2015MNRAS.448.3587D


Query : 2015MNRAS.448.3587D

2015MNRAS.448.3587D - Mon. Not. R. Astron. Soc., 448, 3587-3602 (2015/April-3)

Identifying close binary central stars of PN with Kepler.

DE MARCO O., LONG J., JACOBY G.H., HILLWIG T., KRONBERGER M., HOWELL S.B., REINDL N. and MARGHEIM S.

Abstract (from CDS):

Six planetary nebulae (PN) are known in the Kepler space telescope field of view, three of which are newly identified. Of the five central stars of PN with useful Kepler data, one, J193110888+4324577, is the first short-period, post-common envelope binary exhibiting relativistic beaming effects. A second, the central star of the newly identified PN Pa 5, has a rare O(He) spectral type and a periodic variability consistent with an evolved companion, where the orbital axis is almost aligned with the line of sight. The third PN, NGC 6826, has a fast rotating central star, something that can only be achieved in a merger. Fourth, the central star of the newly identified PN Kn 61, has a PG1159 spectral type and a mysterious semi-periodic light variability which we conjecture to be related to the interplay of binarity with a stellar wind. Finally, the central star of the circular PN A61 does not appear to have a photometric variability above 2 mmag. With the possible exception of the variability of Kn 61, all other variability behaviour, would not easily have been detected from the ground. We conclude, based on very low numbers, that there may be many more close binary or close binary products to be discovered with ultra-high-precision photometry. With a larger number of high-precision photometric observations, we will be able to determine how much higher than the currently known 15 per cent, the short-period binary fraction for central stars of PN is likely to be.

Abstract Copyright: © 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2015)

Journal keyword(s): techniques: photometric - binaries: close - stars: evolution - planetary nebulae: individual: J193110888+4324577 - planetary nebulae: individual: Kn 61 - planetary nebulae: individual: Pa 5

CDS comments: BOKS 53586 is a misprint for BOKS 53856; J193110888+4324577 is a misprint for J193108888+4324577.

Simbad objects: 19

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Number of rows : 19
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 PN HDW 1 PN 01 07 07.6233410040 +73 33 23.447679408   16.308 16.439 16.452 16.482 DA 45 0
2 PN K 1-27 PN 05 57 02.1748457640 -75 40 22.478040120     16.04 16.27 16.41 sdOHe 85 0
3 PN Lo 4 PN 10 05 45.7880109408 -44 21 33.523482384           sdO 133 1
4 ESO 320-28 PN 11 52 29.2564204824 -42 17 38.943700548           ~ 54 0
5 SBSS 1150+599 PN 11 53 24.7392231288 +59 39 57.050391708   17.5       O(H)III-V 65 0
6 NGC 6026 PN 16 01 21.1234809960 -34 32 35.786302980   13.2 12.50     O7 107 0
7 PN A66 41 PN 17 29 02.0258857104 -15 13 04.482114960   16.06 15.95     sdO 136 1
8 NGC 6742 PN 18 59 20.030 +48 27 55.24     16.567     O(H)III-V 58 0
9 SDSS J191643.83+393849.7 WD* 19 16 43.8197701440 +39 38 49.362598824 17.362 17.60 17.72 17.93 17.72 DA 18 0
10 PN A66 61 PN 19 19 10.2027282696 +46 14 51.973821276   17.05 17.39     DAO.57 55 0
11 DSH J1919.5+4445 PN 19 19 30.5039701128 +44 45 42.705010116     15.670     ~ 16 0
12 NAME Soccer Ball Nebula PN 19 21 38.9356074984 +38 18 57.217259736     18.416     ~ 9 0
13 NAME PN AMU 1 PN 19 31 08.8801090728 +43 24 57.692231064   13.39 13.64 13.83   O(H)3Vz 26 2
14 BOKS 53856 WD* 19 41 31.3351593840 +46 06 10.661626944   17.4   17.4   DA 13 0
15 DSH J1943.4+4020 PN? 19 43 29.4 +40 20 05           ~ 2 0
16 NGC 6826 PN 19 44 48.1500225888 +50 31 30.249034932   10.21 9.6     O6fp 713 0
17 LAWD 79 WD* 19 56 29.2263375910 -01 02 32.671070269   13.89 13.56 13.73   DA6.4 131 0
18 HS 2209+8229 WD? 22 08 25.8763154304 +82 44 51.409027968   16.0       DO/sdO 13 0
19 NAME Cyg-Lyr Filament ? ~ ~           ~ 13 0

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2022.12.07-08:08:29

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