The Spectrometer/Telescope for Imaging X-rays (STIX)

被引：190

作者：

Krucker, Saem ^{[1
,2
]}

Hurford, G. J. ^{[1
,2
]}

Grimm, O. ^{[1
,3
]}

Koegl, S. ^{[1
]}

Groebelbauer, H-P ^{[1
]}

Etesi, L. ^{[1
]}

Casadei, D. ^{[1
]}

Csillaghy, A. ^{[1
]}

Benz, A. O. ^{[1
]}

Arnold, N. G. ^{[1
]}

Molendini, F. ^{[1
]}

Orleanski, P. ^{[1
]}

Schori, D. ^{[1
]}

Xiao, H. ^{[1
]}

Kuhar, M. ^{[1
]}

Hochmuth, N. ^{[1
]}

Felix, S. ^{[1
]}

Schramka, F. ^{[1
]}

Marcin, S. ^{[1
]}

Kobler, S. ^{[1
]}

Iseli, L. ^{[1
]}

Dreier, M. ^{[1
]}

Wiehl, H. J. ^{[1
]}

Kleint, L. ^{[1
]}

Battaglia, M. ^{[1
]}

Lastufka, E. ^{[1
,3
]}

Sathiapal, H. ^{[1
]}

Lapadula, K. ^{[1
]}

Bednarzik, M. ^{[4
]}

Birrer, G. ^{[4
]}

Stutz, St. ^{[4
]}

Wild, Ch. ^{[4
]}

Marone, F. ^{[4
]}

Skup, K. R. ^{[5
]}

Cichocki, A. ^{[5
]}

Ber, K. ^{[5
]}

Rutkowski, K. ^{[5
]}

Bujwan, W. ^{[5
]}

Juchnikowski, G. ^{[5
]}

Winkler, M. ^{[5
]}

Darmetko, M. ^{[5
]}

Michalska, M. ^{[5
]}

Seweryn, K. ^{[5
]}

Bialek, A. ^{[5
]}

Osica, P. ^{[5
]}

Sylwester, J. ^{[5
]}

Kowalinski, M. ^{[5
]}

Scislowski, D. ^{[5
]}

Siarkowski, M. ^{[5
]}

Steslicki, M. ^{[5
]}

机构：

[1] Univ Appl Sci & Arts Northwestern Switzerland, Bahnhofstr 6, CH-5210 Windisch, Switzerland

[2] Univ Calif Berkeley, Space Sci Lab, 7 Gauss Way, Berkeley, CA 94720 USA

[3] Swiss Fed Inst Technol, Ramistr 101, CH-8092 Zurich, Switzerland

[4] Paul Scherrer Inst, CH-5232 Villigen, Switzerland

[5] Polish Acad Sci, Space Res Ctr, Bartycka 18A, PL-00716 Warsaw, Poland

[6] Univ Wroclaw, Astron Inst, Wroclaw, Poland

[7] Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France

[8] Univ Paris Diderot, Sorbonne Paris Cite, CEA, AIM,CNRS, F-91191 Gif Sur Yvette, France

[9] Univ Paris Saclay, CEA, IRFU, F-91191 Gif Sur Yvette, France

[10] Univ Paris, Sorbonne Univ, Univ PSL, CNRS,Observ Paris,LESIA, 5 Pl Jules Janssen, F-92195 Meudon, France

[11] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 USA

[12] Czech Acad Sci, Astron Inst, Ondrejov, Czech Republic

[13] Leibniz Inst Astrophys Potsdam AIP, Sternwarte 16, D-14482 Potsdam, Germany

[14] Karl Franzens Univ Graz, Inst Phys, A-8010 Graz, Austria

[15] Trinity Coll Dublin, Sch Phys, Astrophys Res Grp, Dublin 2, Ireland

[16] Dublin Inst Adv Studies, Sch Cosm Phys, 31 Fitzwilliam Pl, Dublin D02 XF86, Ireland

[17] Northumbria Univ, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England

[18] Univ Genoa, Dipartimento Matemat, Via Dodecaneso 35, I-16146 Genoa, Italy

[19] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[20] Catholic Univ Amer, Greenbelt, MD 20771 USA

[21] NASA, Solar Phys Lab, Goddard Space Flight Ctr, Code 671, Greenbelt, MD USA

[22] Van Beek Consultancy, Arnhem, Netherlands

[23] Univ Alcala, Space Res Grp, Alcala De Henares 28805, Spain

来源：

ASTRONOMY & ASTROPHYSICS | 2020年 / 642卷

关键词：

instrumentation: miscellaneous; Sun: X-rays; gamma rays; Sun: chromosphere; Sun: corona;

D O I：

10.1051/0004-6361/201937362

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Aims. The Spectrometer Telescope for Imaging X-rays (STIX) on Solar Orbiter is a hard X-ray imaging spectrometer, which covers the energy range from 4 to 150 keV. STIX observes hard X-ray bremsstrahlung emissions from solar flares and therefore provides diagnostics of the hottest (?10 MK) flare plasma while quantifying the location, spectrum, and energy content of flare-accelerated nonthermal electrons.Methods. To accomplish this, STIX applies an indirect bigrid Fourier imaging technique using a set of tungsten grids (at pitches from 0.038 to 1 mm) in front of 32 coarsely pixelated CdTe detectors to provide information on angular scales from 7 to 180 arcsec with 1 keV energy resolution (at 6 keV). The imaging concept of STIX has intrinsically low telemetry and it is therefore well-suited to the limited resources available to the Solar Orbiter payload. To further reduce the downlinked data volume, STIX data are binned on board into 32 selectable energy bins and dynamically-adjusted time bins with a typical duration of 1 s during flares.Results. Through hard X-ray diagnostics, STIX provides critical information for understanding the acceleration of electrons at the Sun and their transport into interplanetary space and for determining the magnetic connection of Solar Orbiter back to the Sun. In this way, STIX serves to link Solar Orbiter's remote and in-situ measurements.

引用

页数：21

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