Volume 526, February 2011
|Number of page(s)||16|
|Section||Catalogs and data|
|Published online||13 December 2010|
Central stars of planetary nebulae: New spectral classifications and catalogue⋆
Observatorio Astronómico Córdoba, Universidad Nacional de
2 Instituto de Astrofísica de La Plata, CCT La Plata-CONICET, Universidad Nacional de La Plata, Argentina
Accepted: 24 October 2010
Context. There are more than 3000 confirmed and probable known Galactic planetary nebulae (PNe), but central star spectroscopic information is available for only 13% of them.
Aims. We undertook a spectroscopic survey of central stars of PNe at low resolution and compiled a large list of central stars for which information was dispersed in the literature.
Methods. We observed 45 PNs using the 2.15 m telescope at Casleo, Argentina.
Results. We present a catalogue of 492 confirmed and probable CSPN and provide a preliminary spectral classification for 45 central star of PNe. This revises previous values of the proportion of CSPN with atmospheres poor in hydrogen in at least 30% of cases and provide statistical information that allows us to infer the origin of H-poor stars.
Key words: surveys / planetary nebulae: general / stars: evolution
Based on data collected at the Complejo Astronómico El Leoncito (CASLEO), which is operated under agreement between the Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina y Universidades Nacionales de La Plata, Córdoba y San Juan, Argentina.
© ESO, 2010
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