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main:grb_observing [2014/11/06 01:46]
bruce 		main:grb_observing [2021/01/12 00:50] (current)
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 ====== Observing GRBs ====== ====== Observing GRBs ======
 +----
  
  
- +====== Space Backgrounds & Environment====== 
-====== Space Backgrounds ====== +----
-====== Space Environment ====== +
  
  
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 +===== Diffuse X-ray Background =====
  
-====== Cosmic Backgrounds ====== +===== Diffuse UV background =====
- +
-===== X-ray ===== +
- +
-===== UV background =====+
  
  
  is given in [[Media:1987AJ_____94__876O.pdf]]  is given in [[Media:1987AJ_____94__876O.pdf]]
  
-===== Optical-IR background =====+===== Diffuse Optical-IR background =====
  
 My favorite plot of space (zodiacal) background opt-NIR is the one by Michael Lampton (though I think aldering's analysis below is better:  My favorite plot of space (zodiacal) background opt-NIR is the one by Michael Lampton (though I think aldering's analysis below is better: 
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 </ul> </ul>
 </ul> </ul>
- 
  
  
  
 ====== X-ray Observations ====== ====== X-ray Observations ======
- +----
  
  
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-====== X-ray Energy Band Selection ======+===== X-ray Energy Band Selection =====
  
  
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-======= How Far to Integrate Down in Energy ======++==== How Far to Integrate Down in Energy ====
  
  
-======= How far to integrate up in energy  =======+ 
 +==== How far to integrate up in energy  ====
  
  
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 Note that the SGRB are still rising at the highest energy while the LGRB is flattening. Note that the SGRB are still rising at the highest energy while the LGRB is flattening.
  
 +
 +----
 +
 +===== What about integrating down? =====
 +  
 +
 +How far down should one go in energy before this is not favorable increase in S/N? 
 +
 +{{ :main:observing_xbands:grb_intgd_down.png?direct&600 |}}  this from singu!~/projects/xethreshhi2lo.pro
 +
 +{{ :main:observing_xbands:grb_snr_intgd_down.png?direct&600 |}}
 +
 +So, its quite clear that you still get photons for BOTH spectra in this idealized picture.  I think even HETE got like one SGRB (don't quote me). 
  
  
  
 ====== Optical Observations ====== ====== Optical Observations ======
 +----
  
-====== Lya Forest Spectroscopy ======+ 
 +===== Lya Forest Spectroscopy =====
    
  
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 http://arxiv.org/abs/1309.1477v1      Observational Requirements for Lyman-alpha Forest Tomographic Mapping of Large-Scale Structure at z ~ 2 http://arxiv.org/abs/1309.1477v1      Observational Requirements for Lyman-alpha Forest Tomographic Mapping of Large-Scale Structure at z ~ 2
- 
- 
  
  
main/grb_observing.1415238363.txt.gz · Last modified: 2021/01/12 00:50 (external edit)

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