The restless sun
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| Format: | Buch |
| Sprache: | English |
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Washington, DC u.a.
Smithsonian Inst. Pr.
1989
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| Schriftenreihe: | Smithsonian library of the solar system
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| 100 | 1 | |a Wentzel, Donat G. |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a The restless sun |
| 264 | 1 | |a Washington, DC u.a. |b Smithsonian Inst. Pr. |c 1989 | |
| 300 | |a XIII, 279 S. |b Ill., Kt. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 490 | 0 | |a Smithsonian library of the solar system | |
| 650 | 4 | |a Astrophysique | |
| 650 | 4 | |a Astrophysics | |
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Datensatz im Suchindex
| _version_ | 1819617002881286144 |
|---|---|
| adam_text | The Restless Sun
o
Donat G Wentzel
Smithsonian Institution Press
Washington, D C
London
Contents
Preface xi
Introduction: The Many Time Scales
of the Sun 1
Time Scales, 1; Flares, 1; Spots, 4; Solar Cycles, 7;
Corona, 8; Effects on Climate?, 10; Solar Lifetime, 11
Part I The Layered Sun: Structure and Evolution 13
1 Terrestrial Prejudices: The Solar Fires 15
Seventeenth Century: Size and Mass, 15; Nineteenth
Century: Power and Luminosity, 17; Fuels: Wood or
Coal?, 18; Fraunhofer and the Solar Spectrum, 19; Solar
Chemical Composition, 20; Lord Kelvin and Gravity, 22;
Einstein and Nuclear Energy, 23; Nuclear Fusion, 24;
Solar Structure, 25; Solar Lifetime, 27; Solar Fate, 28
2 Solar Interior: Neutrinos 29
Star Tests, 29; Neutrinos, 30; Surprise, 34; Solar Central
Temperature, 36; Basic Physics, 39; Do We See the Sun
at Night?, 40; International Collaboration, 40
3 Eclipse! 42
Totality, 42; Shadowplay, 43; Safety, 43; Lunar
Mountains, 47; Chromosphere, 48; Prominences, Spicules,
48; Corona, 50; Expedition, 54; Year After, 55; Solar
vll
vill Contents
Atmosphere, 56; Megadegrees, 58; X rays, 59; More
Expeditions, 60
4 Active Regions 62
Observing Continuity, 62; X rays and Streamers, 62;
Photosphere: Sunspots, 63; Chromosphere:
Spectroheliogram, 64; Active Regions, 64; Skylab, 65;
Loops, 68; Temperature Structure, 69; Diagnostics, 71;
Transition Region, 73; Atomic Notation, 74; Corona, 74
Part II The Active Sun 79
5 Sunspots and Magnetism 81
Symptoms, 81; Why Dark?, 82; Convection, Granulation,
83; Why Less Hot?, 85; Magnetism, 85; Zeeman Splitting,
86; Visualization, 87; Magnetic Fields, 89; Sunspot
Model, 92; Foreshortening, 94; Coronal Loops, 94; Hairy-
Ball Model, 96; Electrical Currents, 96
6 The Solar Cycles 99
Butterfly Diagram, 99; What Next?, 101; Skylab, 103;
Hubble Space Telescope, 104; Twenty-two-Year Cycle,
105; Superficial Blemishes?, 107; Magnetogram, 108;
Emerging Magnetic Flux, 108; X-ray Bright Points, 110
7 Dynamo 112
Flux Tubes, 112; Magnetic Forces, 113; Magnetic
Buoyancy, 116; Frozen-in-Field Lines, 117; Magnetic
Anchors, 119; Magnetic Reversal, 120; Differential
Rotation, 121; Solar Dynamo, 122
8 Skylab, Coronal Loops, and Einstein 125
Sonic Booms, 125; Shock Waves, 125; Skylab Again:
Magnetic Structure, 126; Orbiting Solar Observatory,
127; Loop Structure, 127; Temperature Control, 129;
Heat Conduction, 130; Density Adjustment, 131; Coronal
Heating by Alfven Waves, 132; Leap to the Stars, 134;
Einstein Results, 136
Contents ix
9 The Combed Corona 137
Space Advantages, 137; Coronagraph, 137; Long-lived
Streamers, 138; Transients, 139; Speed of Ascent, 140;
Loss of Corona, 141; Combing the Corona, 143; Magnetic
Disequilibrium, 144; Coronal Heating by Microflares,
145; Guaranteed Magnetic Turmoil, 146; Microflares,
147; Coronal Heating and Transients, 147
10 Coronal Holes and the Solar Wind 149
Coronal Hole Number One, 149; Magnetic Neglect, 149;
Why Dark?, 150; Solar Wind Prediction, 151; Source of
Wind: Coronal Holes, 152; Fast Winds: Magnetic Control,
153; Slow Winds, 154; Wind Speed Data, 155; Comet
