Rucker / Kurth / Louarn Planetary Radio Emissions VII
1. Auflage 2012
ISBN: 978-3-7001-7246-8
Verlag: Verlag der Österreichischen Akademie der Wissenschaften
Format: PDF
Kopierschutz: 1 - PDF Watermark
Proceedings of the 7th Inernational Workshop on Planetary, Solar and Heliospheric Radio Emissions held at Graz, Austria September 15-17, 2010
E-Book, Englisch, Band 7, 577 Seiten, PDF
Reihe: Planetary Radio Emissions
ISBN: 978-3-7001-7246-8
Verlag: Verlag der Österreichischen Akademie der Wissenschaften
Format: PDF
Kopierschutz: 1 - PDF Watermark
The 7th International Workshop on "Planetary, Solar and Heliospheric Radio Emissions" is the continuation of an established tradition: This PRE VII conference followed previous successful international workshops held at Graz, Austria, in 1984, 1987, 1991, 1996, 2001, and 2005. This 7th workshop in September 2010 offered again the unique opportunity to discuss the observations from Cassini at Saturn and to investigate the measurements by other spacecraft and from the ground of the Jovian, terrestrial and solar radio emissions, also including studies on radiation from exoplanetary sources.
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1;FOREWORD;6
2;SPONSORS;8
3;CONTENTS;10
4;SATURN’S RADIO EMISSIONS AND THEIR RELATION TO MAGNETOSPHERIC DYNAMICS;20
4.1;1 Introduction;20
4.2;2 Solar Wind Influence on Saturn’sMagnetospheric Radio Emis-sions;21
4.3;3 Magnetotail Reconnection and Radio Emissions: Terrestrial Review;22
4.4;4 Magnetotail Reconnection at Saturn and Link to Radio Emis-sions;24
4.5;5 Conclusion;27
4.6;References;28
5;DIRECTION FINDING AND POLARIZATION MEASUREMENTS OF SKR;32
5.1;1 Introduction;32
5.2;2 How the RPWS Instrument Works;33
5.3;3 Some Already Published DF&Pol Results on SKR;34
5.4;4 Improving DF&pol Retrieval Technique;35
5.5;5 Some Improved Results on SKR;45
5.6;6 Summary;51
5.7;References;52
6;AN OVERVIEW OF THE TIME-DEPENDENT ROTATIONAL MODULATION OF SATURNIAN RADIO EMISSIONS;56
7;VARIABILITY OF SOUTHERN AND NORTHERN SKR PERIODICITIES;58
7.1;1 Introduction;58
7.2;2 Radio Observations and Harmonic Analysis;59
7.3;3 Variability of SKR Periodicities;61
7.4;4 Nature of the SKR Diurnal Modulation;65
7.5;5 Conclusions;67
7.6;References;67
8;AN SLS4 LONGITUDE SYSTEM BASED ON A TRACKING FILTER ANALYSIS OF THE ROTATIONAL MODULATION OF SATURN KILOMETRIC RADIATION;70
8.1;1 Introduction;71
8.2;2 SKR Modulation Spectrum;73
8.3;3 Phase and Longitude Analysis;77
8.4;4 The SLS4-N and SLS4-S Longitude Systems;80
8.5;5 Accessing the SLS4 Longitude System;80
8.6;References;82
9;IS A RIKITAKE DYNAMO IN SATURN’S INTERIOR AT THE ORIGIN OF THE VARIABILITY OF THE RADIO ROTATION PERIODS?;84
9.1;1 Introduction;84
9.2;2 Particularity of Saturn’s Magnetic Field;85
9.3;3 Dynamo Effect in Saturn’s Interior;86
9.4;4 Results and Conclusion;89
9.5;References;90
10;SOLAR WIND AND SATURNIAN MOONS SIGNATURES IN THE LONG-PERIODIC MODULATIONS OF SKR;92
