An extensive search for planetary nebulae in M33

Details An extensive search for planetary nebulae in M33 An extensive search for planetary nebulae in M33

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000immm.proc..119p&link_type=abstract

The interstellar medium in M31 and M33. Proceedings 232. WE-Heraeus Seminar, 22-25 May 2000, Bad Honnef, Germany. Edited by El

Astronomy and Astrophysics

Astrophysics

Scientific paper

The importance of the study of Planetary Nebulae (PNe) in our Galaxy and in external galaxies is outlined, with the aim of highlighting how the combined study of galactic and extragalactic PNe can bring a substantial contribution to our understanding of the late stages of stellar evolution and of related astrophysical topics. We then illustrate the work we have done on M33, resulting in some 134 new candidates PNe. This allowed us to construct a luminosity function (PNLF), from which a distance of M33 very close to the one derived with the Cepheids method (840 kpc) could be obtained, confirming the validity of the PNLF method to derive distances of galaxies.

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