Free Access
Table C.1.
XSPEC model parameters for the photon background.
| Model | Parameter | Value | Unit |
|---|---|---|---|
| apec | kT | 9.9 × 10−2 | keV |
| apec | abundance | 1.0 | |
| apec | redshift | 0 | |
| apec | norm | 1.7 × 10−6 | (10−14/(4π(DA(1 + z))2))∫nenHdV |
| wabs | nH | 0.018 | 1022 cm−2 |
| apec | kT | 0.225 | keV |
| apec | abundance | 1.0 | |
| apec | redshift | 0 | |
| apec | norm | 7.3 × 10−7 | |
| powerlaw | PhoIndex | 1.45 | |
| powerlaw | norm | 4.0 × 10−7 | pho keV−1 cm−2 s−1 @ 1 keV |
Notes. Normalizations to 1 arcmin2. The angular size distance to the source (cm) is denoted by DA, and ne and nH are the electron and hydrogen densities (cm−3).
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.