Gas Giant Exoplanet Can Has Moons?

A gas giant exoplanet is believed to be circling binary star HD 176051. Both stars are similar in size to our own sun (1.07 and .71 solar masses); although it is not known which star the exoplanet orbits, it appears to be within the habitable zone of the star system.


( Planetary System around the Star HD 176051 )

Space experts generally agree that the best way to explain how planets are formed in general is by slow accretion of material in the protoplanetary disk surrounding new stars.

These disks are basically fields of debris, made up of cosmic dust and gas, which are left behind after a star is born inside a nebula. The debris begins to spin around the giant fireball, and eventually clump together to form planets and other space objects over millions of years.

But such a formation process would have been impossible around HR 7162, experts say. This location would have made it impossible for the accretion disk to coalesce into something even remotely similar to a planet.

Gravitational forces are strong enough near a regular star, but a binary is not only producing immense pulls, but also turbulences and interplays that would have certainly ripped through a surrounding protoplanetary disk with ease.

But what the finding does support is an alternative theory on planetary formation, which holds that denser regions in the disks form the space bodies a lot faster, by collapsing under their own weight, under their own gravitational pull.

The investigators behind the new study also determined that the second method would produce a large exoplanet within only a few thousand years.

Science fiction writers did not invent the idea of inhabitable moons. In 1634, just twenty-five years after Galileo turned his new telescope on the moon, and announced its imperfect (and thus more Earth-like) surface, Englishman John Wilkins published his first scholarly work, entitled The Discovery of a World in the Moone: Or A Discourse Tending To Prove that 'tis probable there may be another habitable World in that Planet. SF writers, however, certainly popularized the idea.

Depending on your fan preference, you might be thinking of Pandora, the gas giant exoplanet moon in the recent blockbuster Avatar.


(Avatar's moon Pandora)

Or, you might be thinking the gas giant exoplanet forest moon Endor from Star Wars.


(Avatar's moon Pandora)

Via Softpedia.

Scroll down for more stories in the same category. (Story submitted 10/24/2010)

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 ")

Negative Matter Fluid Theorized In New Paper
'Of course, being negative matter, when you push it, it comes toward you..' - Robert Forward, 1992.

Grow Structures Upon Planetfall - Myco-Architecture
'They'll also start pulling in gases and liquids from the local atmosphere...' - Greg Bear, 2015.

A Look Back At Apollo's Emergency Escape Vehicle
'A simple mechanism... it drove the iron ball through space like a ship.' - Jack Williamson, 1933.

Amazing Kepler Space Telescope Decommissioned By NASA
'Thus it came about that the search for a planetiferous sun... was not unduly prolonged...' - Doc Smith, 1934.

 

Google
  Web TechNovelgy.com   

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.

 

 

 

 

 

Current News

Wound Healing With Wearable Nanogenerators
'... forcing the energy transfer which allowed him to ... erase the other internal-external damage.'

Flying Dragon Robot Transforms In Mid-Air
Terrific prototype video.

Negative Matter Fluid Theorized In New Paper
'Of course, being negative matter, when you push it, it comes toward you..'

Grow Structures Upon Planetfall - Myco-Architecture
'They'll also start pulling in gases and liquids from the local atmosphere...'

MXene Hydrogel Skin For Robots Flexes And Senses
'The plastex swam and whirled like boiling toothpaste...'

EXPLORER, The First Total-Body Scanner
'The object is built up of an infinite series of plane layers, at the focus of the ray...'

UK Police AI To Stop Criminals Before They Strike
'... the computing mechanisms that studied and restructured the incoming material.'

Sonitus Audio Interface Positioned Beyond The Noise
'... an instrument having relatively small bit pieces adapted to be gripped between the teeth.'

Volvo's Self-Driving Mining Trucks
'A procession of automatic ore carts was racing over the bleak slag'

Audi Pop.Up Autonomous Electric Flying Car
'The cab was an egg-shaped bubble of light metals and plastics...'

Music Not Impossible (MNI) Vibrotactile Wearable Experience
Don't you want to experience the 'feely' effects?

Chinese Face Recognition Mistakes Bus Ad For Jaywalker
'... the imprint of her image on the telephoto cell.'

A Look Back At Apollo's Emergency Escape Vehicle
'A simple mechanism... it drove the iron ball through space like a ship.'

InMotion Glide 3 Electric Unicycle For The Last Mile
'...gyro-stabilized on a single wheel.'

China's Social Credit System - A Facebook-1984 Mashup
'Prestige, face, mana, repute, glory: the Sirenese word is strakh.'

Musk Declares Tesla Supercharger Capacity Will Double By Next Year
'Recharge the batteries... in almost every town and village...'

More SF in the News Stories

More Beyond Technovelgy science news stories

Home | Glossary | Invention Timeline | Category | New | Contact Us | FAQ | Advertise |
Technovelgy.com - where science meets fiction™

Copyright© Technovelgy LLC; all rights reserved.