Mathematics – Probability
Scientific paper
Nov 1981
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981mnras.197..393l&link_type=abstract
Monthly Notices of the Royal Astronomical Society, vol. 197, Nov. 1981, p. 393-412. No. AST-79-09098;
Mathematics
Probability
8
Astronomical Catalogs, Astronomical Observatories, Error Analysis, Statistical Analysis, Stellar Parallax, Calibrating, Data Acquisition, Probability Distribution Functions, Stellar Magnitude, Stellar Spectra
Scientific paper
The relative parallaxes determined by five major General Catalogue observatories (Allegheny, McCormick, Cape, Yale and Greenwich) have been inter-compared to investigate their systematic differences. Special care has been taken to examine the data critically for selection effects and to test quantitatively the statistical significance of all results obtained. Most systematic differences between observatories are not statistically significant, or are likely to be due to selection effects. The classical 'observatory corrections' are neither statistically nor physically justified. The Allegheny-Yale differences are examined in detail, confirming the need to correct the Allegheny parallaxes for their systematic apparent magnitude effect, but demonstrating the general futility of more complex observatory corrections. The intercomparisons yield external error estimates which agree with most recent determinations. These results indicate possible precepts for the new Yale Parallax Catalogue, and suggest that parallax observers should adopt a system of standard stars to help calibrate future parallax work.
Hanson Robert B.
Lutz Thomas E..
Marcus Allan H.
Nicholson Wayne L.
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