11;A CLOSE ENCOUNTER WITH A SATURN KILOMETRIC RADIATION SOURCE REGION;94
11.1;1 Introduction;94
11.2;2 Observations;95
11.3;3 Discussion;99
11.4;References;101
12;SATURN KILOMETRIC RADIATION NEAR A SOURCE CENTER ON DAY 73, 2008;106
12.1;1 Introduction;106
12.2;2 Instrumentation, Observations, and Analysis;107
12.3;3 Summary and Conclusions;112
12.4;References;112
13;PROPERTIES OF SATURN KILOMETRIC RADIATION MEASURED WITHIN ITS SOURCE REGION;116
14;AN OVERVIEW OF SATURN NARROWBAND RADIO EMISSIONS OBSERVED BY CASSINI RPWS;118
14.1;1 Introduction;119
14.2;2 Source Mechanism;119
14.3;3 Polarization and Intensity Measurements;120
14.4;4 Direction Finding Results;123
14.5;5 Z–mode Narrowband Emissions Below fce;124
14.6;6 Rotational Modulation;126
14.7;7 Conclusion;128
14.8;References;129
15;SATURNIAN LOW FREQUENCY DRIFTING RADIO BURSTS: STATISTICAL PROPERTIES AND POLARIZATION;134
15.1;1 Introduction;134
15.2;2 Spectral Characteristics;135
15.3;3 Visibility Depending on Cassini’s Position;137
15.4;4 Polarization;138
15.5;5 Summary and Conclusions;140
15.6;References;141
16;ANALYSIS OF LATITUDINAL DEPENDENCE OF SATURNIAN RADIO EMISSIONS;144
17;OBSERVATIONS OF CHORUS AT SATURN BY CASSINI;146
18;THE LOCATION OF THE HIGH-DENSITY BOUNDARY IN SATURN’S INNER MAGNETOSPHERE;148
18.1;References;150
19;DENSITY AND TEMPERATURE OF THE ELECTRON CORE IN THE INNER MAGNETOSPHERE OF SATURN FROM CASSINI/RPWS ANTENNAS;152
20;OVERVIEW OF SATURN LIGHTNING OBSERVATIONS;154
20.1;1 Radio Observations of SEDs by Cassini RPWS;154
20.2;2 Ground–based Radio Observations of SEDs;155
20.3;3 Direct Optical Observations of Saturn Lightning Flashes;156
20.4;4 Optical Observations of Storm Clouds;156
20.5;5 Other Observations by Cassini VIMS and CIRS;160
20.6;6 Comparison of lightning on Saturn, Jupiter, and Earth;161
20.7;7 Summary and Conclusions;162
20.8;References;162
21;GROUND-BASED STUDY OF SATURN LIGHTNING;164
21.1;1 Introduction;164
21.2;2 The Complementarity of Ground-based and Space-based Ob-servations;165
21.3;3 Saturn Observations with UTR-2;166
21.4;4 Saturn Observations with WSRT;168
21.5;5 First Saturn Observations with LOFAR;169
21.6;6 Planned Observations;171
21.7;7 Conclusion;171
21.8;References;172
22;ELECTRIC FIELD TRANSIENTS OBSERVED BY THE HUYGENS PROBE IN THE ATMOSPHERE OF TITAN: ATMOSPHERIC ELECTRICITY PHENOMENA OR ARTEFACTS?;174
23;NEW TYPE OF PERIODIC BURSTS OF NON-IO JOVIAN DECAMETRIC RADIO EMISSION;176
23.1;1 Introduction;176
23.2;2 Periodic non-Io DAM Radio Bursts and its Properties;177
23.3;3 Discussion;183
23.4;4 Summary;183
23.5;References;184
24;JUPITER’S DECAMETRIC AND HECTOMETRIC RADIO EMISSIONS OBSERVED BY CASSINI RPWS AND VOYAGER PRA;186
24.1;1 Introduction;186
24.2;2 Observations and Analysis;187
24.3;3 Discussion;189
24.4;4 Summary;192
24.5;References;193
25;IO-JUPITER ELECTRODYNAMIC INTERACTION, ELECTRON ACCELERATION AND RADIO BURSTS GENERATION;196
26;A MODEL OF JUPITER’S DECAMETRIC RADIO EMISSIONS AS A SEARCHLIGHT BEAM;198
