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List of interstellar and circumstellar molecules; Molecular astrophysics – Field of study on atomic and molecular particles in space; Nucleocosmochronology – Technique to determine timescales for astrophysical objects and events; Recombination – Epoch c. 370,000 years after the Big Bang
Atomic astrophysics is concerned with performing atomic physics calculations that will be useful to astronomers and using atomic data to interpret astronomical observations. Atomic physics plays a key role in astrophysics as astronomers' only information about a particular object comes through the light that it emits, and this light arises ...
Free music is music that, like free software, can freely be copied, distributed and modified for any purpose. Subcategories. This category has the following 2 ...
The following tables list molecules that have been detected in the interstellar medium or circumstellar matter, grouped by the number of component atoms. Neutral molecules and their molecular ions are listed in separate columns; if there is no entry in the molecule column, only the ionized form has been detected. Designations (names of ...
The X-factor in astrophysics, often labeled X CO, is an empirically determined proportionality constant which converts carbon monoxide (CO) emission line brightness to molecular hydrogen (H 2) mass. The term X-factor was coined in a 1983 paper titled "Gamma-rays from atomic and molecular gas in the first galactic quadrant" and published in The ...
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These are lists of songs.In music, a song is a musical composition for a voice or voices, performed by singing or alongside musical instruments. A choral or vocal song may be accompanied by musical instruments, or it may be unaccompanied, as in the case of a cappella songs.
Astrophysics is the branch of astronomy that deals with the physics of the universe, including the physical properties (luminosity, density, temperature, chemical composition) of astronomical objects such as stars, galaxies, and the interstellar medium, as well as their interactions.