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quad [2026/08/18 11:15] – dparadisquad [2026/08/18 12:28] (current) – dparadis
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 QUaD is a bolometer-based polarimeter optimized for CMB polarization measurements. QUaD is a 2.6 m Cassegrain radio telescope on the mount originally constructed for the DASI experiment.  QUaD is a bolometer-based polarimeter optimized for CMB polarization measurements. QUaD is a 2.6 m Cassegrain radio telescope on the mount originally constructed for the DASI experiment. 
 Two portions of the Galactic plane have been observed in the Galactic longitudes range 240° < l < 295° and 315° < l < 5°, for latitudes -4<b<+4°, corresponding to 800 square degree, at 100 and 150 GHz.  Two portions of the Galactic plane have been observed in the Galactic longitudes range 240° < l < 295° and 315° < l < 5°, for latitudes -4<b<+4°, corresponding to 800 square degree, at 100 and 150 GHz. 
-The angular resolution of the surveys is 5′ and 3.5′ at 100 and 150 GHz, respectively, in Stokes I, Q and U parameters. Units of the Healpix maps are MJy/sr.+ 
 +The angular resolution of the surveys is 5′ and 3.5′ at 100 and 150 GHz, respectively, in Stokes I, Q and U parameters. Units of the HEALPix maps are MJy/sr. 
 + 
 +HEALPix maps made by D. Paradis.  
 + 
 +=== Reference === 
 +  * 'The QUaD Galactic Plane Survey 1: Maps And Analysis of Diffuse Emission' by T. Culverhouse et al., 2010, ApJ, 722, 1057,  https://ui.adsabs.harvard.edu/abs/2010ApJ...722.1057C/abstract 
 + 
 +=== Maps=== 
 + 
 +__100 GHz__: \\ 
 +- Intensity: @@ENV:CADE_FILES_URL:/documents/Ancillary/QUaD/QUaD_I_100GHz_1_2048.fits|QUaD_I_100GHz_1_2048.fits@@ 
 + 
 +- Stokes U: @@ENV:CADE_FILES_URL:/documents/Ancillary/QUaD/QUaD_U_100GHz_1_2048.fits|QUaD_U_100GHz_1_2048.fits@@ 
 + 
 +- Stokes Q: @@ENV:CADE_FILES_URL:/documents/Ancillary/QUaD/QUaD_Q_100GHz_1_2048.fits|QUaD_Q_100GHz_1_2048.fits@@ 
 + 
 +__150 GHz__: \\ 
 +- Intensity: @@ENV:CADE_FILES_URL:/documents/Ancillary/QUaD/QUaD_I_150GHz_1_4096.fits|QUaD_I_150GHz_1_4096.fits@@ 
 + 
 +- Stokes U: @@ENV:CADE_FILES_URL:/documents/Ancillary/QUaD/QUaD_U_150GHz_1_4096.fits|QUaD_U_150GHz_1_4096.fits@@ 
 + 
 +- Stokes Q: @@ENV:CADE_FILES_URL:/documents/Ancillary/QUaD/QUaD_Q_150GHz_1_4096.fits|QUaD_Q_150GHz_1_4096.fits@@ 
 + 
 +=== Original WCS Data === 
 + 
 +https://lambda.gsfc.nasa.gov/product/quad/quad_dec_2010_get.html 
 + 
 +=== Project Website === 
 +https://web.stanford.edu/~schurch/quad_instrument.html 
 +