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- W2083867650 startingPage "37" @default.
- W2083867650 abstract "Aims. We use the 2dF Galaxy Redshift Survey to derive the luminosity function (LF) of the first-ranked (brightest) group /cluster galaxies, the LF of second-ranked, satellite and isolated g alaxies, and the LF of groups of galaxies. Methods. We investigate the LFs of different samples in various environments: in voids, filaments, superclusters and supercluster cores. We compare the derived LFs with the Schechter and double-power-law analytical expressions. We also analyze the luminosities of isolated galaxies. Results. We find strong environmental dependency of luminosity funct ions of all populations. The luminosities of first-ranked galaxies have a lower limit, depending on the global environment (higher in supercluster cores, and absent in voids). The LF of secondranked galaxies in high-density regions is similar to the LF of first-ranked galaxies in a lower-density environment. Th e brightest isolated galaxies can be identified with first-ranked galaxi es at distances where the remaining galaxies lie outside the observational window used in the survey. Conclusions. The galaxy and cluster LFs can be well approximated by a double-power-law; the widely used Schechter function does not describe well the bright end and the bend of the LFs. Properties of the LFs reflect di fferences in the evolution of galaxies and their groups in different environments." @default.
- W2083867650 created "2016-06-24" @default.
- W2083867650 creator A5005644291 @default.
- W2083867650 creator A5028821249 @default.
- W2083867650 creator A5056250868 @default.
- W2083867650 creator A5082224999 @default.
- W2083867650 creator A5085690407 @default.
- W2083867650 date "2009-01-14" @default.
- W2083867650 modified "2023-09-26" @default.
- W2083867650 title "Anatomy of luminosity functions: the 2dFGRS example" @default.
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