26.1;1 Introduction;198
26.2;2 TheDE Effect;199
26.3;3 Model of a Searchlight Beam;200
26.4;4 Delta Zone Effect;203
26.5;5 Conclusion;204
26.6;References;205
27;JOVIAN DAM “ARCS” AND AURORAL CONTEXT;206
28;ON THE ORIGIN OF IO’S ULTRAVIOLET AURORA;208
28.1;1 Introduction;208
28.2;2 Heating Mechanism of Ionospheric Electrons and Generation of UV Emission;210
28.3;3 Discussion;213
28.4;References;214
29;BEAMING CONE OF IO-CONTROLLED JOVIAN DECAMETER RADIO EMISSION AND EXISTENCE OF LOCALIZED ACTIVE LONGITUDE;216
29.1;1 Introduction;216
29.2;2 Polar Distribution of the Source Regions;218
29.3;3 Polar Distribution in Elliptic Coordinates;219
29.4;4 Conclusions;222
29.5;References;223
30;ANALYSIS OF THE S-COMPONENTS FEATURES OF THE JOVIAN DAM EMISSION OBTAINED FOR THE IO-DEPENDENT SOURCES;224
30.1;References;227
31;CONSIDERATION OF THE JOVIAN S-BURSTS AND NB-EMISSION BASED ON THE PARAMETRIC MODEL;228
31.1;1 Introduction;228
31.2;2 Propagation of the Extraordinary Electromagnetic Wave in a Magnetized Plasma with Non-stationary Disturbances of the Magnetic Field;230
31.3;3 Conclusion;233
31.4;References;234
32;S/NB-EVENTS OF JOVIAN DECAMETRIC EMISSION;238
32.1;1 Introduction;238
32.2;2 Motion of an Emitter;239
32.3;3 Dispersion Delay;241
32.4;4 Shadow Effect;242
32.5;5 Synthetic and Real Spectra;242
32.6;6 Conclusions;244
32.7;References;245
33;JOVIAN RADIO EMISSIONS MODELING AND THEIR FUTURE INVESTIGATION WITH EJSM;246
34;EXPLORATION OF JUPITER’S POLAR MAGNETOSPHERE AND RADIO EMISSIONS WITH THE JUNO MISSION;248
35;VARIABILITY OF JUPITER’S SYNCHROTRON EMISSION IN MID-2009;250
35.1;1 Introduction;250
35.2;2 Observation and Data Reduction;251
35.3;3 Brightness Distribution at 6 cm;252
35.4;4 Response to a Comet-like Impact;254
35.5;5 Conclusion;256
35.6;References;257
36;RX AND Z-MODE GROWTH RATES AND PROPAGATION AT CAVITY BOUNDARIES;260
36.1;1 Introduction;260
36.2;2 Wave Modes in a Cold Magnetized Plasma;261
36.3;3 Cluster Observations of RX and Z ModeWaves in the Earth’s Auroral Acceleration Region;263
36.4;References;270
37;WAVEGUIDE MODES IN THE AKR SOURCE;272
37.1;1 Introduction;272
37.2;2 Measurements and the Analysis;273
37.3;3 Discussion;276
37.4;4 Conclusion;277
37.5;References;278
38;AKR SOURCES POSITIONS - INTERBALL-2 VS CLUSTER OBSERVATIONS;280
38.1;1 Introduction;280
38.2;2 Tangent Plane Beaming Model;281
38.3;3 Interball-2 Observations - Direction Finding;281
38.4;4 AKR Visibility Maps and Results;282
38.5;5 Conclusions;284
38.6;References;285
39;CAN THE RELATIVISTIC MASER MECHANISM CAUSE THE STRONG EMISSIONS REGISTERED BY CLUSTER AND DEMETER SATELLITES IN THE POLAR CUSP?;288
40;MEDIUM FREQUENCY BURST EMISSIONS: A TERRESTRIAL ANALOG TO SOLAR TYPE III BURSTS?;290
40.1;1 Introduction;290
40.2;2 Review of Recent Observational Work;291
40.3;3 Review of Recent Theoretical Work;294
40.4;4 Conclusions;298
40.5;References;299
41;AKR DIURNAL, SEMI-DIURNAL AND SHORTER TERM MODULATIONS DISENTANGLED BY CASSINI/RPWS OBSERVATIONS;302
