Bibcode
Galera-Rosillo, R.; Corradi, R. L. M.; Mampaso, A.; Balick, B.; Kwitter, K. B.; García-Rojas, J.
Bibliographical reference
Highlights on Spanish Astrophysics X, Proceedings of the XIII Scientific Meeting of the Spanish Astronomical Society held on July 16-20, 2018, in Salamanca, Spain, ISBN 978-84-09-09331-1. B. Montesinos, A. Asensio Ramos, F. Buitrago, R. Schödel, E. Villaver, S. Pérez-Hoyos, I. Ordóñez-Etxeberria (eds.) p. 406-406
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3
2019
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0
Description
The Planetary Nebulae Luminosity Function (PNLF) is an important
standard candle on the extragalactic distance ladder. Its use is based
on the empirical evidence that the [OIII]5007Å luminosity of PNe
reaches a maximum value, M*, invariant with galaxy type and with a small
dependence on metallicity. The PNLF method, applied to more than 50
galaxies with satisfactory results, is well established, but it lacks of
a theoretical interpretation. Despite the relevance of the topic,
thorough spectroscopic studies of PNe at the tip of the PNLF are still
missing. As part of our systematic effort to characterize the properties
of the brightest PNe and their progenitors, we obtained deep optical
spectra of a sample of PNe in two galaxies with different metallicities:
8 PNe in M31 (Z/Z_{⊙}˜ 1) using OSIRIS at the 10mGTC and 4 PNe
in LMC (Z/Z_{⊙}˜ 0.5) withFORS2, at the VLT. The results of
our analysis will be presented in Galera-Rosillo et al. I and II (in
prep.).