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 - 2021
#notes
1 PN K 3-66 PN 04 36 37.23 +33 39 30.0           O 70 0
2 PN M 1-5 PN 05 46 50.0109398369 +24 22 02.818353956           ~ 112 1
3 PN M 1-6 PN 06 35 45.1225761631 -00 05 37.414428023     15.84     O6-9I 109 1
4 PN K 4-50 PN 06 47 04.1739717871 +04 37 17.705486396   17.03 16.16 15.59   B? 18 0
5 EM* StHA 62 PN 07 20 01.5465196627 +18 17 25.909557269   12.59 12.58 12.62 12.74 B0.5I 20 0
6 PN M 1-14 PN 07 27 56.5102638256 -20 13 22.651795279           O(H)7-9 97 0
7 PHR J0745-3535 PN 07 45 41.1 -35 35 04           ~ 5 1
8 PHR J0809-1650 PN 08 09 01.4695885157 -16 50 02.092485912           O(H)III-V 4 1
9 RCW 24 PN 08 25 47.520 -40 13 10.01 17.25 18.24 18.21 18.25   DA 10 2
10 PHR J0834-2819 PN 08 34 18.1 -28 19 03           DAO 6 1
11 IC 2448 PN 09 07 06.3186990004 -69 56 30.690171529   11.1 11.10     O(H)3III-V 226 0
12 IC 2501 PN 09 38 47.1807127191 -60 05 30.742117523   11.7 10     O3-6 174 0
13 PN A66 33 PN 09 39 09.1416894235 -02 48 30.487554710   15.38 15.54     DAO 139 0
14 PN HbDs 1 PN 09 52 44.5227859639 -46 16 47.455337620 11.11 12.28 12.50 12.66   O(H)3Vz 74 0
15 PN My 59 PN 10 23 09.1339166398 -60 32 42.127143375           O(H)7-9I 123 0
16 LEDA 278194 G 10 56 09.6 -69 36 18           ~ 3 0
17 ESO 216-2 PN 11 18 09.7688320857 -52 10 02.677654784   15.33   15.60   O(H)4-5V 18 0
18 SBSS 1150+599 PN 11 53 24.7390111544 +59 39 57.048984657   17.5       O(H)III-V 61 0
19 PN G302.2-03.1 PN 12 44 59.5 -66 01 02           ~ 3 1
20 PN Lo 8 PN 13 25 37.5031567435 -37 36 14.751713899     12.6     O(H)3Vz 44 0
21 HD 120678 Em* 13 52 56.4133085414 -62 43 14.259143108 7.04 9.45 8.20 9.02   O9.5Ve 68 1
22 WRAY 16-151 PN 14 18 43.3392251893 -63 07 10.088550635     14.20     O(H)4Ifc 73 0
23 PN LoTr 8 PN 14 21 59.97 -55 02 17.0           [WR] 18 0
24 LS 3235 PN 14 24 32.351 -51 38 39.00 12.01 13.02 12.96 13.00   O(H)3I 9 1
25 PHR J1510-6754 PN 15 10 26.1 -67 54 54           O(H)e 5 1
26 NeVe 3-2 PN 15 19 43.8903973458 -48 59 54.876513385           O(H)4Vz 9 0
27 WRAY 16-175 PN 15 22 19.3821395707 -54 08 12.695829341     14.00     O3-4 92 0
28 NAME WKK136-337 PN 15 50 28.91 -59 58 50.0           O(H)3III-V 5 0
29 PN Sp 1 PN 15 51 40.9511032767 -51 31 28.544655619   14.43 13.98 13.86   O(H)3-5(fc) 131 0
30 PN VBRC 7 PN 15 54 51.01 -51 22 34.0     15.00     ~ 19 0
31 WRAY 15-1440 PN 16 15 42.2921159038 -59 54 01.043810488     13.08     B0 79 0
32 WRAY 16-221 PN 16 27 50.9218589243 -54 01 28.495223464     13.20     B0I-III 70 0
33 HD 151853 PM* 16 49 40.2092442649 +10 39 53.580518745   10.18 9.45     F8 4 0
34 HD 151895 PN 16 54 35.1337523869 -64 14 28.686747259   12.03 11.72     O(H)4-8III-V 99 0
35 PN M 2-7 PN 17 05 13.91 -30 32 19.7     15.50     O 51 0
36 PN Sa 4-1 PN 17 13 50.3510580021 +49 16 11.029774277   14 14.3     O(H)3V 33 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)) 139 0
38 PN Lo 16 PN 17 35 41.8804437422 -40 11 26.481618150     16.14     O(H)3-4Vz((fc)) 28 0
39 PN G352.1-02.6 PN 17 36 17.2556032196 -36 59 47.236507662           O(H)8If 4 1
40 PN G355.6-02.3 PN 17 44 27.91 -33 55 20.3           ~ 11 1
41 PN Pe 1-9 PN 17 45 36.7590045393 -23 02 26.307474463     19.166   17.815 O(H) 43 0
