Astronomy Chapter 7

relatively dark spots on the sun that contain intense magnetic fields

the fine structure of bright grains covering the sun's surface

circulation in a fluid driven by heat

very large convective features in the sun's surface

a photograph (usually of the sun) taken in the light of a specific region of the spectrum

small, flamelike projections in the chromosphere of the sun

specialized teleschope that block the light of the photosphere and record the corona

the network of small magnetic loops that covers the solar surface

rapidly moving atoms and ions that escape from the solar corona and blow outward through the solar system

the study of the interior of the sun by the analysis of its modes of vibration

one of the four forces of nature; binds protons and neutrons together in atomic nuclei

one of the four forces of nature

reaction that break the nuclei of atoms into fragements

reactions that joing the nuclei of atoms to form more massive nuclei

a series of three nuclear reactions that builds a helium atom by addind together protons

an isotope of hydrogen in which the nucleus contains on proton and one neutron

a subatomic particle that has a positive chare; having the same mass and magnitude of charge as the electron and consitution the antiparticle of the electron, which is also called anantielectron

a neutral atomic particle that travels at or nearly at the speed of light

the electrostatic force of repulsion between bodies of like change

carriers evergy outward in the form of radiation from the core of the sun, and extends up to about 0.7 radii

carriers energy outward as circulating gas found between the radiative zone and the atmosphere of the sun

the process by which a rotating, convecting body of conducting matter can generate a magnetic field

the rotationg of a body in which different parts of the body have different periods of rotation

a model of the sun's magnetic cycle in which the differential rotationg of the sun winds up and tangles the solar magnetic field in a 22 year cycle

the splitting of spectral lines into multiple componenets when the atoms are in a magnetic field.

magnetic regions on the solar surface that include sunspots, prominences, flares, and similar features

a looping eruption on the solar surface

solar prominences seen from above silhouetted again bright photosphere

areas of the solar surface that are dark at X-ray wavelengths; may be the source of solar wind

the glowing light displays that result when a planet's magnetic field guides charged particles so that they strike the upper atmosphere and excite atoms to emit photons