue straggler we see today.
Initially there was some uncertainty over the star's origins; its distance from the center of the Milky Way (it's now cruising some 200,000 light years out) suggests it must be 100 million years old. But its mass, nine times that of the sun, and the fact that it's a blue star indicates that it should have only lived 20 million years.
Hubble's ability to measure the star's trajectory confirms its origins at the center of the Milky Way, which means given its color and distance it must be a blue straggler – a star spawned from the merger of two smaller stars. Following the speeding star on its travels could lend researchers some insight into how galaxies form as well as how dark matter influences bodies moving through space outside the Milky Way.
Something about reality.... Starlight, Starbright....
The Nobel laureate phycisist, Professor W. Pauli,
suggested that "acausal connections" exist in the
space-time continuum, and that these connections
appear in our reality as "meaningful coincidences"
of a psycho-physical nature, i.e., a synchronicity
principle, theorized Carl Jung, (1952).
The star Kochab is an orange giant in Ursa Minor,
(little dipper). It is probably a supernova,
(exploded star) and the light-energy of this
explosion has yet to reach earth. Kochab is
some 120 plus light-years distant. It is long
known in mythology, with references dating to
Naturally the Hubble will only spot the changes
after the fact, so, this information comes from
See Google: "numomathematics" for that source:
Soooo, is it traveling faster than the speed of light?
no, the speed of light in mph is 670,616,629. so the speed of light is 418 times faster still.
No its not faster than speed of light. Light travels just under 3 million miles a second. This is 1.6 million miles per hour.
@Rooskies2006: Lol no.
@BraverThought: light travels at around 186,000 miles per second.... in most environments.
@ BraverThought.... *face palm*
Way Whoa! "The momentum of the captured star… was transferred to the remaining two"...?
I guess I am a little fuzzy on Inertia and Momentum, but I would have thought that the particles responsible for these phenomena would have disappeared down the Black Hole with the rest of energy/mass of the third star. Didn’t I read somewhere that the angular momentum of a Black Hole was the constituent momenta of the captured mass?
granted, i'm an idiot, but if it is traveling/has traveled close to the speed of light, could this explain its seeming extended life expectancy? traveling forward in time i mean.
Imagination is the key to Invention
Wouldn't it be great to catch a ride this way via a comet slingshot maneuver around our own sun? Freeze me in a flying iceball and wake me up in time to eject for a soft landing in Eden. *what? :o
My bad I was looking at something else.
and stay out!
So then that star travelled through time...
What I would like to know is whether or not the star has any planets circling it or if it is just a lone traveller.
In this scenario, would any planets even have a chance of remaining in its solar system?
The forces must be tremendous.
a hint of 5th element?
@ 1.6 million MPH, the star is travelling at about 4% c, which is not fast enough for any huge amounts of time dilation to occur. If it were traveling at c, to the star, covering light years would almost instaneous. But at a little over 4%, the star wont be noticing much.
I bet ya, I don't know for sure, but that star must have been up to no good to be running away like that.
I call dibs on the terms "Poop Power" and "Turd Torque"
have they calculated its destination or impact with other heavenly bodies? Not enough info to post
Sorry guys, that was me playing a little galactic baseball. Good news is, it's not gonna hit your windshield.
Don't you mean at c it would traveling lightyears in... years? :)
I assume the momentum transfer would be a sling shot effect of gravity as one body is ripped away by the black hole.I have been wrong before though.