The solar transition region:
Gespeichert in:
| 1. Verfasser: | |
|---|---|
| Format: | Buch |
| Sprache: | English |
| Veröffentlicht: |
Cambridge, Mass. [u.a.]
Cambridge Univ. Press
1992
|
| Ausgabe: | 1. publ. |
| Schriftenreihe: | Cambridge astrophysics series
23 |
| Schlagworte: | |
| Online-Zugang: | Inhaltsverzeichnis |
| Beschreibung: | XIV, 276 S. Ill., graph. Darst. |
| ISBN: | 0521382610 |
Internformat
MARC
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| 100 | 1 | |a Mariska, John T. |e Verfasser |4 aut | |
| 245 | 1 | 0 | |a The solar transition region |c John T. Mariska |
| 250 | |a 1. publ. | ||
| 264 | 1 | |a Cambridge, Mass. [u.a.] |b Cambridge Univ. Press |c 1992 | |
| 300 | |a XIV, 276 S. |b Ill., graph. Darst. | ||
| 336 | |b txt |2 rdacontent | ||
| 337 | |b n |2 rdamedia | ||
| 338 | |b nc |2 rdacarrier | ||
| 490 | 1 | |a Cambridge astrophysics series |v 23 | |
| 650 | 7 | |a Sol |2 larpcal | |
| 650 | 7 | |a Soleil - Atmosphère |2 ram | |
| 650 | 7 | |a Soleil - Couronne |2 ram | |
| 650 | 4 | |a Soleil - Région de transition | |
| 650 | 7 | |a Spectre solaire |2 ram | |
| 650 | 4 | |a Astronomical spectroscopy | |
| 650 | 4 | |a Emission spectroscopy | |
| 650 | 4 | |a Solar atmosphere |x Spectra | |
| 650 | 0 | 7 | |a Grenzschicht |0 (DE-588)4022005-9 |2 gnd |9 rswk-swf |
| 650 | 0 | 7 | |a Chromosphäre |0 (DE-588)4258764-5 |2 gnd |9 rswk-swf |
| 651 | 4 | |a Sun |x Corona |x Spectra | |
| 651 | 7 | |a Sonne |0 (DE-588)1236963652 |2 gnd |9 rswk-swf | |
| 651 | 7 | |a Sonnenkorona |0 (DE-588)4181832-5 |2 gnd |9 rswk-swf | |
| 689 | 0 | 0 | |a Sonne |0 (DE-588)1236963652 |D g |
| 689 | 0 | 1 | |a Chromosphäre |0 (DE-588)4258764-5 |D s |
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| 830 | 0 | |a Cambridge astrophysics series |v 23 |w (DE-604)BV004154925 |9 23 | |
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| 999 | |a oai:aleph.bib-bvb.de:BVB01-005400407 | ||
Datensatz im Suchindex
| _version_ | 1804122568091762688 |
|---|---|
| adam_text | CONTENTS
Preface xiii
Introduction 1
1.1 Historical Overview 1
1.2 The UV and EUV Solar Spectrum 4
1.3 The Outer Layers of the Solar Atmosphere 7
1.4 Scope of this Book 14
Emission-Line Spectroscopy 17
2.1 Atomic Processes in the Transition Region 17
2.2 Formation of Optically-Thin Emission Lines 19
2.3 Excitation 20
2.3.1 Excitation Rates 21
2.3.2 The Two-Level Atom Approximation 25
2.4 Ionization 26
2.4.1 Ionization Balance 27
2.4.2 Time Scales 31
2.5 Abundances 34
2.6 Radiation 37
2.7 Opacity 40
2.8 Diagnostics 41
2.8.1 Temperature Diagnostics 41
2.8.2 Density Diagnostics 43
Emission-Line Intensity Observations 51
3.1 Disk Observations 51
3.2 Limb Observations 56
3.3 Temporal Observations 60
3.4 Relation to Chromospheric Fine Structure 62
3.5 Relation to the Magnetic Field 67
Contents
3.6 Relation to Coronal Structure 69
Physical Conditions 74
4.1 Methods of Calculating Emission Measures 74
4.2 Emission Measure Structure of the
Transition Region 79
4.3 Abundances 81
4.4 Density Diagnostics 84
4.4.1 Beryllium Isoelectronic Sequence 84
4.4.2 Magnesium Isoelectronic Sequence 89
4.4.3 Boron Isoelectronic Sequence 92
4.4.4 Aluminum Isoelectronic Sequence 97
4.4.5 Carbon Isoelectronic Sequence 98
4.4.6 Nitrogen Isoelectronic Sequence 99
4.4.7 Line Ratios Using Different Ions 99
4.4.8 Transition Region Density 105
4.5 Temperature Diagnostics 108
High-Resolution Spectroscopy 114
5.1 Emission-Line Profiles 114
5.2 Line Width Observations 116
5.2.1 Variation with Temperature 117
5.2.2 The Civ Line 119
5.2.3 Relation to the Cell-Network Structure 120
5.2.4 Center to Limb Observations 121
5.2.5 Energetic Implications 123
5.3 Doppler Shifts 129
5.3.1 Observations 129
5.3.2 Relation to Cell-Network Structure 133
5.3.3 Relation to Line Widths 136
5.3.4 Center to Limb Behavior 136
5.3.5 Mass Balance 137
5.3.6 Energy Balance 139
5.4 Non-Gaussian Line Profiles 141
5.4.1 Explosive Events 141
5.4.2 Jets 149
5.4.3 Relation to Bright Points and Spicules 150
5.5 Temporal Variations 151
5.6 Diagnostic Implications of a Dynamic
Transition Region 157
Contents xi
6 Empirical Transition Region Models 165
6.1 Transforming Spectroscopic Data
into Empirical Models 165
6.2 Effect of Inhomogeneous Structures 173
6.2.1 Contribution of Spicule-Like Structures 173
6.2.2 Filling Factors 176
6.2.3 Absorption by Inhomogeneous Structures 180
6.3 Consequences of the Empirical Models 182
