Gauge invariant cosmological perturbations with cold dark matter

Details Gauge invariant cosmological perturbations with cold dark matter Gauge invariant cosmological perturbations with cold dark matter

Feb 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989stin...9011679s&link_type=abstract

Unknown

Astronomy and Astrophysics

Astronomy

Cosmology, Dark Matter, Gauge Invariance, Perturbation, Anisotropy, Astronomical Models, Baryons, Microwaves

Scientific paper

In the gauge-invariant formalism, the evolution of adiabatic and baryonic isocurvature density perturbations in a universe dominated by cold dark matter (CDM) is thoroughly investigated. Anisotropies are evaluated in the cosmic microwave background (CMB) and large scale peculiar velocities. From the recent observations of CMB fluctuations, new and stringent constraint is obtained for adiabatic CDM models as Omega0 h-1 greater than 0.3. As for baryonic isocurvature perturbations, though the constraint is required as Omega0 h-1 greater than or approx 0.6, these baryonic isocurvature models are more viable than axion isocurvature models. However it is difficult for both adiabatic and baryonic isocurvature CDM models to explain to observed large scale velocity field at greater than or approx 50h-1 Mpc while being consistent with the observations of CMB anisotropies.

Affiliated with

Also associated with

No associations

Rating

Gauge invariant cosmological perturbations with cold dark matter does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Gauge invariant cosmological perturbations with cold dark matter, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Gauge invariant cosmological perturbations with cold dark matter will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1886138