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List of cosmological horizons

Index List of cosmological horizons

A cosmological horizon is a measure of the distance from which one could possibly retrieve information. [1]

23 relations: Academic Press, Accelerating expansion of the universe, Big Bang, Comoving and proper distances, Cosmic microwave background, Cosmic neutrino background, Cosmological constant, Dark energy, De Sitter space, Event horizon, Expansion of the universe, General relativity, Gravitational wave background, Inflation (cosmology), Jacobus Kapteyn, Observable universe, Physical cosmology, Redshift, Scale factor (cosmology), Scientific American, Simultaneity, Spacetime, World Scientific.

Academic Press

Academic Press is an academic book publisher.

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Accelerating expansion of the universe

The accelerating expansion of the universe is the observation that the universe appears to be expanding at an increasing rate, so that the velocity at which a distant galaxy is receding from the observer is continuously increasing with time.

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Big Bang

The Big Bang theory is the prevailing cosmological model for the universe from the earliest known periods through its subsequent large-scale evolution.

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Comoving and proper distances

In standard cosmology, comoving distance and proper distance are two closely related distance measures used by cosmologists to define distances between objects.

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Cosmic microwave background

The cosmic microwave background (CMB, CMBR) is electromagnetic radiation as a remnant from an early stage of the universe in Big Bang cosmology.

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Cosmic neutrino background

The cosmic neutrino background (CNB, CνB) is the universe's background particle radiation composed of neutrinos.

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Cosmological constant

In cosmology, the cosmological constant (usually denoted by the Greek capital letter lambda: Λ) is the value of the energy density of the vacuum of space.

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Dark energy

In physical cosmology and astronomy, dark energy is an unknown form of energy which is hypothesized to permeate all of space, tending to accelerate the expansion of the universe.

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De Sitter space

In mathematics and physics, a de Sitter space is the analog in Minkowski space, or spacetime, of a sphere in ordinary Euclidean space.

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Event horizon

In general relativity, an event horizon is a region in spacetime beyond which events cannot affect an outside observer.

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Expansion of the universe

The expansion of the universe is the increase of the distance between two distant parts of the universe with time.

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General relativity

General relativity (GR, also known as the general theory of relativity or GTR) is the geometric theory of gravitation published by Albert Einstein in 1915 and the current description of gravitation in modern physics.

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Gravitational wave background

The gravitational wave background (also GWB and stochastic background) is a random gravitational wave signal produced by a large number of weak, independent, and unresolved sources.

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Inflation (cosmology)

In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the early universe.

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Jacobus Kapteyn

Prof Jacobus Cornelius Kapteyn FRS FRSE LLD (19 January 1851 – 18 June 1922) was a Dutch astronomer.

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Observable universe

The observable universe is a spherical region of the Universe comprising all matter that can be observed from Earth at the present time, because electromagnetic radiation from these objects has had time to reach Earth since the beginning of the cosmological expansion.

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Physical cosmology

Physical cosmology is the study of the largest-scale structures and dynamics of the Universe and is concerned with fundamental questions about its origin, structure, evolution, and ultimate fate.

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Redshift

In physics, redshift happens when light or other electromagnetic radiation from an object is increased in wavelength, or shifted to the red end of the spectrum.

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Scale factor (cosmology)

The relative expansion of the universe is parametrized by a dimensionless scale factor a. Also known as the cosmic scale factor or sometimes the Robertson–Walker scale factor, this is a key parameter of the Friedmann equations.

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Scientific American

Scientific American (informally abbreviated SciAm) is an American popular science magazine.

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Simultaneity

Simultaneity is the relation between two events assumed to be happening at the same time in a frame of reference.

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Spacetime

In physics, spacetime is any mathematical model that fuses the three dimensions of space and the one dimension of time into a single four-dimensional continuum.

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World Scientific

World Scientific Publishing is an academic publisher of scientific, technical, and medical books and journals headquartered in Singapore.

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Redirects here:

Cosmological horizon, Cosmological horizons.

References

[1] https://en.wikipedia.org/wiki/List_of_cosmological_horizons

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