dc.contributor.author |
Zakharov A. |
|
dc.date.accessioned |
2018-09-17T21:15:51Z |
|
dc.date.available |
2018-09-17T21:15:51Z |
|
dc.date.issued |
1997 |
|
dc.identifier.issn |
1064-8887 |
|
dc.identifier.uri |
https://dspace.kpfu.ru/xmlui/handle/net/134756 |
|
dc.description.abstract |
Gravitational perturbations in the expanding universe are analyzed within the framework of Newtonian cosmology. In contrast to classical work, the perturbations are found not in a Fourier but in a coordinate representation. This makes it possible to obtain general expressions for finding the distributions of perturbations in the density and velocity of matter as a function of the coordinates and time from the known distribution at the initial time. In the simplest cases of plane-symmetric and spherically symmetric distributions, analytical equations are obtained for density perturbations as a function of the coordinates and time. The final conclusion is that it is possible for gravitational perturbations to grow even when the characteristic size of a perturbation is less than the Jeans wavelength. © 1997 Plenum Publishing Corporation. |
|
dc.relation.ispartofseries |
Russian Physics Journal |
|
dc.title |
Gravitational perturbations in the expanding universe in a coordinate representation |
|
dc.type |
Article |
|
dc.relation.ispartofseries-issue |
3 |
|
dc.relation.ispartofseries-volume |
40 |
|
dc.collection |
Публикации сотрудников КФУ |
|
dc.relation.startpage |
256 |
|
dc.source.id |
SCOPUS10648887-1997-40-3-SID53249156528 |
|