Revolution of astronomy: 4Most starts large -scale sky through patterns!

Revolution of astronomy: 4Most starts large -scale sky through patterns!

Paranal-Observatorium, Chile - On May 23, 2025, the 4Most (4-meter multi-object Spectroscopic Telescope) will be officially put into operation. This innovative instrument is a through -pattern device that can also observe thousands of astronomical objects. It is installed on the Vista telescope in the Paranal Observatory in Chile and aims to provide extensive spectroscopic data for heavenly patterns and various scientific programs. Pro Physics reports that 4Most in particular serves to research the galactic archeology, the mapping of the large-scale structure of the universe and the chemical enrichment of the Milky Way.

The telescope also enables short -lived astrophysical phenomena, such as changes in brightness in stars, supernovae, gamma -ray outburts and quasars. It has the special ability to carry out both low and high-resolution spectroscopy, which makes it the current state of the art.

technical features and team

The construction of 4Most started in 2015 and combined the expertise of over 300 scientists and engineers from more than 15 different institutions worldwide. Important partners are the Leibniz Institute for Astrophysics Potsdam (AIP) as well as several Max Planck Institute and Universities from Germany, Australia, France, the Netherlands, Sweden, Switzerland and Great Britain. At that time, 4Most was selected by the European South Sternhewarte (ESO) to provide a modern, fiber -powered facility for spectroscopic through patterns.

The telescope can also cover spectra of up to 2400 objects via a hexagonal field of view of 4.2 square degrees. When commissioning, the components of the instrument will be shipped to Chile, with the high -resolution spectrograph (HRS) being on site on June 10, 2025. This is supported by the Aesop fiber positioning system, a robotics system for the precise positioning of 2436 fiber.

scientific importance

4Most will not only provide significant data for projects such as GAIA, Erosita and Euclid, but will also add existing and upcoming floor -assisted facilities, including Vera Rubin Observatory and SKA. The spectroscopic magnitude limits of 4Most are tailored to the astrometric limits of GAIA. This will make it possible to acquire spectra for Gaia's weakest astrometric goals and to determine high -quality radial speeds of up to 100 KPC.

In addition, 4Most will enable detailed chemical abundance patterns and age regulations for millions of stars. It is expected that the telescope will also make significant contributions to galaxy development and cosmology by pursuing the assembly of the actuator and dark matter over time.

Overall, the observation strategy of 4Most is ambitious. The Vista telescope is used for at least five years exclusively for observations with 4Most, with 70 % of the observation time assigned to the 4-must consortium. This time is used for ten different, interconnected surveys that are known as consortial surveys. In addition, 30 % of the ESO community's observation period are available. A selection of 15 community surveys was approved by ESO in January 2022.

The official performance and a special event for media representatives are planned for June 10, 2025, in which interested parties will have the opportunity to learn more about the scientific goals of experiencing the through -pattern strategies and the operation of the telescope in Chile. have a revolutionary influence on numerous key areas of contemporary astrophysics.