Press Release
Free Access

Table 8

Best-fit parameters of the tentative ultra-fast outflow.

v out a

Ion log Nionb log ξc

Mg xii 16.57  ±  0.34 2.75
Al xiii  <16.7 2.90
Si xiv 16.71  ±  0.39 3.05
S xv 17.65  ±  1.20 2.80



Outflow velocity, in units of km s-1;


ionic column density, in units of cm-2;


ionization parameter at which the ion fraction peaks for each ion, in units of erg s-1 cm.

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.