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

Brian W. Grefenstette; Lindsay Glesener; Säm Krucker; Hugh Hudson; Iain G. Hannah; David M. Smith; Julia K. Vogel; Stephen M. White; Kristin K. Madsen; Andrew J. Marsh; Amir Caspi; Bin Chen; Albert Shih; Matej Kuhar; Steven E. Boggs; Finn E. Christensen; William W. Craig; Karl Forster; Charles J. Hailey; Fiona A. Harrison; Hiromasa Miyasaka; Daniel Stern; William W. Zhang

doi:10.3847/0004-637X/826/1/20

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

Brian W. Grefenstette, Lindsay Glesener, Säm Krucker, Hugh Hudson, Iain G. Hannah, David M. Smith, Julia K. Vogel, Stephen M. White, Kristin K. Madsen, Andrew J. Marsh, Amir Caspi, Bin Chen, Albert Shih, Matej Kuhar, Steven E. Boggs, Finn E. Christensen, William W. Craig, Karl Forster, Charles J. Hailey, Fiona A. HarrisonHiromasa Miyasaka, Daniel Stern, William W. Zhang

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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.

Original language	English (US)
Article number	20
Journal	Astrophysical Journal
Volume	826
Issue number	1
DOIs	https://doi.org/10.3847/0004-637X/826/1/20
State	Published - Jul 20 2016

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

Keywords

Sun: X-rays, gamma rays
acceleration of particles
methods: data analysis

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10.3847/0004-637X/826/1/20

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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., ... Zhang, W. W. (2016). The first focused hard X-ray images of the sun with NuSTAR. Astrophysical Journal, 826(1), Article 20. https://doi.org/10.3847/0004-637X/826/1/20

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title = "The first focused hard X-ray images of the sun with NuSTAR",

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.",

keywords = "Sun: X-rays, gamma rays, acceleration of particles, methods: data analysis",

author = "Grefenstette, {Brian W.} and Lindsay Glesener and S{\"a}m Krucker and Hugh Hudson and Hannah, {Iain G.} and Smith, {David M.} and Vogel, {Julia K.} and White, {Stephen M.} and Madsen, {Kristin K.} and Marsh, {Andrew J.} and Amir Caspi and Bin Chen and Albert Shih and Matej Kuhar and Boggs, {Steven E.} and Christensen, {Finn E.} and Craig, {William W.} and Karl Forster and Hailey, {Charles J.} and Harrison, {Fiona A.} and Hiromasa Miyasaka and Daniel Stern and Zhang, {William W.}",

year = "2016",

month = jul,

day = "20",

doi = "10.3847/0004-637X/826/1/20",

language = "English (US)",

volume = "826",

journal = "Astrophysical Journal",

issn = "0004-637X",

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Grefenstette, BW, Glesener, L, Krucker, S, Hudson, H, Hannah, IG, Smith, DM, Vogel, JK, White, SM, Madsen, KK, Marsh, AJ, Caspi, A, Chen, B, Shih, A, Kuhar, M, Boggs, SE, Christensen, FE, Craig, WW, Forster, K, Hailey, CJ, Harrison, FA, Miyasaka, H, Stern, D & Zhang, WW 2016, 'The first focused hard X-ray images of the sun with NuSTAR', Astrophysical Journal, vol. 826, no. 1, 20. https://doi.org/10.3847/0004-637X/826/1/20

TY - JOUR

T1 - The first focused hard X-ray images of the sun with NuSTAR

AU - Grefenstette, Brian W.

AU - Glesener, Lindsay

AU - Krucker, Säm

AU - Hudson, Hugh

AU - Hannah, Iain G.

AU - Smith, David M.

AU - Vogel, Julia K.

AU - White, Stephen M.

AU - Madsen, Kristin K.

AU - Marsh, Andrew J.

AU - Caspi, Amir

AU - Chen, Bin

AU - Shih, Albert

AU - Kuhar, Matej

AU - Boggs, Steven E.

AU - Christensen, Finn E.

AU - Craig, William W.

AU - Forster, Karl

AU - Hailey, Charles J.

AU - Harrison, Fiona A.

AU - Miyasaka, Hiromasa

AU - Stern, Daniel

AU - Zhang, William W.

PY - 2016/7/20

Y1 - 2016/7/20

N2 - 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.

AB - 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.

KW - Sun: X-rays, gamma rays

KW - acceleration of particles

KW - methods: data analysis

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U2 - 10.3847/0004-637X/826/1/20

DO - 10.3847/0004-637X/826/1/20

M3 - Article

AN - SCOPUS:84979246405

SN - 0004-637X

VL - 826

JO - Astrophysical Journal

JF - Astrophysical Journal

IS - 1

M1 - 20

ER -

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

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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