2000A&AS..145..467C

Query : 2000A&AS..145..467C

2000A&AS..145..467C - Astron. Astrophys., Suppl. Ser., 145, 467-472 (2000/September-0)

Dredge-up effects in Galactic and Magellanic planetary nebulae.

COSTA R.D.D., DE FREITAS PACHECO J.A. and IDIART T.P.

Abstract (from CDS):

Chemical abundances are reported for 23 planetary nebulae in the Small Magellanic Cloud. Average abundances agree with values found for HII regions, suggesting that progenitors of most of these objects have been formed in the last 1-2Gyr. The N/O vs. O/H anticorrelation is confirmed for Magellanic and galactic planetaries, and a more robust result is obtained if objects of similar ages (or masses) are grouped together. For a given class, such a negative correlation suggests that the surface enrichment due to dredge-up episodes is more efficient at lower metallicities, in agreement with recent computations.

Abstract Copyright: ∼

Journal keyword(s): galaxies: Magellanic Clouds, abundances - planetary nebulae

Simbad objects: 25

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Number of rows : 25
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 LHA 115-N 1 PN 00 23 58.6295947968 -73 38 03.974747928           ~ 49 0
2 LHA 115-N 2 PN 00 32 38.8692105240 -71 41 59.628264792   16.40       ~ 53 0
3 LHA 115-N 4 PN 00 34 21.93 -73 13 21.5   17.06 16.809   18.464 ~ 44 0
4 SMP SMC 4 PN 00 40 46.21 -75 16 20.8           ~ 14 0
5 LHA 115-N 5 PN 00 41 21.6981477336 -72 45 16.785012816   14.4 15.805   17.224 ~ 53 0
6 LHA 115-N 6 PN 00 41 27.7392128784 -73 47 06.468599004 16.82 16.84 15.82   16.92 ~ 60 0
7 SMP SMC 7 PN 00 42 28.16 -73 20 55.1     18.230   19.598 ~ 26 0
8 LHA 115-N 7 PN 00 43 25.305 -72 38 18.79     16.212   17.58 ~ 34 0
9 LHA 115-N 9 PN 00 43 36.6894984096 -73 02 26.704240836   14.66 14.4 15.87 15.35 O3-4 42 0
10 LIN 66 PN 00 45 20.68 -73 24 09.9     17.494   19.155 ~ 29 0
11 LHA 115-N 18 PN 00 46 59.647 -72 49 16.55     16.6     ~ 25 0
12 LHA 115-N 29 PN 00 48 36.526 -72 58 00.91 17.72 16.60 16.12 16.5 16.44 ~ 50 0
13 SMP SMC 12 PN 00 49 21.06 -73 52 58.6     18.536   17.983 ~ 17 0
14 LHA 115-N 38 PN 00 49 51.6394321128 -73 44 21.396914988   16.1 15.382   16.913 ~ 49 0
15 LHA 115-N 40 PN 00 50 35.06 -73 42 57.9     16.500   18.095 ~ 37 0
16 LHA 115-N 42 PN 00 51 27.14 -72 26 11.7   16.32 16.741   16.922 ~ 67 0
17 LHA 115-N 44 PN 00 51 56.3619687720 -71 24 44.377505784   15.98 15.2     ~ 45 0
18 LHA 115-N 47 PN 00 51 58.311 -73 20 31.87     16.158   16.17 ~ 49 0
19 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
20 LIN 239 PN 00 53 11.15 -72 45 07.6     16.432   17.873 ~ 36 0
21 LIN 305 PN 00 56 30.750 -72 27 02.00   17.14 17.32   18.023 ~ 39 0
22 LHA 115-N 67 PN 00 58 37.095 -71 35 48.80   16.3 16.4 15.27 17.66 ~ 92 0
23 LIN 343 PN 00 58 42.34 -72 57 00.0   16.70 16.910   18.387 ~ 30 0
24 LIN 357 PN 00 59 40.5128319264 -71 38 15.143769276   17.48 17.856   18.581 ~ 37 0
25 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0

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