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Dark Energy Spectroscopic Instrument: Difference between revisions
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{{ | {{<span class="error">Expansion depth limit exceeded</span>|ProgramName=Dark Energy Spectroscopic Instrument | ||
|ProgramName=Dark Energy Spectroscopic Instrument | |||
|ProgramType=Program | |ProgramType=Program | ||
|OrgSponsor=Office of High Energy Physics | |OrgSponsor=Office of High Energy Physics | ||
|TopOrganization=Department of Energy | |TopOrganization=Department of Energy | ||
|Purpose=To create the most detailed 3D map of the universe by measuring the spectra of millions of galaxies and quasars, aiming to understand the nature of dark energy, the force believed to be accelerating the universe's expansion.{{ | |Purpose=To create the most detailed 3D map of the universe by measuring the spectra of millions of galaxies and quasars, aiming to understand the nature of dark energy, the force believed to be accelerating the universe's expansion.{{<span class="error">Expansion depth limit exceeded</span>|url=https://www.desi.lbl.gov |title=Dark Energy Spectroscopic Instrument |accessdate=January 30, 2025}} | ||
|Website=https://www.desi.lbl.gov | |Website=https://www.desi.lbl.gov | ||
|ProgramStart=2015 (construction began) | |ProgramStart=2015 (construction began) | ||
|InitialFunding=$56 million from DOE{{ | |InitialFunding=$56 million from DOE{{<span class="error">Expansion depth limit exceeded</span>|url=https://www.lbl.gov/desi |title=DESI Project at Berkeley Lab |accessdate=January 30, 2025}} | ||
|Duration=Until 2026 (operations) | |Duration=Until 2026 (operations) | ||
|Historic=No | |Historic=No | ||
}} | }} | ||
'''Dark Energy Spectroscopic Instrument (DESI)''' is a scientific research instrument designed to conduct a comprehensive spectrographic survey of the universe. Installed on the Mayall Telescope at Kitt Peak National Observatory, DESI aims to map the large-scale structure of the cosmos to study dark energy, the mysterious component thought to be driving the accelerated expansion of the universe.{{ | '''Dark Energy Spectroscopic Instrument (DESI)''' is a scientific research instrument designed to conduct a comprehensive spectrographic survey of the universe. Installed on the Mayall Telescope at Kitt Peak National Observatory, DESI aims to map the large-scale structure of the cosmos to study dark energy, the mysterious component thought to be driving the accelerated expansion of the universe.{{<span class="error">Expansion depth limit exceeded</span>|url=https://www.desi.lbl.gov |title=Dark Energy Spectroscopic Instrument |accessdate=January 30, 2025}} | ||
{{ | {{<span class="error">Expansion depth limit exceeded</span>|url=https://www.desi.lbl.gov}} | ||
==Goals== | ==Goals== | ||
* Map the distribution of matter in the universe over 11 billion light-years.{{ | * Map the distribution of matter in the universe over 11 billion light-years.{{<span class="error">Expansion depth limit exceeded</span>|url=https://www.desi.lbl.gov |title=Dark Energy Spectroscopic Instrument |accessdate=January 30, 2025}} | ||
* Constrain models of dark energy by observing baryonic acoustic oscillations (BAO). | * Constrain models of dark energy by observing baryonic acoustic oscillations (BAO). | ||
* Probe the history of the universe's expansion through spectroscopic data. | * Probe the history of the universe's expansion through spectroscopic data. | ||
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==Funding== | ==Funding== | ||
The initial funding for DESI's construction was $56 million from the DOE, with additional contributions from other sources bringing the total to approximately $75 million.{{ | The initial funding for DESI's construction was $56 million from the DOE, with additional contributions from other sources bringing the total to approximately $75 million.{{<span class="error">Expansion depth limit exceeded</span>|url=https://www.lbl.gov/desi |title=DESI Project at Berkeley Lab |accessdate=January 30, 2025}} Operational costs are covered by the ongoing support from DOE and international contributions. | ||
==Implementation== | ==Implementation== | ||
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[[Category:Programs and initiatives]] | [[Category:Programs and initiatives]] | ||
[[Category:Department of Energy]] | [[Category:Department of Energy]] | ||