THE INVESTIGATION OF THE FON3 CATALOGUE DATA USING WIELEN METHOD

Journal Title: Odessa Astronomical Publications - Year 2016, Vol 29, Issue

Abstract

The method described by Wielen is very efficient provided the data under comparison are independent quantities. In this case, dispersion of position or magnitude differences is equal to the sum of their dispersions, because the index of correlation between the data is set zero. Using three or more independent catalogues, it is easy to estimate the external accuracy of each of them. For the cross-identification of objects, we have used the search window with a 0.5 arcsec radius. Final dispersions were calculated for every sub-range of magnitudes, for the stars with individual differences of position and magnitude exceeding three standard deviations being rejected. The following catalogues have been used for comparison with the FON3: XPM, PPMXL and UCAC4 in the Northern hemisphere. The dispersions of positions or magnitudes are calculated with the use of about 18 million common stars from these catalogues. The results presented in this work is consistent with analysis of the random errors of positions and magnitude that had been described by authors of FON3 catalog.

Authors and Affiliations

V. S. Akhmetov

Keywords

Related Articles

PARAMETERS OF THE TRANSIENT SIGNALS DETECTED IN THE DECAMETER SURVEY OF THE NORTHERN SKY

Decameter all-sky Survey has been running at UTR-2 radio telescope over the past few years, about 70% of observational data are processed. The Survey is aimed at searching for pulsars and transient sources. Present work...

X-RAY EMISSION OF ICRF SOURCES

Considering increasing requirements to the coordinates measurement precision by the end of XX century International Astronomical Union commenced implementation of the new astrometric system ICRF (International Celestial...

SPECTROSCOPICAL STUDY OF FAINT SOUTHERN CEPHEIDS WITH SOUTHERN AFRICAN LARGE TELESCOPE (SALT). FIRST RESULTS.

First Cepheids observations using echelle-spectrograph HRS fed by Southern African Large Telescope (SALT) were realized during 2016. All spectra have been obtained in the medium resoltion mode (R≈31000–41000) wth high S/...

ON THE INFLUENCE OF MHD TURBULENCE ON THE STRUCTURE OF THE RADIOGALAXY LOBES

There is considered the evolution of the shape for the radio galaxy lobes of FRI and FRII types from the point of view on changing the configuration of large-scale structure of magnetic field, and energy transport in the...

ENVIRONMENTAL PROPERTIES OF GALAXIES AT Z < 0.1 FROM THE SDSS VIA THE VORONOI TESSELLATION

The aim of our work was to investigate the environmental density of galaxies fromthe SDSS DR9 at z < 0.1 using the 3D Voronoi tessellation. The inverse volume of the Voronoi cell was chosen as a parameter of local enviro...

Download PDF file
  • EP ID EP374799
  • DOI 10.18524/1810-4215.2016.29.85125
  • Views 80
  • Downloads 0

How To Cite

V. S. Akhmetov (2016). THE INVESTIGATION OF THE FON3 CATALOGUE DATA USING WIELEN METHOD. Odessa Astronomical Publications, 29(), 116-119. https://europub.co.uk/articles/-A-374799