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The Magnetic Activity Sunlike Stars
Science, 1984Sunspots, flares, and the myriad time-varying "events" observable in the Sun—the only star whose surface we can examine in detail—are testimony that the Sun is a magnetically variable or active star. Its magnetic field, carried into interplanetary space by the solar wind, produces observable changes in Earth's magnetosphere and variations in the flux ...
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Advances in Space Research, 1983
Abstract The most notable manifestations of stellar activity are reviewed with particular emphasis on the merging picture of solar-type activity in physical conditions different from those in the Sun. Evidence for starspots, plages and high-level coronal emissions is presented from observations covering a wide range of spectral bands: from X-ray to ...
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Abstract The most notable manifestations of stellar activity are reviewed with particular emphasis on the merging picture of solar-type activity in physical conditions different from those in the Sun. Evidence for starspots, plages and high-level coronal emissions is presented from observations covering a wide range of spectral bands: from X-ray to ...
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Activities: Starring in Mathematics
The Mathematics Teacher, 1991Making conjectures, gathering evidence, and building an argument to support such notions are fundamental to doing mathematics. (NCTM 1989, 6)In grades 5-8, the mathematics curriculum should include explorations of patterns and functions so that students can… describe, extend, analyze, and create a wide variety of patterns. (NCTM 1989, 98)
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Active Longitudes and Rotation of Active Stars
1996The interpretation of light curves and line profiles of active stars indicates that surface features exist at different atmospheric heights and these features, assumed as tracers of stellar rotation, suggest the persistence of active longitudes for timescales up to decades, as well as a differential rotation regime.
M. Rodonò, A. F. Lanza
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Advances in Space Research, 1990
A review of some hard X-ray and gamma-ray sources is presented. These objects are strongly suspected to be associated with neutron stars. Examples include gamma ray bursters, soft gamma repeaters, the June 10, 1974 transient, and Geminga. It is argued that such objects probably constitute the majority of observable galactic neutron stars.
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A review of some hard X-ray and gamma-ray sources is presented. These objects are strongly suspected to be associated with neutron stars. Examples include gamma ray bursters, soft gamma repeaters, the June 10, 1974 transient, and Geminga. It is argued that such objects probably constitute the majority of observable galactic neutron stars.
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2020
The Sun is the star closest to us and the only star where details can be directly observed. By comparison of the parameters describing the Sun with other stars, we understand the physics of stars in more detail and by comparing e.g. our present Sun with stars that are younger or older than the Sun, we can learn about the evolution of the Sun, its ...
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The Sun is the star closest to us and the only star where details can be directly observed. By comparison of the parameters describing the Sun with other stars, we understand the physics of stars in more detail and by comparing e.g. our present Sun with stars that are younger or older than the Sun, we can learn about the evolution of the Sun, its ...
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American Cancer Society nutrition and physical activity guideline for cancer survivors
Ca-A Cancer Journal for Clinicians, 2022Colleen Spees +2 more
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American Cancer Society guideline for diet and physical activity for cancer prevention
Ca-A Cancer Journal for Clinicians, 2020Colleen Spees +2 more
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Nutrition and physical activity guidelines for cancer survivors
Ca-A Cancer Journal for Clinicians, 2012Wendy Demark-Wahnefried +2 more
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