Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983mnras.202..367d&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 202, Jan. 1983, p. 367-378.
Astronomy and Astrophysics
Astronomy
12
Distance, Hubble Constant, Magnitude, Red Shift, Spiral Galaxies, Luminosity, Supernovae, Truncation Errors
Scientific paper
An argument is made that the strong Malmquist bias claimed to exist in the extragalactic distance scale derived by the author is nonexistent. A distinction is made between Malmquist effect in galactic samples and a Malmquist bias in derived distances; the former does not lead to the latter as long as the distance indicator has a small dispersion and is free of distance-dependent systematic errors. The Malmquist bias in the V distance scale is much smaller than the Malmquist effect in the V sample. The residual bias is minimized by the use of a nonlinear calibration relation and by an appropriate selection rule. The claim of bias also depends on an irrelevant application of the Schechter general luminosity function, the unwarranted assumption that the velocity-distance relation is linear and isotropic at small redshifts, and the use of a graphical presentation where the two coordinates are correlated.
No associations
LandOfFree
Extragalactic distance scale, Malmquist bias and Hubble constant does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Extragalactic distance scale, Malmquist bias and Hubble constant, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Extragalactic distance scale, Malmquist bias and Hubble constant will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1197844