 |
Science Fiction
Dictionary
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
|
 |
Triple Star System Tears Apart Its Planetary Disk
A young triple star system 1,300 light years from earth has been under close scrutiny by scientists at the University of Exeter and Leicester in England.

(This artistic impression (left) shows the inner region of the disc
in the triple-star system GW Orionis)
"There have been a number of theoretical studies on disk-tearing effects, but this is the first direct evidence of effect occurring in a planet-forming disk," study co-author Alison Young of the Universities of Exeter and Leicester in England, told Space.com in an email. "This demonstrates that it is possible for such disks to be warped and broken and raises the possibility that planets could form on highly inclined orbits around multiple star systems."
The warped ring, which is located in the inner part of the GW Orionis system's disk, contains 30 Earth-masses of dust, the researchers also found. This means that the disk contains enough material to form planets.
"It's the best mechanism for forming planets on such extreme orbits, such as been found so far," lead author Stefan Kraus, a professor of astrophysics at the University of Exeter in the UK, told Space.com, referring to the warping observed in GW Orionis. "But … from the planet-detection side, we don't have a way of detecting these planets yet."
While the researchers have yet to detect planets within this system, the groundbreaking study confirms what scientists have suspected for years: that multi-star systems can break their own disks, leaving inclined, misaligned rings around its stars.
(Via Space.com.)
Science fiction readers have long been familiar with this scenario. In his 1933 story The Three Suns of Ev, Golden Age author Edwin K. Sloat describes the plight of a planet threatened by the conflicting pull of three mighty suns!
“What is this problem confronting your people,
Neis?” he asked quietly.
Neis swept his arm about in an expressive arc.
“The three suns of Ev,” he replied dramatically.
“They are tearing our world to pieces !”
Our three suns comprise what you astronomers of earth might call a triple star. They are
Mai, the big crimson sun shining ahead of us there,
Xol, the huge blue sun that is off to the left of us
now- and is hidden by the opaque portion of the ship,
and Thov, the yellow dwarf of a sun that is just coming into view there below our feet.
“Our planet, Ev, hangs spinning in the triangle
formed by the three, and the three suns revolve slowly
around it.
“For untold millions of years the resultant of the
forces of the triangle was in equlibrium. Then the
giant blue Xol, with his superior gravity pulled little
Thov slightly toward him — or so the older school of
scientists claim. At any rate Thov has for same reason
or other gotten out of place and has upset the delicate
balance of our system.
“Ev has begun to swing back and forth a trifle.
Either the conflicting pull of the three suns, or atomic
disintegration set up by the spinning of our planet in
a new and unknown electrical field created by the
changed positions of the three suns — these are the two
principal schools of scientific thought about the phenomenon, and they have nearly caused civil wars both
among my people and among the Thaks — is the cause
of the threatened destruction of our world. Violent
temblors, increasing volcanic activity and enormous,
erratic tides have been hinting at our approaching
doom.”
Unfortunately, the professor was unable to halt the destruction of the Thak world. The conflicting influences of the three suns was too extreme.
I glanced up to behold a great cloud of smoke and dust from the exploding volcanoes spreading across the heavens and slowly obscuring the bloody light of Mai. Underfoot the ground was vibrating as though a terrific diastrophism far down in the bowels of the planet was slowly and relentlessly tearing it to pieces. It is the process or processes by which the earth’s surface is changed, producing ocean beds and mountains and other cosmic features.
Scroll down for more stories in the same category. (Story submitted 5/5/2021)
Follow this kind of news @Technovelgy.
| Email | RSS | Blog It | Stumble | del.icio.us | Digg | Reddit |
Would
you like to contribute a story tip?
It's easy:
Get the URL of the story, and the related sf author, and add
it here.
Comment/Join discussion ( 0 )
Related News Stories -
("
Space Tech
")
Space Traffic Management (STM) Needed Now
'...the spot was a lonely one in an uncharted region, far from the normal lanes of space traffic.' - Arthur William Bernal (1935)
Denmark Joins The 'Zero Debris Charter' To Clean Up Space
'Then their lasers vaporized the smaller satellites...' Arthur C. Clarke, 1978.
Starship Special Edition For Lunar Shuttle
Love those special edition spaceships.
Capturing Asteroids With Nets
'...the meteor caught and halted just as a small boy catches a swift ball in his cap.' V.E. Thiessen, 1947.
Technovelgy (that's tech-novel-gee!)
is devoted to the creative science inventions and ideas of sf authors. Look for
the Invention Category that interests
you, the Glossary, the Invention
Timeline, or see what's New.
|
 |
Science Fiction
Timeline
1600-1899
1900-1939
1940's 1950's
1960's 1970's
1980's 1990's
2000's 2010's
Current News
Tiny Flying Robot Weighs Just One Gram
'Aerostat meant anything that hung in the air. This was an easy trick to pull off nowadays.'
Some Ringworld Configurations Are Stable
'The Ringworld had no horizon. There was no line where the land curved away from the sky.'
TRANSFORM Dynamic Furniture Concept Becomes What You Need
'An adjustment panel outside the door would cause it to extrude various appurtenances in memory plastic...'
Harvard Metamaterials Change Structure Instantly
'Annealed in any shape for a time, and codified, the structure of that shape is retained down to the molecules.'
SnapBot Robots - You Choose Their Legs And They Choose Their Gaits
It's not really polite to tear the limbs off robots.
Dino From Magical Toys An AI Companion To Children
'...the imaginary companions discovered by needful children.'
Humanoid Robots Building Humanoid Robots
''Pardon me, Struthers,' he broke in suddenly... 'haven't you a section of the factory where only robot labor is employed?''
Darpa 'Defiant' Unmanned Autonomous Ship
'There was no wheel, and no steersman!'
What's The Best Way To Ship And Unpack Humanoid Robots?
'I opened the oblong box, where lay the automatons side by side...'
DNA Printed Book By Isaac Asimov Now Available
'They tied the memory to the bloodline and that was their record!'
AI Computer Chip Designs Passeth Human Understanding
'It seems that at one time computers were designed directly by human beings.'
Space Traffic Management (STM) Needed Now
'...the spot was a lonely one in an uncharted region, far from the normal lanes of space traffic.'
Fine-Tune Your Infinite Book The Way You Want It
'I squatted down beside the roller and tried to make some sense out of the knobs. There were thirty-nine of them...'
SpiRobs Soft Spiral Robotic Arm
'Beware the long, flexible, glittering tentacles...'
Holland Factory 3D Printing 500 Tons Of Steak Per Month
'...I don’t understand technical things — tell me, does it ever feel anything?"
Stratospheric Solar Geoengineering From Harvard
'Pina2bo would have to operate full blast for many years to put as much SO2 into the stratosphere as its namesake had done in a few minutes.'
More SF in the News Stories
More Beyond Technovelgy science news stories
|
 |