2004A&A...419.1111P


C.D.S. - SIMBAD4 rel 1.7 - 2020.12.03CET19:37:03

2004A&A...419.1111P - Astronomy and Astrophysics, volume 419, 1111-1122 (2004/6-1)

Radiation-driven winds of hot luminous stars. XV. Constraints on the mass-luminosity relation of central stars of planetary nebulae.

PAULDRACH A.W.A., HOFFMANN T.L. and MENDEZ R.H.

Abstract (from CDS):

We present a new model atmosphere analysis of nine central stars of planetary nebulae. This study is based on a new generation of realistic stellar model atmospheres for hot stars; state-of-the-art, hydrodynamically consistent, spherically symmetric model atmospheres that have been shown to correctly reproduce the observed UV spectra of massive Population I O-type stars. The information provided by the wind features (terminal velocity, mass loss rate) permits to derive the physical size of each central star, from which we can derive the stellar luminosity, mass, and distance, without having to assume a relation between stellar mass and luminosity taken from the theory of stellar structure and AGB and post-AGB evolution. The results of our analysis are quite surprising: we find severe departures from the generally accepted relation between post-AGB central star mass and luminosity.

Abstract Copyright:

Journal keyword(s): stars: atmospheres - stars: winds, outflows - stars: evolution - stars: fundamental parameters - stars: early-type

Simbad objects: 11

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Number of rows : 11

N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2021
#notes
1 * alf Cam s*b 04 54 03.0103983 +66 20 33.636467 3.47 4.34 4.29 4.18 4.18 O9Ia 639 1
2 IC 418 PN 05 27 28.2060343141 -12 41 50.282659007   9.78 13.0     O7fp 1004 2
3 NGC 2392 PN 07 29 10.7669120392 +20 54 42.478515772     9.68     O6f 699 1
4 * zet Pup BY* 08 03 35.04754 -40 00 11.3321 0.89 1.98 2.25 2.36 2.58 O4I(n)fp 1099 1
5 NGC 3242 PN 10 24 46.1335198512 -18 38 32.294434711   11.83 12.15     ~ 801 1
6 CPD-51 6744 PN 14 18 08.8856504204 -52 10 39.518062758   12.39 11.98     [WC] 148 0
7 HD 138403 PN 15 37 11.2073858949 -71 54 52.885863880   10.24 10.47 11.01   O8(f)ep 255 0
8 IC 4593 PN 16 11 44.5480003321 +12 04 17.033164436   10.91 10.84     O7fp 440 0
9 IC 4637 PN 17 05 10.47 -40 53 07.7     9.20     ~ 126 0
10 PN Tc 1 PN 17 45 35.2877697798 -46 05 23.713203258   11.30 11.49     PCyg 241 0
11 NGC 6826 PN 19 44 48.1500835472 +50 31 30.250916761   10.21 9.6     O6fp 701 0

    Equat.    Gal    SGal    Ecl

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2020.12.03-19:37:03

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