|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
Quasar found 13 billion years away
[[Mod. note -- I apologise to the author and the s.a.r readership
for the week-long delay in posting this article, which arrived at my institution's mail system on Thu, 14 Jun 2007 12:24:43 +0100 but was mistakenly categorized as spam by an over-eager (and *not* user-configurable) spam filter. I just now discovered it when cleaning out the spam folder. I will try to do this more frequently in the future. If it's any consolation, computer support just sent around a message today that they're preparing to switch to a new spam filter... -- jt]] Thus spake Kent Paul Dolan Phillip Helbig---remove CLOTHES to reply: It swallowed the MASS of 1 sun per year, on average. Perhaps mass which had not yet formed stars. Wouldn't you expect the same radiation pressure limits on that as on star formation? You would expect it to form more slowly. Remember if there is any transverse orbital velocity at all matter will tend towards an orbit, irrespective of mass, whether it has been formed into stars or not. On the other hand, supposedly those early stars had mass about 200-300 times the mass of Sol, so the individual "swallowed a star" events could have been more widely spaced. I don't think that makes a lot of difference to the calculation. So long as the cosmic microwave background radiation continues to shine, and it shows no sign of going away, the universe keeps testifying for all to understand: "I had a beginning, and in that beginning, things were different from today". Why is this so hard for some people to accept? I don't see any problem with accepting that there was a big bang, and I would certainly expect a big bang to be a feature of any future model of cosmology. Nonetheless, we should accept that there are very considerable observational problems and even inconsistencies in the standard, concordance, Lamda-CDM, cosmological model, and that, so long as we do not have a unified theory of physics, calculations based only on classical general relativity may be open to challenge in ways which we are unlikely to anticipate in the absence of unification between general relativity and quantum theory. Regards -- Charles Francis moderator sci.physics.foundations. substitute charles for NotI to email |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Quasar found 13 billion years away | Joseph Lazio | Research | 0 | June 10th 07 08:44 AM |
Quasar found 13 billion years away | Oh No | Research | 0 | June 10th 07 08:43 AM |
Quasar found 13 billion years away | jacob navia | Research | 0 | June 10th 07 08:42 AM |
Quasar found 13 billion years away | Phillip Helbig---remove CLOTHES to reply | Research | 0 | June 9th 07 09:41 AM |
Quasar found 13 billion years away | Oh No | Research | 0 | June 9th 07 09:41 AM |