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Table 1
Swift observations of nova M31N 2008-12a.
| ObsID | Expa | Dateb | MJDb | Δtc | UVd [mag] | Rate | L 0.2−1.0 e | ||||
| [ks] | [UT] | [d] | [d] | uvm2 | uvw1 | uvw2 | [10-2 ct s-1] | [1038 erg s-1] | |||
|
|
|||||||||||
| 00032613005 | 6.0 | 2013-12-03.03 | 56 629.03 | 6.43 | – | – | 19.4 ± 0.1 | 1.3 ± 0.2 | 1.0 ± 0.1 | ||
| 00032613006 | 2.0 | 2013-12-04.09 | 56 630.09 | 7.49 | 19.8 ± 0.3 | > 19.5 | 19.7 ± 0.2 | 1.8 ± 0.4 | 1.3 ± 0.3 | ||
| 00032613007 | 2.0 | 2013-12-04.70 | 56 630.70 | 8.10 | 19.4 ± 0.2 | 19.4 ± 0.2 | 19.3 ± 0.2 | 1.7 ± 0.3 | 1.2 ± 0.3 | ||
| 00032613008 | 1.7 | 2013-12-05.23 | 56 631.23 | 8.63 | 20.0 ± 0.4 | 19.6 ± 0.2 | 19.8 ± 0.3 | 2.2 ± 0.4 | 1.7 ± 0.3 | ||
| 00032613009 | 1.9 | 2013-12-05.70 | 56 631.70 | 9.10 | 19.8 ± 0.3 | > 19.9 | 19.9 ± 0.3 | 4.0 ± 0.5 | 3.0 ± 0.4 | ||
| 00032613010 | 2.0 | 2013-12-06.10 | 56 632.10 | 9.50 | 19.9 ± 0.3 | 19.8 ± 0.3 | 19.5 ± 0.2 | 4.0 ± 0.5 | 3.0 ± 0.4 | ||
| 00032613011 | 2.0 | 2013-12-06.63 | 56 632.63 | 10.03 | > 20.2 | 19.7 ± 0.3 | 20.0 ± 0.3 | 3.8 ± 0.5 | 2.8 ± 0.4 | ||
| 00032613012 | 3.3 | 2013-12-07.10 | 56 633.10 | 10.50 | 20.1 ± 0.2 | > 19.8 | 20.2 ± 0.3 | 1.3 ± 0.2 | 1.0 ± 0.2 | ||
| 00032613013 | 1.8 | 2013-12-07.57 | 56 633.57 | 10.97 | 20.1 ± 0.4 | 19.4 ± 0.2 | 19.6 ± 0.2 | 1.7 ± 0.4 | 1.3 ± 0.3 | ||
| 00032613014 | 1.5 | 2013-12-08.03 | 56 634.03 | 11.43 | 19.6 ± 0.3 | > 20.0 | 19.9 ± 0.3 | 3.0 ± 0.5 | 2.2 ± 0.4 | ||
| 00032613015 | 1.8 | 2013-12-08.57 | 56 634.57 | 11.97 | 19.9 ± 0.4 | 20.0 ± 0.3 | > 20.3 | 3.2 ± 0.5 | 2.4 ± 0.4 | ||
| 00032613016 | 4.4 | 2013-12-09.03 | 56 635.04 | 12.44 | 19.8 ± 0.2 | 19.7 ± 0.3 | 20.0 ± 0.2 | 2.5 ± 0.3 | 1.9 ± 0.2 | ||
| 00032613017 | 3.8 | 2013-12-10.44 | 56 636.44 | 13.84 | > 20.6 | 19.9 ± 0.2 | 20.0 ± 0.2 | 3.2 ± 0.3 | 2.4 ± 0.2 | ||
| 00032613018 | 2.1 | 2013-12-11.04 | 56 637.04 | 14.44 | 20.0 ± 0.4 | > 20.2 | > 20.4 | 1.6 ± 0.3 | 1.2 ± 0.2 | ||
| 00032613019 | 3.0 | 2013-12-11.31 | 56 637.30 | 14.70 | 20.1 ± 0.3 | 19.6 ± 0.3 | 20.2 ± 0.3 | 1.7 ± 0.3 | 1.3 ± 0.2 | ||
| 00032613020 | 1.9 | 2013-12-11.57 | 56 637.57 | 14.97 | > 20.0 | 19.6 ± 0.3 | 19.9 ± 0.3 | 1.9 ± 0.4 | 1.4 ± 0.3 | ||
| 00032613021 | 1.9 | 2013-12-12.04 | 56 638.04 | 15.44 | 19.9 ± 0.2 | – | – | 1.3 ± 0.3 | 1.0 ± 0.2 | ||
