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drao [2017/12/13 15:25] Déborah Paradis |
drao [2023/04/11 15:21] (current) Déborah Paradis |
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| ====== DRAO 22 MHz radio continuum/ 1.4 GHz polarization ====== | ====== DRAO 22 MHz radio continuum/ 1.4 GHz polarization ====== | ||
| + | |||
| + | /* AH: 25/08/18 | ||
| + | should we separate this page into two separate surveys (22MHz, 1.4GHz polar)? | ||
| + | */ | ||
| This 22 MHz radio continuum survey covers ~73% of the sky between declination -28° and +80°, derived from observations with the radiotelescope at the Dominion Radio Astrophyical Observatory (DRAO), at a resolution of 1.1°x1.7°secant(zenith angle). Units of the map are ''KTB''. | This 22 MHz radio continuum survey covers ~73% of the sky between declination -28° and +80°, derived from observations with the radiotelescope at the Dominion Radio Astrophyical Observatory (DRAO), at a resolution of 1.1°x1.7°secant(zenith angle). Units of the map are ''KTB''. | ||
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| The Q and U maps are the combination of the 26-m DRAO (Dominion Radio Astrophysical Observatory) and the 30-m Villa Elisa polarization survey, at 1.4 GHz (21 cm), with an angular resolution of 36'. Units of the maps are ''mKTB''. | The Q and U maps are the combination of the 26-m DRAO (Dominion Radio Astrophysical Observatory) and the 30-m Villa Elisa polarization survey, at 1.4 GHz (21 cm), with an angular resolution of 36'. Units of the maps are ''mKTB''. | ||
| - | The Villa Elisa 30-m telescope was used to map the southern sky simultaneously in continuum and linear polarization, yielding a fully sampled map of the 21cm linearly polarized emission for declinations between -10 and -90 degrees. Data in the overlap region between -10 and -27 degrees was used to match the Villa Elisa survey's zero-level with that of the DRAO 1.4 GHz linear polarization survey. | + | The Villa Elisa 30-m telescope was used to map the southern sky simultaneously in continuum and linear polarization, yielding a fully sampled map of the 21cm linearly polarized emission for declinations between -10 and -90 degrees. Data in the overlap region between -10 and -27 degrees was used to match the Villa Elisa survey's zero-level with that of the DRAO 1.4 GHz linear polarization survey.\\ |
| + | |||
| + | Healpix maps made by D. Paradis | ||
| === Reference for the 22 MHz survey === | === Reference for the 22 MHz survey === | ||
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| * 'An absolutely calibrated survey of polarized emission from the northern sky at 1.4 GHz. Observations and data reduction' by Wolleben, M. et al. 2006, A&A, 448, 411 http://adsabs.harvard.edu/abs/2006A%26A...448..411W | * 'An absolutely calibrated survey of polarized emission from the northern sky at 1.4 GHz. Observations and data reduction' by Wolleben, M. et al. 2006, A&A, 448, 411 http://adsabs.harvard.edu/abs/2006A%26A...448..411W | ||
| * 'A fully sampled λ21 cm linear polarization survey of the southern sky' by Testori, J. et al. 2008, A&A, 484, 733 http://adsabs.harvard.edu/abs/2008A%26A...484..733T | * 'A fully sampled λ21 cm linear polarization survey of the southern sky' by Testori, J. et al. 2008, A&A, 484, 733 http://adsabs.harvard.edu/abs/2008A%26A...484..733T | ||
| + | <html> | ||
| + | <script src="lib/scripts/aladin-btns.js"></script> | ||
| + | <script> | ||
| + | // Broadcasts a table given a hub connection. | ||
| + | var drao22mhz = function(connection) { | ||
| + | var msg = new samp.Message("image.load.fits", | ||
| + | {"url": "http://cade.irap.omp.eu/documents/Ancillary/DRAO/DRAO_22MHz_1_256.fits","name":"DRAO 22MHz"} ); | ||
| + | connection.notifyAll([msg]); | ||
| + | }; | ||
| + | var draopolu= function(connection) { | ||
| + | var msg = new samp.Message("image.load.fits", | ||
| + | {"url": "http://cade.irap.omp.eu/documents/Ancillary/DRAO/DRAO_VillaElisa_21cm_POLU_1_256.fits","name":"DRAO+Villa Elisa 21cm POLU"} ); | ||
