This website offers broad and narrow band maps for visualising the eROSITA-DE X-ray data. We also offer HiPS maps.
| ID | Name | Link to map | Description | Reference |
|---|---|---|---|---|
| Broad band maps | ||||
| 1 | eRASS1 0.200 – 0.400 keV map | 0.200 – 0.400 keV map | 0.200 – 0.400 keV band image of the eRASS1 data (TM81), shown in Galactic coordinates, using the Aitoff projection. The map was created with the "withweights=NO” option, therefore it reports the count rate collected by TM1, TM2, TM3, TM4, and TM6, with no renormalisation to TM0 (the latter being the standard choice in the eSASS command). The pixel size is 3' x 3'. The pixels show surface brightness values in units of cts/s/pxl, equivalent to cts/s/(9arcmin^2), with counts collected within the band. See the reference for further details on the image production. | Zheng, X., et al., A&A, 681, A77 (2024) |
| 2 | eRASS1 0.400 – 0.600 keV map | 0.400 – 0.600 keV map | 0.400 – 0.600 keV band image of the eRASS1 data (TM81), shown in Galactic coordinates, using the Aitoff projection. The map was created with the "withweights=NO” option, therefore it reports the count rate collected by TM1, TM2, TM3, TM4, and TM6, with no renormalisation to TM0 (the latter being the standard choice in the eSASS command). The pixel size is 3' x 3'. The pixels show surface brightness values in units of cts/s/pxl, equivalent to cts/s/(9arcmin^2), with counts collected within the band. See the reference for further details on the image production. | Zheng, X., et al., A&A, 681, A77 (2024) |
| 3 | eRASS1 0.600 – 1.000 keV map | 0.600 – 1.000 keV map | 0.600 – 1.000 keV band image of the eRASS1 data (TM81), shown in Galactic coordinates, using the Aitoff projection. The map was created with the "withweights=NO” option, therefore it reports the count rate collected by TM1, TM2, TM3, TM4, and TM6, with no renormalisation to TM0 (the latter being the standard choice in the eSASS command). The pixel size is 3' x 3'. The pixels show surface brightness values in units of cts/s/pxl, equivalent to cts/s/(9arcmin^2), with counts collected within the band. See the reference for further details on the image production. | Zheng, X., et al., A&A, 681, A77 (2024) |
| 4 | eRASS1 1.000 – 2.300 keV map | 1.000 – 2.300 keV map | 1.000 – 2.300 keV band image of the eRASS1 data (TM81), shown in Galactic coordinates, using the Aitoff projection. The map was created with the "withweights=NO” option, therefore it reports the count rate collected by TM1, TM2, TM3, TM4, and TM6, with no renormalisation to TM0 (the latter being the standard choice in the eSASS command). The pixel size is 3' x 3'. The pixels show surface brightness values in units of cts/s/pxl, equivalent to cts/s/(9arcmin^2), with counts collected within the band. See the reference for further details on the image production. | Zheng, X., et al., A&A, 681, A77 (2024) |
| 5 | eRASS1 2.300 – 5.000 keV map | 2.300 – 5.000 keV map | 2.300 – 5.000 keV band image of the eRASS1 data (TM81), shown in Galactic coordinates, using the Aitoff projection. The map was created with the "withweights=NO” option, therefore it reports the count rate collected by TM1, TM2, TM3, TM4, and TM6, with no renormalisation to TM0 (the latter being the standard choice in the eSASS command). The pixel size is 3' x 3'. The pixels show surface brightness values in units of cts/s/pxl, equivalent to cts/s/(9arcmin^2), with counts collected within the band. See the reference for further details on the image production. | Zheng, X., et al., A&A, 681, A77 (2024) |
| Narrow band maps | ||||
| 1 | eRASS1 0.534 – 0.616 keV map | 0.534 – 0.616 keV map | 0.534 – 0.616 keV band image of the eRASS1 data (TM81), shown in Galactic coordinates, using the Zenith Equal Area (ZEA) projection. The units are counts/s/deg2. See the reference for further details on the image production. | Zheng, X., et al. (submitted, 2024) |
| 2 | eRASS1 0.614 – 0.694 keV map | 0.614 – 0.694 keV map | 0.614 – 0.694 keV band image of the eRASS1 data (TM81), shown in Galactic coordinates, using the Zenith Equal Area (ZEA) projection. The units are counts/s/deg2. See the reference for further details on the image production. | Zheng, X., et al. (submitted, 2024) |
| other maps | ||||
| 1 | ||||
| HiPS maps2 | ||||
| 1 | RGB map | RGB | The RGB map was composed from bands 025 (0.2 – 0.5 keV = R), 026 (0.5 – 1.0 keV = G), 027 (1.0 – 2.0 keV = B) | |
| 2 | Rate map | rate map band 021 | Energy band 021 (0.2 – 0.6 keV) | |
| 3 | Rate map | rate map band 022 | Energy band 022 (0.6 – 2.3 keV) | |
| 4 | Rate map | rate map band 023 | Energy band 023 (2.3 – 5.0 keV) | |
| 5 | Rate map | rate map band 024 | Energy band 024 (0.2 – 2.3 keV) | |
| 6 | Rate map | rate map band 025 | Energy band 025 (0.2 – 0.5 keV) | |
| 7 | Rate map | rate map band 026 | Energy band 026 (0.5 – 1.0 keV) | |
| 8 | Rate map | rate map band 027 | Energy band 027 (1.0 – 2.0 keV) | |
| 9 | Image map | image map band 021 | Energy band 021 (0.2 – 0.6 keV) | |
| 10 | Image map | image map band 022 | Energy band 022 (0.6 – 2.3 keV) | |
| 11 | Image map | image map band 023 | Energy band 023 (2.3 – 5.0 keV) | |
| 12 | Image map | image map band 024 | Energy band 024 (0.2 – 2.3 keV) | |
| 13 | Image map | image map band 025 | Energy band 025 (0.2 – 0.5 keV) | |
| 14 | Image map | image map band 026 | Energy band 026 (0.5 – 1.0 keV) | |
| 15 | Image map | image map band 027 | Energy band 027 (1.0 – 2.0 keV) | |
| 16 | Exposure map | exposure map band 021 | Energy band 021 (0.2 – 0.6 keV) | |
| 17 | Exposure map | exposure map band 022 | Energy band 022 (0.6 – 2.3 keV) | |
| 18 | Exposure map | exposure map band 023 | Energy band 023 (2.3 – 5.0 keV) | |
| 19 | Exposure map | exposure map band 024 | Energy band 024 (0.2 – 2.3 keV) | |
| 20 | Exposure map | exposure map band 025 | Energy band 025 (0.2 – 0.5 keV) | |
| 21 | Exposure map | exposure map band 026 | Energy band 026 (0.5 – 1.0 keV) | |
| 22 | Exposure map | exposure map band 027 | Energy band 027 (1.0 – 2.0 keV) | |
Only cameras with on-chip filter, i.e. TM1, TM2, TM3, TM4, and TM6.↩
The maps were created using a eROSITA-specific HiPS map generation program ero_hips_gen.↩