| Issue |
A&A
Volume 526, February 2011
|
|
|---|---|---|
| Article Number | A6 | |
| Number of page(s) | 16 | |
| Section | Catalogs and data | |
| DOI | https://doi.org/10.1051/0004-6361/200913984 | |
| Published online | 13 December 2010 | |
Central stars of planetary nebulae: New spectral classifications and catalogue⋆
1
Observatorio Astronómico Córdoba, Universidad Nacional de
Córdoba, Argentina
e-mail: walter@mail.oac.uncor.edu
2
Instituto de Astrofísica de La Plata, CCT La Plata-CONICET,
Universidad Nacional de La Plata,
Argentina
e-mail: rgamen@fcaglp.unlp.edu.ar
Received:
29
December
2009
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
© ESO, 2010
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