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35 relations: Absorption (electromagnetic radiation), Ångström, Balmer series, Electromagnetic spectrum, Electron, Electronvolt, Frequency, Gamma-ray astronomy, Haro 11, Hertz, Hydrogen, Hydrogen atom, Ionization, Ionization energy, Kinetic energy, Lyman limit, Lyman series, Lyman-alpha blob, Lyman-alpha forest, Lyman-break galaxy, Momentum, Nanometre, Pea galaxy, Photoionization, Photon, Photon energy, Photosphere, Proton, Star, Theodore Lyman, Tololo 1247-232, Ultraviolet, Victor Schumann, Wavelength, X-ray astronomy.
Absorption (electromagnetic radiation)
In physics, absorption of electromagnetic radiation is the way in which the energy of a photon is taken up by matter, typically the electrons of an atom.
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Ångström
The ångström or angstrom is a unit of length equal to (one ten-billionth of a metre) or 0.1 nanometre.
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Balmer series
The Balmer series or Balmer lines in atomic physics, is the designation of one of a set of six named series describing the spectral line emissions of the hydrogen atom.
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Electromagnetic spectrum
The electromagnetic spectrum is the range of frequencies (the spectrum) of electromagnetic radiation and their respective wavelengths and photon energies.
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Electron
The electron is a subatomic particle, symbol or, whose electric charge is negative one elementary charge.
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Electronvolt
In physics, the electronvolt (symbol eV, also written electron-volt and electron volt) is a unit of energy equal to approximately joules (symbol J).
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Frequency
Frequency is the number of occurrences of a repeating event per unit of time.
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Gamma-ray astronomy
Gamma-ray astronomy is the astronomical observation of gamma rays,Astronomical literature generally hyphenates "gamma-ray" when used as an adjective, but uses "gamma ray" without a hyphen for the noun.
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Haro 11
Haro 11 (H11) is a small galaxy at a distance of (redshift z.
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Hertz
The hertz (symbol: Hz) is the derived unit of frequency in the International System of Units (SI) and is defined as one cycle per second.
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Hydrogen
Hydrogen is a chemical element with symbol H and atomic number 1.
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Hydrogen atom
A hydrogen atom is an atom of the chemical element hydrogen.
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Ionization
Ionization or ionisation, is the process by which an atom or a molecule acquires a negative or positive charge by gaining or losing electrons to form ions, often in conjunction with other chemical changes.
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Ionization energy
The ionization energy (Ei) is qualitatively defined as the amount of energy required to remove the most loosely bound electron, the valence electron, of an isolated gaseous atom to form a cation.
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Kinetic energy
In physics, the kinetic energy of an object is the energy that it possesses due to its motion.
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Lyman limit
The Lyman limit is the short-wavelength end of the hydrogen Lyman series, at.
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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.
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Lyman-alpha blob
In astronomy, a Lyman-alpha blob (LAB) is a huge concentration of a gas emitting the Lyman-alpha emission line.
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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.
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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.
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Momentum
In Newtonian mechanics, linear momentum, translational momentum, or simply momentum (pl. momenta) is the product of the mass and velocity of an object.
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Nanometre
The nanometre (International spelling as used by the International Bureau of Weights and Measures; SI symbol: nm) or nanometer (American spelling) is a unit of length in the metric system, equal to one billionth (short scale) of a metre (m).
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Pea galaxy
A Pea galaxy, also referred to as a Pea or Green Pea, might be a type of Luminous Blue Compact Galaxy which is undergoing very high rates of star formation.
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Photoionization
Photoionization is the physical process in which an ion is formed from the interaction of a photon with an atom or molecule.
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Photon
The photon is a type of elementary particle, the quantum of the electromagnetic field including electromagnetic radiation such as light, and the force carrier for the electromagnetic force (even when static via virtual particles).
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Photon energy
Photon energy is the energy carried by a single photon.
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Photosphere
The photosphere is a star's outer shell from which light is radiated.
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Proton
| magnetic_moment.
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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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Theodore Lyman
Theodore Lyman (November 23, 1874 – October 11, 1954) was a U.S. physicist and spectroscopist, born in Boston.
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Tololo 1247-232
Tololo 1247-232 (Tol 1247 or T1247)) is a small galaxy at a distance of (redshift z.
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Ultraviolet
Ultraviolet (UV) is electromagnetic radiation with a wavelength from 10 nm to 400 nm, shorter than that of visible light but longer than X-rays.
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Victor Schumann
Victor Schumann (December 21, 1841 – September 1, 1913) was a physicist and spectroscopist who in 1893 discovered the vacuum ultraviolet.
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Wavelength
In physics, the wavelength is the spatial period of a periodic wave—the distance over which the wave's shape repeats.
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X-ray astronomy
X-ray astronomy is an observational branch of astronomy which deals with the study of X-ray observation and detection from astronomical objects.
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References
[1] https://en.wikipedia.org/wiki/Lyman_continuum_photons
