Difference between revisions of "SZastro"

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(''Nick writing of behalf of Simone, Emmanuel, and David'')
 
(''Nick writing of behalf of Simone, Emmanuel, and David'')
  
We forecasted S/N and constraints on feedback and non-thermal pressure support for samples of LRGs and QSOs using combined tSZ and kSZ observations and a DESI-like spectroscopic. Here we use the the numbers density of objects quoted in [https://arxiv.org/abs/1308.0847 | Table 3] of the DESI white paper.
+
We forecasted S/N and constraints on feedback and non-thermal pressure support for samples of LRGs and QSOs using combined tSZ and kSZ observations and a DESI-like spectroscopic survey. Here we use the the numbers density of objects quoted in [https://arxiv.org/abs/1308.0847 | Table 3] of the DESI white paper.
  
'''LRGs'''
+
'''LRGs''' (2e13 Msol)
  
[[image SN_LRG.png width="500px"]]
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[[File:SN_LRG.png|500px]]
[[image Pars_LRG.png width="500px"]]
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[[File:Pars_LRG.png|500px]]
  
 
Epsilon is the feedback efficiency, and alpha is the normalization of the non-thermal pressure support. Also, Blue = 4m, Green = 5m, Red = 6m.
 
Epsilon is the feedback efficiency, and alpha is the normalization of the non-thermal pressure support. Also, Blue = 4m, Green = 5m, Red = 6m.
 +
The orange box illustrates a 3% constraint on these parameters.
  
'''QSOs'''
+
'''QSOs''' (4e12 Msol)
  
[[image SN_QSO.png width="500px"]]
+
[[File:SN_QSO.png|500px]]
[[image Pars_QSO.png width="500px"]]
+
[[File:Pars_QSO.png|500px]]
 +
 
 +
The orange box illustrates a 25% constraint on these parameters.
  
 
To Do:
 
To Do:
Looking into well motivated science requirements for the S4-CDT, which will also guide our SO design. One idea is to couple these constraints to the baryonic effects on p(k), this is k dependent but we should be able to decide on a k range and accuracy to which we need to constrain feedback etc. Any other ideas would be very helpful.
+
Looking into well motivated science requirements for the S4-CDT. One idea is to couple these constraints to the baryonic effects on p(k), this is k dependent but we should be able to decide on a k range and accuracy to which we need to constrain feedback etc. Any other ideas would be very helpful.

Latest revision as of 11:02, 8 March 2017

Background discussion

(Nick writing of behalf of Simone, Emmanuel, and David)

We forecasted S/N and constraints on feedback and non-thermal pressure support for samples of LRGs and QSOs using combined tSZ and kSZ observations and a DESI-like spectroscopic survey. Here we use the the numbers density of objects quoted in | Table 3 of the DESI white paper.

LRGs (2e13 Msol)

SN LRG.png Pars LRG.png

Epsilon is the feedback efficiency, and alpha is the normalization of the non-thermal pressure support. Also, Blue = 4m, Green = 5m, Red = 6m. The orange box illustrates a 3% constraint on these parameters.

QSOs (4e12 Msol)

SN QSO.png Pars QSO.png

The orange box illustrates a 25% constraint on these parameters.

To Do: Looking into well motivated science requirements for the S4-CDT. One idea is to couple these constraints to the baryonic effects on p(k), this is k dependent but we should be able to decide on a k range and accuracy to which we need to constrain feedback etc. Any other ideas would be very helpful.