Logo
Unionpedia
Communication
Get it on Google Play
New! Download Unionpedia on your Android™ device!
Free
Faster access than browser!
 

Lyman-alpha emitter

+ Save concept

A Lyman-alpha emitter (LAE) is a type of distant galaxy that emits Lyman-alpha radiation. [1]

15 relations: Baryon acoustic oscillations, Cosmology, Damped Lyman-alpha system, Dark matter, Galaxy, Interstellar medium, Lyman limit, Lyman series, Lyman-alpha blob, Lyman-alpha forest, Lyman-break galaxy, Metallicity, Milky Way, Radiative transfer, Redshift.

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.

New!!: Lyman-alpha emitter and Baryon acoustic oscillations · See more »

Cosmology

Cosmology (from the Greek κόσμος, kosmos "world" and -λογία, -logia "study of") is the study of the origin, evolution, and eventual fate of the universe.

New!!: Lyman-alpha emitter and Cosmology · See more »

Damped Lyman-alpha system

Damped Lyman alpha systems or Damped Lyman alpha absorption systems are concentrations of neutral hydrogen gas, detected in the spectra of quasars.

New!!: Lyman-alpha emitter and Damped Lyman-alpha system · See more »

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.

New!!: Lyman-alpha emitter and Dark matter · See more »

Galaxy

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

New!!: Lyman-alpha emitter and Galaxy · See more »

Interstellar medium

In astronomy, the interstellar medium (ISM) is the matter and radiation that exists in the space between the star systems in a galaxy.

New!!: Lyman-alpha emitter and Interstellar medium · See more »

Lyman limit

The Lyman limit is the short-wavelength end of the hydrogen Lyman series, at.

New!!: Lyman-alpha emitter and Lyman limit · See more »

Lyman series

In physics and chemistry, the Lyman series is a hydrogen spectral series of transitions and resulting ultraviolet emission lines of the hydrogen atom as an electron goes from n ≥ 2 to n.

New!!: Lyman-alpha emitter and Lyman series · See more »

Lyman-alpha blob

In astronomy, a Lyman-alpha blob (LAB) is a huge concentration of a gas emitting the Lyman-alpha emission line.

New!!: Lyman-alpha emitter and Lyman-alpha blob · See more »

Lyman-alpha forest

In astronomical spectroscopy, the Lyman-alpha forest is a series of absorption lines in the spectra of distant galaxies and quasars arising from the Lyman-alpha electron transition of the neutral hydrogen atom.

New!!: Lyman-alpha emitter and Lyman-alpha forest · See more »

Lyman-break galaxy

Lyman-break galaxies are star-forming galaxies at high redshift that are selected using the differing appearance of the galaxy in several imaging filters due to the position of the Lyman limit.

New!!: Lyman-alpha emitter and Lyman-break galaxy · See more »

Metallicity

In astronomy, metallicity is used to describe the abundance of elements present in an object that are heavier than hydrogen or helium.

New!!: Lyman-alpha emitter and Metallicity · See more »

Milky Way

The Milky Way is the galaxy that contains our Solar System.

New!!: Lyman-alpha emitter and Milky Way · See more »

Radiative transfer

Radiative transfer is the physical phenomenon of energy transfer in the form of electromagnetic radiation.

New!!: Lyman-alpha emitter and Radiative transfer · See more »

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.

New!!: Lyman-alpha emitter and Redshift · See more »

Redirects here:

Ly-a emitter, Ly-α emitter, LyA emitter, Lya emitter, Lya galaxy, Lyman a emitter, Lyman alpha emitter, Lyman alpha radiation, Lyman α emitter, Lyman-alpha emitters, Lyα emitter, Lyα galaxy.

References

[1] https://en.wikipedia.org/wiki/Lyman-alpha_emitter

OutgoingIncoming
Hey! We are on Facebook now! »