2021-12-02

The Hubble Space Telescope team repaired and reactivated the origin of the universe spectrometer

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d9dd51a4e60989f - The Hubble Space Telescope team repaired and reactivated the origin of the universe spectrometer

these changes will first affect the cosmic origin spectrometer. Once completed and tested within a few weeks, other Hubble instruments will get similar changes. Since the monitoring began on 1 November, the team has found no further synchronization problems

The Hubble Space Telescope team repaired and reactivated the origin of the universe spectrometer

this is a sectional view of the Hubble Space Telescope, which shows the components. The front housing houses the optical components of the telescope. In the middle of the telescope is the reaction wheel and the bracket containing the control electronics of the observatory. In the back cover are scientific instruments, gyroscopes and star trackers. These instruments are placed in containers to make them easy to disassemble and replace

the origin of the universe spectrometer focuses on ultraviolet (UV), which is the most sensitive UV spectrometer in history. It increases the sensitivity of Hubble in the UV spectrum by at least 10 times and 70 times when observing extremely dim objects. It is best at observing light spots, such as stars and quasars

the cosmic origin spectrometer (COS) installed during SM4 in 2009 expanded Hubble’s spectral capability. The instrument provides a unique ability to bring telescopes into exciting new discovery space. Cos studies the large-scale structure of the universe and how galaxies, stars and planets form and evolve. It can help determine how the elements needed for life, such as carbon and iron, were first formed

as a spectrometer, cos does not produce images, but performs spectral analysis, which is a science that decomposes light into various components. Any object that absorbs or emits light can be studied with a spectrometer to determine its characteristics, such as temperature, density, chemical composition and velocity

<img src=’https://static.cnbetacdn.com/article/2021/1201/206329833d5733c.jpgOne of the main scientific objectives of COS is to measure the structure and composition of ordinary matter, which is concentrated in the so-called “cosmic web”: narrow filaments composed of galaxies and intergalactic gas are separated by huge gaps. The cosmic net is formed by the gravity of mysterious and potential cold dark matter, while ordinary matter acts as the luminous track of filaments. Cos will use dozens of faint distant quasars as “cosmic flashlights”, whose beams have passed through the cosmic network. The absorption of these light by substances in the cosmic web will show the characteristic spectral fingerprint of these substances. This will enable Hubble observers to infer its composition and its specific location in space

observations like this, covering the vast distance and time of the whole space, will provide information about the large-scale structure of the universe and the gradual changes in the chemical composition of matter, because the universe is old enough