2007ApJ...665..341L

Query : 2007ApJ...665..341L

2007ApJ...665..341L - Astrophys. J., 665, 341-354 (2007/August-2)

Optically thick radio cores of narrow-waist bipolar nebulae.

LEE T.-H., LIM J. and KWOK S.

Abstract (from CDS):

We report our search for optically thick radio cores in 16 narrow-waist bipolar nebulae. Optically thick cores are a characteristic signature of collimated ionized winds. Eleven northern nebulae were observed with the Very Large Array (VLA) at 1.3 and 0.7 cm, and five southern nebulae were observed with the Australia Telescope Compact Array (ATCA) at 6 and 3.6 cm. Two northern objects, 19W32 and M1-91, and three southern objects, He 2-25, He 2-84, and Mz 3, were found to exhibit a compact radio core with a rising spectrum consistent with an ionized jet. Such jets have been seen in M2-9 and may be responsible for shaping bipolar structure in planetary nebulae.

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Journal keyword(s): ISM: Planetary Nebulae: General - Radio Continuum: Stars - Stars: AGB and Post-AGB - Stars: Evolution - Stars: Mass Loss - Stars: Winds, Outflows

Simbad objects: 18

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Number of rows : 18
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 IRAS 07131-0147 pA* 07 15 41.6970462624 -01 52 41.689711632           M5III 31 0
2 NGC 2392 PN 07 29 10.7671398096 +20 54 42.474888072     9.68     O6f 740 2
3 PN M 1-16 PN 07 37 18.90193 -09 38 47.9580   14.959 13.393 14.669   ~ 188 0
4 NGC 2818A PN 09 16 01.4901525600 -36 37 37.516376856           ~ 239 1
5 WRAY 16-40 PN 09 18 01.3172902776 -54 39 29.165596128   14 15.00     ~ 81 0
6 CD-56 2932 PN 09 43 25.6321182358 -57 16 55.530993175   11.851 11.171 11.206   A2II 130 0
7 WRAY 16-115 PN 12 28 46.8457795246 -63 44 37.072611293     15.70     ~ 59 0
8 PN Th 2-B PN 13 28 38.8514280930 -63 49 46.321978384       15.72 14.54 ~ 39 0
9 PN Mz 3 PN 16 17 13.3915382496 -51 59 10.711893480   10.8 14.00     O9.5 359 0
10 PN M 2-9 PN 17 05 37.96152 -10 08 32.5068           ~ 532 0
11 NGC 6302 PN 17 13 44.5 -37 06 11           O-rich 821 2
12 ESO 455-139 PN 17 39 02.9171861568 -28 56 35.634293412     17.2     ~ 74 0
13 PN Hb 5 PN 17 47 56.20 -29 59 39.6   10.50 10.78     ~ 274 0
14 NGC 6537 PN 18 05 13.104 -19 50 34.88     13.58     ~ 438 1
15 PN M 3-28 PN 18 32 41.288 -10 05 50.03   15.6       ~ 96 0
16 Hen 2-437 PN 19 32 57.6040534728 +26 52 43.087922580           ~ 98 1
17 PN M 2-48 PN 19 50 28.52520 +25 54 29.5452           ~ 88 0
18 NGC 7026 PN 21 06 18.5723414928 +47 51 06.774735780   15.33 15.1     [WC3] 427 1

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