| 00032613022 | 1.9 | 2013-12-12.32 | 56 638.32 | 15.72 | 20.4 ± 0.3 | – | – | 1.3 ± 0.3 | 1.0 ± 0.2 | ||
| 00032613023 | 1.9 | 2013-12-12.51 | 56 638.52 | 15.92 | 20.2 ± 0.4 | 19.8 ± 0.3 | 20.0 ± 0.3 | 1.8 ± 0.4 | 1.4 ± 0.3 | ||
| 00032613024 | 2.1 | 2013-12-12.78 | 56 638.78 | 16.18 | > 20.9 | – | – | 1.7 ± 0.3 | 1.3 ± 0.2 | ||
| 00032613025 | 2.0 | 2013-12-13.10 | 56 639.11 | 16.51 | – | 19.8 ± 0.2 | – | 0.9 ± 0.2 | 0.7 ± 0.2 | ||
| 00032613026 | 1.9 | 2013-12-13.31 | 56 639.31 | 16.71 | – | 20.4 ± 0.3 | – | 0.6 ± 0.2 | 0.5 ± 0.2 | ||
| 00032613027 | 1.9 | 2013-12-13.58 | 56 639.58 | 16.98 | – | 20.2 ± 0.2 | – | 0.5 ± 0.2 | 0.4 ± 0.1 | ||
| 00032613028 | 2.0 | 2013-12-13.78 | 56 639.78 | 17.18 | > 20.2 | > 20.2 | > 20.5 | 0.3 ± 0.1 | 0.2 ± 0.1 | ||
| 00032613029 | 0.3 | 2013-12-14.24 | 56 640.24 | 17.64 | – | – | – | < 3.4 | < 2.5 | ||
| 00032613030 | 0.9 | 2013-12-14.38 | 56 640.38 | 17.78 | – | – | – | 0.9 ± 0.4 | 0.7 ± 0.3 | ||
| 00032613031 | 1.9 | 2013-12-14.52 | 56 640.52 | 17.92 | – | – | – | < 3.4 | < 2.5 | ||
| 00032613032 | 1.9 | 2013-12-14.78 | 56 640.78 | 18.18 | > 20.2 | 20.1 ± 0.4 | 20.3 ± 0.3 | 0.5 ± 0.2 | 0.4 ± 0.1 | ||
| 00032613036 | 1.6 | 2013-12-15.06 | 56 641.06 | 18.46 | > 20.1 | > 20.0 | > 20.3 | < 1.2 | < 0.9 | ||
| 00032613033 | 1.4 | 2013-12-15.64 | 56 641.64 | 19.04 | – | – | 20.8 ± 0.3 | < 0.9 | < 0.7 | ||
| 00032613034 | 1.9 | 2013-12-16.05 | 56 642.05 | 19.45 | > 20.2 | > 20.1 | > 20.4 | < 0.7 | < 0.5 | ||
| 00032613035 | 1.7 | 2013-12-16.52 | 56 642.52 | 19.92 | 20.7 ± 0.3 | – | – | < 0.5 | < 0.3 | ||
| 00032613037 | 7.6 | 2013-12-17.06 | 56 643.06 | 20.46 | > 19.9 | 20.4 ± 0.2 | > 20.3 | < 0.2 | < 0.2 | ||
| 00032613038 | 7.8 | 2013-12-20.66 | 56 646.66 | 24.06 | 20.4 ± 0.2 | > 20.6 | 20.2 ± 0.3 | < 0.1 | < 0.1 | ||
| 00032613039 | 8.0 | 2013-12-23.26 | 56 649.26 | 26.66 | 20.0 ± 0.4 | > 19.6 | 20.5 ± 0.2 | < 0.2 | < 0.1 | ||
| 00032613040 | 3.8 | 2013-12-23.59 | 56 649.59 | 26.99 | – | – | – | < 0.2 | < 0.2 | ||
Notes.
(c)
time in days after the outburst of nova M31N 2008-12a in the optical on 2013-11-26.60 UT (MJD = 56 622.60; see Tang et al. 2013);
(e)
X-ray luminosities (unabsorbed, black-body fit, 0.2–1.0 keV) and upper limits were estimated according to Sect. 3.
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