The goal of the new reprocessing was to solve calibration, zero level and striping problems in the IRAS data. The almost all-sky survey has been performed in 4 bands : 12 microns (at 3.8'), 25 microns (at 3.8'), 60 microns (at 4.0') and 100 microns (at 4.3'). Observations were made in three different epochs (HCON1, HCON2 and HCON3). The IRIS NOHOLES files correspond to the original unobserved regions filled with DIRBE.
The brightness maps, as well as uncertainty maps are in MJy/sr.
Healpix maps made by D. Paradis.
'IRIS: A New Generation of IRAS Maps', By Miville-Deschênes and Lagache, 2005, ApJS, 157, 302 http://adsabs.harvard.edu/abs/2005ApJS..157..302M
| Band 1 | Band 2 | Band 3 | Band 4 |
|---|---|---|---|
| IRIS_1_2048.fits | IRIS_2_2048.fits | IRIS_3_2048.fits | IRIS_4_2048.fits |
| Band 1 | Band 2 | Band 3 |
|---|---|---|
| IRIS_NOHOLES_1_2048.fits | IRIS_NOHOLES_2_2048.fits | IRIS_NOHOLES_3_2048.fits |
| Band 4 |
|---|
| IRIS_NOHOLES_4_2048.fits |
| Co-added maps | HCON1 | HCON2 |
|---|---|---|
| IRIS_HCON0_1_2048.fits | IRIS_HCON1_1_2048.fits | IRIS_HCON2_1_2048.fits |
| HCON3 |
|---|
| IRIS_HCON3_1_2048.fits |
| Band 1 | Band 2 | Band 3 |
|---|---|---|
| IRIS_1_SIGMA_final_1_2048.fits | IRIS_2_SIGMA_final_1_2048.fits | IRIS_3_SIGMA_final_1_2048.fits |
IRIS 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/IRIS_1_SIGMA
http://cade.irap.omp.eu/documents/Ancillary/4Aladin/IRIS_2_SIGMA
http://cade.irap.omp.eu/documents/Ancillary/4Aladin/IRIS_3_SIGMA
http://cade.irap.omp.eu/documents/Ancillary/4Aladin/IRIS_4_SIGMA
OR
unzip the directory and put it directly in an Aladin window to display the map
| Band 1 | Band 2 | Band 3 |
|---|---|---|
| IRIS_1_SIGMA.zip | IRIS_2_SIGMA.zip | IRIS_3_SIGMA.zip |
| Band 4 |
|---|
| IRIS_4_SIGMA.zip |