Astronomy and Astrophysics, volume 640A, 10-10 (2020/8-1)
Catalogue of the central stars of planetary nebulae. Expanded edition.
WEIDMANN W.A., MARI M.B., SCHMIDT E.O., GASPAR G., MILLER BERTOLAMI M.M., OIO G.A., GUTIERREZ-SOTO L.A., VOLPE M.G., GAMEN R. and MAST D.
Abstract (from CDS):
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 logL*, logTeff, and logg, 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.
© ESO 2020
catalogs - planetary nebulae: general - stars: evolution
VizieR on-line data:
<Available at CDS (J/A+A/640/A10): catalog.dat ph-para.dat refs.dat>
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