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akari [2017/08/31 12:19] ahughes |
akari [2023/04/11 15:17] Déborah Paradis |
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| ====== AKARI ====== | ====== AKARI ====== | ||
| - | The AKARI satellite was launched in February 2006 and the all-sky survey was performed during the period April 2006 — August 2007. Its telescope | + | The Japanese AKARI mission was launched in February 2006. The telescope |
| - | mirror had a diameter of 685 mm and was capable of observing across the ''2-180'' microns near to far-infrared spectral regions. | + | mirror had a diameter of 68.5 cm and was capable of observing infrared wavelengths between 2 and 180 microns. AKARI was equipped with two science instruments: the FIS (Far-Infrared Surveyor) for far-infrared observations and the IRC (InfraRed Camera) for near and mid-infrared observations. |
| - | The sky coverage of the Far-Infrared Surveyor was 99%, with | + | |
| - | 97% of the sky covered with multiple scans. The observed | + | |
| - | wavelength coverage spans 50-180 microns continuously with four photometric bands, centered at 65, 90, 140 and 160 microns, at a resolution of 1' to 2'. | + | |
| + | CADE currently only serves data from the FIS all-sky survey. The survey data spans 50-180 microns continuously with four photometric bands centered at 65 microns, 90 microns, 140 microns, and 160 microns with angular resolution ranging from 1 to 1.5 arcmin. The sky coverage is greater than 99% for each band, with 97% of the sky covered with multiple scans. Absolute flux calibration was determined by comparison with COBE/DIRBE data. | ||
| - | A detailed description of FIR AKARI survey can be found in the paper 'The AKARI far-infrared all-sky survey maps' by Doi et al, 2015, PASJ, 67, 50. | + | The units of the Healpix maps are ''MJy/sr''.\\ |
| - | http://adsabs.harvard.edu/abs/2015PASJ...67...50D | + | Healpix maps made by D. Paradis. |
| - | Data in the WCS format can be downloaded here: http://www.ir.isas.jaxa.jp/AKARI/Archive/Images/FIS_AllSkyMap/ | + | === References === |
| + | * 'The AKARI far-infrared all-sky survey maps' by Doi, Y. et al, 2015, PASJ, 67, 50. http://adsabs.harvard.edu/abs/2015PASJ...67...50D | ||
| + | * 'Calibration of the AKARI far-infrared all-sky survey maps' by Takita, S. et al, 2015, PASJ, 67, 51 http://adsabs.harvard.edu/abs/2015PASJ...67...51T | ||
| + | |||
| + | ^ __**AKARI 65**__ ^ __**AKARI 160**__ ^ | ||
| + | | <html><div id="aladin-lite-div-akari65" class="aladin-lite-container"></div></html> | <html><div id="aladin-lite-div-akari160" class="aladin-lite-container"></div></html> | | ||
| === Maps === | === Maps === | ||
| - | 65 microns : [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_65_1_4096.fits|AKARI_65_1_4096.fits]] | + | 65 microns : \\ |
| + | - Original resolution: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_65_1_4096.fits|AKARI_65_1_4096.fits]] | ||
| <html> | <html> | ||
| <button class="aladin-btn" type="button" onclick="connector.runWithConnection(akari65)">Aladin</button> | <button class="aladin-btn" type="button" onclick="connector.runWithConnection(akari65)">Aladin</button> | ||
| - | </html> | + | </html> \\ |
| + | - 4 arcmin: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_65_4arcm_1_2048.fits|AKARI_65_4arcm_1_2048.fits]] \\ | ||
| + | - 16.2 arcmin: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_65_16p2_1_1024.fits|AKARI_65_16p2_1_1024.fits]] \\ | ||
| + | - 1 degree: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_65_1deg_1_256.fits|AKARI_65_1deg_1_256.fits]] \\ | ||
| - | 90 microns : [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_WideS_1_4096.fits|AKARI_WideS_1_4096.fits]] | + | 90 microns : \\ |
| + | - Original resolution: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_WideS_1_4096.fits|AKARI_WideS_1_4096.fits]] | ||
| <html> | <html> | ||
| <button class="aladin-btn" type="button" onclick="connector.runWithConnection(akari90)">Aladin</button> | <button class="aladin-btn" type="button" onclick="connector.runWithConnection(akari90)">Aladin</button> | ||
| - | </html> | + | </html> \\ |
| + | - 4 arcmin: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_WideS_4arcm_1_2048.fits|AKARI_WideS_4arcm_1_2048.fits]] \\ | ||
| + | - 16.2 arcmin: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_WideS_16p2_1_1024.fits|AKARI_WideS_16p2_1_1024.fits]] \\ | ||
| + | - 1 degree: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_WideS_1deg_1_256.fits|AKARI_WideS_1deg_1_256.fits]] \\ | ||
