What is the relationship between temperature and redshift?

  • Context: Undergrad 
  • Thread starter Thread starter kuahji
  • Start date Start date
  • Tags Tags
    Redshift Temperature
Click For Summary

Discussion Overview

The discussion revolves around the relationship between temperature and redshift, particularly in the context of the era of recombination and reionization in cosmology. Participants inquire about available data, graphs, and theoretical models related to this relationship.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant expresses curiosity about the availability of graphs or data illustrating the relationship between temperature and redshift or time, referencing published papers and online resources.
  • Another participant questions the feasibility of making definitive measurements of temperature in distant galaxies.
  • A third participant provides a reference to a paper but notes the absence of graphs within it.
  • A later reply specifies interest in the temperature-redshift relationship during the era of recombination and reionization, suggesting that while measurements may be challenging, theoretical models should exist to outline this relationship.
  • One participant states that the temperature of the surface of last scattering is known to be about 3000K.

Areas of Agreement / Disagreement

Participants do not reach a consensus on the availability of theoretical models or data, and the discussion includes questions about measurement feasibility, indicating unresolved aspects of the topic.

Contextual Notes

Participants express uncertainty regarding the existence of theoretical models that outline the temperature-redshift relationship, particularly during specific cosmological eras. There is also a lack of clarity on the methods for measuring temperature in distant galaxies.

kuahji
Messages
390
Reaction score
2
I was just curious as to if there are any graphs or data available to see a more detailed outline of the temperature vs. redshift or temperature vs. time available in any published papers, books, or even online.
 
Space news on Phys.org
How would you make such a definitive measurement in a distant galaxy?
 
See http://arxiv.org/abs/0909.2815" and references therein. But I didn't find graphs.
 
Last edited by a moderator:
Thanks for the replies, I was thinking more in general between the era of recombination & reionization (roughly redshifts between z~1500 & z~10, but more concerned about recombination). Although such measurements would be difficult, I'd think it would be strange not to have any theoretical models, that even briefly outline this.
 
We do know the temperature of the surface of last scattering - about 3000K.
 

Similar threads

  • · Replies 30 ·
2
Replies
30
Views
7K
  • · Replies 3 ·
Replies
3
Views
2K
  • · Replies 5 ·
Replies
5
Views
2K
  • · Replies 1 ·
Replies
1
Views
2K
  • · Replies 7 ·
Replies
7
Views
2K
Replies
9
Views
4K
  • · Replies 55 ·
2
Replies
55
Views
11K
  • · Replies 5 ·
Replies
5
Views
3K
  • · Replies 6 ·
Replies
6
Views
6K
  • · Replies 10 ·
Replies
10
Views
2K