Tails, 158; The Earth s Magnetosphere, 160; Terrestrial
Effects of the Solar Dynamo, 160
Part III Solar Flares 163
11 Solar Flares 165
White Light, 165; Hydrogen Light, 165; A Great Flare,
167; Explosion, 169; Flare Energy, 169; Radio
Observations, 170; Fast Electrons, 174; Shocks, 175; The
Coronal Flare, 176; Flare Temperatures, 177; Hot Stuff,
178; Dynamic Flares, 180
12 A Stressful Situation 182
Model of a Flare, 182; Magnetic Arches, 183;
Chromosphefic Explosion, 183; Pre-flare Activity, 185;
Vector Magnetograph, 186; Explosive Release, 188; Very
Large Array, 190; Coronal Magnetic Fields, 190; Flare
Buildup, 194; Flare Warnings?, 194
13 Cosmic Rays and Fermi 196
Energy Ranges, 196; Accelerators, Cosmic and
Terrestrial, 197; Electron Acceleration: How Fast?, 199;
Efficiency, 200; Plasma Acceleration: Surf Riding, 201;
Fermi Acceleration: Ping-Pong, 202; Shock Acceleration,
204; Proton Acceleration: Crucial Observation, 205
Contents
Part IV Perspectives 209
14 Terrestrial Responses to Solar Changes 211
Dramatic Flare Effects, 211; Chain of Connections, 211;
Timing, 212; Prompt Effects: Communications and Solar
Cosmic Rays, 213; Delayed Effects, 214; Aurora, 215;
Magnetic Storms, 216; Magnetic Poles, 217; Effects of
Solar Activity, 217; Winter Storms, 218; Droughts, 220;
Carbon 14, 221; Maunder Minimum, 222; Doubts, 223;
Ancient Solar Cycles?, 224; The Solar Constant, 224; Is
the Sun Shrinking?, 226
15 The Solar-Stellar Connection: Is the Sun a Common
Star? 228
The Nearest Star, 228; Is the Sun a Star?, 228; Are Stars
Like the Sun?, 229; Hot versus Cool Stars, 230; Starspots,
230; Chromospheric Activity, 232; Stellar Rotation, 232;
Dynamo Again, 233; Differential Rotation?, 234; Stellar
Cycles, 236; Where to Monitor the Stars, 236; Stellar
Activity, 237; The Young Sun, 238; Flare Stars, 241; The
Young Active Sun?, 241; Lunar and Meteoritic
Confirmation, 242
16 The Solar Chimes 243
Star Tests Again, 243; Stellar Pulsations, 243; Analogy:
Sounds from an Organ Pipe, 244; Five-minute Oscillations,
246; The Tones of a Bell, 248; Frequencies and Patience,
249; Angular Patterns, 251; Results on Helium, Convection,
Rotation, 252; The Solar Clapper, 254; Stellar Oscillations,
255; Quantitative Measurements, 256
17 Before You Can Analyze Your Results 257
Solar Science Became Big Science, 257; Interdisciplinary
Science, 258; Who Becomes a Solar Scientist?, 259;
Spaceflight Experiments, 261; New Start of a Major
Mission, 262; Solar Maximum Mission (SMM), 263;
International Solar Polar Mission (ISPM), 264;
International Collaboration, 265; High Spatial
Resolution, 267; Visibility of Solar Science, 271;
Intellectual Quality of Life, 273
Indexes 274
|
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| geographic_facet | Soleil Sun Sonne |
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| illustrated | Illustrated |
| indexdate | 2024-12-23T10:31:41Z |
| institution | BVB |
| isbn | 0874749824 |
| language | English |
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| physical | XIII, 279 S. Ill., Kt. |
| publishDate | 1989 |
| publishDateSearch | 1989 |
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| publisher | Smithsonian Inst. Pr. |
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| series2 | Smithsonian library of the solar system |
| spellingShingle | Wentzel, Donat G. The restless sun Astrophysique Astrophysics Astrophysik (DE-588)4003326-0 gnd |
| subject_GND | (DE-588)4003326-0 (DE-588)1236963652 |
| title | The restless sun |
| title_auth | The restless sun |
| title_exact_search | The restless sun |
| title_full | The restless sun |
| title_fullStr | The restless sun |
| title_full_unstemmed | The restless sun |
| title_short | The restless sun |
| title_sort | the restless sun |
| topic | Astrophysique Astrophysics Astrophysik (DE-588)4003326-0 gnd |
| topic_facet | Astrophysique Astrophysics Astrophysik Soleil Sun Sonne |
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