2018A&A...614A.135W

Query : 2018A&A...614A.135W

2018A&A...614A.135W - Astronomy and Astrophysics, volume 614A, 135-135 (2018/6-1)

Towards an improvement in the spectral description of central stars of planetary nebulae.

WEIDMANN W., GAMEN R., MAST D., FARINA C., GIMENO G., SCHMIDT E.O., ASHLEY R.P., PERALTA DE ARRIBA L., SOWICKA P. and ORDONEZ-ETXEBERRIA I.

Abstract (from CDS):


Context. There are more than 3000 known Galactic planetary nebulae, but only 492 central stars of Galactic planetary nebulae (CSPN) have known spectral types.It is vital to increase this number in order to have reliable statistics, which will lead to an increase of our understanding of these amazing objects.
Aims. We aim to contribute to the knowledge of central stars of planetary nebulae and stellar evolution.
Methods. This observational study is based on Gemini Multi-Object Spectrographs (GMOS) and with theIntermediate Dispersion Spectrograph (IDS) at theIsaac Newton Telescope spectra of 78 CSPN. The objects were selected because they did not have any previous classification, or the present classification is ambiguous. These new high quality spectra allowed us to identify the key stellar lines for determining spectral classification in the Morgan-Keenan (MK) system.
Results. We have acquired optical spectra of a large sample of CSPN. From the observed targets, 50 are classified here for the first time while for 28 the existing classifications have been improved.In seven objects we have identified a P-Cygni profile at the HeI lines. Six of these CSPN are late O-type. The vast majority of the stars in the sample exhibit an absorption-type spectrum, and in one case we have found wide emission lines typical of [WR] stars. We give a complementary, and preliminary, classification criterion to obtain the sub-type of the O(H)-type CSPN. Finally, we give a more realistic value of the proportion of CSPN that are rich or poor in hydrogen.

Abstract Copyright: © ESO 2018

Journal keyword(s): planetary nebulae: general - stars: Population II - stars: early-type - surveys

