Ongoing space physics - Astrophysics connections

David Eichler

doi:10.1016/j.asr.2004.12.079

Ongoing space physics - Astrophysics connections

David Eichler

Department of Physics

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

I review several ongoing connections between space physics and astrophysics: (a) Measurements of energetic particle spectra have confirmed theoretical prediction of the highest energy to which shocks can accelerate particles, and this has direct bearing on the origin of the highest energy cosmic rays: (b) Mass ejection in solar flares may help us to understand photon ejection in the giant flares of magnetar outbursts: (c) Measurements of electron heat fluxes in the solar wind can help us to understand whether heat flux in tenuous astrophysical plasma is in accordance with the classical Spitzer-Harm formula or whether it is reduced well below this value by plasma instabilities.

Original language	English
Pages (from-to)	16-20
Number of pages	5
Journal	Advances in Space Research
Volume	38
Issue number	1
DOIs	https://doi.org/10.1016/j.asr.2004.12.079
State	Published - 1 Jan 2006

Keywords

Cosmic rays
Flares: solar, magnetar
Heat conduction
Plasma

ASJC Scopus subject areas

Aerospace Engineering
Astronomy and Astrophysics
Geophysics
Atmospheric Science
Space and Planetary Science
General Earth and Planetary Sciences

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10.1016/j.asr.2004.12.079

Cite this

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abstract = "I review several ongoing connections between space physics and astrophysics: (a) Measurements of energetic particle spectra have confirmed theoretical prediction of the highest energy to which shocks can accelerate particles, and this has direct bearing on the origin of the highest energy cosmic rays: (b) Mass ejection in solar flares may help us to understand photon ejection in the giant flares of magnetar outbursts: (c) Measurements of electron heat fluxes in the solar wind can help us to understand whether heat flux in tenuous astrophysical plasma is in accordance with the classical Spitzer-Harm formula or whether it is reduced well below this value by plasma instabilities.",

keywords = "Cosmic rays, Flares: solar, magnetar, Heat conduction, Plasma",

author = "David Eichler",

note = "Funding Information: I thank the hospitality of the Kavli Institute of Particle Astrophysics and Cosmology where this paper was written. I acknowledge the support of an Israel-U.S. Binational Science Foundation Grant, an Israeli Science Foundation Center of Excellence Grant for High Energy Astrophysics, and the Arnow Chair of Theoretical Physics. ",

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AB - I review several ongoing connections between space physics and astrophysics: (a) Measurements of energetic particle spectra have confirmed theoretical prediction of the highest energy to which shocks can accelerate particles, and this has direct bearing on the origin of the highest energy cosmic rays: (b) Mass ejection in solar flares may help us to understand photon ejection in the giant flares of magnetar outbursts: (c) Measurements of electron heat fluxes in the solar wind can help us to understand whether heat flux in tenuous astrophysical plasma is in accordance with the classical Spitzer-Harm formula or whether it is reduced well below this value by plasma instabilities.

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Ongoing space physics - Astrophysics connections

Abstract

Keywords

ASJC Scopus subject areas

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