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Planetary nebulae as standard candles. IV - A test in the Leo I groupIn this paper, PN are used to determine accurate distances to three galaxies in the Leo I group - The E0 giant elliptical NGC 3379, its optical companion, the SB0 spiral NGC 3384, and the smaller E6 elliptical NGC 3377. In all three galaxies, the luminosity-specific PN number densities are roughly the same, and the derived stellar death rates are in remarkable agreement with the predictions of stellar evolution theory. It is shown that the shape of the forbidden O III 5007 A PN luminosity function is the same in each galaxy and indistinguishable from that observed in M31 and M81. It is concluded that the PN luminosity function is an excellent standard candle for early-type galaxies.
Document ID
19890066473
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Ciardullo, Robin
(Kitt Peak National Observatory Tucson, AZ, United States)
Jacoby, George H.
(Kitt Peak National Observatory Tucson, AZ, United States)
Ford, Holland C.
(Johns Hopkins University; Space Telescope Science Institute, Baltimore, MD, United States)
Date Acquired
August 14, 2013
Publication Date
September 15, 1989
Publication Information
Publication: Astrophysical Journal, Part 1
Volume: 344
ISSN: 0004-637X
Subject Category
Astrophysics
Accession Number
89A53844
Funding Number(s)
CONTRACT_GRANT: NAGW-421
CONTRACT_GRANT: NAS5-29293
Distribution Limits
Public
Copyright
Other

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