VizieR on-line data: <Available at CDS (J/A+A/614/A135): tablea3.dat fits/*>

Simbad objects: 82

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Number of rows : 82
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 PN K 3-66 PN 04 36 37.2375115440 +33 39 30.074689980           O 76 0
2 PN M 1-5 PN 05 46 50.0119955400 +24 22 02.848049436           ~ 116 1
3 PN M 1-6 PN 06 35 45.1241072736 -00 05 37.396958568     15.84     O6-9I 116 1
4 PN K 4-50 PN 06 47 04.1740638480 +04 37 17.702245272   17.03 16.16 15.59   B? 18 0
5 EM* StHA 62 PN 07 20 01.5463247976 +18 17 25.906004808   12.741 12.802 12.836 12.74 B0.5I 23 0
6 PN M 1-14 PN 07 27 56.5101847704 -20 13 22.650485448           O(H)7-9 103 0
7 PHR J0745-3535 PN 07 45 41.1 -35 35 04           ~ 7 1
8 PHR J0809-1650 PN 08 09 01.4695147080 -16 50 02.091128136           O(H)III-V 7 1
9 RCW 24 PN 08 25 47.520 -40 13 10.01 17.25 18.24 18.21 18.25   DA 12 2
10 PHR J0834-2819 PN 08 34 18.1 -28 19 03           DAO 8 1
11 IC 2448 PN 09 07 06.3191779848 -69 56 30.692677668   11.1 11.10     O(H)3III-V 232 0
12 IC 2501 PN 09 38 47.1901701864 -60 05 30.807638520   11.7 10     O3-6 181 0
13 PN A66 33 PN 09 39 09.1418645928 -02 48 30.486998664           DAO 146 0
14 PN HbDs 1 PN 09 52 44.5227395376 -46 16 47.456730768 11.11 12.28 12.50 12.66   O(H)3Vz 79 0
15 PN My 59 PN 10 23 09.1381004472 -60 32 42.103742784           O(H)7-9I 131 1
16 LEDA 278194 G 10 56 09.6 -69 36 18           ~ 3 0
17 ESO 216-2 PN 11 18 09.7690222344 -52 10 02.677208412   15.33   15.60   O(H)4-5V 22 0
18 SBSS 1150+599 PN 11 53 24.7392231288 +59 39 57.050391708   17.5       O(H)III-V 69 0
19 PHR J1244-6601 PN 12 44 59.5776851177 -66 01 03.997607935   16.970 15.247 14.783 13.590 ~ 5 1
20 PN Lo 8 PN 13 25 37.5025333848 -37 36 14.736103488     12.6     O(H)3Vz 50 0
21 HD 120678 Em* 13 52 56.4133904568 -62 43 14.260321632 7.04 9.45 8.20 9.02   O9.5Ve 71 1
22 WRAY 16-151 PN 14 18 43.3392909960 -63 07 10.089170220     14.20     O(H)4Ifc 77 0
23 PN LoTr 8 PN 14 21 59.97 -55 02 17.0           [WR] 21 0
24 LS 3235 PN 14 24 32.3538115128 -51 38 39.090950772 12.01 13.02 12.96 13.00   O(H)3I 12 1
25 PHR J1510-6754 PN 15 10 26.1 -67 54 54           O(H)e 6 1
26 NeVe 3-2 PN 15 19 43.8903790152 -48 59 54.881127024           O(H)4Vz 12 0
27 WRAY 16-175 PN 15 22 19.3810418304 -54 08 12.691013892     14.00     O3-4 97 0
28 NAME WKK136-337 PN 15 50 28.91 -59 58 50.0           O(H)3III-V 7 0
29 PN Sp 1 PN 15 51 40.9510318656 -51 31 28.545826008   14.43 13.98 13.86   O(H)3-5(fc) 138 0
30 PN VBRC 7 PN 15 54 51.01 -51 22 34.0     15.00     ~ 22 0
31 WRAY 15-1440 PN 16 15 42.2912711376 -59 54 01.013284224     13.08     B0 84 0
32 WRAY 16-221 PN 16 27 50.9220461448 -54 01 28.496218188     13.20     B0I-III 74 0
33 HD 151853 PM* 16 49 40.2092170968 +10 39 53.581748220   10.18 9.45     F8 4 0
34 HD 151895 PN 16 54 35.1297096456 -64 14 28.564429056   12.03 11.72     O(H)4-8III-V 104 0
35 PN M 2-7 PN 17 05 13.91 -30 32 19.7     15.50     O 55 0
36 PN Sa 4-1 PN 17 13 50.3511314472 +49 16 11.026488576   14 14.3     O(H)3V 37 0
37 NGC 6326 PN 17 20 46.252 -51 45 15.17   12.83 11.53 16.00 15.16 O(H)5-8((fc)) 145 0
38 PN Lo 16 PN 17 35 41.8805265456 -40 11 26.481440724     16.14     O(H)3-4Vz((fc)) 33 0
39 PN G352.1-02.6 PN 17 36 17.2557132216 -36 59 47.237218044           O(H)8If 7 1
40 PN G355.6-02.3 PN 17 44 27.91 -33 55 20.3           ~ 13 1
