Mass-to-luminosity relation for galaxy pairs and triplets in the different environment

Heading: 
Extragalactic Astronomy and Cosmology
1Melnyk, OV, 1Elyiv, AA, 1Vavilova, IB
1Main Astronomical Observatory of the National Academy of Sciences of Ukraine, Kyiv, Ukraine
Kinemat. fiz. nebesnyh tel (Online) 2009, 25(1):64-71
Language: Russian
Abstract: 

We estimated the dark matter content in galaxy pairs and triplets selected from SDSS DR5 by the high order Voronoi tesselation method. The median mass-to-luminosity relations Mvir/L are the following: 12 M☉/L☉ for isolated pairs, 44 M☉/L☉ for isolated triplets; 7(8) M☉/L☉ for compact pairs (triplets) with the characteristic distance between galaxies R

Keywords: galaxy pairs, galaxy triplets

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