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1 Report

Star Imager: ASTRID-II

Madsen, Peter Buch; Jørgensen, John Leif; Thuesen, Gøsta; Paulsen, Thomas Eide

The version of the star imager developed for Astrid II is described. All functions and features are described as well as the operations and the software protocol.

Year: 1997

Language: English

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2 Preprint article · Conference paper

NuSTAR on-ground calibration I: Imaging quality

Westergaard, Niels Jørgen Stenfeldt; Madsen, Kristin K.; Brejnholt, Nicolai; Koglin, Jason E.; Christensen, Finn Erland; Pivovaroff, Michael J.; et al. (1 more)

Proceedings of Spie — 2012

The Nuclear Spectroscopic Telescope Array (NuSTAR) launched in June 2012 carries the first focusing hard Xray (5 - 80 keV) telescope to orbit. The on-ground calibration was performed at the RaMCaF facility at Nevis, Columbia University. During the assembly of the telescopes, mechanical surface

Year: 2012

Language: English

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3 Preprint article

NuSTAR on-ground calibration: I. Imaging quality

Takahashi, Tadayuki; Murray, Stephen S.; den Herder, Jan-Willem A.; Westergaard, Niels J.; Madsen, Kristin K.; Brejnholt, Nicolai F.; et al. (4 more)

The Nuclear Spectroscopic Telescope Array (NuSTAR) launched in June 2012 carries the first focusing hard Xray (5 - 80 keV) telescope to orbit. The on-ground calibration was performed at the RaMCaF facility at Nevis, Columbia University. During the assembly of the telescopes, mechanical surface

Year: 2012

Language: English

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4 Preprint article

The First Focused Hard X-ray Images of the Sun with NuSTAR

Grefenstette, Brian W.; Glesener, Lindsay; Krucker, Säm; Hudson, Hugh; Hannah, Iain G.; Smith, David M.; et al. (17 more)

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

Year: 2016

Language: English

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5 Preprint article

Broadband x-ray imaging and spectroscopy of the Crab nebula and pulsar with NuSTAR

Madsen, Kristin K.; Reynolds, Stephen; Harrison, F. A.; An, Hongjun; Boggs, Steven; Christensen, Finn E.; et al. (9 more)

We present broadband (3-78 keV) NuSTAR X-ray imaging and spectroscopy of the Crab nebula and pulsar. We show that while the phase-averaged and spatially integrated nebula + pulsar spectrum is a power law in this energy band, spatially resolved spectroscopy of the nebula finds a break at ~9 keV

Year: 2015

Language: English

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6 Preprint article

The first X-ray imaging spectroscopy of quiescent solar active regions with NuSTAR

Hannah, Iain G.; Grefenstette, Brian W.; Smith, David M.; Glesener, Lindsay; Krucker, Säm; Hudson, Hugh S.; et al. (12 more)

We present the first observations of quiescent active regions (ARs) using NuSTAR, a focusing hard X-ray telescope capable of studying faint solar emission from high temperature and non-thermal sources. We analyze the first directly imaged and spectrally resolved X-rays above 2~keV from non-flaring

Year: 2016

Language: Undetermined

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7 Preprint article · Journal article

The First Focused Hard X-Ray Images of the Sun With NuSTAR

Grefenstette, Brian W.; Glesener, Lindsay; Krucker, Sam; Hudson, Hugh; Hannah, Iain G.; Smith, David M.; et al. (17 more)

Astrophysical Journal — 2016, Volume 826, Issue 1, pp. 20

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

Year: 2016

Language: English

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8 Preprint article

Wavelet-based image decomposition method for NuSTAR stray light background studies

Mukhin, Andrey; Krivonos, Roman; Vikhlinin, Alexey; Grefenstette, Brian; Madsen, Kristin; Wik, Daniel

analysis and free from any kind of focused X-ray flux. The method's main idea is `a trous' wavelet image decomposition, capable of detecting structures of any spatial scale and shape, which makes the method of general use. Applied to the NuSTAR data, the method provides a detector image region

Year: 2023

Language: Undetermined

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9 Journal article · Preprint article

Broadband x-ray imaging and spectroscopy of the crab nebula and pulsar with NuSTAR

Madsen, Kristin K.; Reynolds, Stephen; Harrison, Fiona; An, Hongjun; Boggs, Steven; Christensen, Finn Erland; et al. (4 more)

Astrophysical Journal — 2015, Volume 801, Issue 1, pp. 66

We present broadband (3-78 keV) NuSTAR X-ray imaging and spectroscopy of the Crab nebula and pulsar. We show that while the phase-averaged and spatially integrated nebula + pulsar spectrum is a power law in this energy band, spatially resolved spectroscopy of the nebula finds a break at ~9 keV

Year: 2015

Language: English

More...
gonjb ha pelkcdm fi
10 Preprint article · Journal article

The first X-ray imaging spectroscopy of quiescent solar active regions with NuSTAR

Hannah, Iain G.; Grefenstette, Brian W.; Smith, David M.; Glesener, Lindsay; Krucker, Säm; Hudson, Hugh S.; et al. (12 more)

Astrophysical Journal Letters — 2016, Volume 820, Issue 1, pp. L14

We present the first observations of quiescent active regions (ARs) using the Nuclear Spectroscopic Telescope Array (NuSTAR), a focusing hard X-ray telescope capable of studying faint solar emission from high-temperature and non-thermal sources. We analyze the first directly imaged and spectrally

Year: 2016

Language: English

More...
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