1996A&A...306..766S

Query : 1996A&A...306..766S

1996A&A...306..766S - Astronomy and Astrophysics, volume 306766-770 (1996/2-3)

Search for new pulsating OVI central stars of planetary nebulae.

SILVOTTI R., BARTOLINI C. and STANGHELLINI L.

Abstract (from CDS):

A photoelectric monitoring program has been applied, during the last four years, to five central stars of planetary nebulae (PNNs) with strong OVI λ3811-34 A emission. NGC6905 and, marginally, NGC2452, show intrinsic luminosity variations, while NGC7026, IC2003 and NGC1501 have constant luminosity within a few mmag. Photometric data have been analyzed with the best available packages for power-spectra reductions. Both pulsators have periods and physical characteristics well encompassed by the theoretical pulsational models relative to these stars.

Abstract Copyright: ∼

Journal keyword(s): stars: post-AGB - stars: oscillations - planetary nebulae

Simbad objects: 8

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Number of rows : 8
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 IC 2003 PN 03 56 21.9884187048 +33 52 30.759977028   13.11 11.87 13.44   [WC3?] 261 0
2 NGC 1501 PN 04 06 59.3920909320 +60 55 14.278542024   15.17 13.0     [WO4] 314 1
3 NGC 2452 PN 07 47 26.2649505144 -27 20 06.819982188   17.9 12.20     [WO1] 263 0
4 V* GW Vir WD* 12 01 45.9731868264 -03 45 40.628670300   14.87 15.04     DOQZ1 505 0
5 PG 1707+427 WD* 17 08 47.6869215528 +42 41 00.558430656           PG1159 120 0
6 NGC 6905 PN 20 22 22.9919225472 +20 06 16.285052088   16.3 14.5     [WC3] 362 0
7 NGC 7026 PN 21 06 18.5723414928 +47 51 06.774735780   15.33 15.1     [WC3] 427 1
8 MWP 1 PN 21 17 08.2817782392 +34 12 27.415995372   12.731 13.082 13.379   PG1159 199 0

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