释义 |
Definition of space density in English: space densitynoun Astronomy The frequency of occurrence of stars, particles, or other celestial objects, per specified volume of space. Example sentencesExamples - If these are massive early-type galaxies their space density exceeds the expectations based on hierarchical clustering models.
- Our study helps address the space density at low redshift, thus allowing us to get a more definitive measure of the evolution in number of these systems.
- Spherical harmonics were fit to the pitch and phase distributions in order to obtain fluxes from which phase space densities could be computed.
- Independent of one's redshift model, substantial changes in the luminosity function or space density of quasars and radio galaxies have occurred.
- For a Gaussian model, the effects of multi-particles Bose-Einstein correlations on the mean phase space density are studied.
Definition of space density in US English: space densitynoun Astronomy The frequency of occurrence of stars, particles, or other heavenly bodies, per specified volume of space. Example sentencesExamples - For a Gaussian model, the effects of multi-particles Bose-Einstein correlations on the mean phase space density are studied.
- Our study helps address the space density at low redshift, thus allowing us to get a more definitive measure of the evolution in number of these systems.
- Spherical harmonics were fit to the pitch and phase distributions in order to obtain fluxes from which phase space densities could be computed.
- Independent of one's redshift model, substantial changes in the luminosity function or space density of quasars and radio galaxies have occurred.
- If these are massive early-type galaxies their space density exceeds the expectations based on hierarchical clustering models.
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