posted on 08/16/2006 5:25 AM by Extropia to
http://www.kurzweilai.net/mindx/frame.html The problems with black holes keeps piling up...
BABY STAR FOUND NEAR GALAXY'S VIOLENT CENTRE,
'The youngest star ever found near the Milky Way's centre is deepening a mystery over how stars could take shape in such a turbulent environment.
Several groups of massive stars have been found within 100 light years of the supermassive black hole at the galaxy's centre. The innermost stars lie in a group less than 3 light years from the black hole and appear to be just 6 million years old, based on the spectra of their light.
But the existence of such young stars so close to the black hole has long puzzled astronomers. That is because calculations suggest that gas clouds at such distances should be torn apart by the black hole's gravity before they ever condense to form stars.
And it appears the stars could not have migrated there from more peaceful birthplaces- the stars are too young to have had time to travel from very far away.
Now, astronomers led by Tom Geballe of Gemini Observatory, Hawaii, have shown that one of the stars in the innermost cluster seems to be younger than the rest, adding to the mystery.
Using the Gemini North telescope to obtain a spectrum of the star, called IRS 8*, they estimate it is only 3.5 million years old.
It also appears to be massive and bright, with an estimated mass 45 times that of the Sun and 350,000 times the sun's brightness. This would make it the youngest and most massive star in the group.
"If IRS 8* is single, its origin is highly uncertain".
But the researchers acknowledge that it is possible that IRS 8* is actually a pair of stars orbiting so close to each other that telescopes cannot resolve the individual stars. In this case, the stars would have exchanged a lot of matter with one another, changing their chemical evolution so they only masquerade as a single young, massive star.
The researchers hope to obtain a more detailed spectrum that could distinguish between the single and binary scenarios'.- New Scientist.
None of these mysterious observations trouble EU. A star could quite easily form near the centre of the Milky Way, because there is no black hole but rather synchotron radiation that is an experimentally-proven outcome of the homopolar-motor generator model of galaxies. No need for black holes, no need for dark matter either.
The idea of assigning age groups to stars (this one is young, that one is old) is entirely fictitious from the ES point-of-view. Stars do not climb up the HR diagram as they burn their reserves of fuel. Rather, they leap from position to position as the current density impinging on their surface changes strength. The fact that some stars have been observed jumping position on the HR digram (IMPOSSIBLE according to mainstream theory but a predictable outcome of ES) speaks volumes.
In the ES model, a star's mass and brightness has nothing to do with age and everything to do with the current density impinging on its surface (well, that affects its brightness, not its mass). The intense plasma discharges at the surface that give rise to starshine also synthesize metals that continually rain down into the star's depths. It is perfectly possible for a star to have the brightness and mass of an old star (according to fusion theory) but also have the metal content of a new star (again, according to prevailing theory) for the simple reason that stars do not age- the Birkland currents powering them simply grow/weaken their output.
I look forward to the next 'mystery' that further strengthen's EU's case.
