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ALMA detectability of [CII]@z=6.4<br />
• N=50, Tsys = 125K (PWV = 0.91mm or tau220 =<br />
0.052; typical winter condition in Atacama), dv = 50<br />
km/s, dual pol.<br />
24 sec (!) for 1σ = 2.54 mJy/beam (but ignoring<br />
continuum)<br />
• cf. ALMA calculator recommends Tsys = 168 K (PWV =<br />
2.75mm or tau220 = 0.14; typical Mauna-Kea like <br />
condition) for this frequency (better atmospheric<br />
conditions will be used for short wavelengths<br />
observing programs)<br />
45 sec<br />
http://www.eso.org/sci/facilities/alma/observing/tools/etc/<br />
Version: Dec. 17, 2010
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