The first focused hard X-ray images of the Sun with NuSTAR

Grefenstette, B. W. et al. (2016) The first focused hard X-ray images of the Sun with NuSTAR. Astrophysical Journal, 826(1), 20. (doi:10.3847/0004-637X/826/1/20)

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Abstract

We present results from the the first campaign of dedicated solar observations undertaken by the Nuclear Spectroscopic Telescope ARray (NuSTAR) hard X-ray (HXR) telescope. Designed as an astrophysics mission, NuSTAR nonetheless has the capability of directly imaging the Sun at HXR energies (>3 keV) with an increase in sensitivity of at least two magnitude compared to current non-focusing telescopes. In this paper we describe the scientific areas where NuSTAR will make major improvements on existing solar measurements. We report on the techniques used to observe the Sun with NuSTAR, their limitations and complications, and the procedures developed to optimize solar data quality derived from our experience with the initial solar observations. These first observations are briefly described, including the measurement of the Fe K-shell lines in a decaying X-class flare, HXR emission from high in the solar corona, and full-disk HXR images of the Sun.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Hannah, Dr Iain and Hudson, Dr Hugh
Authors: Grefenstette, B. W., Glesener, L., Krucker, S., Hudson, H., Hannah, I. G., Smith, D. M., Vogel, J. K., White, S. M., Madsen, K. K., Marsh, A. J., Caspi, A., Chen, B., Shih, A., Kuhar, M., Boggs, S. E., Christensen, F. E., Craig, W. W., Forster, K., Hailey, C. J., Harrison, F. A., Miyasaka, H., Stern, D., and Zhang, W. W.
College/School:College of Science and Engineering > School of Physics and Astronomy
Journal Name:Astrophysical Journal
Publisher:IOP Publishing
ISSN:1538-4357
ISSN (Online):1538-4357
Published Online:18 July 2016
Copyright Holders:Copyright © 2016 The American Astronomical Society
First Published:First published in Astrophysical Journal 826(1):20
Publisher Policy:Reproduced in accordance with the copyright policy of the publisher
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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
617953The many scales of flaring energy release on the SunIain HannahRoyal Society (ROYSOC)UF120063S&E P&A - PHYSICS & ASTRONOMY