2010A&A...520A..45D

Query : 2010A&A...520A..45D

2010A&A...520A..45D - Astronomy and Astrophysics, volume 520, A45-45 (2010/9-2)

Discrete source survey of 6 GHz OH emission from PNe and pPNe and first 6 GHz images of K 3-35.

DESMURS J.-F., BAUDRY A., SIVAGNANAM P., HENKEL C., RICHARDS A.M.S. and BAINS I.

Abstract (from CDS):

The aim of this study is to investigate the physical properties of molecular envelopes of planetary nebulae (PNe) in their earliest stages of evolution. Using the 100 m telescope at Effelsberg, we have undertaken a high sensitivity discrete source survey for the first excited state of OH maser emission (J=5/2, 2Π3/2 at 6GHz) in the direction of PNe and proto-planetary nebulae (PNe) exhibiting 18cm OH emission (main and/or satellite lines), and we further validate our detections using the Nancay radio telescope at 1.6-1.7GHz and MERLIN interferometer at 1.6-1.7 and 6 GHz. Two sources have been detected at 6035MHz (5cm), both of them are young (or very young) PNe. The first one is a confirmation of the detection of a weak 6035MHz line in Vy 2-2. The second one is a new detection, in K 3-35, which was already known to be an exceptional late type star because it exhibits 1720MHz OH emission. The detection of 6035MHz OH maser emission is confirmed by subsequent observations made with the MERLIN interferometer. These lines are very rarely found in evolved stars. The 1612MHz masers surround but are offset from the 1720 and 6035MHz masers which in turn lie close to a compact 22GHz continuum source embedded in the optical nebula.

Abstract Copyright: ∼

Journal keyword(s): stars: AGB and post-AGB - masers - techniques: interferometric - radio lines: stars

