The nature of small-scale vibration modes in disk-shaped galaxies

Ганиев, Ж.М.

O‘zbekiston fizika jurnali · 2021-yil

Annotatsiya

In this paper, the nature and behavior of small-scale perturbation modes in disc-shaped galaxies were considered. The gravitational instabilities of horizontal small-scale perturbation modes, such as (m;N)=(12;20) (14;20), (16;20) and (18;20) are calculated against the background of a nonlinear nonequilibrium pulsating anisotropic model of a self-gravitating disk. For each of these perturbation modes, critical diagrams are constructed between the virial parameter and the degree of rotation, and instability increments are calculated and compared for different values of the rotation parameter. The results of calculations and comparisons of instability regions show that with increase in the degree of small-scale, except the disturbance modes (m;N)=(14;20), the instability region narrows, as the azimuth wave number m increases. In critical diagrams, except for the case (m;N) = (18;20), a small area of stability is observed. In the interval Ω =∈ ÷ [0.2 1.0] of rotation parameter, there are short lines of the perturbation mode (12;20), (14;20) and (16;20) which are intersected with each other at some values of the increments of instabilities. The perturbation mode (14;20) has the largest increment values starting from the value of rotation parameter Ω = 0.6 .

Maqola ma’lumotlari
MualliflarГаниев, Ж.М.
JurnalO‘zbekiston fizika jurnali
NashriyotЎзбекистон Республикаси Фанлар академияси
ISSN1025-8817, 2181-077X
Nashr sanasi2021-11-04
Jild23
Son2
Betlar1-10
TilIngliz
Ilmiy sohaFizika-matematika
DOI10.52304/.v23i2.233
Indeksga qo‘shilgan2026-08-26

DOI: 10.52304/.v23i2.233 · Maqolaning asl sahifasi

Kalit so‘zlar

нелинейно-нестационарные модели, самогравитирующий диск, гравитационная неустойчивость, мелкомасштабные моды возмущений., nonlinear non-stationary models, self-gravitating disks, gravitational instability, small-scale perturbation modes.

Ilmiy soha

Fizika-matematika

Iqtibos keltirish

APAГаниев, Ж.М. (2021). The nature of small-scale vibration modes in disk-shaped galaxies. O‘zbekiston fizika jurnali, 23(2), 1-10. https://doi.org/10.52304/.v23i2.233
GOST (OAK)Ганиев, Ж.М. The nature of small-scale vibration modes in disk-shaped galaxies // O‘zbekiston fizika jurnali. – 2021. – T. 23, № 2. – P. 1-10. – DOI: 10.52304/.v23i2.233.
MLAГаниев, Ж.М. “The nature of small-scale vibration modes in disk-shaped galaxies.” O‘zbekiston fizika jurnali, 23(2), 1-10, 2021. https://doi.org/10.52304/.v23i2.233
ChicagoГаниев, Ж.М. “The nature of small-scale vibration modes in disk-shaped galaxies.” O‘zbekiston fizika jurnali, 23(2), 1-10 (2021). https://doi.org/10.52304/.v23i2.233
HarvardГаниев, Ж.М (2021) ‘The nature of small-scale vibration modes in disk-shaped galaxies’, O‘zbekiston fizika jurnali, 23(2), 1-10. https://doi.org/10.52304/.v23i2.233
BibTeX
@article{article2021,
  title = {The nature of small-scale vibration modes in disk-shaped galaxies},
  author = {Ганиев, Ж.М.},
  journal = {O‘zbekiston fizika jurnali},
  year = {2021},
  volume = {23},
  number = {2},
  pages = {1-10},
  doi = {10.52304/.v23i2.233},
  url = {https://doi.org/10.52304/.v23i2.233}
}

Boshqa maqola uchun iqtibos tayyorlash

O‘zbekiston fizika jurnali jurnalidan boshqa maqolalar

O‘zbekiston fizika jurnali — barcha maqolalar · 2021-yil arxivi

Ганиев, Ж.М. — boshqa maqolalari

Fizika-matematika sohasidagi boshqa maqolalar

Fizika-matematika sohasidagi OAK jurnallari