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Axisymmetric instabilities in gravitating discs with mass spectrum. / Ortega, V. G.; Volkov, E.; Monte-Lima, I.

In: Astronomy and Astrophysics, Vol. 366, No. 1, 2001, p. 276-280.

Research output: Contribution to journal › Article › peer-review

Harvard

Ortega, VG, Volkov, E & Monte-Lima, I 2001, 'Axisymmetric instabilities in gravitating discs with mass spectrum', Astronomy and Astrophysics, vol. 366, no. 1, pp. 276-280. https://doi.org/10.1051/0004-6361:20000347

APA

Ortega, V. G., Volkov, E., & Monte-Lima, I. (2001). Axisymmetric instabilities in gravitating discs with mass spectrum. Astronomy and Astrophysics, 366(1), 276-280. https://doi.org/10.1051/0004-6361:20000347

Vancouver

Ortega VG, Volkov E, Monte-Lima I. Axisymmetric instabilities in gravitating discs with mass spectrum. Astronomy and Astrophysics. 2001;366(1):276-280. https://doi.org/10.1051/0004-6361:20000347

Author

Ortega, V. G. ; Volkov, E. ; Monte-Lima, I. / Axisymmetric instabilities in gravitating discs with mass spectrum. In: Astronomy and Astrophysics. 2001 ; Vol. 366, No. 1. pp. 276-280.

BibTeX

@article{dcc62191708c4533be88191cbc82b36a,
title = "Axisymmetric instabilities in gravitating discs with mass spectrum",
abstract = "Starting from an axisymmetric, differentially rotating thin disc at equilibrium, in which the velocity dispersion is not large and in which the particles are characterized by a mass distribution and by a relationship between mass and velocity dispersion, we consider the stability of such a configuration against small axisymmetric disturbances. The analysis is performed kinetically and the behaviour of the marginal stability curves for different values of the system's parameters is investigated. Specifically, we consider the implications of changes in the parameters characterizing the mass spectrum range and the law relating the mass and velocity dispersion. Our results show that the characteristics of the system can significantly affect the critical stability parameters. We point out that such effects may strongly influence the evolution of the interstellar medium in disc galaxies.",
keywords = "ISM: clouds, ISM: kinematics and dynamics, ISM: molecules",
author = "Ortega, {V. G.} and E. Volkov and I. Monte-Lima",
note = "Copyright: Copyright 2018 Elsevier B.V., All rights reserved.",
year = "2001",
doi = "10.1051/0004-6361:20000347",
language = "English",
volume = "366",
pages = "276--280",
journal = "ASTRONOMY & ASTROPHYSICS",
issn = "0004-6361",
publisher = "EDP Sciences",
number = "1",

}

RIS

TY - JOUR

T1 - Axisymmetric instabilities in gravitating discs with mass spectrum

AU - Ortega, V. G.

AU - Volkov, E.

AU - Monte-Lima, I.

N1 - Copyright: Copyright 2018 Elsevier B.V., All rights reserved.

PY - 2001

Y1 - 2001

N2 - Starting from an axisymmetric, differentially rotating thin disc at equilibrium, in which the velocity dispersion is not large and in which the particles are characterized by a mass distribution and by a relationship between mass and velocity dispersion, we consider the stability of such a configuration against small axisymmetric disturbances. The analysis is performed kinetically and the behaviour of the marginal stability curves for different values of the system's parameters is investigated. Specifically, we consider the implications of changes in the parameters characterizing the mass spectrum range and the law relating the mass and velocity dispersion. Our results show that the characteristics of the system can significantly affect the critical stability parameters. We point out that such effects may strongly influence the evolution of the interstellar medium in disc galaxies.

AB - Starting from an axisymmetric, differentially rotating thin disc at equilibrium, in which the velocity dispersion is not large and in which the particles are characterized by a mass distribution and by a relationship between mass and velocity dispersion, we consider the stability of such a configuration against small axisymmetric disturbances. The analysis is performed kinetically and the behaviour of the marginal stability curves for different values of the system's parameters is investigated. Specifically, we consider the implications of changes in the parameters characterizing the mass spectrum range and the law relating the mass and velocity dispersion. Our results show that the characteristics of the system can significantly affect the critical stability parameters. We point out that such effects may strongly influence the evolution of the interstellar medium in disc galaxies.

KW - ISM: clouds

KW - ISM: kinematics and dynamics

KW - ISM: molecules

UR - http://www.scopus.com/inward/record.url?scp=0035201469&partnerID=8YFLogxK

U2 - 10.1051/0004-6361:20000347

DO - 10.1051/0004-6361:20000347

M3 - Article

AN - SCOPUS:0035201469

VL - 366

SP - 276

EP - 280

JO - ASTRONOMY & ASTROPHYSICS

JF - ASTRONOMY & ASTROPHYSICS

SN - 0004-6361

IS - 1

ER -

ID: 77691590