2011A&A...533A..52H


C.D.S. - SIMBAD4 rel 1.7 - 2019.12.16CET14:15:57

2011A&A...533A..52H - Astronomy and Astrophysics, volume 533A, 52-52 (2011/9-1)

X-ray monitoring of classical novae in the central region of M 31. II. Autumn and winter 2007/2008 and 2008/2009.

HENZE M., PIETSCH W., HABERL F., HERNANZ M., SALA G., HATZIDIMITRIOU D., DELLA VALLE M., RAU A., HARTMANN D.H. and BURWITZ V.

Abstract (from CDS):

Classical novae (CNe) represent the major class of supersoft X-ray sources (SSSs) in the central region of the galaxy M 31. We performed a dedicated monitoring of the M 31central region with XMM-Newton and Chandra between Nov. 2007 and Feb. 2008 and between Nov. 2008 and Feb. 2009, respectively, to find SSS counterparts of CNe, determine the duration of their SSS phase, and derive physical outburst parameters. We systematically searched our data for X-ray counterparts of CNe, determined their X-ray light curves and characterised their spectra using blackbody fits and white dwarf (WD) atmosphere models. Additionally, we determined luminosity upper limits for all previously known X-ray emitting novae that are not detected any more and for all CNe in our field of view with optical outbursts between one year before the start of the X-ray monitoring (Oct. 2006) and its end (Feb. 2009). We detected 17 X-ray counterparts of CNe in M 31, only four of which were previously known. These latter sources are still active 12.5, 11.0, 7.4 and 4.8 years after the optical outburst. In addition, we detected three known SSSs without a nova counterpart. Four novae displayed short SSS phases (<100 d). Based on these results and previous studies we compiled a catalogue of all novae with SSS counterparts in M 31 known so far. We used this catalogue to derive correlations between the following X-ray and optical nova parameters: turn-on time, turn-off time, blackbody temperature (X-ray), t2 decay time and expansion velocity of the ejected envelope (optical). Temperatures derived from blackbody fits and WD atmosphere models were found to characterise the effective SSS temperatures almost equally well. Furthermore, we found a first hint for the existence of a difference between SSS parameters of novae associated with the stellar populations of the M 31 bulge and disk. Additionally, we conducted a Monte Carlo Markov chain simulation on the intrinsic fraction of novae with SSS phase. This simulation showed that the high fraction of novae without detected SSS emission might be explained by the inevitably incomplete coverage with X-ray observations in combination with a large part of novae with short SSS states, as expected from the WD mass distribution. Our results confirm that novae are the major class of SSSs in the central region of M 31. The catalogue of novae with X-ray counterpart, mainly based on our X-ray monitoring, contains valuable insight into the physics of the nova process. In order to verify our results with an increased sample, more monitoring observations are needed.

Abstract Copyright:

Journal keyword(s): galaxies: individual: M 31 - novae, cataclysmic variables - X-rays: binaries - stars: general

