7th April 2010
from DarkStar1 Website
Dark Star-like objects are starting to be discovered, in parts of the Milky Way thick with brown dwarfs.
One of these newly discovered companion objects, of between 5-10 Jupiter masses, lies in orbit around a brown dwarf at an equivalent distance to our Sun's gas giants. Given that the parent star is only a brown dwarf star itself, this is a considerable distance - well beyond the parent's initial proto-planetary disk.
The companion sub-brown dwarf has also formed in less than one million years - a staggeringly short period of time. The implications of this are huge, at least for the theory on this website.
It means that these large companion objects can form at a very wide distance from their parents, using unexpected planet-forming mechanisms.
I've often discussed the likelihood that a Dark Star in our own solar system would have formed as part of a cluster in the very early days of the Sun's own birth.
In such a scenario, we simply don't need to consider how a part of the Sun's protoplanetary disk needs to extend out to comet distances to accrete enough matter for a gas giant/sub-brown dwarf to form. A speckled cluster of adjacent star-forming material could create a wide-binary sub-brown dwarf at a great distance.
Possibly more than one!
This latest discovery adds weight to
this concept, and opens up the potential for the discovery of a Dark
Star object orbiting our own sun.