42;GROUND-LEVEL DETECTION OF AURORAL KILOMETRIC RADIATION;304
43;THE SEARCH FOR EXOPLANETARY RADIO EMISSIONS;306
43.1;1 Historical Landmarks;306
43.2;2 Theoretical Predictions;307
43.3;3 Early Low-frequency Observations;308
43.4;4 Tentative Optical Detection and More Theoretical Work;310
43.5;5 Recent Low-frequency Observations;312
43.6;6 Method and Motivations;313
43.7;7 Perspectives;314
43.8;References;316
44;EXOPLANET MAGNETIC FIELD ESTIMATION VIA ENERGETIC NEUTRAL ATOMS (ENAS) AND HYDROGEN CLOUD OBSERVATIONS AND MODELLING;322
44.1;1 Introduction;323
44.2;2 Expanding Thermospheres of “Hot Jupiters”;324
44.3;3 Stellar Wind Interaction with HD 209458b and Production of Hydrogen and ENA-Clouds;324
44.4;4 Conclusion;328
44.5;References;329
45;RADIO EMISSION FROM MAGNETIC EXOPLANETS: PROGRESS REPORT ON GMRT OBSERVATIONS AND RESULTS;332
46;ON THE POSSIBILITY OF RADIO EMISSION OF PLANETS AROUND PULSARS;334
46.1;1 Exoplanets Around Pulsars;334
46.2;2 Alfv´en Wings;336
46.3;3 Radio Emissions from the Alfv´en Wings;338
46.4;4 Characteristics of the Radio Emissions from a Planet Around a Pulsar;340
46.5;5 Conclusion;340
46.6;References;342
47;CORONAL MASS EJECTIONS AND SOLAR RADIO EMISSIONS;344
47.1;1 Introduction;344
47.2;2 Type III Bursts;346
47.3;3 TypeIIBursts;349
47.4;4 TypeIVBursts;355
47.5;5 Conclusions;357
47.6;References;357
48;DECAMETER RADIO EMISSION OF THE SUN: RECENT OBSERVATIONS;362
48.1;1 Introduction;362
48.2;2 Type III-like Bursts;363
48.3;3 Powerful Type III Bursts;364
48.4;4 Decameter Type IIIb Bursts;364
48.5;5 Inverted Decameter U- and J-bursts;365
48.6;6 Dog-leg Type III Bursts;366
48.7;7 TypeIVBursts;366
48.8;8 Decameter Spikes;367
48.9;9 S-bursts;367
48.10;10 Conclusion;367
48.11;References;369
49;PROPERTIES OF DECAMETER SPIKES;370
49.1;1 Introduction;370
49.2;2 Observations;371
49.3;3 Discussion;375
49.4;4 Conclusion;376
49.5;References;376
50;UNUSUAL TYPE III BURSTS AT THE DECAMETRE WAVELENGTHS;378
50.1;1 Introduction;378
50.2;2 Instruments;380
50.3;3 Observations;380
50.4;4 Discussion;383
50.5;5 Conclusion;384
50.6;References;384
51;PROPERTIES OF POWERFUL SOLAR TYPE III BURSTS IN THE FREQUENCY RANGE OF 10-30 MHZ;386
51.1;1 Introduction;386
51.2;2 Observations;387
51.3;3 Conclusion;390
51.4;References;391
52;PROPAGATION OF ENERGETIC ELECTRONS FROM THE CORONA INTO INTERPLANETARY SPACE AND TYPE III RADIO EMISSION;392
52.1;1 Introduction;392
52.2;2 Drift Rates and Radial Propagation Velocity;394
52.3;3 Density Model for the Interplanetary Space;395
52.4;4 Results;397
52.5;5 Conclusion;398
52.6;References;398
53;LOCAL TIME OCCURRENCE OF SOLAR TYPE III BURSTS AT SATURN’S ORBIT;400
53.1;1 Introduction;400
53.2;2 Type III Burst Occurrence;401
53.3;3 Discussion and Conclusion;403
53.4;References;405
54;AN INFLUENCE OF ANTENNA TILT ANGLE TO THE RPW/SOLAR ORBITER DIRECTION FINDING;408
54.1;References;409
55;NUMERICAL SIMULATION OF THE PROPAGATION OF TYPE III RADIO EMISSION;410
