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Spectral energy distribution

Index Spectral energy distribution

A spectral energy distribution (SED) is a plot of energy versus frequency or wavelength of light (not to be confused with a 'spectrum' of flux density vs frequency or wavelength). [1]

29 relations: AB7, Apparent magnitude, Black-body radiation, Epsilon Aurigae, Eta Aquilae, Eta Carinae, Extragalactic background light, FEL lamp, HD 179821, HR 5171, Infrared excess, K correction, KIC 8462852, KY Cygni, List of astronomy acronyms, Nova Persei 2018, Pierson–Moskowitz spectrum, Radiation pressure, Sed (disambiguation), SMC AB8, Spectrum, Symbiotic binary, TV Geminorum, U Monocerotis, VY Canis Majoris, Westerlund 1-26, Witch of Agnesi, WOH G64, Young stellar object.

AB7

AB7, also known as SMC WR7, is a binary star in the Small Magellanic Cloud.

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Apparent magnitude

The apparent magnitude of a celestial object is a number that is a measure of its brightness as seen by an observer on Earth.

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Black-body radiation

Black-body radiation is the thermal electromagnetic radiation within or surrounding a body in thermodynamic equilibrium with its environment, or emitted by a black body (an opaque and non-reflective body).

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Epsilon Aurigae

Epsilon Aurigae (ε Aurigae, abbreviated Eps Aur, ε Aur) is a multiple star system in the northern constellation of Auriga.

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Eta Aquilae

Eta Aquilae (η Aql, η Aquilae) is the Bayer designation for a multiple star in the equatorial constellation of Aquila, the eagle.

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Eta Carinae

Eta Carinae (η Carinae, abbreviated to η Car), formerly known as Eta Argus, is a stellar system containing at least two stars with a combined luminosity greater than five million times that of the Sun, located around 7,500 light-years (2,300 parsecs) distant in the constellation Carina.

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Extragalactic background light

The diffuse extragalactic background light (EBL) is all the accumulated radiation in the universe due to star formation processes, plus a contribution from active galactic nuclei (AGNs).

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FEL lamp

The FEL lamp (less accurately called a light bulb) is an ANSI standard 1000 watt quartz halogen lamp with a G9.5 medium 2-pin base used in many stage and studio lights that costs around $12 and is available from a number of manufacturers including GE, Osram, Ushio, Eiko, and Philips.

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HD 179821

HD 179821 is a yellow supergiant star in the constellation of Aquila, surrounded by a detached dust shell.

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HR 5171

HR 5171, also known as V766 Centauri, is a triple star system in the constellation Centaurus, around 12,000 light years from Earth.

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Infrared excess

An infrared excess is a measurement of an astronomical source, typically a star, that in their spectral energy distribution has a greater measured infrared flux than expected by assuming the star is a blackbody radiator.

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K correction

K correction is a correction to an astronomical object's magnitude (or equivalently, its flux) that allows a measurement of a quantity of light from an object at a redshift z to be converted to an equivalent measurement in the rest frame of the object.

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KIC 8462852

KIC 8462852 (also Tabby's Star or Boyajian's Star) is an F-type main-sequence star located in the constellation Cygnus approximately from Earth.

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KY Cygni

KY Cygni is a red supergiant of spectral class M3.5Ia located in the constellation Cygnus.

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List of astronomy acronyms

This is a compilation of initialisms and acronyms commonly used in astronomy.

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Nova Persei 2018

Nova Persei 2018 is a bright nova in the constellation Perseus discovered on April 29, 2018.

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Pierson–Moskowitz spectrum

The Pierson–Moskowitz (PM) spectra is an empirical relationship that defines the distribution of energy with frequency within the ocean.

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Radiation pressure

Radiation pressure is the pressure exerted upon any surface due to the exchange of momentum between the object and the electromagnetic field.

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Sed (disambiguation)

sed is a Unix utility for processing text.

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SMC AB8

AB8, also known as SMC WR8, is a binary star in the Small Magellanic Cloud (SMC).

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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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Symbiotic binary

A symbiotic binary is a type of binary star system, often simply called a symbiotic star.

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TV Geminorum

TV Geminorum (TV Gem / HD 42475 / HR 2190) is a variable red supergiant in the constellation Gemini.

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U Monocerotis

U Monocerotis (U Mon) is a variable star and spectroscopic binary in the constellation Monoceros.

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VY Canis Majoris

VY Canis Majoris (VY CMa) is an extreme pulsating red hypergiant (or supergiant) star located in the constellation Canis Major.

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Westerlund 1-26

Westerlund 1-26 or Wd 1-26 is a red supergiant or hypergiant within the outskirts of the Westerlund 1 super star cluster.

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Witch of Agnesi

In mathematics, the Witch of Agnesi is a cubic plane curve defined from two diametrically opposite points of a circle.

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WOH G64

WOH G64 is a red hypergiant star in the Large Magellanic Cloud satellite galaxy in the southern constellation of Dorado.

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Young stellar object

Young stellar object (YSO) denotes a star in its early stage of evolution.

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Redirects here:

SED fitting, Spectral Energy Distribution.

References

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

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