2014A&A...570A..26G


C.D.S. - SIMBAD4 rel 1.7 - 2019.10.17CEST03:41:19

2014A&A...570A..26G - Astronomy and Astrophysics, volume 570A, 26-26 (2014/10-1)

Spectroscopy of southern Galactic disk planetary nebulae. Notes on chemical composition and emission-line stars.

GORNY S.K.

Abstract (from CDS):

We present low resolution spectroscopic observations for a sample of 53 planetary nebulae (PNe) located in the southern sky between Vela and Norma constellations and pertaining to the Galactic disk with expected Galactocentric distance range of 5 to 10kpc. We derive nebular chemical composition and plasma parameters with the classical empirical method. For most of the observed objects, this has been done for the first time. We compare our results to published data for PNe of the Galactic bulge and PNe in the inner-disk region with expected typical Galactocentric distance of about 3kpc. We use the spectra to search for emission-line central stars in the observed sample. The distributions of the chemical abundances of the observed disk sample are generally indistinguishable from Galactic bulge and inner-disk PNe populations. The exceptions are possible differences in the He/H distribution, as compared to bulge PNe and Ne/Ar, as compared to the inner-disk PNe sample. The derived O/H ratios for the observed disk PNe fit to the concept of flattening of the chemical gradient in the inner parts of the Milky Way. Investigating the spectra, we found six new emission-line central stars comprising examples of all known types: WEL, VL, and [WR]. We confirm that these types represent three evolutionary unconnected forms of enhanced mass-loss in the central stars of PNe. We note on the problem of high ionisation PNe with nebular CIV emission that can mimic the presence of WEL central stars in 1D spectra.

Abstract Copyright:

Journal keyword(s): planetary nebulae: general - Galaxy: abundances - stars: Wolf-Rayet

CDS comments: CD -32 not identified (incomplete format).

