Central stars of planetary nebulae: New spectral classifications and catalogue

作者：Weidmann W A^*; Gamen R

来源：Astronomy & Astrophysics, 2011, 526: A6.

DOI：10.1051/0004-6361/200913984

• surveys
• planetary nebulae: general
• stars: evolution

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.

• 出版日期2011-2