55.1;1 Introduction;410
55.2;2 The Model;411
55.3;3 Results;414
55.4;4 Conclusion;416
55.5;References;416
56;LOCALIZED LANGMUIR EIGENMODES AND SOLAR RADIO BURSTS;418
56.1;1 Introduction;418
56.2;2 Langmuir-eigenmode Modulation;419
56.3;3 Langmuir-eigenmode Radiation;421
56.4;4 Interactions with Density Turbulence;423
56.5;5 Conclusions;424
56.6;References;425
57;COMPLEX ZEBRA PATTERNS IN SOLAR RADIO EMISSION AND GENERATION MECHANISMS;426
57.1;1 Introduction;426
57.2;2 Generation Mechanisms;427
57.3;3 NewObservation;428
57.4;4 OtherMechanisms;430
57.5;5 The New Alternative Mechanism of the ZP due to Develop-ment of Explosive Instability in the System Beam–plasma;431
57.6;6 Conclusion;433
57.7;References;433
58;SOLAR RADIO EMISSIONS IN VIEW OF THE SOLAR ORBITER MISSION;436
59;MILLIMETER RADIO ASTRONOMY AND THE SOLAR CONVECTION ZONE;438
59.1;1 Introduction;438
59.2;2 Turbulence in Large-scale Pattern of Active Regions;439
59.3;3 Gigantic Convection Cells and Preferred Scales;441
59.4;4 What Can be Seen at Millimeter Wavelengths?;443
59.5;5 Conclusions;444
59.6;References;445
60;UNUSUAL SPECTRA OF POLARISED RADIO EMISSION OF ACTIVE REGIONS ON THE SUN;446
60.1;1 Introduction;446
60.2;2 Observations;446
60.3;3 Model;447
60.4;4 Model Calculations;448
60.5;5 Estimations of Physical Conditions in a Loop;450
60.6;6 Conclusions;451
60.7;References;451
61;LONG-PERIODIC TRANSVERSE OSCILLATIONS OF CORONAL LOOPS AND MODULATIONS OF SOLAR MICROWAVE RADIATION;454
61.1;1 Introduction;454
61.2;2 Diagnostics of Oscillating Coronal Loops via VLF Modula-tions of mm-Radiation;456
61.3;3 Magnetic Field Variations, Estimated from VLF Spectra;460
61.4;4 Conclusions;460
61.5;References;461
62;PLASMA HEATING BY THE PARAMETRIC EXCITATION OF ACOUSTIC WAVES IN CORONAL MAGNETIC LOOPS;464
62.1;1 Introduction;464
62.2;2 Parametric Resonance;465
62.3;3 Energy of the Acoustic Waves;466
62.4;4 Dissipation of the Acoustic Waves or the Heating Rate;468
62.5;5 Heating of Coronal Magnetic Loops;469
62.6;6 Discussion;470
62.7;7 Conclusions;470
62.8;References;471
63;CORONAL MAGNETIC FIELD STRUCTURE IN SOLAR ACTIVE REGIONS;474
63.1;1 Introduction;474
63.2;2 Method of the Magnetic Field Determination;475
63.3;3 Calculation Results;476
63.4;4 Discussion and Conclusions;478
63.5;References;481
64;MAGNETOHYDRODYNAMIC SHOCKS AND SOLITONS IN THE SOLAR ATMOSPHERE: RECENT CHALLENGES IN OBSERVATIONS AND THEORY;484
64.1;1 Introduction;484
64.2;2 First Observation of Slow Sausage Soliton in the Solar Atmo-sphere;485
64.3;3 Shock Waves as Important Part of Spicule Formation Mech-anism in the Solar Atmosphere;485
64.4;4 Results and Conclusions;488
64.5;References;489
65;STEREO OBSERVATIONS OF LARGE-SCALE WAVES IN THE SOLAR CORONA;490
66;STUDY OF THE KINEMATICS, DRIVER OF THE GLOBAL MORETON WAVE OBSERVED ON 28-10-2003;492
67;IMPLICATIONS OF ANTENNA SYSTEM CALIBRATION ON SPACECRAFT DESIGN AND RADIO DATA ANALYSIS;494
