Download presentation

Presentation is loading. Please wait.

Published byNathan Burke Modified over 3 years ago

1
Confusion

2
Confusion limit for 42m 850μm450μm350μm200μm 5σ/40beam confusion limit * (90% sky coverage) 0.5 mJy0.2 mJy0.1 mJy0.02 mJy Time to confusion limit (for point source) 5 minutes2 hours30 hours1000 days * For 5x5 arcmin imager => 400 objects in the FOV

3
THz windows 1mm pwv (band 1-2) 0.2mm pwv 450 350 230 200 um

4
APEX site

5
PWV content (mm) Optical depth at zenith at 225GHz NEFD 850μm NEFD 450μm NEFD 350μm NEFD 200μm 0.2mmτ 225 =0.021.62.44.0~10 0.5mmτ 225 =0.031.83.86.440-100 1mmτ 225 =0.062.07.914>> 2mmτ 225 =0.12.83568>> 4mmτ 225 =0.195.17001600>>

6
Sub-mm colour ratios 200 350 450 850um T=10, 20, 40K 200/450 350/450 450/850

7
Calibration WavelengthsCalibration accuracy Temperature range 850/450um5/10%2-24K 450/350um10%2-7K 450/200um10/25%10-27K

Similar presentations

OK

Year 6 mental test 10 second questions Numbers and number system Numbers and the number system, fractions, decimals, proportion & probability.

Year 6 mental test 10 second questions Numbers and number system Numbers and the number system, fractions, decimals, proportion & probability.

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Ppt on the art of war pdf Ppt on world environment day Ppt on economic order quantity formula Ppt on 9/11 conspiracy theories images Ppt on structure of chromosomes worksheet Ppt on speed control of dc motor using pwm Ppt on upcoming technologies in computer science Ppt on waves tides and ocean currents of the world Ppt on economic order quantity method Ppt on life study of mathematician paul