cold dark matter


Also found in: Dictionary, Thesaurus, Medical, Legal, Acronyms, Wikipedia.

cold dark matter

(CDM) See dark matter.

cold dark matter

[¦kōld ′därk ‚mad·ər]
(astronomy)
A hypothetical type of dark matter consisting of particles that would have been in thermal equilibrium while traveling at nonrelativistic velocities in the early universe; possibilities include axions, photinos, gravitinos, heavy magnetic monopoles, and weakly interacting massive particles.
References in periodicals archive ?
Ever since the invention of Cold Dark Matter (1984) and the first CDM N-body cosmological simulations which were essential for determining the characteristics of dark matter, these simulations were at the core of calculating predictions on scale where structure has formed.
Cold dark matter (which is slower, left) clumps more easily than warm dark matter (faster, right), as apparent in these simulations of a 5-million-light-year-wide box
Still, a question worth pondering is whether corporate brands are more like the shining stars or the cold dark matter of the universe--out there somewhere, but emitting no discernable energy.
Using supercomputer simulations of the Universe, Prof Frenk and his collaborators have pioneered many of the developments that have resulted in the cold dark matter model becoming accepted as the standard concept for structure formation in the Universe.
They also confront theoretical cosmological predictions of hierarchical merging and galaxy formation in the scenario of the cold dark matter theory.
A paper accepted for publication in the Monthly Notices for the Royal Astronomical Society bolsters the standard cosmological model, or the Cold Dark Matter paradigm, by showing that the vast polar structure formed well after the Milky Way and is an unstable structure.
In this cold dark matter scenario, the particles should coalesce into numerous tiny and dense halos, providing a multitude of places where dwarf galaxies can form.
globular clusters) form at high redshift How do the cloud-scale physics of SF and feedback connect cold dark matter cosmology to the observable galaxy population It is now possible to answer these questions thanks to two crucial developments.
Together these three constituents are described in the Lambda Cold Dark Matter (LCDM) model for the cosmos, the starting point for the work of the Potsdam team.
Every galaxy is nestled within a halo of cold dark matter, composed of exotic particles that move much slower than the speed of light.
There were the standard Lambda Cold Dark Matter cosmology model and the other model which claimed that the universe was empty with the expansion neither accelerating or decelerating.
I propose to measure the growth of non-linear structure in the dark universe to answer two fundamental questions in cosmology: Is the Cold Dark Matter structure formation theory compatible with the galaxy distribution on group scales?