42 PPA J1747-3435 PN 17 47 08.3 -34 35 43           O(H) 8 1
43 NAME PN SAB 41 PN 17 48 16.3 -35 38 31     15.48     ~ 14 1
44 PN HaTr 6 PN 17 51 52.835 -60 23 21.93           ~ 16 0
45 PN M 3-16 PN 17 52 46.05 -30 49 35.5     17.007   16.122 O(H)4-6III-V 67 0
46 PN H 2-29 PN 17 53 16.8248342351 -32 40 38.463634992     19.313   18.308 O(H) 50 0
47 PN M 2-19 PN 17 53 45.59 -29 43 46.9     16.976   15.973 O(H)6-8III-V 83 0
48 PN K 6-34 PN 17 54 41.10 -31 31 43.2           O(H)4-6 11 0
49 PN Sa 3-96 PN 17 55 45.05304 -15 03 42.8220           O-rich 43 2
50 PHR J1756-3342 PN 17 56 39.5 -33 42 31           O(H)3-4Vz 8 1
51 PHR J1757-2824 PN 17 57 42.2 -28 24 07           O(H) 8 1
52 BMP J1800-3407 PN 18 00 26.5 -34 07 49           O(H)4-5Vz 6 1
53 IC 4673 PN 18 03 18.4582267290 -27 06 22.726256000     13.50     O(H)8 109 0
54 PHR J1804-2913 PN 18 04 28.52 -29 13 57.2           O(H) 10 1
55 PN H 1-56 PN 18 07 53.8847964508 -29 44 34.330385860     15.00     O? 77 0
56 EM* AS 283 PN 18 11 35.1005488652 -28 22 36.727284875   11 13.70     B0I-III 73 0
57 PN H 1-65 PN 18 20 08.8470344549 -24 15 05.268870019   12 14.30     [WC11] 78 0
58 PN M 1-46 PN 18 27 56.3174034794 -15 32 54.437082009     12.83     O(H)7I(fc) 117 0
59 PN K 3-5 PN 18 31 45.8284415681 +04 05 09.329782037           ~ 30 0
60 PN H 2-48 PN 18 46 35.1189996080 -23 26 48.246734570     13     OIII-V 81 0
61 PN K 3-14 PN 18 48 32.8116619426 +10 35 50.715108457   10       O8-9 33 0
62 PN SB 20 PN 18 49 24.3 -19 52 16           O(H)3-4 12 1
63 PN Sa 1-8 PN 18 50 44.33 -13 31 02.7   12       O(H)4-8III 42 0
64 PPA J1855-2328 PN 18 55 04.8749142896 -23 28 12.794002412           O(H)6III-V 6 1
65 PN K 4-10 PN 18 59 03.7581598705 +20 37 01.120864829           O3-4 15 0
66 NGC 6742 PN 18 59 20.030 +48 27 55.24     16.567     O(H)III-V 55 0
67 PN Sp 4-1 PN 19 00 26.5472204499 +38 21 07.272597555       15.26   O? 31 0
68 PN A66 51 PN 19 01 01.3922011494 -18 12 15.320954210   15.30 15.42     O(H)3-5Vz 63 0
69 PN K 3-21 PN 19 02 40.3918321380 +14 28 48.793266057           ~ 23 0
70 IPHASX J190438.6+021424 PN 19 04 38.67 +02 14 22.2           B[e] 3 0
71 Hen 2-427 WR* 19 11 30.8750511254 +16 51 38.199008052   12.19 11.50     WN8h 323 0
72 PN K 4-19 PN 19 13 22.6021740229 +03 25 00.209008581           B1I 18 0
73 PN M 2-47 PN 19 13 34.5442935392 +04 38 04.012992594           O3-6 53 0
74 IPHASX J191716.4+033447 PN 19 17 16.4 +03 34 47           O(H)III-V(e) 4 0
75 IRAS 19170+1706 PN 19 19 18.7058105432 +17 11 48.876464105           O(H)9I 21 0
76 Hen 1-2 PN 19 26 37.7447812741 +21 09 26.940099455     16.7     O9-B0I 39 0
77 NAME PN AMU 1 PN 19 31 08.8798975280 +43 24 57.692809603   13.39 13.64 13.83   O(H)3Vz 20 2
78 PN K 3-36 PN 19 32 39.557 +07 27 51.57           O? 23 0
79 PN M 1-72 PN 19 41 33.9715116580 +17 45 17.446359908           ~ 50 0
80 IRAS 19459+3110 PN 19 47 51.91536 +31 18 18.3096           B0I 2 0
81 PN A66 68 PN 20 00 10.607 +21 42 55.43           ~ 27 0
82 PN Vy 2-3 PN 23 22 57.9041909556 +46 53 58.073615908           O(H)3-4I 81 0

    Equat.    Gal    SGal    Ecl

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2021.07.30-17:59:40

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