| Journal: | Brazilian journal of physics |
| Database: | PERIÓDICA |
| System number: | 000389427 |
| ISSN: | 0103-9733 |
| Authors: | Souza, Vitor Moura1 Domingues, Margarete Oliveira1 Mendes, Odim1 Pagamisse, Aylton2 Stenborg, Guillermo Adrian3 |
| Institutions: | 1Instituto Nacional de Pesquisas Espaciais, Sao Jose dos Campos, Sao Paulo. Brasil 2Universidade Estadual Paulista "Julio de Mesquita Filho", Faculdade de Ciencias e Tecnologia, Presidente Prudente, Sao Paulo. Brasil 3George Mason University, College of Science, Fairfax, Virginia. Estados Unidos de América |
| Year: | 2015 |
| Season: | Oct |
| Volumen: | 45 |
| Number: | 5 |
| Pages: | 510-517 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Experimental, aplicado |
| English abstract | The Sun is a natural laboratory for plasma processes. A myriad of instruments aboard satellites and on ground record(ed) the plasma emission in different ranges of the electromagnetic spectrum to help understand such processes. In particular, in the outer part of the solar atmosphere, the solar corona, we can observe a multitude of electrodynamical phenomena. There, the faint corona emission and the associated dynamic plasma structures (e.g., coronal mass ejections—CMEs) recorded in whitelight images can be used as basis for some insight of this physical scenario. In order to characterize the dynamics and morphology of such structures in a better way, it seems crucial that some features of those images should be enhanced. To deal with this need, a new approach using a complex wavelet transform methodology was developed. With the proposed methodology, we can highlight the plasma ejections improving the identification of those structures |
| Disciplines: | Física y astronomía |
| Keyword: | Astronomía, Corona solar, Eyección de masa coronal, Transformada Wavelet |
| Keyword: | Physics and astronomy, Astronomy, Solar corona, Coronal mass ejection, Wavelet transform |
| Full text: | Texto completo (Ver PDF) |
