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Table 1

XMM-Newton EPIC observations of nova M31N 2008-05d.

ObsID Exp. timea Dateb MJDb Δtc Count Rate L0.2−1.0d L 50 e
[ks] [UT] [d] [d] [ct s-1] [erg s-1] [erg s-1]
0560180101 20.0 (17.4) 2008-07-18.26 54665.26 51  <2.8  × 10-3  <0.9  × 1037  <1.3  × 1036
0655620301 20.0 (6.6) 2011-08-01.26 55774.26 1160 (4.0 ± 0.4)  × 10-2 (1.7 ± 0.2)  × 1038 (2.0 ± 0.2)  × 1037
0655620401 30.2 (10.7) 2012-01-21.76 55947.76 1334 (4.7 ± 0.2)  × 10-2 (2.0 ± 0.1)  × 1038 (2.2 ± 0.1)  × 1037

Notes. 

(a)

EPIC pn total exposure time, in brackets we give the “good” time, corrected for dead time and high background, which was used to estimate count rates and extract the image in Fig. 1;

(b)

start date of the observation;

(c)

time in days after the outburst of nova M31N 2008-05d in the optical on 2008-05-28.04 (MJD = 54614.04; see Ovcharov et al. 2008);

(d)

X-ray luminosities (unabsorbed, blackbody fit, 0.2–1.0 keV) and upper limits were estimated according to Sect. 3 (luminosity errors are 1σ, upper limits are 3σ);

(e)

unabsorbed equivalent luminosity computed from 0.2–10.0 keV count rates assuming a 50 eV blackbody spectrum with Galactic foreground absorption of 6.7  × 1020 cm-2.

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