Fundamental Reasons for the Similarity and Differences of the Mass Spectra of Various Astronomical Objects

Тутуков, А. В.; Шустов, Б. М.

doi:10.1007/s10511-020-09658-9

Cited by 7 publications

(1 citation statement)

References 43 publications

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“…e power law mass frequency distribution is also used in the problem of determining meteoroid mass distribution indices for sporadic meteors and meteor showers using radar meteor observations [48][49][50][51]. It is shown [52] that the initial mass spectra of various astronomical objects (cosmic dust, asteroids, planets, stars, star clusters, galaxies, and galactic clusters) in ensembles formed by fragmentation (a fast process) can be represented in a first approximation in a statistically significant range by a basis distribution function following a power law. A power law is used in investigating the size-frequency distribution of impact craters on terrestrial planets and asteroids and of projectiles that formed those craters [53][54][55].…”

Section: Introductionmentioning

confidence: 99%

On the Mass Distribution of Fragments of an Asteroid Disrupted in the Earth’s Atmosphere

Брыкина

Егорова

2021

Advances in Astronomy

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To model the interaction with the atmosphere of fragments of a disrupted asteroid, which move independently of each other, it is necessary to know their mass distribution. In this regard, an analogy is drawn with fragmentation in high-speed impact experiments performed to simulate the disruption of asteroids at their collisions in outer space. Based on the results of impact experiments and assuming a power law for the mass distribution in a differential form, we obtained the cumulative number of fragments as a function of the fragment mass m normalized to the total mass of fragments, the mass fraction of the largest fragment(s), the number of the largest fragments, and the power index. The formula for the cumulative number of fragments of a disrupted body is used to describe the results of impact experiments for different fragmentation types. The proposed fragment mass distribution is also tested by comparison with the mass distributions of recovered meteorites in the cases of Mbale, Bassikounou, Almahata Sitta, Košice, and Chelyabinsk meteorite falls.

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Section: Introductionmentioning

confidence: 99%

On the Mass Distribution of Fragments of an Asteroid Disrupted in the Earth’s Atmosphere

Брыкина

Егорова

2021

Advances in Astronomy

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The evolution of relative frequencies of ONe and CO SNe Ia

Bogomazov

Тутуков

2023

Monthly Notices of the Royal Astronomical Society

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In this population synthesis work we study a variety of possible origin channels of supernovae type Ia (SNe Ia) Among them mergers of carbon-oxygen (CO) and oxygen-neon (ONe) white dwarfs (WDs) under the influence of gravitational waves are considered as the primary channel of SNe Ia formation. We estimated frequencies of mergers of WDs with different chemical compositions and distributions of masses of merging WDs. We computed the dependence of the ratio of merger frequencies of ONe and CO WDs as primaries in corresponding binaries on time. The scatter of masses of considered sources (up to the factor 1.5–2) of SNe Ia is important and should be carefully studied with other sophisticated methods from theoretical point of view. Our ‘game of parameters’ potentially explains the increased dimming of SNe Ia in the redshift range z ≈ 0.5–1 by the changes in the ratio of ONe and CO WDs, i.e., to describe the observed accelerated expansion of the Universe in terms of the evolution of properties of SNe Ia instead of cosmological explanations. This example shows the extreme importance of theoretical studies of problems concerning SNe Ia, because evolutionary scenario and parameter games in nature potentially lead to confusions in their empirical standardization and, therefore, they can influence on cosmological conclusions.

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On the Power Law for Describing the Mass Distribution of Fragments of a Disrupted Cosmic Body

Брыкина

Егорова

2022

Sol Syst Res

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Fundamental Reasons for the Similarity and Differences of the Mass Spectra of Various Astronomical Objects

Cited by 7 publications

References 43 publications

On the Mass Distribution of Fragments of an Asteroid Disrupted in the Earth’s Atmosphere

On the Mass Distribution of Fragments of an Asteroid Disrupted in the Earth’s Atmosphere

The evolution of relative frequencies of ONe and CO SNe Ia

On the Power Law for Describing the Mass Distribution of Fragments of a Disrupted Cosmic Body

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