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Artículo

Catalogue of the central stars of planetary nebulae: Expanded edition

Weidmann, Walter AlfredoIcon ; Mari, M. B.; Schmidt, Eduardo OsvaldoIcon ; Gaspar, GaiaIcon ; Miller Bertolami, Marcelo MiguelIcon ; Oio, Gabriel AndrésIcon ; Gutiérrez Soto, L. A.; Volpe, Maria GabrielaIcon ; Gamen, Roberto ClaudioIcon ; Mast, DamianIcon
Fecha de publicación: 08/2020
Editorial: EDP Sciences
Revista: Astronomy and Astrophysics
ISSN: 0004-6361
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Astronomía

Resumen

Planetary nebulae represent a potential late stage of stellar evolution, however, their central stars (CSPNe) are relatively faint and, therefore, pertinent information is available for merely < 20 of the Galactic sample. Consequently, the literature was surveyed to construct a new catalogue of 620 CSPNe featuring important spectral classifications and information. The catalogue supersedes the existing iteration by 25 and includes physical parameters such as luminosity, surface gravity, temperature, magnitude estimates, and references for published spectra. The marked statistical improvement enabled the following pertinent conclusions to be determined: the H-rich/H-poor ratio is 2:1, there is a deficiency of CSPNe with types [WC 5-6], and nearly 80 of binary central stars belong to the H-rich group. The last finding suggests that evolutionary scenarios leading to the formation of binary central stars interfere with the conditions required for the formation of H-poor CSPN. Approximately 50 of the sample with derived values of log L⋆ , log Teff, and log g, exhibit masses and ages consistent with single stellar evolutionary models. The implication is that single stars are indeed able to form planetary nebulae. Moreover, it is shown that H-poor CSPNe are formed by higher mass progenitors. The catalogue is available through the Vizier database.
Palabras clave: CATALOGS , PLANETARY NEBULAE: GENERAL , STARS: EVOLUTION
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/138349
URL: https://www.aanda.org/articles/aa/full_html/2020/08/aa37998-20/aa37998-20.html#a
DOI: https://doi.org/10.1051/0004-6361/202037998
URL: https://arxiv.org/abs/2005.10368
Colecciones
Articulos(CCT - CORDOBA)
Articulos de CTRO.CIENTIFICO TECNOL.CONICET - CORDOBA
Articulos(IATE)
Articulos de INST.DE ASTRONOMIA TEORICA Y EXPERIMENTAL
Citación
Weidmann, Walter Alfredo; Mari, M. B.; Schmidt, Eduardo Osvaldo; Gaspar, Gaia; Miller Bertolami, Marcelo Miguel; et al.; Catalogue of the central stars of planetary nebulae: Expanded edition; EDP Sciences; Astronomy and Astrophysics; 640; 8-2020; 1-54
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