The satellite SMILE – its prospects for observing cosmic sources

We describe the scientific potential of a Soft X-ray Imager (SXI) onboard the ESA–CAS satellite SMILE to study the activity of cosmic X-ray sources in the soft X-ray region and located in the fields planned to be observed by SXI. We used the 2–3 keV band flux of the monitor MAXI/ISS, covering at le...

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Main Authors: Vojtěch Šimon, René Hudec, Andrew Read
Format: Article
Language:English
Published: CTU Central Library 2025-03-01
Series:Acta Polytechnica
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Online Access:https://ojs.cvut.cz/ojs/index.php/ap/article/view/9916
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author Vojtěch Šimon
René Hudec
Andrew Read
author_facet Vojtěch Šimon
René Hudec
Andrew Read
author_sort Vojtěch Šimon
collection DOAJ
description We describe the scientific potential of a Soft X-ray Imager (SXI) onboard the ESA–CAS satellite SMILE to study the activity of cosmic X-ray sources in the soft X-ray region and located in the fields planned to be observed by SXI. We used the 2–3 keV band flux of the monitor MAXI/ISS, covering at least part of the expected band of the SXI/SMILE telescope. We discuss how SXI can contribute to this branch and how combining the SXI/SMILE data with those obtained by other satellites on the same days can be helpful if the light curves of the 1-day means are used. We show these possibilities on several examples of cosmic X-ray sources (Vela X-1 and GROJ1008-57 containing neutron stars accreting matter from their companions) in the field of view of SXI. Including observations from MAXI/ISS and BAT/Swift will enable extending the coverage to the energy of 50 keV.
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spelling doaj-art-a00c04b01529493bb2f0c0d97b9460cf2025-08-20T02:59:23ZengCTU Central LibraryActa Polytechnica1805-23632025-03-0165110.14311/AP.2025.65.0110The satellite SMILE – its prospects for observing cosmic sourcesVojtěch Šimon0https://orcid.org/0000-0003-2446-0231René Hudec1Andrew Read2Czech Academy of Sciences, Astronomical Institute, 251 65 Ondřejov, Czech Republic; Czech Technical University in Prague, Faculty of Electrical Engineering, Department of Radioelectronics, 166 27 Prague, Czech RepublicCzech Academy of Sciences, Astronomical Institute, 251 65 Ondřejov, Czech Republic; Czech Technical University in Prague, Faculty of Electrical Engineering, Department of Radioelectronics, 166 27 Prague, Czech RepublicUniversity of Leicester, Leicester, United Kingdom We describe the scientific potential of a Soft X-ray Imager (SXI) onboard the ESA–CAS satellite SMILE to study the activity of cosmic X-ray sources in the soft X-ray region and located in the fields planned to be observed by SXI. We used the 2–3 keV band flux of the monitor MAXI/ISS, covering at least part of the expected band of the SXI/SMILE telescope. We discuss how SXI can contribute to this branch and how combining the SXI/SMILE data with those obtained by other satellites on the same days can be helpful if the light curves of the 1-day means are used. We show these possibilities on several examples of cosmic X-ray sources (Vela X-1 and GROJ1008-57 containing neutron stars accreting matter from their companions) in the field of view of SXI. Including observations from MAXI/ISS and BAT/Swift will enable extending the coverage to the energy of 50 keV. https://ojs.cvut.cz/ojs/index.php/ap/article/view/9916astronomical instrumentationmethods and techniquesobservational methodsX-ray binariesradiation mechanisms
spellingShingle Vojtěch Šimon
René Hudec
Andrew Read
The satellite SMILE – its prospects for observing cosmic sources
Acta Polytechnica
astronomical instrumentation
methods and techniques
observational methods
X-ray binaries
radiation mechanisms
title The satellite SMILE – its prospects for observing cosmic sources
title_full The satellite SMILE – its prospects for observing cosmic sources
title_fullStr The satellite SMILE – its prospects for observing cosmic sources
title_full_unstemmed The satellite SMILE – its prospects for observing cosmic sources
title_short The satellite SMILE – its prospects for observing cosmic sources
title_sort satellite smile its prospects for observing cosmic sources
topic astronomical instrumentation
methods and techniques
observational methods
X-ray binaries
radiation mechanisms
url https://ojs.cvut.cz/ojs/index.php/ap/article/view/9916
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