Re: Fully formed 8-11 billion year old galaxies observed.

From: Sam Wormley (swormley1_at_mchsi.com)
Date: 07/08/04 

Date: Thu, 08 Jul 2004 15:07:43 GMT

Jon Kickerston wrote:
>
> "Sam Wormley" <swormley1@mchsi.com> wrote in message
> news:40ECB71E.324ABC8D@mchsi.com...
> > Etok wrote:
> > >
> > > Mature galaxies are found 8-11 billion years ago (or 8-11 billion ly
> > > distant, take your pick).
> > >
> > > http://www.spaceref.com/news/viewpr.html?pid=14531
> > >
> > > Hope this isn't off topic.
> > >
> >
> > Ref: http://www.astro.ucla.edu/~wright/cosmolog.htm#News
> > From Ned Wright's Cosmological Tutorial
> >
> > Most Distant Object Record Smashed
> >
> > 1 Mar 2004 - Pello et al. have found a galaxy much further away from us
> > than any previously known. The evidence comes from a single line
> > observed in the infrared which imples a redshift of z = 10. The source
> > is seen magnified by a cluster of galaxies, Abell 1935, acting as a
> > gravitational lens, and the source location is where sources with 9 < z
> > < 11 should be very highly magnified. The colors of the source are also
> > very consistent with z = 10. The technical paper and the press release
> > both give pictures and spectra of this object. My Cosmology Calculator
> > gives for z = 10 and the WMAP cosmic parameters (Ho=71, OmegaM=0.27 in
> > a flat Universe) and age of the Universe of 0.48 Gyr at the time the
> > light we see was emitted, a light travel time of 13.18 Gyr, and a
> > current distance of 31.5 billion light years. This distance is much
> > greater than the speed of light times the light travel time because the
> > Universe has expanded by factors between 1 and 1+z=11 since the light
> > did its traveling.
>
> Nearly 32 billion l.y.? Wow! I guess that challenges the current age of
> the universe a bit.
>

  That can be misleading... the age is still a young 13.7 Gyr... by the
  light left the galaxy 13.18 Gyr ago when thing were a lot closer.