6.3.1 Non-Maxwellian Electron Energy Distribu-
tions 182
6.3.2 Diffusion 184
6.4 Empirical Energy Balance 185
6.4.1 Global Energy Balance 186
6.4.2 Local Energy Balance 187
6.5 Examining the Energy Balance Directly Using the
Emission Measure 190
6.6 Observed Structure and Energy Balance 193
7 Physical Transition Region Models 196
7.1 Role of the Magnetic Field 196
7.2 Model Equations 200
7.3 Static Models 203
7.3.1 Scaling Laws 203
7.3.2 Static Model Solutions 205
7.3.3 Emission Measures 209
7.4 Steady Flow Models 212
7.4.1 Steady Downflow Models 212
7.4.2 Loop Flow Models 213
7.5 Dynamic Transition Region Models 219
7.6 Cool Loop Models 224
7.6.1 Static Cool Loop Models 224
7.6.2 Combined Hot and Cool Models 228
7.6.3 Radiative Losses at Low Temperatures 230
7.6.4 Flows in Cool Loops 231
7.7 Additional Physics 232
7.7.1 Diffusion 232
7.7.2 Turbulent Conduction 235
7.7.3 Conduction Across the Magnetic Field 236
8 The Transition Region in Perspective 238
8.1 Stellar Transition Regions 238
xii Contents
8.1.1 Line Intensity Observations 238
8.1.2 Physical Conditions and Empirical Models 241
8.1.3 High-Resolution Spectroscopy 244
8.1.4 Cool Stars and the Sun 246
8.2 Physical Models and Observed Structure 248
8.2.1 Observed Features 248
8.2.2 Unknowns 249
8.2.3 Model Features 250
8.2.4 Transition Region Structure 252
8.2.5 Future Work 253
References 256
Author Index 268
Subject Index 273
|
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| discipline | Physik |
| edition | 1. publ. |
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| id | DE-604.BV008183078 |
| illustrated | Illustrated |
| indexdate | 2024-07-09T17:15:56Z |
| institution | BVB |
| isbn | 0521382610 |
| language | English |
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| publisher | Cambridge Univ. Press |
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| series | Cambridge astrophysics series |
| series2 | Cambridge astrophysics series |
| spelling | Mariska, John T. Verfasser aut The solar transition region John T. Mariska 1. publ. Cambridge, Mass. [u.a.] Cambridge Univ. Press 1992 XIV, 276 S. Ill., graph. Darst. txt rdacontent n rdamedia nc rdacarrier Cambridge astrophysics series 23 Sol larpcal Soleil - Atmosphère ram Soleil - Couronne ram Soleil - Région de transition Spectre solaire ram Astronomical spectroscopy Emission spectroscopy Solar atmosphere Spectra Grenzschicht (DE-588)4022005-9 gnd rswk-swf Chromosphäre (DE-588)4258764-5 gnd rswk-swf Sun Corona Spectra Sonne (DE-588)1236963652 gnd rswk-swf Sonnenkorona (DE-588)4181832-5 gnd rswk-swf Sonne (DE-588)1236963652 g Chromosphäre (DE-588)4258764-5 s Sonnenkorona (DE-588)4181832-5 g DE-604 Grenzschicht (DE-588)4022005-9 s Cambridge astrophysics series 23 (DE-604)BV004154925 23 HBZ Datenaustausch application/pdf http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&local_base=BVB01&doc_number=005400407&sequence=000002&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA Inhaltsverzeichnis |
| spellingShingle | Mariska, John T. The solar transition region Cambridge astrophysics series Sol larpcal Soleil - Atmosphère ram Soleil - Couronne ram Soleil - Région de transition Spectre solaire ram Astronomical spectroscopy Emission spectroscopy Solar atmosphere Spectra Grenzschicht (DE-588)4022005-9 gnd Chromosphäre (DE-588)4258764-5 gnd |
| subject_GND | (DE-588)4022005-9 (DE-588)4258764-5 (DE-588)1236963652 (DE-588)4181832-5 |
| title | The solar transition region |
| title_auth | The solar transition region |
| title_exact_search | The solar transition region |
| title_full | The solar transition region John T. Mariska |
| title_fullStr | The solar transition region John T. Mariska |
| title_full_unstemmed | The solar transition region John T. Mariska |
| title_short | The solar transition region |
| title_sort | the solar transition region |
| topic | Sol larpcal Soleil - Atmosphère ram Soleil - Couronne ram Soleil - Région de transition Spectre solaire ram Astronomical spectroscopy Emission spectroscopy Solar atmosphere Spectra Grenzschicht (DE-588)4022005-9 gnd Chromosphäre (DE-588)4258764-5 gnd |
| topic_facet | Sol Soleil - Atmosphère Soleil - Couronne Soleil - Région de transition Spectre solaire Astronomical spectroscopy Emission spectroscopy Solar atmosphere Spectra Grenzschicht Chromosphäre Sun Corona Spectra Sonne Sonnenkorona |
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