Simbad objects: 62

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Number of rows : 62
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 NAME W 3 OH HII 02 27 04.1 +61 52 22           ~ 1026 2
2 3C 84 Sy2 03 19 48.1599902040 +41 30 42.108850836   13.10 12.48 11.09   ~ 4007 3
3 PN M 4-18 PN 04 25 50.8356162744 +60 07 12.780446700   14.22 13.96     [WC11] 181 0
4 RAFGL 618 pA* 04 42 53.6242032600 +36 06 53.400902220   16.32   12.59   C-rich 1001 0
5 IC 418 PN 05 27 28.2059533560 -12 41 50.282287764   9.405 9.010 10.118   O7fp 1031 2
6 NAME Flame Nebula HII 05 41 42.7 -01 54 44           ~ 703 1
7 HD 44179 pA* 06 19 58.2185496 -10 38 14.706068 9.51 9.33 9.02     B9Ib/II 765 0
8 NGC 2440 PN 07 41 55.4 -18 12 32   11.469 10.104     ~ 652 2
9 OH 231.8+04.2 OH* 07 42 16.947 -14 42 50.20           M10III+A 533 0
10 V* AU Gem Mi* 07 45 27.4430166816 +30 46 41.342895012       11.34   M10 32 0
11 IRAS 09371+1212 pA* 09 39 53.96 +11 58 52.6           K7II/III 160 0
12 IRAS 17347-3139 PN 17 38 00.61 -31 40 55.2           ~ 59 1
13 Hen 3-1475 PN 17 45 14.1819342984 -17 56 46.778166204       12.733   B7e 198 0
14 IRAS 17433-1750 s*r 17 46 15.61848 -17 51 47.9340           M2I 21 1
15 IRAS 18043-2116 OH* 18 07 20.86584 -21 16 12.1116           O-rich 41 0
16 PN MaC 1-10 PN 18 09 12.4110798682 -25 04 34.426975990           [WC8] 49 0
17 OH 012.3+00.1 OH* 18 12 03.51000 -18 14 24.0684           O-rich 12 0
18 IRAS 18105-1935 OH* 18 13 29.9171384794 -19 35 03.005668943           O-rich 16 0
19 OH 015.7+00.8 OH* 18 16 25.77744 -14 55 13.7388           O-rich 74 0
20 OH 012.8-00.9 OH* 18 16 49.21368 -18 15 01.6560           O-rich 50 0
21 OH 020.8+00.5 OH* 18 27 23.82144 -10 30 22.4712           O-rich 27 0
22 OH 017.7-02.0 pA* 18 30 30.703 -14 28 57.04           O-rich 141 1
23 OH 024.0-00.2 OH* 18 35 34.54824 -08 02 40.2000           O-rich 9 0
24 IRC +10365 OH* 18 37 19.2583829328 +10 25 42.492195300       9.97   M9 149 0
25 OH 026.5+00.6 OH* 18 37 32.50920 -05 23 59.1936           O-rich 301 1
26 PN K 3-9 Sy* 18 40 24.1837249512 -08 43 46.321900536         12.47 M3 35 1
27 IRAS 18491-0207 pA* 18 51 45.89304 -02 04 10.6572           ~ 19 0
28 IRAS 18585+0900 OH* 19 00 53.8208536488 +09 05 02.722858728           O-rich 21 1
29 OH 037.1-00.8 OH* 19 02 06.28560 +03 20 15.9900           O-rich 74 0
30 IRAS 19052+1431 OH* 19 07 33.9541245851 +14 36 47.364274109         13.905 ~ 11 0
31 OH 042.3-00.1 OH* 19 09 08.32632 +08 16 33.6504           O-rich 87 0
32 HD 179821 pA* 19 13 58.6082398776 +00 07 31.935181836 10.81 9.694 8.19     G4_0-Ia 239 0
33 IRAS 19200+1035 mul 19 22 25.2 +10 40 55           ~ 2 0
34 PN K 3-33 PN 19 22 26.6674857936 +10 41 21.260931252           ~ 39 1
35 NGC 6790 PN 19 22 56.972976 +01 30 46.40112   12.247 10.504 12.684   wels 322 0
36 NAME W 51 North Rad 19 23 40.0 +14 30 51           ~ 159 0
37 PN Vy 2-2 PN 19 24 22.2390166933 +09 53 56.259102426   14.02 12.65 13.38   O-rich 261 0
38 ICRF J192559.6+210626 BLL 19 25 59.60535459 +21 06 26.1620257           ~ 203 1
39 IRC +10420 pA* 19 26 48.0979492536 +11 21 16.758531216   13.98 11.66     F8Ia+e 477 0
40 PN K 3-35 PN 19 27 43.9749997920 +21 30 02.907990216           O-rich 149 0
41 OH 053.6-00.2 pA* 19 31 25.3792354239 +18 13 10.137422985           B? 34 0
42 OH 057.5+01.8B C* 19 31 45.5807303448 +22 33 42.841426356           C 25 0
43 ICRF J193510.4+203154 Bz? 19 35 10.47291 +20 31 54.1542           ~ 47 1
44 Min 1-92 pA* 19 36 18.9295687968 +29 32 49.785288144 12.13 12.35 11.75 11.54   B0.5IV[e] 254 0
45 RAFGL 5408S OH* 19 37 23.9884680624 +20 36 57.840440148           O-rich 26 0
46 IRAS 19437+2410 HII 19 45 52.471 +24 17 42.05           ~ 8 0
47 IRAS 19467+2213 OH* 19 48 52.47480 +22 21 19.2276           ~ 18 0
48 HD 187885 pA* 19 52 52.7033593752 -17 01 50.289441096   9.25 8.68 8.32   F2/6Ia 179 0
49 IRAS 19566+3423 pA* 19 58 32.27544 +34 31 33.7260           O-rich 37 0
50 [KCW94] 069.540-00.975 HII 20 10 09.0 +31 31 35           ~ 168 1
51 IRAS 20081+3122 Y*O 20 10 09.036 +31 31 34.14           ~ 171 0
52 Onsala 1 cor 20 10 09.2036 +31 31 36.090           ~ 188 0
53 IC 4997 PN 20 20 08.7557973960 +16 43 53.698933380   11.94 11.15     [WC7/8] 544 0
54 RAFGL 2591 Y*O 20 29 24.8230 +40 11 19.590           ~ 622 0
55 IRAS 20406+2953 OH* 20 42 45.9542443488 +30 04 06.480845940           O-rich 31 1
56 NML Cyg s*r 20 46 25.5392819088 +40 06 59.464289232           M7/8 508 0
57 V* V1610 Cyg pA* 21 02 18.27 +36 41 37.0           F5Iae 873 1
58 NGC 7027 PN 21 07 01.571952 +42 14 10.47120   10.358 8.831 10.157   ~ 2458 1
59 IC 5117 PN 21 32 30.96912 +44 35 47.5404           ~ 301 1
60 IRAS 22036+5306 pA* 22 05 30.28608 +53 21 32.7888           F4III 78 0
61 V* PZ Cas s*r 23 44 03.2814215136 +61 47 22.190200476 12.80 11.48 8.90 6.08 3.90 M3Ia 202 0
62 PN M 2-56 pA* 23 56 36.4049726352 +70 48 18.246610008   19.81   17.27 17.64 Be 93 0

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