Free Access
Table 2
Characteristic average parameters of the eROSITA all-sky survey.
Survey duration | 4.0 years | 0.5 years | ||||
Sky region | Extragalactic sky | Ecliptic poles | Extragalactic sky | |||
Solid angle [deg2] | 34 100 (|b| > 10°) | 90 | 34 100 (|b| > 10°) | |||
Exposure time [s] | 2000 | 20 000 | 260 | |||
|
||||||
Energy band [keV] | 0.5−2.0 | 2−10 | 0.5−2.0 | 2−10 | 0.5−2.0 | 2−10 |
|
||||||
Resolved extrag. CXB [%] | 31 | 6 | 53 | 17 | 12 | ≲1 |
Background counts [cts/PSF] | 0.8 | 0.6 | 6.7 | 6.1 | 0.1 | 0.1 |
Source counts [cts/PSF] | 7.6 | 6.8 | 16.5 | 15.6 | 4.4 | 3.9 |
Sensitivity ⟨Slim⟩ [10-14 erg s-1 cm-2] | 1.1 | 18 | 0.23 | 4.2 | 4.8 | 80 |
Source density [deg-2] | 84 | 3.7 | 450 | 37 | 10.0 | 0.4 |
Number of sources [× 103] | 2900 | 130 | 41 | 3.4 | 340 | 13 |
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.