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Article overview
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How to determine an effective potential for a variable cosmological term | A.A. Starobinsky
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27 Oct 1998 | Journal: | JETP Lett. 68 (1998) 757-763; Pisma Zh.Eksp.Teor.Fiz. 68 (1998) 721-726 | Subject: | astro-ph gr-qc | Abstract: | It is shown that if a variable cosmological term in the present Universe is described by a scalar field with minimal coupling to gravity and with some phenomenological self-interaction potential $V(varphi)$, then this potential can be unambiguously determined from the following observational data: either from the behaviour of density perturbations in dustlike matter component as a function of redshift (given the Hubble constant additionally), or from the luminosity distance as a function of redshift (given the present density of dustlike matter in terms of the critical one). | Source: | arXiv, astro-ph/9810431 | Services: | Forum | Review | PDF | Favorites |
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