View Full Version : Accelerating universe alternative
MikeBeer
Aug8-09, 01:24 AM
I read an article about 2 weeks ago (another astronomy major sent it to me, but unfortunately I'm having trouble find it, when I talk to him again I'll get the source and post it) that proposed an alternative to the universe expanding. The article stated that the reason we see light redshifted is because time is slowing down, and was, consequentially, "faster" in the past. This result keeps the speed of light constant, but since time is slowing down, the speed of light just appears to be "faster" the farther away we look. I'm only entering my second year as an astronomy/physics double major so my knowledge is limited; does this make sense or is it easily dismissed?
Nabeshin
Aug8-09, 02:59 AM
How could this possibly explain the fact that gravitationally bound systems display no cosmological redshift whereas unbound systems do?
Vanadium 50
Aug8-09, 03:02 AM
It doesn't make any sense to ask this until you can point us to the source. Otherwise it's just "this guy told me".
MikeBeer
Aug8-09, 03:10 AM
I found the source: http://www.dailygalaxy.com/my_weblog/2008/01/scientist-says.html . Admittedly, to my knowledge, this doesn't account for the affect of dark energy on a more "local" scale, such as the rotation of galaxies. Take a look and let me know what you think.
See this thread: http://www.physicsforums.com/showthread.php?t=206075
I'm closing this one, since there is more detail in the other thread, and there is no need for two open at once.
vBulletin® v3.8.7, Copyright ©2000-2012, vBulletin Solutions, Inc.