41 PN Pe 1-9 PN 17 45 36.7571084976 -23 02 26.318855004     19.166   17.815 O(H) 46 0
42 PPA J1747-3435 PN 17 47 08.3 -34 35 43           O(H) 10 1
43 NAME PN SAB 41 PN 17 48 16.3 -35 38 31     15.48     ~ 16 1
44 PN HaTr 6 PN 17 51 52.8214681233 -60 23 21.650976794           ~ 19 0
45 PN M 3-16 PN 17 52 46.0471623240 -30 49 35.021065800     17.007   16.122 O(H)4-6III-V 73 0
46 PN H 2-29 PN 17 53 16.8231690912 -32 40 38.501200020     19.313   18.308 O(H) 57 0
47 PN M 2-19 PN 17 53 45.6485317560 -29 43 46.975373868     16.976   15.973 O(H)6-8III-V 90 0
48 PN K 6-34 PN 17 54 41.10 -31 31 43.2           O(H)4-6 12 0
49 PN Sa 3-96 PN 17 55 45.05304 -15 03 42.8220           O-rich 44 2
50 PHR J1756-3342 PN 17 56 39.5 -33 42 31           O(H)3-4Vz 9 1
51 PHR J1757-2824 PN 17 57 42.2 -28 24 07           O(H) 9 1
52 BMP J1800-3407 PN 18 00 26.5 -34 07 49           O(H)4-5Vz 7 1
53 IC 4673 PN 18 03 18.4585925304 -27 06 22.715564832     13.50     O(H)8 114 0
54 PHR J1804-2913 PN 18 04 28.52 -29 13 57.2           O(H) 12 1
55 PN H 1-56 PN 18 07 53.8842030888 -29 44 34.338810768     15.00     O? 81 0
56 EM* AS 283 PN 18 11 35.1005488652 -28 22 36.727284875   11 13.70     B0I-III 77 0
57 PN H 1-65 PN 18 20 08.8466492016 -24 15 05.268485484   12 14.30     [WC11] 84 0
58 PN M 1-46 PN 18 27 56.3175434256 -15 32 54.434037264     12.83     O(H)7I(fc) 125 0
59 PN K 3-5 PN 18 31 45.8281755432 +04 05 09.319126848           ~ 33 0
60 PN H 2-48 PN 18 46 35.1182447568 -23 26 48.261468804     13     OIII-V 89 0
61 PN K 3-14 PN 18 48 32.8112121864 +10 35 50.714952360   10       O8-9 38 0
62 PN SB 20 PN 18 49 24.3 -19 52 16           O(H)3-4 15 1
63 PN Sa 1-8 PN 18 50 44.3429282736 -13 31 02.365384008   12       O(H)4-8III 46 0
64 PPA J1855-2328 PN 18 55 04.8751234872 -23 28 12.799791768           O(H)6III-V 10 1
65 PN K 4-10 PN 18 59 03.7591234632 +20 37 01.120490616           O3-4 19 0
66 NGC 6742 PN 18 59 20.030 +48 27 55.24     16.567     O(H)III-V 60 0
67 PN Sp 4-1 PN 19 00 26.5460404944 +38 21 07.280102016       15.26   O? 34 0
68 PN A66 51 PN 19 01 01.3921913088 -18 12 15.321655224   15.30 15.42     O(H)3-5Vz 69 0
69 PN K 3-21 PN 19 02 40.3917921480 +14 28 48.795625272           ~ 25 0
70 IRAS 19021+0209 PN 19 04 38.6424983640 +02 14 24.197168292   16.960 15.487 14.915   B[e] 15 0
71 Hen 2-427 WR* 19 11 30.8749167768 +16 51 38.200938264   12.19 11.50     WN8h 340 0
72 PN K 4-19 PN 19 13 22.6022844000 +03 25 00.209394048           B1I 22 0
73 PN M 2-47 PN 19 13 34.5440854320 +04 38 04.013922588           O3-6 58 0
74 IPHASX J191716.4+033447 PN 19 17 16.3943798711 +03 34 47.356236848           O(H)III-V(e) 6 0
75 IRAS 19170+1706 PN 19 19 18.7059814104 +17 11 48.877947312   16.390 14.958 14.753   O(H)9I 25 0
76 Hen 1-2 PN 19 26 37.7448050904 +21 09 26.941487868     16.7     O9-B0I 47 0
77 NAME PN AMU 1 PN 19 31 08.8801090728 +43 24 57.692231064   13.39 13.64 13.83   O(H)3Vz 32 1
78 PN K 3-36 PN 19 32 39.557 +07 27 51.57           O? 27 0
79 PN M 1-72 PN 19 41 33.9729642288 +17 45 17.525500164           ~ 56 0
80 IRAS 19459+3110 PN 19 47 51.9148094064 +31 18 18.204765120           B0I 6 0
81 PN A66 68 PN 20 00 10.6027306413 +21 42 56.020459236           ~ 31 0
82 PN Vy 2-3 PN 23 22 57.9043238616 +46 53 58.073396856           O(H)3-4I 87 0

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