2010A&A...519A..42M


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.02CET11:42:40

2010A&A...519A..42M - Astronomy and Astrophysics, volume 519, A42-42 (2010/9-1)

An XMM-Newton view of planetary nebulae in the Small Magellanic Cloud. The X-ray luminous central star of SMP SMC 22.

MEREGHETTI S., KRACHMALNICOFF N., LA PALOMBARA N., TIENGO A., RAUCH T., HABERL F., FILIPOVIC M.D. and STURM R.

Abstract (from CDS):

During an X-ray survey of the Small Magellanic Cloud, carried out with the XMM-Newton satellite, we detected significant soft X-ray emission from the central star of the high-excitation planetary nebula SMP SMC 22. Its very soft spectrum is reproduced well with a non-local thermodynamical equilibrium model atmosphere composed of H, He, C, N, and O, with abundances equal to those inferred from studies of its nebular lines. The derived effective temperature of 1.5x105K is in close agreement with that found from the optical/UV data. The unabsorbed flux in the 0.1-0.5keV range is ∼3x10–11erg/cm2/s, corresponding to a luminosity of ∼1.2x1037erg/s at a distance of 60kpc. We also searched for X-ray emission from a large number of SMC planetary nebulae, confirming the previous detection of SMP SMC 25 with a luminosity of (0.2-6)x1035erg/s (0.1-1keV). For the remaining objects that were not detected, we derived flux upper limits corresponding to luminosity values from several tens to hundreds times lower than that of SMP SMC 22. The exceptionally high X-ray luminosity of SMP SMC 22 is probably due to the high mass of its central star, which is rapidly evolving toward the white dwarf's cooling branch, and to a small amount of intrinsic absorption in the nebula itself.

Abstract Copyright:

Journal keyword(s): planetary nebulae: individual: SMP SMC 22, SMP SMC 25 - Magellanic Clouds - X-rays: general

Simbad objects: 49

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Number of rows : 49

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 [MA93] 14 Em* 00 40 36.6 -73 25 46     19.4     ~ 4 0
2 LHA 115-N 5 PN 00 41 21.6980594785 -72 45 16.781576463   14.4 15.805   17.224 ~ 51 0
3 SMP SMC 7 PN 00 42 28.16 -73 20 55.1     18.230   19.598 ~ 25 0
4 [MA93] 44 Em* 00 43 09.3 -73 08 02     19.803   20.487 ~ 5 0
5 LHA 115-N 7 PN 00 43 25.305 -72 38 18.79     16.212   17.58 ~ 32 0
6 Jacoby SMC 2 PN 00 45 09.92 -73 20 31.8           ~ 8 0
7 LIN 66 PN 00 45 20.68 -73 24 09.9     17.494   19.155 ~ 28 0
8 LIN 71 PN 00 45 27.180 -73 42 13.97   16.03 15.19   14.26 ~ 19 1
9 LHA 115-N 18 PN 00 46 59.647 -72 49 16.55     16.6     ~ 24 0
10 Jacoby SMC 5 PN 00 47 13.03 -73 10 07.7           ~ 4 0
11 Jacoby SMC 9 PN 00 49 19.68 -73 17 35.9     19.817   19.881 ~ 11 0
12 SMP SMC 12 PN 00 49 21.06 -73 52 58.6     18.536   17.983 ~ 16 0
13 Jacoby SMC 10 PN 00 49 26.69 -72 34 02.2           ~ 4 0
14 LHA 115-N 38 PN 00 49 51.6437069650 -73 44 21.387841921   16.1 15.382   16.913 ~ 47 0
15 Jacoby SMC 12 PN 00 50 21.08 -72 27 04.1           ~ 6 0
16 LHA 115-N 40 PN 00 50 35.06 -73 42 57.9     16.500   18.095 ~ 36 0
17 [MA93] 406 Em* 00 50 52.43 -73 44 55.4     18.574   19.751 ~ 5 0
18 Jacoby SMC 13 PN 00 50 57.65 -72 30 03.6           ~ 3 0
19 LHA 115-N 42 PN 00 51 27.14 -72 26 11.7   16.32 16.741   16.922 ~ 59 0
20 Jacoby SMC 15 PN 00 51 30.82 -72 28 39.8           ~ 4 0
21 Jacoby SMC 17 PN 00 51 36.63 -73 20 17.0   18.347 18.036   17.242 Be 15 0
22 Jacoby SMC 16 PN 00 51 36.63 -72 32 07.5           ~ 3 0
23 Jacoby SMC 18 PN 00 51 43.35 -73 00 54.5     19.9     ~ 14 0
24 LHA 115-N 47 PN 00 51 58.311 -73 20 31.87     16.158   16.17 ~ 48 0
25 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 9610 1
26 LIN 239 PN 00 53 11.15 -72 45 07.6     16.432   17.873 ~ 35 0
27 Jacoby SMC 21 PN 00 53 20.63 -73 06 33.3           ~ 8 0
28 Jacoby SMC 22 PN 00 54 25.27 -72 35 58.8           ~ 3 0
29 Jacoby SMC 23 PN 00 55 30.43 -72 50 21.9     19.7   17.835 ~ 17 0
30 [MA93] 891 PN 00 55 59.40 -72 14 00.8     19.274   20.314 ~ 6 0
31 LIN 302 PN 00 56 19.4713604941 -72 06 58.161111444   16.0 17.609   17.792 ~ 26 0
32 LIN 305 PN 00 56 30.750 -72 27 02.00   17.14 17.32   18.023 ~ 37 0
33 Jacoby SMC 24 PN 00 56 39.3887281925 -72 39 07.219031892           ~ 10 0
34 Jacoby SMC 25 PN 00 57 23.37 -72 48 17.8     20.7     ~ 9 0
35 LHA 115-N 67 PN 00 58 37.095 -71 35 48.80   16.3 16.4 15.27 17.66 ~ 87 0
36 LIN 343 PN 00 58 42.34 -72 57 00.0   16.70 16.910   18.387 ~ 29 0
37 LHA 115-N 68 PN 00 58 42.86 -72 27 16.7   15.71 15.3   18.920 ~ 23 0
38 LIN 357 PN 00 59 40.5116753063 -71 38 15.143658242   17.48 17.856   18.581 ~ 32 0
39 Jacoby SMC 27 PN 00 59 43.77 -72 57 19.1           ~ 9 0
40 [MA93] 1357 Em* 01 03 06.35 -72 32 52.1     19.4     ~ 6 0
41 MGPN SMC 10 PN 01 04 51.12 -73 05 21.4     19.3     ~ 9 0
42 MGPN SMC 11 PN 01 08 40.503 -72 18 08.74     19.1 19.4   ~ 8 0
43 LIN 485 PN 01 10 04.8532473339 -72 45 27.441271491     19.342   18.411 ~ 6 0
44 [MA93] 1762 PN 01 12 40.170 -72 53 47.19   19.2 20.109 19.0 20.309 ~ 8 0
45 LHA 115-N 87 PN 01 21 10.6560090246 -73 14 34.851943244   15.94 15.553   16.758 ~ 45 0
46 [MA93] 1889 Em* 01 21 42.831 -73 20 51.26   20.1 19.5 18.3   ~ 4 0
47 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 5794 1
48 LHA 120-N 102 PN 05 08 03.323 -68 40 16.58 15.580 16.298 15.406 14.86 16.653 ~ 47 0
49 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 15063 1

    Equat.    Gal    SGal    Ecl

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2020.12.02-11:42:40

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