Title

STROBE-X: A probe-class mission for x-ray spectroscopy and timing on timescales from microseconds to years

Authors

Paul S. Ray, Naval Research Laboratory
Zaven Arzoumanian, NASA Goddard Space Flight Center
Søren Brandt, Danmarks Tekniske Universitet
Eric Burns, NASA Goddard Space Flight Center
Deepto Chakrabarty, MIT Kavli Institute for Astrophysics and Space Research
Marco Feroci, Istituto Nazionale Di Astrofisica, Rome
Keith C. Gendreau, NASA Goddard Space Flight Center
Olivier Gevin, Institut de Recherche sur les Lois Fondamentales de l'Univers
Margarita Hernanz, Instituto de Estudios Espaciales de Cataluña
Peter Jenke, The University of Alabama in Huntsville
Steven Kenyon, NASA Goddard Space Flight Center
José Luis Gálvez, Instituto de Estudios Espaciales de Cataluña
Thomas J. MacCarone, Texas Tech University
Takashi Okajima, NASA Goddard Space Flight Center
Ronald A. Remillard, MIT Kavli Institute for Astrophysics and Space Research
Stéphane Schanne, Institut de Recherche sur les Lois Fondamentales de l'Univers
Chris Tenzer, Universität Tübingen
Andrea Vacchi, Università degli Studi di Udine
Colleen A. Wilson-Hodge, NASA Marshall Space Flight Center
Berend Winter, UCL Mullard Space Science Laboratory
Silvia Zane, UCL Mullard Space Science Laboratory
David R. Ballantyne, Georgia Institute of Technology
Enrico Bozzo, Université de Genève
Laura W. Brenneman, Smithsonian Astrophysical Observatory
Edward Cackett, Wayne State University
Alessandra De Rosa, Istituto Nazionale Di Astrofisica, Rome
Adam Goldstein, Universities Space Research Association
DIeter H. Hartmann, Clemson University
Michael McDonald, MIT Kavli Institute for Astrophysics and Space Research
Abigail L. Stevens, Michigan State University
John A. Tomsick, Space Sciences Laboratory at UC Berkeley
Anna L. Watts, Universiteit van Amsterdam
Kent S. Wood, Praxis, Inc.

Document Type

Conference Proceeding

Publication Date

1-1-2018

Abstract

We describe the Spectroscopic Time-Resolving Observatory for Broadband Energy X-rays (STROBE-X), a probeclass mission concept that will provide an unprecedented view of the X-ray sky, performing timing and spectroscopy over both a broad energy band (0.2-30 keV) and a wide range of timescales from microseconds to years. STROBE-X comprises two narrow-field instruments and a wide field monitor. The soft or low-energy band (0.2-12 keV) is covered by an array of lightweight optics (3-m focal length) that concentrate incident photons onto small solid-state detectors with CCD-level (85-175 eV) energy resolution, 100 ns time resolution, and low background rates. This technology has been fully developed for NICER and will be scaled up to take advantage of the longer focal length of STROBE-X. The higher-energy band (2-30 keV) is covered by large-area, collimated silicon drift detectors that were developed for the European LOFT mission concept. Each instrument will provide an order of magnitude improvement in effective area over its predecessor (NICER in the soft band and RXTE in the hard band). Finally, STROBE-X offers a sensitive wide-field monitor (WFM), both to act as a trigger for pointed observations of X-ray transients and also to provide high duty-cycle, high time-resolution, and high spectral-resolution monitoring of the variable X-ray sky. The WFM will boast approximately 20 times the sensitivity of the RXTE All-Sky Monitor, enabling multi-wavelength and multi-messenger investigations with a large instantaneous field of view. This mission concept will be presented to the 2020 Decadal Survey for consideration.

Publication Source (Journal or Book title)

Proceedings of SPIE - The International Society for Optical Engineering

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