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2dF Galaxy Redshift Survey

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In astronomy, the 2dF Galaxy Redshift Survey (Two-degree-Field Galaxy Redshift Survey), 2dF or 2dFGRS is a redshift survey conducted by the Anglo-Australian Observatory (AAO) with the 3.9m Anglo-Australian Telescope between 1997 and 11 April 2002. [1]

35 relations: Anglo-Australian Telescope, Astronomy, Australian Astronomical Observatory, Baryon, Baryon acoustic oscillations, Dark matter, Declination, Fox News, Friedmann equations, Galactic coordinate system, Galaxy, Hubble's law, Huge-LQG, John A. Peacock, Lambda-CDM model, Neutrino, Parsec, Photometry (astronomy), Physical cosmology, Quasar, Redshift, Redshift survey, Right ascension, Royal Astronomical Society, Shaun Cole, Shaw Prize, Sloan Digital Sky Survey, Sloan Great Wall, Spectrograph, Spectrum, Square degree, Star, Supercluster, Theory of relativity, Wilkinson Microwave Anisotropy Probe.

Anglo-Australian Telescope

The Anglo-Australian Telescope (AAT) is a 3.9-metre equatorially mounted telescope operated by the Australian Astronomical Observatory and situated at the Siding Spring Observatory, Australia at an altitude of a little over 1,100 m.

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Astronomy

Astronomy (from ἀστρονομία) is a natural science that studies celestial objects and phenomena.

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Australian Astronomical Observatory

The Australian Astronomical Observatory (AAO), formerly the Anglo-Australian Observatory, is an optical and near-infrared astronomy observatory with its headquarters in North Ryde in suburban Sydney, Australia.

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Baryon

A baryon is a composite subatomic particle made up of three quarks (a triquark, as distinct from mesons, which are composed of one quark and one antiquark).

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Baryon acoustic oscillations

In cosmology, baryon acoustic oscillations (BAO) are regular, periodic fluctuations in the density of the visible baryonic matter (normal matter) of the universe.

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Dark matter

Dark matter is a theorized form of matter that is thought to account for approximately 80% of the matter in the universe, and about a quarter of its total energy density.

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Declination

In astronomy, declination (abbreviated dec; symbol δ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle.

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Fox News

Fox News (officially known as the Fox News Channel, commonly abbreviated to FNC) is an American basic cable and satellite television news channel owned by the Fox Entertainment Group, a subsidiary of 21st Century Fox.

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Friedmann equations

The Friedmann equations are a set of equations in physical cosmology that govern the expansion of space in homogeneous and isotropic models of the universe within the context of general relativity.

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Galactic coordinate system

The galactic coordinate system is a celestial coordinate system in spherical coordinates, with the Sun as its center, the primary direction aligned with the approximate center of the Milky Way galaxy, and the fundamental plane parallel to an approximation of the galactic plane but offset to its north.

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Galaxy

A galaxy is a gravitationally bound system of stars, stellar remnants, interstellar gas, dust, and dark matter.

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Hubble's law

Hubble's law is the name for the observation in physical cosmology that.

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Huge-LQG

The Huge Large Quasar Group, (Huge-LQG, also called U1.27) is a possible structure or pseudo-structure of 73 quasars, referred to as a large quasar group, that measures about 4 billion light-years across.

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John A. Peacock

John Andrew Peacock, FRS, FRSE (born 27 March 1956) is a British cosmologist, astronomer, and academic.

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Lambda-CDM model

The ΛCDM (Lambda cold dark matter) or Lambda-CDM model is a parametrization of the Big Bang cosmological model in which the universe contains a cosmological constant, denoted by Lambda (Greek Λ), associated with dark energy, and cold dark matter (abbreviated CDM).

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Neutrino

A neutrino (denoted by the Greek letter ν) is a fermion (an elementary particle with half-integer spin) that interacts only via the weak subatomic force and gravity.

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Parsec

The parsec (symbol: pc) is a unit of length used to measure large distances to astronomical objects outside the Solar System.

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Photometry (astronomy)

Photometry is a technique of astronomy concerned with measuring the flux, or intensity of an astronomical object's electromagnetic radiation.

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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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Quasar

A quasar (also known as a QSO or quasi-stellar object) is an extremely luminous active galactic nucleus (AGN).

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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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Redshift survey

In astronomy, a redshift survey is a survey of a section of the sky to measure the redshift of astronomical objects: usually galaxies, but sometimes other objects such as galaxy clusters or quasars.

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Right ascension

Right ascension (abbreviated RA; symbol) is the angular distance measured only eastward along the celestial equator from the Sun at the March equinox to the (hour circle of the) point above the earth in question.

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Royal Astronomical Society

The Royal Astronomical Society (RAS) is a learned society that began as the Astronomical Society of London in 1820 to support astronomical research (mainly carried on at the time by 'gentleman astronomers' rather than professionals).

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Shaun Cole

Shaun Malcolm Cole (born 19 November 1963) is a British cosmologist and academic.

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Shaw Prize

The Shaw Prize is an annual award first presented by the Shaw Prize Foundation in 2004.

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Sloan Digital Sky Survey

The Sloan Digital Sky Survey or SDSS is a major multi-spectral imaging and spectroscopic redshift survey using a dedicated 2.5-m wide-angle optical telescope at Apache Point Observatory in New Mexico, United States.

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Sloan Great Wall

The Sloan Great Wall (SGW) is a cosmic structure formed by a giant wall of galaxies (a galaxy filament).

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Spectrograph

A spectrograph is an instrument that separates light into a frequency spectrum and records the signal using a camera.

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Spectrum

A spectrum (plural spectra or spectrums) is a condition that is not limited to a specific set of values but can vary, without steps, across a continuum.

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Square degree

A square degree (deg2) is a non-SI-compliant unit measure of solid angle.

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Star

A star is type of astronomical object consisting of a luminous spheroid of plasma held together by its own gravity.

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Supercluster

A supercluster is a large group of smaller galaxy clusters or galaxy groups; it is among the largest-known structures of the cosmos.

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Theory of relativity

The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity.

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Wilkinson Microwave Anisotropy Probe

The Wilkinson Microwave Anisotropy Probe (WMAP), originally known as the Microwave Anisotropy Probe (MAP), was a spacecraft operating from 2001 to 2010 which measured temperature differences across the sky in the cosmic microwave background (CMB) – the radiant heat remaining from the Big Bang.

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Redirects here:

2DF, 2dF, 2dF instrument, 2dFGRS, 2dfgrs, Two-degree-Field Galaxy Redshift Survey.

References

[1] https://en.wikipedia.org/wiki/2dF_Galaxy_Redshift_Survey

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