Contributions to the Local Gravitational Field from beyond the Local Supercluster
1987 ◽
Vol 117
◽
pp. 435-443
Keyword(s):
IRAS 60μ sources are used to map the local (≲200h−1 Mpc, Ho =100h km s−1 Mpc−1) gravitational field, and to determine its dipole component, on the assumption that the infrared radiation traces the matter. The dipole moment is found to point in the direction of the anisotropy of the microwave background radiation. Comparison of the two anisotropies, using linear perturbation theory, yields an estimate of the cosmological density parameter, Ω =0.85±0.16, with nonlinear effects increasing Ωo by ∼15%. The quadrupolar tidal field within the Local Supercluster, due presumably to the same density inhomogeneities, is detected in a kinematical study of the velocity field.
1997 ◽
Vol 06
(05)
◽
pp. 535-544
1993 ◽
Vol 132
◽
pp. 131-135
2007 ◽
Vol 79
(4)
◽
pp. 1349-1379
◽
1989 ◽
Vol 571
(1 Texas Symposi)
◽
pp. 205-213