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Journal ArticleDOI

Laboratory Simulation of Charge Exchange-Produced X-ray Emission from Comets

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TLDR
A charge exchange emission model is developed that successfully reproduces the soft x-ray spectrum of comet Linear C/1999 S4, observed with the Chandra X-ray Observatory.
Abstract
In laboratory experiments using the engineering spare microcalorimeter detector from the ASTRO-E satellite mission, we recorded the x-ray emission of highly charged ions of carbon, nitrogen, and oxygen, which simulates charge exchange reactions between heavy ions in the solar wind and neutral gases in cometary comae. The spectra are complex and do not readily match predictions. We developed a charge exchange emission model that successfully reproduces the soft x-ray spectrum of comet Linear C/1999 S4, observed with the Chandra X-ray Observatory.

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Citations
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Journal ArticleDOI

Review of superconducting transition-edge sensors for x-ray and gamma-ray spectroscopy

TL;DR: A review of x-ray and gamma-ray spectrometers based on arrays of superconducting transition-edge sensors (TESs) is presented in this paper, with a focus on recent progress in TES applications and in understanding TES physics.
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Highly charged ions: Optical clocks and applications in fundamental physics

TL;DR: In this article, a review discusses how a variety of ion species and transitions may optimally be used to target new applications, and presents routes to handle them in the laboratory, as well as how to handle ion species for precision spectroscopy and accurate clocks.
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Laboratory X-Ray Astrophysics

TL;DR: In this article, the authors discuss the types of data produced and illustrate how the laboratory measurements support such missions as ASCA, EUVE, Chandra, XMM, and ASTRO-E2.
References
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Journal ArticleDOI

X-ray emission from comets.

TL;DR: Theoretical and observational work has demonstrated that charge-exchange collisions of highly charged solar wind ions with cometary neutral species can explain the x-ray emission from comet Hyakutake.
Journal ArticleDOI

Implications of Solar Wind Composition for Cometary X-Rays

TL;DR: In this article, the authors model cometary X-ray emission and its variability using recently constrained composition observations from the Solar Wind Ion Composition Spectrometer on the Ulysses spacecraft (SWICS/Ulysses) and information on ion-neutral charge transfer collisions.
Journal ArticleDOI

X-ray Emissions from Comets Detected in the Röntgen X-ray Satellite All-Sky Survey

TL;DR: In this paper, the authors found that charge exchange between highly charged heavy ions in the solar wind and cometary neutrals is the dominant process for the x-ray emission of comets.
Journal ArticleDOI

Charge Exchange-Induced X-Ray Emission from Comet C/1999 S4 (LINEAR)

TL;DR: A contemporaneous 7-day soft x-ray light curve obtained using the Extreme Ultraviolet Explorer demonstrates a large increase in the comet's emission coincident with a strong solar flare on 14 and 15 July 2000.
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