67.1;1 The Concept of Effective Length Vector of an Antenna;494
67.2;2 Antenna System Calibration Methods;495
67.3;3 Numerical Computer Simulation of Antenna System Calibra-tion;497
67.4;4 Conclusions;500
67.5;References;501
68;NUMERICAL SIMULATIONS OF THE SOLAR ORBITER ANTENNA SYSTEM RPW ANT;506
68.1;1 Introduction;506
68.2;2 Spacecraft Modeling;508
68.3;3 Numerical Simulations;509
68.4;4 Results;509
68.5;5 Conclusions;512
68.6;References;512
69;ANTENNA DESIGN AND DISTRIBUTION FOR A LOFAR SUPER STATION IN NANC¸AY;514
69.1;1 Introduction;514
69.2;2 The LOFAR Super Station;515
69.3;3 Three Key Design Studies for the LSS;517
69.4;4 Conclusion;521
69.5;References;521
70;PLANETARY AND EXOPLANETARY STUDIES WITH THE GIANT RADIO TELESCOPE LOFAR;524
71;SOLAR OBSERVATIONS WITH LOFAR;526
71.1;1 Introduction;526
71.2;2 Solar Radio Emission;528
71.3;3 Solar Observation Modes with LOFAR;530
71.4;4 Concluding Remarks;530
71.5;References;531
72;COMBINED RADIO OBSERVATIONS WITH LOFAR AND THE GIANT UKRAINIAN RADIO TELESCOPE;532
72.1;1 Introduction;532
72.2;2 LOFAR;534
72.3;3 GURT – The Giant Ukrainian Radio Telescope;535
72.4;4 Joint LOFAR and GURT Observations;536
72.5;5 Science;537
72.6;6 DataFormats;538
72.7;7 Conclusion;538
72.8;References;538
73;NEW ANTENNAS AND METHODS FOR THE LOW FREQUENCY STELLAR AND PLANETARY RADIO ASTRONOMY;540
73.1;1 Introduction;540
73.2;2 The Tasks of the Ground-based Low Frequency Radio As-tronomy (10-100 MHz) in the Stellar and Planetary Science;541
73.3;3 Existing Radio Telescopes and Instrumentation;541
73.4;4 Some New Examples of the Sun, Stellar, and Planetary Ob-servations;543
73.5;5 Giant Ukrainian Radio Telescope (GURT) Concept;547
73.6;6 Conclusion;548
73.7;References;549
74;TESTS OF AN ACTIVE, BROAD-BAND ANTENNA ARRAY;552
74.1;1 Introduction;552
74.2;2 The Active Dipole for the Low-frequency Array;553
74.3;3 Antenna Array;555
74.4;4 Conclusion;557
74.5;References;558
75;OBSERVING SOLAR RADIO BURSTS FROM THE LUNAR SURFACE;560
75.1;1 Introduction;560
75.2;2 ScientificGoals;561
75.3;3 Implementation;564
75.4;4 Conclusion;568
75.5;References;568
76;BROADBAND OBSERVATIONS OF RADIO EMISSION OF FLARE STARS;570
76.1;1 Introduction;570
76.2;2 Instrumentation;571
76.3;3 Observations and data processing;572
76.4;4 Conclusions;574
76.5;References;574
77;ON KINETIC APPROACH TO MODELING OF SOURCES OF ELECTROMAGNETIC RADIATION LOCATED IN PLANET/STELLAR ELECTROMAGNETIC STRUCTURES;576
78;ON DUST KINETIC ALFV ´ EN WAVES AND STREAMING INSTABILITY IN A LORENTZIAN MAGNETOPLASMA;578
78.1;1 Introduction;578
78.2;2 BasicEquations;579
78.3;3 Lorentzian Number Density and Current Density Perturba-tions;580
78.4;4 Dispersion Relation;582
78.5;5 Discussions;584
78.6;6 References;586
79;IMPROVED RADIO STUDIES OF SPACE BY USING NEW EM DEGREES OF FREEDOM;590
80;101 THINGS THAT YOU MIGHT HAVE WONDERED ABOUT SPACE PLASMA WAVE RESEARCH BUT WERE AFRAID TO ASK!;592
81;Email–List of Participants/Authors:;593
