1997A&A...324..674P


Query : 1997A&A...324..674P

1997A&A...324..674P - Astronomy and Astrophysics, volume 324674-682 (1997/8-2)

Spectroscopic study of the planetary nebulae with Wolf-Rayet nuclei in the Magellanic Clouds.

PENA M., RUIZ M.T. and TORRES-PEIMBERT S.

Abstract (from CDS):

UV and optical spectrophotometric data of planetary nebulae with WR nuclei in the Magellanic Clouds are presented. Analysis of the nebular characteristics shows that the ionized gas, in all the objects, is extremely C-rich, probably due to contamination with freshly-made C from stellar nucleosynthesis. Very high electron densities are found (Ne≥104cm–3) which are interpreted as an indication of youth. The central stars are C-rich, with spectral types in the range from WC4-5 to WC 8. The spectral type distribution is totally different from that found for galactic planetary nebulae with WR nuclei. Estimates of the stellar visual magnitudes and temperatures are presented. Stellar temperatures over 60000K were derived for all the objects, with some cases exceeding 100000K. These high temperatures however do not produce high excitation nebulae.

Abstract Copyright: ∼

Journal keyword(s): Magellanic Clouds - planetary nebulae: general - ISM: abundances - stars: Wolf-Rayet - stars: fundamental parameters

Simbad objects: 9

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Number of rows : 9
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 6 PN 00 41 27.7392128784 -73 47 06.468599004 16.82 16.84 15.82   16.92 ~ 60 0
2 LIN 302 PN 00 56 19.4731005696 -72 06 58.158479268   16.0 17.609   17.792 ~ 27 0
3 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 7988 0
4 LHA 120-N 110 PN 05 11 23.692 -70 01 57.36 15.971 16.222 15.008 15.53 16.678 [WC4] 45 0
5 LHA 120-N 133 PN 05 24 20.7467383224 -70 05 01.601773404 15.939 16.236 15.368 15.120 16.556 [WC4/5] 88 0
6 IRAS F05258-7343 pA? 05 24 35.9730395808 -73 40 40.240094808   16.48     16.64 WC 65 0
7 SV* HV 5967 PN 05 36 20.7215081304 -67 18 07.658262756 15.56 16.225 14.948   16.558 [WN4.5:] 147 0
8 IRAS 05551-6528 El* 05 55 13.6808450040 -65 28 23.221220232 18.011 18.795 18.100   17.921 ~ 19 0
9 LM 1-64 PN 06 21 04.7093063976 -66 08 00.726299376           ~ 18 0

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