M100 Band3 Combine 4.2.2: Difference between revisions
From CASA Guides
Jump to navigationJump to search
No edit summary |
No edit summary |
||
| Line 5: | Line 5: | ||
<math> | <math> | ||
\frac{2k}{A_{eff}} | \sigma_{ij}=\frac{2k}{A_{eff}} | ||
</math> | </math> | ||
<math> | <math> | ||
Revision as of 15:07, 17 June 2013
Overview
rms noise in a single channel for a single visibility is:
[math]\displaystyle{
\sigma_{ij}=\frac{2k}{A_{eff}}
}[/math]
[math]\displaystyle{
\sqrt{\frac{T_{sys,i} T_{sys,j}}{\Delta\nu_{ch} t_{ij}}}
}[/math]
Where k is Boltzmann's constant, A_eff is the effective antenna area, delta_nu is the channel width, and t_{ij} is the integration time per visibility.
