On the determination of absolute magnitude zero-points from HIPPARCOS parallaxes
DOI: 10.1046/j.1365-8711.1998.02066.x
Bibcode: 1998MNRAS.301..582K
Koen, Chris; Laney, Dave
South Africa
Abstract
The period-luminosity (PL) relation zero-point determination from Hipparcos trigonometric parallaxes of Cepheids is contentious. It is shown that the method used by Feast & Catchpole is equivalent to a standard minimization of sum of squares, and that it is free of Lutz-Kelker bias. The same technique is applied to RR Lyrae and field HB star data, the PL relation being replaced by a luminosity-metallicity relation.
1998
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Monthly Notices of the Royal Astronomical Society
Hipparcos
34