Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Oscar T. Matsuura"'
Autor:
Oscar T. Matsuura
Publikováno v:
Cadernos de Astronomia. 1:52-82
Considere ao pé-da-letra a expressão "imagem de um buraco negro", atribuindo a cada palavra o significado usual. Verá que ela não faz muito sentido e, se faz, soa estranha. É que a expressão é científica. Cada palavra adquiriu significado num
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7e50b6dce6ba169d6033b5f716c1233
https://doi.org/10.47083/cad.astro.v1n1.31781
https://doi.org/10.47083/cad.astro.v1n1.31781
Autor:
Oscar T. Matsuura
Biografia de Jorge Marcgrave, astrônomo e geógrafo alemão que veio ao Recife com a comitiva de Maurício de Nassau, no século 17, e foi responsável por iniciar o primeiro estudo sistemático de Astronomia no Brasil, a partir do observatório con
Autor:
Ileana Chinnici, Brenda G. Corbin, Suzanne V. Débarbat, Daniel W. E. Green, Lee Jung-Bok, Oscar T. Matsuura, Wayne Orchiston, Adam Perkins, Irakli A. Simonia
Publikováno v:
Proceedings of the International Astronomical Union. 4:420-422
The Working Group Archives deals with all aspects of the identification and preservation of astronomical archives. In 2009 the IAU will celebrate its 90th anniversary, and on this occasion the WG is taking action toward preserving the archival materi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2653468c3115c18314ffddb67b744f54
https://doi.org/10.1017/s1743921308025982
https://doi.org/10.1017/s1743921308025982
Autor:
Adam Perkins, Ileana Chinnici, Daniel W. E. Green, Oscar T. Matsuura, Brenda Corbin, Tsuko Nakamura, Irakli Simonia, Suzanne Débarbat
Publikováno v:
Proceedings of the International Astronomical Union. 7:398-399
In the triennium 2006–2009, the WG Archives promoted an action of recognition of the archival documents concerning the foundation of IAU. The pretext was given by the fact that the year 2009 was the 90th anniversary of the establishment of IAU and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a75cc99dfbd241aa6b5aa852ed21d12
https://doi.org/10.1017/s1743921312003134
https://doi.org/10.1017/s1743921312003134
Autor:
Oscar T. Matsuura, M. F. F. Nave
Publikováno v:
Solar Physics. 16:417-422
A statistical analysis on 220 impulsive microwave bursts showed a marked preference to occur in sunspots of type D, E and F (after Zurich classification). Assuming a shock mechanism for accelerating electrons, this tendency seems to be related to the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71b9890b54fa97dbd6f3064dd6237d38
https://doi.org/10.1007/bf00162484
https://doi.org/10.1007/bf00162484
Autor:
Pierre Kaufmann, Oscar T. Matsuura
Publikováno v:
Icarus. 8:193-197
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::78e9a26a2be179a626c551d86bdc5ea0
https://doi.org/10.1016/0019-1035(68)90072-9
https://doi.org/10.1016/0019-1035(68)90072-9
Autor:
Oscar T. Matsuura
Publikováno v:
Solar Physics. 9:173-182
A magnetohydrodynamic (MHD) approach is presented that appears to be comprehensive for the interpretation of the recently discovered microwave solar events, in which only the degree of circular polarization changes, without any increase in the output
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a99df37ac1ad0a162a79da977527b59a
https://doi.org/10.1007/bf00145738
https://doi.org/10.1007/bf00145738
Publikováno v:
Solar Physics. 17:402-407
A plasmoid may be ejected during a flare and condensed by a radiative instability. The spectral shape of the mean fluxes of Simple 3 (or long-enduring) solar events is interpreted in terms of a thermal emission from this transient condensation in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::575bea14e96569e4ac463ad02ef16c7c
https://doi.org/10.1007/bf00150043
https://doi.org/10.1007/bf00150043
Publikováno v:
Solar Physics. 14:190-195
The evolution with time of circular polarization π(t) from solar bursts at 7 GHz presents, in the majority of cases, a polarization degree peak before the maximum flux time. The subsequent evolution of π(t) is continuous and usually increasing. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::293101c7470dcefbcf998bc9ee7097f2
https://doi.org/10.1007/bf00240177
https://doi.org/10.1007/bf00240177