Thursday, August 8, 2013

Nebular Hypothesis Defied Yet Again

At io9 they reported a newly discovered star labelled GJ 504b.

This old star orbits a newer star GJ 504 at a distance of about 43.5 AU thus ruling out the possibility of any rational explanation for its presence using the nebular hypothesis. She probably moved in once the new star went active.

The assumption that 'planets' form within the disk of gas and dust left around new born stars is unsound. It simply cannot be used to explain the presence of this astronomical object and many others. It cannot be used to explain the formation of a core from within a disc since their is no physical mechanism for dust and gas balls to come together around a new star.

From io9:

"This is among the hardest planets to explain in a traditional planet-formation framework," said Markus Janson through a release. He’s a Hubble postdoctoral fellow at Princeton University in New Jersey. "Its discovery implies that we need to seriously consider alternative formation theories, or perhaps to reassess some of the basic assumptions in the core-accretion theory."

How many more observations will they make before giving up on nebular and solar nebular hypothesis? They should have abandoned these assumptions long ago.

A planet is a star and a star is a planet

--- Jeffrey Wolynski

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