radio data analysis & noise - university of torontoastrolab/files/radio_data_analysis.pdf1416...
TRANSCRIPT
![Page 1: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/1.jpg)
Radio Data Analysis & Noise
![Page 2: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/2.jpg)
Announcements
• All classes will now be online through Zoom. • No more observations. – Will provide data.
• Zoom allows for presentations, so we will keep the current presentation schedule.
• Group A (March 23)• Group B and C (March 30)
• Make sure you’ve started on Lab #6, we can’t extend the deadline into exam period!
![Page 3: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/3.jpg)
Taking Observations• 2.3-meter satellite
dish• F-ratio: 0.375• Mount: Alt-Az• Beam Width ~ λ/D
![Page 4: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/4.jpg)
Signal Chain
AirSpy
Computer
GPU
Telescope
Feed
Coax
Low Noise Amplifiers/
FiltersRaw
VoltageStream
ChannelizeIntegrate
Integrated Spectra/Time Stream
![Page 5: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/5.jpg)
Alt Az versus Equatorial
![Page 6: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/6.jpg)
![Page 7: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/7.jpg)
LAB Survey – Kalberla et al. 2005
HI Intensity
![Page 8: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/8.jpg)
On vs Off Galaxy
![Page 9: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/9.jpg)
On vs Off Galaxy
![Page 10: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/10.jpg)
Residuals
![Page 11: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/11.jpg)
Residuals
![Page 12: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/12.jpg)
De-trending Data
![Page 13: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/13.jpg)
De-trending Data
![Page 14: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/14.jpg)
White, Red, Pink, Brown:A Rainbow of Noise
![Page 15: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/15.jpg)
1/f Noise
![Page 16: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/16.jpg)
Stock Markets:P µ f -1.8
Close to Brown
![Page 17: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/17.jpg)
Most Instruments: White + 1/f
![Page 18: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/18.jpg)
Mapping the Galaxy
![Page 19: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/19.jpg)
Mapping the Galaxy
![Page 20: Radio Data Analysis & Noise - University of Torontoastrolab/files/Radio_Data_Analysis.pdf1416 Off-Galaxy 14za 1426 1418 1424 baseline = offgal[ 'data' . figure( ) , .mean (axis—O](https://reader035.vdocuments.mx/reader035/viewer/2022071419/6118628bcacba96ed43c30ed/html5/thumbnails/20.jpg)
Good Luck!