MVN: x-ray monitor of the sky on Russian segment of ISS
| Autor: | D. Sibirtsev, A. Tkachenko, M. N. Pavlinsky, D. Simonenkov, A. Markov, N. Semena, V. Konoshenko, V. Levin, M. G. Revnivtsev, A. Rotin, S. Molkov, D. V. Serbinov, E. Gurova, V. Tambov, V. Akimov, I. Lapshov, Maria Kuznetsova, M. Buntov |
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| Rok vydání: | 2012 |
| Předmět: |
Physics
Background subtraction COSMIC cancer database Spectrometer business.industry Astrophysics::High Energy Astrophysical Phenomena media_common.quotation_subject Astrophysics::Instrumentation and Methods for Astrophysics Field of view Orbital mechanics Optics Sky International Space Station business Zenith media_common |
| Zdroj: | SPIE Proceedings. |
| ISSN: | 0277-786X |
| Popis: | MVN (Monitor Vsego Neba) - new small X-ray astronomical experiment, which will be mounted on Russian segment of International Space Station. The main scientific goal for the instrument is the precise measurement of cosmic X-ray background in energy range 6-70 keV, which is important for theories of black hole evolution in the Universe. The ultimate aim of the experiment is to reach the accuracy of the CXB measurements, which will allow us to measure the large scale anisotropy of the Cosmic X-ray Background caused by inhomogeneities of the matter distribution in the local Universe. The MVN instrument is a simple collimated spectrometer, equipped with 4 CdTe pixellated detectors. The field of view of the instrument will be scanning the zenith of the ISS. The accuracy of the instrumental background subtraction, which is the main obstacle for the proposed task, will be provided by a cover, which will periodically block the aperture of detectors. According to our estimates, with not unfavourable radiation environment on orbit of ISS during period of operation of MVN we will be able to measure the CXB surface brightness at different sky directions with accuracy better than 1% after 2 years of the experiment. The planned dates of the experiment is 2013-2016. |
| Databáze: | OpenAIRE |
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