☼ Apollinaris Patera ☼ by MagikUnicorn
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Description
Bryce Space for today...
SPACE - NEWS
Planets Living on the Edge
Some stars have it tough when it comes to raising planets. A new image from NASA's Spitzer Space Telescope shows one unlucky lot of stars, born into a dangerous neighborhood. The stars themselves are safe, but the material surrounding them -- the dusty bits of what might have been future planets -- can be seen blowing off into space.
The hazard in this particular nook of space is a group of behemoth stars. Radiation and winds from the massive stars are wiping smaller, sun-like stars clean of their planet-making material.
"We are seeing the effects that massive stars have on smaller stars that are trying to form planets," said Xavier Koenig, lead author of a paper about the discovery, recently published in the Astrophysical Journal Letters. "These stars may or may not go on to form small, inner planets like the Earth, but it's probable that outer planets like Uranus and Neptune would never come to be."
Spitzer Picture
Many stars and planets do in fact grow up and survive the harsh environments of massive stars. Some astronomers say our middle-aged sun, though now sitting in a tranquil patch of space, once resided in a raucous, massive star-forming cloud. Over time, stars in these turbulent regions disperse and spread out, spending their later years in relative solitude.
The new Spitzer observations illustrate just how nasty these massive star-forming regions can be. It shows a portion of an active star-forming nebula called W5, located about 6,500 light-years away in the constellation Cassiopeia. Radiation and winds from a hub of four stars, each about 20 times as massive as our sun, are stripping the planet-forming material right off of three young, sun-like stars about one light-year away.
The sun-like stars are about two to three million years old -- the age when stars are thought to begin forming planets out of disks of gas and dust that swirl around them. The dust from these disks is visible in the Spitzer image as comet-like tails pointing away from the destructive massive stars.
Spitzer, an infrared observatory, can see this dust from the disks because the dust is warm and glows with infrared light. Since the telescope was launched more than five years ago, it has identified a handful of disks being blown from their stars.
"On astronomical timescales, these events are probably fairly short-lived," said Koenig. "It probably takes about one million years for the disks to completely disappear."
Koenig said that the dust being swiped away is from the outer portion of the stars' planet-forming disks -- around where Uranus and Neptune would orbit in our solar system and beyond. That means it's possible that any baby Earths forming in these faraway systems would grow up safely. Outer planets, on the other hand, might be nothing more than dust in the wind.
Thanks
Magik
Comments (91)
SUper image !!
Fantastic space composition.Wonderful work.
Superbe travail mon ami et jolies explications, bravo!
Excellent sci-fi.creation MU,looks fantastic**************
awesome... and very creative !!
Really fantastic work Real
wow! that is an amazing work! simply wonderful and impressive! ;o)
Awesome looking planetscape Magik, looks great!
Verry beautiful image!
Very interisting and beautiful work !!
This is an amazing image. Love it and a fave... Excellent...
Beau travail :)
very clever piece of text/news reporting, nice job! The image is wonderful, I especially like the almost mother-board-like patterns on the surface of the planet, like it's inhabited by circuit boards. You weave these different elements very nicely in your art, I've seen; and the hues are just right too. Your frame even picks up the hues of the planet and its atmosphere; and the stars themselves are clear and luminous. Nice job all around, word & image.
Marvelous work and a really insightful narration to the workings of star systems.
superbe création magik! Mais avec toutes vos explications j'ai le cerveau en ébullition!!!...je dormirais moins c.n ce soir mais avec le cerveau grillé!!merçi!!;)
Great depiction of this event. Appreciate the time you spent to explain this phenomena.
Very cool work my friend!!!Bravo!!!
This is nice!
exceptionnel Magik!
Spectacular spacescape!!!
very well work and many thanks for explain.
Superbe planète !! j'adore !! 5+
Farout MU!
Awesome rendering and I love the detailed background you provided.
Excellent work!
Exceptional work! :)
I think your Sci-fi scenes are stupendous! This one is breathtaking! Awesome work MU!!
Fantastic.....Is that because of All the so called Dark matter which is in everything more that Scientists and Astronomers knew?????
WOW... this is just beautiful MU...the scale alone is entrancing
Ben mince, je viens de découvrir que tu étais francophone et québéquois!