Free Access

This article has an erratum: [erratum]

Table 2

Characteristics of the X-ray flares observed by XMM-Newton/EPIC in 2011.

Flare Day Start timea End timea Duration Totalb Peakc d
(#) (yy-mm-dd) (hh:mm:ss) (hh:mm:ss) (s) (cts) (count s-1) (1034 erg s-1)

1 2011-03-30 17:46:20.69 18:19:40.86 2000.16 211 ± 25 0.284 ± 0.013
2 2011-04-03 08:16:35.65 08:41:02.04 1457.67 ≥ 154 ± 24 0.165 ± 0.012 2.9

Notes. assuming a distance of 8 kpc, see Sect. 4 for details.

(a)

Start and end times (TT) of the flare time interval defined by the Bayesian-blocks algorithm (Scargle et al. 2013a) on the EPIC/pn data;

(b)

total EPIC/pn counts in the 210 keV energy band obtained in the smoothed light curve during the flare interval (determined by Bayesian blocks) after subtractingf the non-flaring level obtained with the Bayesian-blocks algorithm;

(c)

EPIC pn count rate in the 210 keV energy band at the flare peak (smoothed light curves) after subtracting the non-flaring level;

(d)

unabsorbed 210 keV average luminosity of the flare computed from the total counts collected during the flare (i.e., the average count rate) and

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.