2018MNRAS.473.2275M


Query : 2018MNRAS.473.2275M

2018MNRAS.473.2275M - Mon. Not. R. Astron. Soc., 473, 2275-2287 (2018)

SALT HRS discovery of a long-period double-degenerate binary in the planetary nebula NGC 1360.

MISZALSKI B., MANICK R., MIKOLAJEWSKA J., ILKIEWICZ K., KAMATH D. and VAN WINCKEL H.

Abstract (from CDS):

Whether planetary nebulae (PNe) are predominantly the product of binary stellar evolution as some population synthesis models (PSM) suggest remains an open question. Around 50 short-period binary central stars (P ∼ 1 d) are known, but with only four with measured orbital periods over 10 d, our knowledge is severely incomplete. Here we report on the first discovery from a systematic Southern African Large Telescope (SALT) High Resolution Spectrograph (HRS) survey for long-period binary central stars. We find a 142 d orbital period from radial velocities of the central star of NGC 1360, HIP 16566. NGC 1360 appears to be the product of common-envelope (CE) evolution, with nebula features similar to post-CE PNe, albeit with an orbital period considerably longer than expected to be typical of post-CE PSM. The most striking feature is a newly identified ring of candidate low-ionization structures. Previous spatiokinematic modelling of the nebula gives a nebula inclination of 30° ± 10°, and assuming the binary nucleus is coplanar with the nebula, multiwavelength observations best fit a more massive, evolved white dwarf (WD) companion. A WD companion in a 142 d orbit is not the focus of many PSM, making NGC 1360 a valuable system with which to improve future PSM work. HIP 16566 is amongst many central stars in which large radial velocity variability was found by low-resolution surveys. The discovery of its binary nature may indicate long-period binaries may be more common than PSM models predict.

Abstract Copyright:

Journal keyword(s): techniques: radial velocities - stars: AGB and post-AGB - binaries: spectroscopic - white dwarfs - planetary nebulae: general - planetary nebulae: individual: NGC 1360

VizieR on-line data: <Available at CDS (J/MNRAS/473/2275): tablea1.dat>

Errata: erratum vol. 474, p. 646 (2018)

Simbad objects: 35

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Number of rows : 35
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2024
#notes
1 BD+46 442 * 01 45 47.0311634664 +46 49 00.937724124   10.02 9.46     F2III 27 0
2 WeBo 1 PN 02 40 14.3689395768 +61 09 16.795011780   16.25 14.45     K0III:pBa5CaIIem 38 1
3 NGC 1360 PN 03 33 14.6468527944 -25 52 17.977647900   10.95 11.16     sdO 283 0
4 NGC 1514 PN 04 09 16.9855873632 +30 46 33.470907708   10.01 9.48     sdO+A0/3III 336 2
5 V* AB Lep RS* 05 55 06.6090015168 -22 54 02.422292148           sdO+Ke 55 0
6 NGC 2346 PN 07 09 22.5215800440 -00 48 23.610997332   11.76 11.58     A5V 577 0
7 V* V421 CMa pA* 07 16 08.2750036896 -23 27 01.536458868   11.16 10.73     F5 31 0
8 EM* AS 201 PN 08 31 42.8828281680 -27 45 31.543524864   13 11.80     F9III 89 0
9 * rho01 Cnc PM* 08 52 35.8111044043 +28 19 50.954994470 7.45 6.82   5.4   K0IV-V 1130 1
10 WRAY 16-64 PN 10 03 49.2048192096 -60 43 48.272737800     13.70     ~ 51 0
11 PG 1115+166 WD* 11 17 55.1077994088 +16 21 29.251373436   15.16       DA+DB 46 0
12 PN Fg 1 PN 11 28 36.2243510088 -52 56 04.118494344   13.1 12.20     ~ 173 0
13 SBSS 1150+599 PN 11 53 24.7392231288 +59 39 57.050391708   17.5       O(H)III-V 70 0
14 PN LoTr 5 PN 12 55 33.7471108416 +25 53 30.559286040   9.72 8.88     G5III-IV 210 0
15 NGC 5189 PN 13 33 32.8780414224 -65 58 27.041428272   14.1 14.5   14.35 [WO1] 319 2
16 SV* HV 6516 LP* 14 15 59.6792402016 -61 53 50.267080356     12.00     F6V 43 0
17 HD 330036 PN 15 51 15.9290064932 -48 44 58.559111355   11.759 10.892 10.921   F5III-IVe 157 0
18 BD+33 2642 pA* 15 51 59.8854348048 +32 56 54.329485272 9.806 10.61 10.73 10.884 10.961 O7p 433 0
19 IC 4599 PN 16 19 23.2088078304 -42 15 36.708913692     12.70     ~ 84 0
20 HD 149427 PN 16 37 42.7000495176 -55 42 26.393176260   12.75 11.23     ~ 102 0
21 NGC 6337 PN 17 22 15.6721413768 -38 29 01.735593252     12.00     wels 139 0
22 PN Th 3-15 PN 17 27 10.6020826176 -27 43 58.817283348           ~ 33 0
23 PN H 2-13 PN 17 31 08.11 -30 10 28.3     16.60   18.501 ~ 44 0
24 OGLE BLG652.28 93904 EB* 17 41 48.4085938344 -25 38 18.360926520     19.575   18.328 ~ 9 1
25 PN H 2-22 PN 17 47 33.9413420071 -21 47 23.217346161           ~ 29 0
26 PN HaTr 7 PN 17 54 09.4487645808 -60 49 57.659690352   14.882 15.111 15.312 14.80 ~ 33 1
27 PN G005.3-02.0 PN? 18 05 28.1 -25 20 26           ~ 3 1
28 BD-02 4931 pA* 19 18 22.7165647344 -02 42 10.880466588   11.55 10.78     B1III 35 0
29 NAME PN AMU 1 PN 19 31 08.8801090728 +43 24 57.692231064   13.39 13.64 13.83   O(H)3Vz 33 1
30 PN Me 1-1 PN 19 39 09.8202196560 +15 56 48.274743516   13.343 11.855 12.493   ~ 126 0
31 IRAS 19417+1701 RS* 19 43 59.5114618200 +17 09 00.963778248   11.2   10.6   ~ 64 0
32 PN A66 65 PN 19 46 34.2091910232 -23 08 12.966083088   15.93 15.77 16.00 15.65 Opk 135 0
33 PN A66 70 PN 20 31 33.2075500128 -07 05 18.034910556         16.847 D+G8IV/VeBa 86 0
34 V* V1610 Cyg pA* 21 02 18.27 +36 41 37.0           F5Iae 874 1
35 EM* StHA 190 Sy* 21 41 44.8876442736 +02 43 54.414342804   11.13 10.22     G5e 48 0

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