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A planet that shouldn't exist

Published by Matt on Thu Aug 27, 2009 1:42 pm via: source
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The ‘most unlikely’ discovery of a new planet which could spiral into its star within the next 500,000 years, has been made by Scottish astronomers.

The find, by an international team including the University of St Andrews, is so bizarre that odds on catching it at this late stage in its life were 1000-1.

The ‘huge new planet’, found orbiting a star 1000 light years away, was discovered by the UK’s WASP project, of which St Andrews is a founding member.

A planet that shouldn't exist

A planet that shouldn't exist

Newly-christened WASP-18b, the planet is so massive and so close to its host star that it is almost certain to spiral inwards to its destruction during the lifetime of the star.

Researchers from St Andrews are currently calculating the rate at which tidal interactions between star and planet will eventually cause the planet’s orbit to decay completely.

St Andrews’ physicist, Professor Andrew Collier Cameron said, “This is another bizarre WASP planet discovery.  The situation is analogous to the way tidal friction is gradually causing the earth’s spin to slow down, and the Moon to spiral away from the earth.

“In this case, however, the spin of the star is slower than the orbit of the planet – so the star should be spinning up, and the planet spiralling in.”

WASP-18b is ten times the mass of Jupiter and orbits its star in less than one Earth-day. The new planet belongs to a now-common class of extrasolar planets known as ‘hot Jupiters’ – massive planets thought to have formed far from their host stars that migrated inwards over time.

The discovery, led by Keele University’s Coel Hellier, suggests that WASP-18’s parent star is about a billion years old – making the likelihood of observing WASP-18b about one in a thousand.

If the planet’s remaining life is as short as predicted, its orbital decay should be measurable within a decade.

Professor Cameron continued, “We don’t yet know how long the planet will survive, because we don’t understand fully how tides operate on the Sun and other stars. It could be half a million years, or half a billion. But if it’s spiralling in quickly, we should be able to see measurable changes in the orbit within ten years.”

3 Comments
bjarnelorenzen
Mathematically Breakthrough
It is now mathematically proven that the decelerating force that affected the Pioneer probes and the accelerating force that had caused many Fly-by anomalies:
1.) Both affect the Earth (and the planets) as well, - and with full force.
2.) Automatically equalize each other (when affecting the planets).
3.) This explains the cause of the WASP-18b mystery and all the probes anomalies as well.

http://www.science27.com/english/the_pioneer_anomaly.html
bjarnelorenzen
New calculations shows that WASP-18b probably not will be stable in its present orbit, but will be thrown away with from the star, with a velocity 3 times higher than the velocity astronomers today believe it “should” approach the star.

This certainly will be a big chock, and something we should be able to confirm within 1 to 2 years.

The idea that also planets are affected of the same accelerating force that space probes (by fly by) support this new theory and make it also possible to understand the cause of the 4 following mysteries:

1.)Why gas-planets can be found very closed to starts ( with their atmosphere intact)
2.)Why huge planets can be found more as 15 billion km. from their mother stars.
3.)How Jupiter’s was created (longer away from the Sun) and what brought it closer to the Sun.
4.)How water come to earth.

Introduction

http://www.science27.com/english/the_pioneer_anomaly.html

Updates:
http://www.science27.com/english/Culcu3.htm
bjarnelorenzen
UPDATE
The conclusion in my previous post was wrong.
It’s not enough only to consider the possible force that can be pass by, - based on the angel velocity as a result of a astronomic bodies rotation (centrifugal force) affecting the planet (WASP-18b).

It’s also necessary calculating the possible energy requirement and compare that to the (rotation) energy available due to the stars rotation..
This shows that even though if enough energy fast “could” be transmitted to Wasp-18b, it’s simply not available.
Wasp-18b will therefore approach the star, and will not only be affected by the tidal effect (expected 2.8 s. per year) but will probably also be effected by too weak rotation energy (+ 2 s per year) Total 4.8 s. per year.

However Wasp-18b should have been dismissed for several hundred million years ago. How could it “hide it self” from the tidal force so long time?
The answer seems to be “written in the stars”.
By comparing with other solar systems we can easy understand the logic. (The site is now updated and much better now) >

http://www.science27.com/english/SolarSystems.htm

Sorry for the confusion…
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