Search results for "komētu orbītas"

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Эволюция орбит комет

1963

Latviešu astronoms Kārlis Šteins (1911 – 1983) pētīja komētu orbītu difūziju – mazu izmaiņu uzkrāšanos orbītas parametra – lielās pusass apgrieztajās vērtībās. Kopā ar līdzstrādniekiem viņš modelēja daudzu komētu orbītas un noteica, kā Jupitera gravitācijas spēks ietekmē lielo pusasu apgrieztos lielumus un vēl vienu orbītas parametru – perihēlija attālumu. Viņi ieguva un atrisināja diferenciālvienādojumu, kas apraksta komētu difūziju. Pētījumos K. Šteins atklāja jaunas orbītu parametru statistiskās sakarības, kas literatūrā pazīstamas kā komētu difūzijas likumi un reizēm tiek sauktas viņa vārdā. Šie pētījumi apkopoti viņa fizikas un matemātikas zinātņu doktora disertācijā „Komētu orbītu evo…

:NATURAL SCIENCES::Physics::Astronomy and astrophysics::Planetary system [Research Subject Categories]komētaskomētu difūzijas teorijakomētu orbītas

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PEPhysical Sciences and Engineering
- PE2Fundamental Constituents of Matter
  - PE2_1Theory of fundamental interactions
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  - PE2_9 Electromagnetism
  - PE2_10Atomic, molecular physics
  - PE2_11Ultra-cold atoms and molecules
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  - PE11_11Porous materials engineering, e.g. covalent-organic, metal-organic, porous aromatic frameworks
  - PE11_12Semi-conducting and magnetic materials engineering
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  - PE11_14Computational methods for materials engineering
LSLife Sciences
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  - LS1_14Innovative methods and modelling in molecular, structural and synthetic biology
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- LS2Integrative Biology: from Genes and Genomes to Systems
  - LS2_1Genetics
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  - LS2_2Gene editing
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  - LS2_16Innovative methods and modelling in integrative biology
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- LS4Physiology in Health, Disease and Ageing
  - LS4_1Organ and tissue physiology and pathophysiology
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SHSocial Sciences and Humanities
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