Dark Energy Survey

The Dark Energy Survey
	Dark Energy Survey logo
Alternative names	DES
Website	www.darkenergysurvey.org
	Related media on Commons
	[edit on Wikidata]

The Dark Energy Survey (DES) is an astronomical survey designed to constrain the properties of dark energy. It uses images taken in the near-ultraviolet, visible, and near-infrared to measure the expansion of the universe using Type Ia supernovae, baryon acoustic oscillations, the number of galaxy clusters, and weak gravitational lensing.^[1] The collaboration is composed of research institutions and universities from the United States,^[2] Australia, Brazil,^[3] the United Kingdom, Germany, Spain, and Switzerland. The collaboration is divided into several scientific working groups. The director of DES is Josh Frieman.^[4]

The DES began by developing and building Dark Energy Camera (DECam), an instrument designed specifically for the survey.^[5] This camera has a wide field of view and high sensitivity, particularly in the red part of the visible spectrum and in the near infrared.^[6] Observations were performed with DECam mounted on the 4-meter Víctor M. Blanco Telescope, located at the Cerro Tololo Inter-American Observatory (CTIO) in Chile.^[6] Observing sessions ran from 2013 to 2019; as of 2021^[update] the DES collaboration has published results from the first three years of the survey.^[7]

^ "Home". The Dark Energy Survey.
^ DES Collaboration Page, DES Collaborators.
^ DES-Brazil Archived 2014-10-22 at the Wayback Machine, DES-Brazil Consortium.
^ "The Dark Energy Survey Collaboration". www.darkenergysurvey.org. Retrieved 2015-11-21.
^ The Project - The Dark Energy Survey Collaboration, The DES Project Site.
^ ^a ^b Dark Energy Camera (DECam) Archived 2019-05-23 at the Wayback Machine, Cerro Tololo Inter-American Observatory.
^ "DES Year 3 Cosmology Results: Papers". The Dark Energy Survey. Retrieved 3 August 2021.

[1] "Home". The Dark Energy Survey.

[deshp-2] DES Collaboration Page, DES Collaborators.

[desbrazil-3] DES-Brazil Archived 2014-10-22 at the Wayback Machine, DES-Brazil Consortium.

[4] "The Dark Energy Survey Collaboration". www.darkenergysurvey.org. Retrieved 2015-11-21.

[des_data_wb-5] The Project - The Dark Energy Survey Collaboration, The DES Project Site.

[dec_cam-6] Dark Energy Camera (DECam) Archived 2019-05-23 at the Wayback Machine, Cerro Tololo Inter-American Observatory.

[7] "DES Year 3 Cosmology Results: Papers". The Dark Energy Survey. Retrieved 3 August 2021.

[1]

[2]

[3]

[4]

[5]

[6]

[7]