Published

2001-07-01

Virial theorem and gravitational equilibrium with a cosmological constant

Keywords:

Constante cosmológica, densidad, galaxias (es)

Downloads

Authors

  • Marek Nowakowski Universidad de los Andes
  • Juan Carlos Sanabria Universidad de los Andes
  • Alejandro García Universidad de los Andes

Starting from the Newtonian limit of Einstein's equations in the presence of a positive cosmological constant, we obtain a new version of the virial theorem and a condition for gravitational equilibrium. Such a condition takes the form ρ > λρvac, where ρ is the mean density of an astrophysical system (e.g. galaxy, galaxy cluster or supercluster), λ is a quantity which depends only on the shape of the system, and ρvac is the vacuum density. We conclude that gravitational stability might be infiuenced by the presence of Λ depending strongly on the shape of the system.

How to Cite

APA

Nowakowski, M., Sanabria, J. C. and García, A. (2001). Virial theorem and gravitational equilibrium with a cosmological constant. MOMENTO, (23), 21–34. https://revistas.unal.edu.co/index.php/momento/article/view/35358

ACM

[1]
Nowakowski, M., Sanabria, J.C. and García, A. 2001. Virial theorem and gravitational equilibrium with a cosmological constant. MOMENTO. 23 (Jul. 2001), 21–34.

ACS

(1)
Nowakowski, M.; Sanabria, J. C.; García, A. Virial theorem and gravitational equilibrium with a cosmological constant. Momento 2001, 21-34.

ABNT

NOWAKOWSKI, M.; SANABRIA, J. C.; GARCÍA, A. Virial theorem and gravitational equilibrium with a cosmological constant. MOMENTO, [S. l.], n. 23, p. 21–34, 2001. Disponível em: https://revistas.unal.edu.co/index.php/momento/article/view/35358. Acesso em: 19 apr. 2024.

Chicago

Nowakowski, Marek, Juan Carlos Sanabria, and Alejandro García. 2001. “Virial theorem and gravitational equilibrium with a cosmological constant”. MOMENTO, no. 23 (July):21-34. https://revistas.unal.edu.co/index.php/momento/article/view/35358.

Harvard

Nowakowski, M., Sanabria, J. C. and García, A. (2001) “Virial theorem and gravitational equilibrium with a cosmological constant”, MOMENTO, (23), pp. 21–34. Available at: https://revistas.unal.edu.co/index.php/momento/article/view/35358 (Accessed: 19 April 2024).

IEEE

[1]
M. Nowakowski, J. C. Sanabria, and A. García, “Virial theorem and gravitational equilibrium with a cosmological constant”, Momento, no. 23, pp. 21–34, Jul. 2001.

MLA

Nowakowski, M., J. C. Sanabria, and A. García. “Virial theorem and gravitational equilibrium with a cosmological constant”. MOMENTO, no. 23, July 2001, pp. 21-34, https://revistas.unal.edu.co/index.php/momento/article/view/35358.

Turabian

Nowakowski, Marek, Juan Carlos Sanabria, and Alejandro García. “Virial theorem and gravitational equilibrium with a cosmological constant”. MOMENTO, no. 23 (July 1, 2001): 21–34. Accessed April 19, 2024. https://revistas.unal.edu.co/index.php/momento/article/view/35358.

Vancouver

1.
Nowakowski M, Sanabria JC, García A. Virial theorem and gravitational equilibrium with a cosmological constant. Momento [Internet]. 2001 Jul. 1 [cited 2024 Apr. 19];(23):21-34. Available from: https://revistas.unal.edu.co/index.php/momento/article/view/35358

Download Citation

Article abstract page views

184

Downloads

Download data is not yet available.

License

Those authors who have publications with this journal, accept the following terms:

a. The authors will retain their copyright and will guarantee the publication of the first publication of their work, which will be subject to the Attribution-SinDerivar 4.0 International Creative Commons Attribution License that permits redistribution, commercial or non-commercial, As long as the Work circulates intact and unchanged, where it indicates its author and its first publication in this magazine.

b. Authors are encouraged to disseminate their work through the Internet (eg in institutional telematic files or on their website) before and during the sending process, which can produce interesting exchanges and increase appointments of the published work.