VizieR on-line data: <Available at CDS (J/A+A/533/A52): table9.dat refs.dat>

Simbad objects: 77

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Number of rows : 77

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2020
#notes
1 M31N 2005-09b No* 00 38 49.49 +40 19 54.1           ~ 7 0
2 M31N 2005-09c No* 00 38 54.63 +40 27 34.2           ~ 6 0
3 M31N 2007-02b No* 00 41 40.30 +41 14 34.0       16.7   ~ 6 0
4 M31N 2007-08b No* 00 41 49.41 +41 04 02.6           ~ 4 0
5 2MASS J00415442+4107244 No* 00 41 54.43 +41 07 24.4   16.6       ~ 11 0
6 M31N 2007-12d No* 00 41 55.00 +41 09 47.0       17.2   ~ 7 0
7 M31N 2005-01b No* 00 41 59.51 +40 44 31.0           ~ 4 0
8 M31N 2004-08a No* 00 42 20.62 +41 16 09.5       17.4   ~ 4 0
9 M31N 2001-01a No* 00 42 21.49 +41 07 47.4       17.1   ~ 5 0
10 [SI2001] 1997-02 No* 00 42 21.77 +41 12 16.3   16.6       ~ 6 0
11 M31N 2004-06a No* 00 42 22.31 +41 13 44.9       17.2   ~ 5 0
12 M31N 2008-02a No* 00 42 30.38 +41 35 55.7           ~ 3 0
13 M31N 2006-06b No* 00 42 32.77 +41 16 49.1       18.5   ~ 6 0
14 2MASS J00423317+4100263 No* 00 42 33.17 +41 00 26.3           ~ 22 0
15 [FDC2002] J004233.79+411823.7 No* 00 42 33.89 +41 18 23.9       16.8   ~ 9 1
16 M31N 2001-08d No* 00 42 34.62 +41 18 13.1       16.7   ~ 4 0
17 [CFN87] 2 No* 00 42 35.00 +41 13 22.0           ~ 7 0
18 [SI2001] 1990-08 No* 00 42 35.50 +41 13 48.0           ~ 5 0
19 M31N 2004-05b No* 00 42 37.04 +41 14 28.5       17.2   ~ 5 0
20 M31N 2007-11a No* 00 42 37.30 +41 17 10.0       16.7   ~ 7 0
21 M31N 2008-06a No* 00 42 37.69 +41 12 30.2       16.6   ~ 4 0
22 [SI2001] 1997-06 No* 00 42 40.14 +41 15 46.7           ~ 6 0
23 M31N 2004-01b No* 00 42 41.19 +41 15 45.0       18.4   ~ 5 0
24 EQ J004241.1+411616 No* 00 42 41.20 +41 16 16.0       17.9   ~ 8 1
25 AGAPE V1576 No* 00 42 42.08 +41 12 18.0       17.6   ~ 7 0
26 M31N 1997-11a No* 00 42 42.13 +41 15 10.5       18.0   ~ 8 0
27 NAME Nova 2006 No 9 in M 31 No* 00 42 42.40 +41 08 45.0       17.0   ~ 10 1
28 EQ 0040+4059 No* 00 42 42.77 +41 15 44.7       18.7   ~ 7 0
29 V* S And No* 00 42 43.12 +41 16 03.2   7.1 5.80     SNI 170 2
30 M31N 2000-07a No* 00 42 43.97 +41 17 55.5       16.8   ~ 21 0
31 M 31 G 00 42 44.330 +41 16 07.50 4.86 4.36 3.44     ~ 10618 1
32 M31N 2004-09b No* 00 42 44.45 +41 16 10.5   15.5       ~ 4 0
33 PA 93392 No* 00 42 46.10 +40 53 35.3           ~ 7 0
34 M31N 2004-11f No* 00 42 47.15 +41 16 19.8       17.9   ~ 9 0
35 M31N 2000-08a No* 00 42 47.45 +41 15 07.7       18.6   ~ 12 0
36 M31N 2004-06c No* 00 42 49.02 +41 19 17.8       17.1   ~ 5 0
37 M31N 1999-10a No* 00 42 49.70 +41 16 32.0           ~ 7 0
38 XMMM31 J004250.4+410750 No* 00 42 50.38 +41 07 48.5           ~ 8 0
39 M31N 2004-11g No* 00 42 52.48 +41 18 00.2       18.0   ~ 5 0
