Peculiar acceleration

被引：21

作者：

Amendola, Luca ^{[1
]}

Balbi, Amedeo ^{[2
,3
]}

Quercellini, Claudia ^{[2
]}

机构：

[1] Osserv Astron Roma, INAF, I-00040 Rome, Italy

[2] Univ Roma Tor Vergata, Dipartimento Fis, I-00133 Rome, Italy

[3] Univ Roma Tor Vergata, Ist Nazl Fis Nucl, Sez Roma, I-00133 Rome, Italy

来源：

PHYSICS LETTERS B | 2008年 / 660卷 / 03期

关键词：

D O I：

10.1016/j.physletb.2007.11.094

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

It has been proposed recently to observe the change in cosmological redshift of distant galaxies or quasars with the next generation of large telescope and ultra-stable spectrographs (the so-called Sandage-Loeb test). Here we investigate the possibility of observing the change in peculiar velocity in nearby clusters and galaxies. This "peculiar acceleration" could help reconstructing the gravitational potential without assuming virialization. We show that the expected effect is of the same order of magnitude of the cosmological velocity shift. Finally, we discuss how to convert the theoretical predictions into quantities directly related to observations. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：81 / 86

页数：6

共 19 条

[1]

BALBI A, ARXIV07042350

[2] Profiles of dark haloes: evolution, scatter and environment [J].