Journal of Physical Studies 14(3), Article 3901 [7 pages] (2010)
DOI: https://doi.org/10.30970/jps.14.3901

THE INFLUENCE OF MEASUREMENT ERRORS ON THE COSMOLOGICAL DECELERATION PARAMETER OBTAINED FROM THE SEMIRELATIVISTIC MODEL OF COLLECTIVE GALACTIC MOTION

S. L. Parnovsky¹, A. S. Parnowski²
¹Astronomical Observatory of Kyiv Taras Shevchenko National University,
Observatorna St., 3a, Kyiv, 04053, Ukraine, e-mail: par@observ.univ.kiev.ua
²Space Research Institute NASU \& NSAU,
prosp. Akad. Glushkova, 40, block 4/1, Kyiv-187, 03680 MSP, Ukraine
e-mail: parnowski@gmail.com

We use Monte Carlo simulations to demonstrate that the deviations of the parameters of the semirelativistic model of collective motion of flat edge-on spiral galaxies are caused by measurement errors in angular diameters and HI line widths of galaxies. This effect is related to the well-known Malmquist bias.

PACS number(s): 98.62.Py; 98.80.Es; 02.70.Uu