40 RX J004253.0+411533 X 00 42 52.528 +41 15 40.20           ~ 27 0
41 M31N 2005-02a No* 00 42 52.79 +41 14 28.9           ~ 8 0
42 M31N 2008-05b No* 00 42 52.88 +41 16 39.4       13.9   ~ 4 0
43 [H2003] J004253.64+411845.9 No* 00 42 53.64 +41 18 45.9           ~ 6 2
44 M31N 2003-11a No* 00 42 53.78 +41 18 46.2       16.9   ~ 6 0
45 [K2002] J004255.30+412045.5 No* 00 42 55.20 +41 20 46.0   17.5       ~ 15 0
46 M31N 2006-11a No* 00 42 56.60 +41 06 18.0       16.0   ~ 10 0
47 M31N 2008-05a No* 00 42 56.82 +41 11 52.8       16.7   ~ 5 0
48 [O2006] SSS 9 No* 00 42 59.30 +41 16 42.0           ~ 14 0
49 M31N 1992-11b No* 00 43 00.70 +41 14 39.0           ~ 7 0
50 M31N 2003-11b No* 00 43 00.76 +41 11 26.9       17.4   ~ 8 1
51 M31N 2001-10a No* 00 43 03.31 +41 12 11.5       17.0   ~ 15 1
52 M31N 2007-11c No* 00 43 04.14 +41 15 54.3           ~ 8 0
53 NAME Nova RJC99 Jul-98 No* 00 43 06.96 +41 18 09.9           ~ 14 1
54 M31N 2004-11b No* 00 43 07.45 +41 18 04.6       16.6   ~ 9 0
55 M31N 2008-06c No* 00 43 08.30 +41 18 38.0           ~ 3 1
56 M31N 2006-06a No* 00 43 11.81 +41 13 44.7       17.6   ~ 6 0
57 M31N 2006-04a No* 00 43 13.40 +41 16 59.0       15.9   ~ 8 0
58 [VRJ2006] M31V-J00431638+4123376 No* 00 43 16.20 +41 23 38.0           ~ 6 0
59 [PFF2005] WeCAPP-N2001-08 No* 00 43 18.62 +41 09 49.1       18.7   ~ 8 0
60 [PFH2005] 875 X 00 43 18.79 +41 18 04.7           ~ 6 0
61 RX J004318.6+412024 CV* 00 43 18.851 +41 20 18.52           ~ 23 0
62 2XMMi J004319.9+411346 No* 00 43 20.00 +41 13 46.0       17.0   ~ 28 0
63 M31N 1998-06a No* 00 43 28.76 +41 21 42.6     16.70     ~ 9 0
64 NAME AT 2017jdm No* 00 43 29.50 +41 17 13.0       17.8   ~ 11 0
65 M31N 2004-11e No* 00 43 31.85 +41 09 42.6       17.6   ~ 5 0
66 [SI2001] 1991-12 No* 00 43 33.50 +41 16 22.0           ~ 5 0
67 RX J004404.8+411820 No* 00 44 04.71 +41 18 21.7           ~ 18 0
68 2XMM J004414.4+412204 No* 00 44 14.52 +41 22 04.3   17.1       ~ 10 0
69 M31N 2001-10b No* 00 44 32.50 +41 25 21.9           ~ 8 0
70 M31N 2005-01c No* 00 45 40.31 +41 38 06.8           ~ 5 0
71 ShAl 57 No* 00 45 50.17 +41 36 06.1   16.6       ~ 5 0
72 V* V723 Cas No* 01 05 05.3607495884 +54 00 40.237067501   14.29       ~ 175 0
73 NOVA Mus 1983 No* 11 52 02.35 -67 12 20.2   7.2       ~ 249 0
74 NOVA Sco 1863 No* 16 22 30.7782086963 -17 52 43.162570042   8.80 8.70     F8+K2 458 0
75 V* RS Oph No* 17 50 13.1592776879 -06 42 28.481553668   12.29 4.30     OB+M2ep 914 0
76 NOVA Cyg 2008 b No* 19 43 01.9773145314 +32 19 13.545320806 18.27 18.72 18.03 17.72 17.41 ~ 134 0
77 NAME Galactic Bulge reg ~ ~           ~ 3265 0

    Equat.    Gal    SGal    Ecl

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2019.12.16-14:15:57

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