The ART-XC X-ray telescope completed its fifth full all-sky survey, the Roscosmos press service reported on April 25.
ART-XC telescope that bears the name. MN Pavlinsky is installed at the Russian space observatory “Spektr-RG”. The fifth all-sky survey was conducted from October 19, 2023 to April 24, 2024.
The telescope carried out its first four surveys from December 2019 to March 2022. A total of eight surveys were planned, but in March 2022 the German eROSITA telescope went into sleep mode and ART-XC began to be used in a program individual: for an in-depth study of the Milky Way and observation of the most interesting areas of the sky. The study of the Milky Way was completed in the fall of 2023 and the telescope returned to continue complete studies of the sky.
Multi-view technology is used to detect fainter objects by averaging views of the same areas. Additionally, if you compare identical parts of the sky to each other, you can detect variable sources. This technology also makes it possible to neutralize unpleasant events that could spoil the study of a certain area, such as, for example, a solar flare that occurred in one of the studies. In this case, there is a study of this area in other reviews.
The next full sky survey will begin in early May. In total two reviews of this type are planned. During the fifth study, the telescope worked according to a new program that allows you to distract yourself by observing interesting or unexpected objects. For example, these objects were the supernova SN2024ggi, which erupted two weeks ago, on April 11, and the millisecond pulsar SRGA J144459.2-604207, discovered by the ART-XC telescope in February 2024.
Also read: The ART-XC telescope discovered the X-ray emission from the supernova SN2024ggi
Source: Rossa Primavera
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