Table 3.
Spectral fit parameters of J12270 using the first composite model presented in Sect. 2.1.
| Parameter | High mode | Low mode | Quiescence |
|---|---|---|---|
| NH (1020 cm−2) | 9.5 |
Tied all | Tied all |
| Power law Γ | 1.46 ± 0.04 | 1.67 ± 0.07 | – |
| Disc T( * ) (eV) | <100 | <89 | – |
| Disc norm Nd ( * ) | >220 | >339 | – |
| NS atmos. T (eV) | 193 |
97 |
Tied low mode |
| NS atmos. radius (km) | 1.0 |
Tied all | Tied all |
| NS power law ΓP | – | 1.0 ± 0.1 | Tied low mode |
Notes. The fit provides a 
= 1.09 for 2276 degrees of freedom with an additional systematic error of 2%. For each parameters errors are 90% confidence level (Δχ2 = 2.71). NS emission radius is computed assuming a 1.4 kpc source distance, a 1.4 M⊙ NS mass and a 10 km NS radius. ( * )We estimated an upper limit for the disc components excluding them from the fit since the inefficient disc component is too weak for being constrained.
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.