Simbad objects: 63

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Number of rows : 63

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2019
#notes
1 CD-32 5613 WD* 08 41 32.4293043356 -32 56 32.916852010   12.07 11.85 12.3   DA5.5 257 0
2 PN PB 3 PN 08 54 18.3573507049 -50 32 22.603521557     14.40     ~ 49 0
3 PN PB 5 PN 09 16 09.61 -45 28 42.8   16.03 14.85     ~ 55 0
4 CD-56 2932 PN 09 43 25.61980 -57 16 55.6095   11.85 11.17 11.21   A2II 113 0
5 WRAY 16-64 PN 10 03 49.2045279660 -60 43 48.270869522     13.70     ~ 44 0
6 WRAY 16-66 PN 10 07 23.6189996068 -63 54 30.061278442     13.80     ~ 48 0
7 PN My 60 PN 10 31 33.4328771387 -55 20 50.830275004     13.30     ~ 70 0
8 CD-34 6792 PM* 10 32 13.6185042385 -35 37 41.710291605   12.84 11.84     F:wl: 123 0
9 PN Pe 1-1 PN 10 38 27.62 -56 47 06.5     14.20     [WC4/5] 85 0
10 WRAY 16-86 PN 11 17 43.1454276251 -70 49 32.176389648   12.3 14.00     ~ 37 0
11 WRAY 16-88 PN 11 24 01.04 -52 51 19.4   13.9 14.40     ~ 52 0
12 PN G293.1-00.0 PN 11 28 12.8697560949 -61 21 02.963849151           ~ 5 1
13 WRAY 16-92 PN 11 28 47.3891577108 -60 06 36.680867888     14.20     ~ 54 0
14 WRAY 16-94 PN 11 31 45.4622251905 -65 58 14.158577586     14.30     ~ 60 0
15 ESO 320-2 G 11 32 07.657 -41 25 40.98   15.57   14.28   ~ 24 0
16 WRAY 16-96 PN 11 35 10.9636796688 -60 17 01.029023188     16.00     ~ 33 0
17 LAWD 37 WD* 11 45 42.9170659451 -64 50 29.464090822 11.08 11.725 11.513 11.34 11.163 DQ 224 0
18 WRAY 16-100 PN 11 48 38.17 -65 08 37.1     13.40     ~ 77 0
19 NGC 3918 PN 11 50 17.7723407998 -57 10 57.059135256   10.0 8.5     ~ 359 0
20 ESO 320-28 PN 11 52 29.231 -42 17 38.69           ~ 51 0
21 ESO 95-1 HII 12 09 01.260 -63 15 59.63     16.00     ~ 90 2
22 WRAY 16-107 PN 12 09 10.2069547927 -58 42 37.284999317     15.20     ~ 33 0
23 WRAY 16-112 PN 12 23 53.30 -60 13 13.0     15.00     ~ 31 0
24 WRAY 16-114 PN 12 28 43.9839286027 -62 05 35.142324539     16.60     ~ 36 0
25 WRAY 16-115 PN 12 28 46.8457795246 -63 44 37.072611293     15.70     ~ 54 0
26 WRAY 16-116 PN 12 30 07.6671903152 -63 53 00.776508694   13.59 14.67     ~ 45 0
27 ESO 95-12 PN 12 30 24.659 -66 14 23.18           ~ 18 0
28 WRAY 16-117 PN 12 30 30.479 -64 52 05.72   14.55 15.00     [WC4] 107 0
29 PN K 1-23 PN 12 30 52.5788502057 -44 14 16.109172938   13.1 14.1     ~ 28 0
30 WRAY 16-120 PN 12 45 54.63 -60 20 15.5     15.00     ~ 20 0
31 WRAY 16-125 PN 13 09 36.405 -61 19 35.57   13.37 12.70     B[e] 117 0
32 WRAY 16-128 PN 13 24 21.92 -57 31 19.3     15.10     ~ 23 0
33 PN MeWe 1-3 PN 13 28 04.904 -54 41 58.35           ~ 21 0
34 WRAY 16-133 PN 13 42 36.1511904624 -61 22 28.861409573     15.86     ~ 48 0
35 PN G310.4+01.3 PN 13 53 23.01 -60 33 47.3           ~ 15 0
36 PN MaC 1-2 PN 13 54 27.067 -64 59 36.14           ~ 23 1
37 WRAY 16-142 PN 13 58 13.87 -58 54 32.3     14.00     ~ 56 0
38 WRAY 16-144 PN 14 05 36.75 -64 41 00.7     14     ~ 51 0
39 CPD-51 6744 PN 14 18 08.8856504204 -52 10 39.518062758   12.39 11.98     [WC] 144 0
40 WRAY 16-151 PN 14 18 43.3392251893 -63 07 10.088550635     14.20     O(H)4Ifc 72 0
41 WRAY 16-152 PN 14 20 48.92 -55 27 59.2     15.50     ~ 31 0
42 IRAS 14177-5824 PN 14 21 19.95 -58 38 22.5           ~ 15 0
43 PN LoTr 8 PN 14 21 59.97 -55 02 17.0           [WR] 17 0
44 WRAY 16-157 PN 14 40 30.9325388306 -52 34 56.913046380     13.70     ~ 76 0
45 WRAY 16-162 PN 15 05 16.80 -55 11 10.5     14.50     ~ 107 0
46 RCW 90 PN 15 05 59.1924631479 -55 59 16.628975687     13.50     ~ 85 0
47 WRAY 16-163 PN 15 06 01.90 -61 21 19.0     14.00     ~ 39 0
48 WRAY 16-169 PN 15 11 56.56 -55 39 46.6     13.00     ~ 66 0
49 WRAY 16-175 PN 15 22 19.3821395707 -54 08 12.695829341     14.00     O3-4 92 0
50 WRAY 16-178 PN 15 23 36.35 -53 51 28.1     15.00     ~ 56 0
51 HD 138403 PN 15 37 11.2073858949 -71 54 52.885863880   10.24 10.47 11.01   O8(f)ep 253 0
52 WRAY 15-1341 PN 15 41 58.83 -56 36 25.6     14.50     ~ 70 0
53 NGC 5979 PN 15 47 41.16 -61 13 05.6     12.10     wels 95 0
54 WRAY 16-189 PN 15 51 19.8571161273 -48 26 07.479239355     17.00     ~ 19 0
55 WRAY 16-194 PN 15 58 08.1036164810 -55 41 50.345148875     15.60     ~ 84 0
56 WRAY 16-200 PN 16 00 59.14 -55 05 40.1     15.80     ~ 58 0
57 PN StWr 4-10 PN 16 02 13.0531269700 -41 33 36.063307752   13.9 15.00     [WC2/3] 53 0
58 CD-38 10980 WD* 16 23 33.8384178546 -39 13 46.160032569 9.916 10.885 11.029 10.936 10.841 DA2 429 1
59 NGC 6326 PN 17 20 46.252 -51 45 15.17   12.83 11.53 16.00 15.16 O(H)5-8((fc)) 138 0
60 NAME Gal Center reg 17 45 40.04 -29 00 28.1           ~ 10997 0
61 CD-30 17706 WD* 20 10 56.8485174654 -30 13 06.629141494 11.654 12.286 12.242 12.311 12.381 DA3.1 213 0
62 LP 877-23 PM* 22 52 41.0353308036 -20 35 32.995847106   13.02 11.90     ~ 101 0
63 NAME Galactic Bulge reg ~ ~           ~ 3232 0

    Equat.    Gal    SGal    Ecl

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2019.10.17-03:41:19

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