An overview and performance assessment of the seven cameras of eROSITA, a space x-ray telescope launched in 2019 — ScienceDaily

Not too long ago, the eROSITA (prolonged Roentgen Study with an Imaging Telescope Array) x-ray telescope, an instrument produced by a crew of researchers at Max-Planck-Institut für Extraterrestrische Physik (MPE), has gained focus between astronomers. The instrument performs an all-sky study in the x-ray vitality band of .two-eight kilo electron volts aboard the Spectrum-Roentgen-Gamma (SRG) satellite that was introduced in 2019 from the Baikonur cosmodrome in Kazakhstan.

“The eROSITA has been made to examine the huge-scale composition of the universe and take a look at cosmological versions, including dark vitality, by detecting galaxy clusters with redshifts bigger than one, corresponding to a cosmological growth a lot quicker than the velocity of light-weight,” explained Dr. Norbert Meidinger from MPE, a element of the crew that produced the instrument. “We count on eROSITA to revolutionize our knowledge of the evolution of supermassive black holes.” The information of the developmental perform have been printed in SPIE’s Journal of Astronomical Telescopes, Instruments, and Programs (JATIS).

eROSITA is not 1 telescope, but an array of seven equivalent, co-aligned telescopes, with every single 1 composed of a mirror system and a focal-airplane digicam. The digicam assembly, in convert, is made up of the digicam head, digicam electronics, and filter wheel. The digicam head is made up of the detector and its housing, a proton protect, and a warmth pipe for detector cooling. The digicam electronics contain offer, management, and facts acquisition electronics for detector operation. The filter wheel is mounted previously mentioned the digicam head and has four positions including an optical and UV blocking filter to reduce signal noise, a radioactive x-ray source for calibration, and a shut placement that makes it possible for instrumental track record measurements.

“It really is exciting to read through about these x-ray cameras that are in orbit and enabling a broad set of scientific investigations on a main astrophysics mission,” suggests Megan Eckart of Lawrence Livermore National Laboratory, United states, who is the deputy editor of JATIS. “Dr. Meidinger and his crew supply a clear description of the components enhancement and floor testing, and wrap up the paper with a handle: initially-light-weight illustrations or photos from eROSITA and an assessment of onboard overall performance. Astrophysicists about the earth will assess facts from these cameras for yrs to occur.”

The eROSITA telescope is perfectly on its way to getting to be a recreation changer for x-ray astronomy.

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