Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992pasp..104..599j&link_type=abstract
Astronomical Society of the Pacific, Publications (ISSN 0004-6280), vol. 104, no. 678, Aug. 1992, p. 599-662.
Astronomy and Astrophysics
Astronomy
403
Astrometry, Distance Measuring Equipment, Galaxies, Cepheid Variables, Elliptical Galaxies, Globular Clusters, Novae, Planetary Nebulae, Supernovae
Scientific paper
An overview is presented of seven of the most reliable indicators used for deriving distances to galaxies as far away as 100 MPC: globular cluster luminosity functions (GCLFs), novae, type-IA supernovae (SN Ia), H I linewidth (Tully-Fisher) relations, planetary-nebular luminosity functions (PNLFs), surface-brightness fluctuations (SBFs), and fundamental-plane relationships for elliptical galaxies (Dn-sigma). The use of Cepheid variables is examined, since these serve to set zero points for most of the methods. Particular attention is paid to the uncertainties inherent in these methods. These uncertainties are tested by comparing distances derived with each technique to distances derived from SBFs. It is found that there are small systematic offsets between the PLNF, GCLF, and SBF methods, with the PNLF and GCLF distances being on average 6 and 13 percent larger than those of the SBF method. A summary of distances to the Virgo cluster is also presented.
Branch David
Ciardullo Robin
Davies Roger L.
Harris William E.
Jacoby George H.
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