Changeset 4022 in Sophya for trunk/Cosmo/RadioBeam/sensfgnd21cm.tex

Timestamp:

Sep 28, 2011, 5:13:51 PM (14 years ago)

Author:

ansari

Message:

modifs pour pouvoir imposer la moyenne en temp des plans X,Y des cubes lors de l'extraction du signal HI, Reza 28/9/2011

File:

• trunk/Cosmo/RadioBeam/sensfgnd21cm.tex (modified) (2 diffs)

trunk/Cosmo/RadioBeam/sensfgnd21cm.tex

@@ -128 +128 @@
 cm emission. Such a 3D matter distribution map can be used to test the Cosmological model and to constrain the Dark Energy 
 properties or its equation of state. A novel approach, called intensity mapping can be used to map the \HI distribution, 
-using radio interferometers with large instanteneous field of view and waveband.}
+using radio interferometers with large instantaneous field of view and waveband.}
  % aims heading (mandatory)
   { In this paper, we study the sensitivity of different radio interferometer configurations, or multi-beam 
@@ -352 +352 @@
 \end{equation}
 Introducing the \HI mass fraction relative to the total baryon mass $\gHI$, the 
-neutral hydrogen number density relative fluctuations can be written as, and the corresponding
-21 cm emission temperature can be written as:
+neutral hydrogen number density and the corresponding 21 cm emission temperature 
+can be written as a function of \HI relative density fluctuations: 
 \begin{eqnarray}
 \etaHI (\vec{\Theta}, z(\lambda) ) & = & \gHIz \times \Omega_B  \frac{\rho_{crit}}{m_{H}}  \times