| + | connection.notifyAll([msg]); | ||
| + | }; | ||
| + | var draopolq= function(connection) { | ||
| + | var msg = new samp.Message("image.load.fits", | ||
| + | {"url": "http://cade.irap.omp.eu/documents/Ancillary/DRAO/DRAO_VillaElisa_21cm_POLQ_1_256.fits","name":"DRAO+Villa Elisa 21cm POLQ"} ); | ||
| + | connection.notifyAll([msg]); | ||
| + | }; | ||
| + | |||
| + | </script> | ||
| + | </html> | ||
| + | |||
| + | |||
| + | |||
| + | ^ __**DRAO 22 MHz**__ ^ __**DRAO+Villa Elisa 1.4 GHz POLU**__ ^ __**DRAO+Villa Elisa 1.4 GHz POLQ**__ ^ | ||
| + | | <html> | ||
| + | <div id="aladin-lite-div-drao22mhz" class="aladin-lite-container200"></div> | ||
| + | </html> | <html> | ||
| + | <div id="aladin-lite-div-draopolu" class="aladin-lite-container200"></div> | ||
| + | </html> | <html> | ||
| + | <div id="aladin-lite-div-draopolq" class="aladin-lite-container200"></div> | ||
| + | </html> | | ||
| + | |||
| === Maps === | === Maps === | ||
| - | - 22 MHz : [[http://cade.irap.omp.eu/documents/Ancillary/DRAO/DRAO_22MHz_1_256.fits| DRAO_22MHz_1_256.fits]] | + | - 22 MHz : [[http://cade.irap.omp.eu/documents/Ancillary/DRAO/DRAO_22MHz_1_256.fits| DRAO_22MHz_1_256.fits]]<html> |
| + | <button class="aladin-btn" type="button" onclick="connector.runWithConnection(drao22mhz)">Aladin</button> | ||
| + | </html> | ||
| + | |||
| + | - 1.4 GHz POLU : [[http://cade.irap.omp.eu/documents/Ancillary/DRAO/DRAO_VillaElisa_21cm_POLU_1_256.fits| DRAO_VillaElisa_21cm_POLU_1_256.fits]]<html> | ||
| + | <button class="aladin-btn" type="button" onclick="connector.runWithConnection(draopolu)">Aladin</button> | ||
| + | </html> | ||
| + | |||
| + | - 1.4 GHz POLQ : [[http://cade.irap.omp.eu/documents/Ancillary/DRAO/DRAO_VillaElisa_21cm_POLQ_1_256.fits| DRAO_VillaElisa_21cm_POLQ_1_256.fits]]<html> | ||
| + | <button class="aladin-btn" type="button" onclick="connector.runWithConnection(draopolq)">Aladin</button> | ||
| + | </html> | ||
| + | |||
| + | <html> | ||
| + | <script> | ||
| + | // Aladin visualizations | ||
| + | jQuery().ready(function($){ | ||
| + | var aladin_01 = A.aladin('#aladin-lite-div-drao22mhz', {zoom:170}); | ||
| + | aladin_01.setFrame('Galactic'); | ||
| + | aladin_01.gotoPosition(0, 0); | ||
| + | aladin_01.setImageSurvey(aladin_01.createImageSurvey( | ||
| + | 'DRAO 22MHz', 'DRAO 22MHz', | ||
| + | 'http://cade.irap.omp.eu/documents/Ancillary/4Aladin/DRAO_22MHz/', | ||
| + | 'Galactic', 3 | ||
| + | )); | ||
| + | aladin_01.getBaseImageLayer().getColorMap().update('rainbow'); | ||
| + | |||
| + | var aladin_02 = A.aladin('#aladin-lite-div-draopolu', {zoom:170}); | ||
| + | aladin_02.setFrame('Galactic'); | ||
| + | aladin_02.gotoPosition(0, 0); | ||
| + | aladin_02.setImageSurvey(aladin_02.createImageSurvey( | ||
| + | 'DRAO+Villa Elisa 1.4 GHz POLU', 'DRAO+Villa Elisa 1.4 GHz POLU', | ||
| + | 'http://cade.irap.omp.eu/documents/Ancillary/4Aladin/DRAO-VillaElisa_21cm_POLU/', | ||
| + | 'Galactic', 3 | ||
| + | )); | ||
| + | aladin_02.getBaseImageLayer().getColorMap().update('rainbow'); | ||
| + | |||
| + | var aladin_03 = A.aladin('#aladin-lite-div-draopolq', {zoom:170}); | ||
| + | aladin_03.setFrame('Galactic'); | ||
| + | aladin_03.gotoPosition(0, 0); | ||
| + | aladin_03.setImageSurvey(aladin_03.createImageSurvey( | ||
| + | 'DRAO+Villa Elisa 1.4 GHz POLQ', 'DRAO+Villa Elisa 1.4 GHz POLQ', | ||
| + | 'http://cade.irap.omp.eu/documents/Ancillary/4Aladin/DRAO-VillaElisa_21cm_POLQ/', | ||
| + | 'Galactic', 3 | ||
| + | )); | ||
| + | aladin_03.getBaseImageLayer().getColorMap().update('rainbow'); | ||
| - | - 1.4 GHz POLU : [[http://cade.irap.omp.eu/documents/Ancillary/DRAO/DRAO_VillaElisa_21cm_POLU_1_256.fits| DRAO_VillaElisa_21cù_POLU_1_256.fits]] | + | }); |
| + | </script> | ||
| + | </html> | ||
| - | - 1.4 GHz POLQ : [[http://cade.irap.omp.eu/documents/Ancillary/DRAO/DRAO_VillaElisa_21cm_POLQ_1_256.fits| DRAO_VillaElisa_21cù_POLQ_1_256.fits]] | + | === HiPS=== |
| + | DRAO HiPS are available in Aladin Collections/Image | ||
| === Original WCS data === | === Original WCS data === | ||