Search results
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.
Vật chất tối có thể giải thích sự xuất hiện 'phẳng' của đường cong vận tốc ra bán kính lớn. Cánh tay của các thiên hà xoắn ốc xoay quanh trung tâm thiên hà. Mật độ khối phát sáng của một thiên hà xoắn ốc giảm khi người ta đi từ trung tâm ra ngoài rìa.
People also ask
What is the Dark Energy Survey?
Does Dark Energy Survey year 1 show redshift distributions of weak lensing source galaxies?
What are the first cosmology results from the Dark Energy Survey?
When did the Dark Energy Survey release mass maps?
The Dark Energy Survey (DES) is an international, collaborative effort to map hundreds of millions of galaxies, detect thousands of supernovae, and find patterns of cosmic structure that will reveal the nature of the mysterious dark energy that is accelerating the expansion of our Universe.
In the Dark Energy Survey, we measure different versions of all of these phenomena. DES uses four probes of these phenomena to measure the effects of dark energy on the expansion history of the universe and on the growth of structure.
The Dark Energy Spectroscopic Instrument ( DESI) is a scientific research instrument for conducting spectrographic astronomical surveys of distant galaxies. Its main components are a focal plane containing 5,000 fiber-positioning robots, and a bank of spectrographs which are fed by the fibers.
In physical cosmology and astronomy, dark energy is an unknown form of energy that affects the universe on the largest scales. Its primary effect is to drive the accelerating expansion of the universe.
May 17, 2021 · A five-year quest to map the universe and unravel the mysteries of “dark energy” is officially beginning today, May 17, at Kitt Peak National Observatory. Successful Start of Dark Energy Spectroscopic Instrument (DESI) Follows Record-Setting Trial Run - Berkeley Lab – Berkeley Lab News Center
