The Wide Field Monitor onboard the eXTP mission

M. Hernanz (a1; a2); S. Brandt (b); M. Feroci (c1; c2); P. Orleanski; (d); A. Santangelo (f); S. Schanne (g); Xin Wu (e); J. in't Zand (h); S.N.; Zhang (i); Y.P. Xu (i); E. Bozzo (j); Y. Evangelista (c1; c2); J. L. G\'alvez; (a1; a2); C. Tenzer (f); F. Zwart (h); F.J. Lu (i); S. Zhang (i); T.X. Chen; (i); F. Ambrosino (c1); A. Argan (c1; c2); E. Del Monte (c1; c2); C.; Budtz-J{\o}rgensen (b); N. Lund (b); P. Olsen (b); C. Mansanet (a1); R.; Campana (k); F. Fuschino (k); C. Labanti (k); A. Rachevski (l); A. Vacchi (l,; m); G. Zampa (l); N. Zampa (l); I. Rashevskaya (n); P. Bellutti (o); G.; Borghi (o); F. Ficorella (o); A. Picciotto (o); N. Zorzi (o); O. Limousin; (g); A. Meuris (g) (on behalf of the eXTP Consortium) ((a1) Institute of; Space Sciences (ICE; CSIC); Campus UAB; Can Magrans s/n; 08193 Cerdanyola del; Vall\`es (Barcelona); Spain; (a2) Institut d'Estudis Espacials de Catalunya; (IEEC); 08034 Barcelona; Spain; (b) DTU Space - National Space Institute,; Elektrovej Building 327; DK-2800 Kgs. Lyngby; Denmark; (c1) INAF/IAPS; Via; Fosso del Cavaliere 100; I-00133 Roma; Italy; (c2) INFN - Roma Tor Vergata,; Via della Ricerca Scientifica 1; I-00133 Roma; Italy; (d) Space Research; Center; Polish Academy of Sciences; Bartycka 18a; PL-00-716 Warszawa; Poland,; (e) DPNC; Geneve University; Quai Ernest-Ansermet 30; 1205 Geneva,; Switzerland; (f) Institut f\"ur Astronomie und Astrophysik; Eberhard Karls; Universit\"at; 72076 T\"ubingen; Germany; (g) CEA Paris-Saclay/IRFU; F-91191; Gif sur Yvette; France; (h) SRON Netherlands Institute for Space Research,; Sorbonnelaan 2; 3584 CA Utrecht; the Netherlands; (i) Key Laboratory for; Particle Astrophysics; Institute of High Energy Physics; Beijing 100049,; China; (j) Department of Astronomy; University of Geneva; Chemin d'Ecogia 16,; 1290; Versoix; Switzerland; (k) INAF/OAS; Bologna; Italy; (l) INFN Sez.; Trieste; Trieste; Italy; (m) Univ. of Udine; Udine; Italy; (n) INFN-TIFPA,; Trento; Italy; (o) FBK; Trento; Italy)

arXiv:1807.09330·astro-ph.IM·August 15, 2019·1 cites

The Wide Field Monitor onboard the eXTP mission

M. Hernanz (a1, a2), S. Brandt (b), M. Feroci (c1, c2), P. Orleanski, (d), A. Santangelo (f), S. Schanne (g), Xin Wu (e), J. in't Zand (h), S.N., Zhang (i), Y.P. Xu (i), E. Bozzo (j), Y. Evangelista (c1, c2), J. L. G\'alvez, (a1, a2), C. Tenzer (f), F. Zwart (h), F.J. Lu (i)

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TL;DR

The eXTP mission's Wide Field Monitor is a wide-band X-ray instrument designed for the 2025 launch, featuring advanced Silicon Drift Detectors and coded mask cameras for broad sky coverage and precise source localization.

Contribution

This paper presents the design and expected performance of the eXTP/WFM, including improvements over the earlier LOFT concept, for the first time.

Findings

01

Wide field of view of 90x180 degrees

02

Source localization accuracy of ~1 arcmin

03

Use of Silicon Drift Detectors for X-ray detection

Abstract

The eXTP (enhanced X-ray Timing and Polarimetry) mission is a major project of the Chinese Academy of Sciences (CAS) and China National Space Administration (CNSA) currently performing an extended phase A study and proposed for a launch by 2025 in a low-earth orbit. The eXTP scientific payload envisages a suite of instruments (Spectroscopy Focusing Array, Polarimetry Focusing Array, Large Area Detector and Wide Field Monitor) offering unprecedented simultaneous wide-band X-ray timing and polarimetry sensitivity. A large European consortium is contributing to the eXTP study and it is expected to provide key hardware elements, including a Wide Field Monitor (WFM). The WFM instrument for eXTP is based on the design originally proposed for the LOFT mission within the ESA context. The eXTP/WFM envisages a wide field X-ray monitor system in the 2-50 keV energy range, achieved through the…

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Taxonomy

TopicsCalibration and Measurement Techniques · Particle Detector Development and Performance · Nuclear Physics and Applications