Author:
Álvarez Enrique,Anero Jesús,Sánchez-Ruiz Irene
Abstract
AbstractIt is well-known that in unimodular gravity (UG) the cosmological constant is not sourced by a constant energy density, but rather appears as some sort of integration constant. In this work we try to flesh this out by studying in some detail a couple of examples, one from cosmology and the other from gravitational collapse.
Publisher
Springer Science and Business Media LLC
Reference14 articles.
1. E. Alvarez, J. Anero, Unimodular Cosmological models. arXiv:2109.08077 [gr-qc]
2. E. Alvarez, E. Velasco-Aja, A Primer on Unimodular Gravity. arXiv:2301.07641 [gr-qc]
3. G. D. Birkhoff, Relativity and modern physics. Cambridge, Massachusetts: Harvard University Press. LCCN 23008297 (1923)
4. H. Bondi, Spherically Symmetrical Models in General Relativity. Mon. Not. R. Astron. Soc. 107(5–6), 410–425 (1947). https://doi.org/10.1093/mnras/107.5-6.410
5. P. T. Chrusciel, J. Lopes Costa, M. Heusler, Stationary Black Holes: Uniqueness and Beyond. Living Rev. Rel. 15, 7 (2012). https://doi.org/10.12942/lrr-2012-7. arXiv:1205.6112 [gr-qc]