Neighs and Whispers

Zlotnik, A.

doi:10.7313/upo9781908062826

Cited by 3 publications

(4 citation statements)

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“…Of course, since the theories of the BW model, WW model, and DPR model are far from perfect (Zlotnik 2009), many physical details are still not clear. We do not know exactly which model is the best one to explain the formation of a given ZP event.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

“…The nature of ZP structures has been a widely discussed subject for more than 40 yr. The historical development of observations and various theoretical models is assembled in the reviews of Chernov (2006), Zlotnik (2009), and so on (Rosenberg 1972;Kuijpers 1975;Zheleznyakov & Zlotnik 1975;Chernov 1976Chernov , 1990LaBelle et al 2003;Kuznetsov 2005;Ledenev et al 2006;Tan 2010;Karlický 2013). These models include the following.…”

Section: Introductionmentioning

confidence: 99%

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Statistics and Classification of the Microwave Zebra Patterns Associated With Solar Flares

Tan

Zhang

Mészárosová

et al. 2013

ApJ

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The microwave zebra pattern (ZP) is the most interesting, intriguing, and complex spectral structure frequently observed in solar flares. A comprehensive statistical study will certainly help us to understand the formation mechanism, which is not exactly clear now. This work presents a comprehensive statistical analysis of a big sample with 202 ZP events collected from observations at the Chinese Solar Broadband Radio Spectrometer at Huairou and the Ondŕejov Radiospectrograph in the Czech Republic at frequencies of 1.00-7.60 GHz from 2000 to 2013. After investigating the parameter properties of ZPs, such as the occurrence in flare phase, frequency range, polarization degree, duration, etc., we find that the variation of zebra stripe frequency separation with respect to frequency is the best indicator for a physical classification of ZPs. Microwave ZPs can be classified into three types: equidistant ZPs, variable-distant ZPs, and growing-distant ZPs, possibly corresponding to mechanisms of the Bernstein wave model, whistler wave model, and double plasma resonance model, respectively. This statistical classification may help us to clarify the controversies between the existing various theoretical models and understand the physical processes in the source regions.

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Section: Conclusion and Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Statistics and Classification of the Microwave Zebra Patterns Associated With Solar Flares

Tan

Zhang

Mészárosová

et al. 2013

ApJ

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show abstract

“…Despite the sophistication of ZP generation theories, many problems remain to be solved in this area (Chernov 2006;Zlotnik 2009). For instance, the intermediate emission polarization is an important topic of discussion.…”

mentioning

confidence: 99%

Polarization Characteristics of Zebra Patterns in Type IV Solar Radio Bursts

Kaneda

Misawa

Iwai

et al. 2017

ApJ

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The polarization characteristics of zebra patterns (ZPs) in type IV solar bursts were studied. We analyzed 21 ZP events observed by the Assembly of Metric-band Aperture Telescope and Real-time Analysis System between 2010 and 2015 and identified the following characteristics: a degree of circular polarization (DCP) in the range of 0%-70%, a temporal delay of 0-70 ms between the two circularly polarized components (i.e., the right-and left-handed components), and dominant ordinary-mode emission in about 81% of the events. For most events, the relation between the dominant and delayed components could be interpreted in the framework of fundamental plasma emission and depolarization during propagation, though the values of DCP and delay were distributed across wide ranges. Furthermore, it was found that the DCP and delay were positively correlated (rank correlation coefficient R = 0.62). As a possible interpretation of this relationship, we considered a model based on depolarization due to reflections at sharp density boundaries assuming fundamental plasma emission. The model calculations of depolarization including multiple reflections and group delay during propagation in the inhomogeneous corona showed that the DCP and delay decreased as the number of reflections increased, which is consistent with the observational results. The dispersive polarization characteristics could be explained by the different numbers of reflections causing depolarization.

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“…W świetle dotychczasowych ustaleń w niewielkim szlacheckim Przecławiu sytuacja rzemiosła przedstawiała się najmniej korzystnie. Tamtejsze księgi notują wprawdzie rzemieślników różnorodnych specjalności, w tym tak ekskluzywnej jak złotnictwo, ale długo nie wspominają żadnego cechu 49 . Informacje o nich pochodzą dopiero z drugiej połowy XVII stulecia.…”

Section: Rzemiosłounclassified

Demograficzny i gospodarczy potencjał małych miast południowej Polski od końca XVI do początku XIX wieku

Miodunka

2018

RDSG

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Zarys treści: Artykuł prezentuje nowe spojrzenie na wybrane aspekty funkcjonowania małych miast w przedrozbiorowej Polsce w kontekście domniemanych procesów agraryzacji. Na przykładzie południowej Małopolski (od 1772 r. zachodniej części Galicji) analizuje dotychczas wykorzystywane, ale i nowe źró-dła, np. księgi metrykalne, umożliwiające oszacowanie wielkości zaludnienia małych miast. Szeroka gama źródeł, głównie lokalnej proweniencji, została wykorzystana do ustalenia wagi podstawowych typów aktywności gospodarczej podejmowanej przez mieszczan, czyli rolnictwa, rzemiosła i handlu. Artykuł zamykają rozważania na temat roli wieku XIX dla sytuacji demografi czno--gospodarczej małych miast południowej Małopolski. The content outline:The article captures some aspects of functioning of small towns in the pre-partitioned Poland in the context of alleged processes of agrarisation of towns. On the example of southern Poland (from 1772 on, the western part of Galicia) it analyses historical sources, both already used and new ones, such as parish registers which make it possible to estimate the population of small towns. A broad array of sources, mainly of local provenance, was used to establish the value of basic types of economic activities undertaken by townsmen, i.e. farming, crafting, and trading. The article closes with the refl ections on the role played by the nineteenth century in the demographic and economic situation of towns in southern Lesser Poland (Małopolska).

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Neighs and Whispers

Cited by 3 publications

References 0 publications

Statistics and Classification of the Microwave Zebra Patterns Associated With Solar Flares

Statistics and Classification of the Microwave Zebra Patterns Associated With Solar Flares

Polarization Characteristics of Zebra Patterns in Type IV Solar Radio Bursts

Demograficzny i gospodarczy potencjał małych miast południowej Polski od końca XVI do początku XIX wieku

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