Baryon Oscillation Spectroscopic Survey
Encyclopedia
The Baryon Oscillation Spectroscopic Survey (BOSS) is an astronomical survey designed to measure the expansion rate of the Universe
.
It will focus on luminous red galaxies (LRGs) and quasar
s, mapping the spatial distribution.
This survey is one of four components of SDSS-III.
Universe
The Universe is commonly defined as the totality of everything that exists, including all matter and energy, the planets, stars, galaxies, and the contents of intergalactic space. Definitions and usage vary and similar terms include the cosmos, the world and nature...
.
It will focus on luminous red galaxies (LRGs) and quasar
Quasar
A quasi-stellar radio source is a very energetic and distant active galactic nucleus. Quasars are extremely luminous and were first identified as being high redshift sources of electromagnetic energy, including radio waves and visible light, that were point-like, similar to stars, rather than...
s, mapping the spatial distribution.
This survey is one of four components of SDSS-III.
See also
The other components of SDSS-III are:- Apache Point Observatory Galactic Evolution ExperimentApache Point Observatory Galactic Evolution ExperimentThe Apache Point Observatory Galactic Evolution Experiment is an astronomical survey established to study 100,000 red giant stars encompassing the entire galactic bulge, bar, disk, and halo. It will use high-resolution, high signal-to-noise infrared spectroscopy...
(APOGEE) - Multi-object APO Radial Velocity Exoplanet Large-area SurveyMulti-object APO Radial Velocity Exoplanet Large-area SurveyThe Multi-object APO Radial Velocity Exoplanet Large-area Survey ' is a ground-based Doppler survey of 11,000 of the brightest stars. The project will use the SDSS telescope and new multi-object Doppler instruments to monitor radial velocities...
(MARVELS) - Sloan Extension for Galactic Understanding and Exploration 2Sloan Extension for Galactic Understanding and Exploration 2The Sloan Extension for Galactic Understanding and Exploration 2 is an astronomical survey designed to map the outer reaches of the Milky Way with a spectra of 240,000 stars...
(SEGUE-2)