The connection between theinteraction of galaxies and theiractivity

Конторович, В. М.

doi:10.1080/10556799408245878

“…The computation of the other MF parameters requires invoking a considerably greater amount of astronomical data. 8 The most important requirement for the obtained solution is that the time scale of explosive evolution should be shorter than the Hubble time. This criterion can be satisfied only by imposing certain constraints on the masses, radii, and velocities of galaxies with the allowance for the dominating contribution of dark matter [6,15].…”

Section: Discussionmentioning

confidence: 99%

“…1 We show that the observed evolution of the LF slope (Section 2), understood as the slope of the mass function (MF) of galaxies, can be described as a result of explosive evolution driven by galaxy mergers. Currently, mergers are believed to be the factor responsible for the evolution of types and masses of galaxies [7] (see also the discussion and references in the reviews [8,9,10]). Although the actual situation is more complex (see the recent reviews by Ellis and Silk [11] and Silk and Mamon [12]), we show that the observed parameters of the MF can be explained satisfactorily in terms of our hypothesis.…”

Section: Introductionmentioning

confidence: 99%

Star formation in nearby isolated galaxies

Караченцев

¹

,

Караченцева

²

,

Мelnyk

³

et al. 2013

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We derived solutions for the Smoluchowski kinetic equation for the mass function of galaxies, which describes mergers in differential approximation, where mergers with low-mass galaxies are the dominant factor. The evolution of the initial distribution is analyzed as well as the influence of the source represented by galaxies (halos) that separate from the global cosmological expansion. It is shown that the evolution of the slope of the power-law part of the luminosity function at a constant mass-to-luminosity ratio observed in the Ultra Deep Hubble Field can be described as a result of explosive evolution driven by galaxy mergers. In this case the exponent depends exclusively on the uniformity degree of merger probability as a function of mass. pacs: /, 95.30.Sf, 98.35.Ce, 98.62.Ck, 95.35.

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“…1 We show that the observed evolution of the LF slope (Section 2), understood as the slope of the mass function (MF) of galaxies, can be described as a result of explosive evolution driven by galaxy mergers. Currently, mergers are believed to be the factor responsible for the evolution of types and masses of galaxies [7] (see also the discussion and references in the reviews [8,9,10]). Although the actual situation is more complex (see the recent reviews by Ellis and Silk [11] and Silk and Mamon [12]), we show that the observed parameters of the MF can be explained satisfactorily in terms of our hypothesis.…”

Section: Introductionmentioning

confidence: 99%

Merger driven explosive evolution of distant galaxies (minor mergers)

Kats

¹

,

Конторович

²

2013

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We derived solutions for the Smoluchowski kinetic equation for the mass function of galaxies, which describes mergers in differential approximation, where mergers with low-mass galaxies are the dominant factor. The evolution of the initial distribution is analyzed as well as the influence of the source represented by galaxies (halos) that separate from the global cosmological expansion. It is shown that the evolution of the slope of the power-law part of the luminosity function at a constant mass-to-luminosity ratio observed in the Ultra Deep Hubble Field can be described as a result of explosive evolution driven by galaxy mergers. In this case the exponent depends exclusively on the uniformity degree of merger probability as a function of mass. pacs: /, 95.30.Sf, 98.35.Ce, 98.62.Ck, 95.35

show abstract