| - | 140 microns : [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_WideL_1_4096.fits|AKARI_WideL_1_4096.fits]] | + | |
| + | 140 microns : \\ | ||
| + | - Original resolution: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_WideL_1_4096.fits|AKARI_WideL_1_4096.fits]] | ||
| <html> | <html> | ||
| <button class="aladin-btn" type="button" onclick="connector.runWithConnection(akari140)">Aladin</button> | <button class="aladin-btn" type="button" onclick="connector.runWithConnection(akari140)">Aladin</button> | ||
| - | </html> | + | </html> \\ |
| + | - 4 arcmin: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_WideL_4arcm_1_2048.fits|AKARI_WideL_4arcm_1_2048.fits]] \\ | ||
| + | - 16.2 arcmin: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_WideL_16p2_1_1024.fits|AKARI_WideL_16p2_1_1024.fits]] \\ | ||
| + | - 1 degree: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_WideL_1deg_1_256.fits|AKARI_WideL_1deg_1_256.fits]] \\ | ||
| - | 160 microns : [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_160_1_4096.fits|AKARI_160_1_4096.fits]] | + | 160 microns : \\ |
| + | - Original resolution : [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_160_1_4096.fits|AKARI_160_1_4096.fits]] | ||
| <html> | <html> | ||
| <button class="aladin-btn" type="button" onclick="connector.runWithConnection(akari160)">Aladin</button> | <button class="aladin-btn" type="button" onclick="connector.runWithConnection(akari160)">Aladin</button> | ||
| - | </html> | + | </html> \\ |
| + | - 4 arcmin: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_160_4arcm_1_2048.fits|AKARI_160_4arcm_1_2048.fits]] \\ | ||
| + | - 16.2 arcmin: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_160_16p2_1_1024.fits|AKARI_160_16p2_1_1024.fits]] \\ | ||
| + | - 1 degree: [[http://cade.irap.omp.eu/documents/Ancillary/AKARI/AKARI_160_1deg_1_256.fits|AKARI_160_1deg_1_256.fits]] \\ | ||
| - | ^ __**AKARI 65**__ ^ __**AKARI 160**__ ^ | ||
| - | | <html><div id="aladin-lite-div-akari65" class="aladin-lite-container"></div></html> | <html><div id="aladin-lite-div-akari160" class="aladin-lite-container"></div></html> | | ||
| Line 63: | Line 83: | ||
| </html> | </html> | ||
| + | ===HiPS === | ||
| + | AKARI HiPS are available in Aladin Collections/Image | ||
| + | |||
| + | For SIGMA HiPS, enter the following URLs in Aladin ("Files" then "Use directly a URL"): | ||
| + | http://cade.irap.omp.eu/documents/Ancillary/4Aladin/AKARI_65_SIGMA | ||
| + | http://cade.irap.omp.eu/documents/Ancillary/4Aladin/AKARI_WideS_SIGMA | ||
| + | http://cade.irap.omp.eu/documents/Ancillary/4Aladin/AKARI_WideL_SIGMA | ||
| + | http://cade.irap.omp.eu/documents/Ancillary/4Aladin/AKARI_160_SIGMA | ||
| + | |||
| + | OR | ||
| + | |||
| + | unzip the directory and put it directly in an Aladin window to display the map | ||
| + | |||
| + | Uncertainty at 65 microns : [[http://cade.irap.omp.eu/documents/Ancillary/hips_zip/AKARI_65_SIGMA.zip| AKARI_65_SIGMA.zip]] | ||
| + | |||
| + | Uncertainty at 90 microns : [[http://cade.irap.omp.eu/documents/Ancillary/hips_zip/AKARI_WideS_SIGMA.zip| AKARI_WideS_SIGMA.zip]] | ||
| + | |||
| + | Uncertainty at 140 microns : [[http://cade.irap.omp.eu/documents/Ancillary/hips_zip/AKARI_WideL_SIGMA.zip| AKARI_WideL_SIGMA.zip]] | ||
| + | |||
| + | Uncertainty at 160 microns : [[http://cade.irap.omp.eu/documents/Ancillary/hips_zip/AKARI_160_SIGMA.zip| AKARI_160_SIGMA.zip]] | ||
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| </script> | </script> | ||
| </html> | </html> | ||
| + | |||
| + | === Known Issues === | ||
| + | The version 1 AKARI data release has the following known issues: | ||
| + | |||
| + | (1) Zodiacal emission. Only the smooth component of the zodiacal emission is subtracted from the image data. The dust band and the Earth-resonant dust ring components remain in the image. | ||
| + | |||
| + | (2) Moving bodies. Planets and asteroids in our solar system are not masked during the image processing. So the images near the ecliptic plane may contain the solar system objects. | ||
| + | |||
| + | (3) Earth shine. Contamination of the stray light from the Earth shine near the north ecliptic pole is conspicuous especially in the shorter wavebands (N60 and WIDE-S). | ||
| + | |||
| + | === Version History === | ||
| + | * v1 CADE maps, April 2015 | ||
| + | |||
| + | === Original WCS Data === | ||
| + | http://www.ir.isas.jaxa.jp/AKARI/Archive/Images/FIS_AllSkyMap/ | ||
| + | |||
| + | === Project Website === | ||
| + | http://www.ir.isas.jaxa.jp/AKARI/ | ||
| + | |||