Free Access
Table 3
Summary of the best-fit parameters of BD +37° 1977 obtained with different spectral models.
| Parameter | Unit | Value |
|
|
||
| Power law | ||
| N H | cm-2 | ( |
| Γ | – | 5.0 |
|
– | 1.76 |
| Degrees of freedom | – | 14 |
|
|
||
| Blackbody | ||
| N H | cm-2 | ( |
| kT | eV | 67 |
|
|
– | 2.46 |
| Degrees of freedom | – | 14 |
|
|
||
| Power law + Blackbody | ||
| N H | cm-2 | ( |
| ΓPL | – | 3.9 |
| k T BB | eV | 22 |
|
|
– | 0.76 |
| Degrees of freedom | – | 12 |
|
|
||
| Mekal + Mekal | ||
| (with solar abundances) | ||
| N H | cm-2 | (1.8 ± 1.2) × 1020 |
| k T 1 | eV | 81 |
| k T 2 | eV | 800 |
|
|
– | 2.15 |
| Degrees of freedom | – | 12 |
|
|
||
| Mekal + Mekal | ||
| (with abundances from Jeffery & Hamann 2010) | ||
| N H | cm-2 | 1 × 1020 (fixed) |
| k T 1 | eV | 120 ± 30 |
| k T 2 | eV | 840 |
|
|
– | 0.71 |
| Degrees of freedom | – | 13 |
|
|
||
| Mekal + Mekal | ||
| (with abundances from Jeffery & Hamann 2010) | ||
| (with free Oxygen abundance) | ||
| N H | cm-2 | 1 × 1020 (fixed) |
| k T 1 | eV | 100 |
| k T 2 | eV | 840 |
| Oxygen Abundance | – | 310 ± 250 |
|
|
– | 0.64 |
| Degrees of freedom | – | 12 |
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.