density of electrons
41Rydberg matter — is a metastable state of highly excited atoms (see Rydberg atom) which are condensed in a solid or liquid like very low density matter [L. Holmlid. Direct observation of circular Rydberg electrons in a Rydberg Matter surface layer by electronic… …
42Radio galaxy — Radio galaxies and their relatives, radio loud quasars and blazars, are types of active galaxy that are very luminous at radio wavelengths (up to 1038 W between 10 MHz and 100 GHz). The radio emission is due to the synchrotron process. The… …
43Neutrino decoupling — In Big Bang cosmology, neutrino decoupling refers to the epoch at which neutrinos ceased interacting with baryonic matter, and thereby ceased influencing the dynamics of the universe at early times.[1] Prior to decoupling, neutrinos were in… …
44Debye length — In plasma physics, the Debye length (also called Debye radius), named after the Dutch physicist and physical chemist Peter Debye, is the scale over which mobile charge carriers (e.g. electrons) screen out electric fields in plasmas and other… …
45Resistivity — Electrical resistivity (also known as specific electrical resistance) is a measure of how strongly a material opposes the flow of electric current. A low resistivity indicates a material that readily allows the movement of electrical charge. The… …
46Faraday effect — In physics, the Faraday effect or Faraday rotation is a magneto optical phenomenon, or an interaction between light and a magnetic field in a dielectric material. The rotation of the plane of polarization is proportional to the intensity of the… …
47Strömgren sphere — In theoretical astrophysics, a Strömgren sphere is the sphere of ionized hydrogen (H II) around a young star of the spectral classes O or B. Its counterpart in the real word are the H II regions, a type of an emission nebula, the most prominent… …
48Jellium — is the model of interacting electrons in which a uniform background of positive charge exists. In this model at zero temperature the system properties are dependent only on the charge density of electrons. This allows for the simplistic… …
49CCP4 (file format) — Infobox file format name = ccp4 extension = .ccp4 mime = owner = creatorcode = genre = electron density file container for = contained by = extended from = extended to = The CCP4 file format is file generated by the Collaborative Computational… …
50MRC (file format) — mrc Filename extension .mrc Type of format 3D electron density file or 2D image file The MRC file format is a file format for electron density has become industry standard in Cryo electron microscopy where the result of the technique is a three… …
