Zobrazeno 1 - 10
of 197
pro vyhledávání: '"J. Jakimiec"'
Autor:
J. Jakimiec, Michal Tomczak
Publikováno v:
Solar Physics. 289:2073-2089
A large arcade flare of 2 March 1993 has been investigated using X-ray observations recorded by the {\sl Yohkoh} and GOES satellites and the {\sl Compton Gamma Ray Observatory}. We analyzed quasi-periodicity of the hard-X-ray (HXR) pulses in the flar
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::db7bcc3fd96853c7ebac23ff568537a9
https://doi.org/10.1007/s11207-013-0463-9
https://doi.org/10.1007/s11207-013-0463-9
Publikováno v:
Advances in Space Research. 35:1739-1742
Soft X-ray solar and stellar flares appear in the coronae of solar-like stars due to abrupt release of energy accumulated in magnetic fields. To build a quantitatively correct model of a flare we need to know how much energy is released in flares of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b1bf452692b0bbe5d295d5e78ff82d65
https://doi.org/10.1016/j.asr.2005.07.051
https://doi.org/10.1016/j.asr.2005.07.051
Autor:
J. Jakimiec
Publikováno v:
Advances in Space Research. 29:1101-1106
Observations indicate that X-ray flare kernels, situated near the tops of flaring loops are turbulent regions where the flare energy is released. It is shown that the kernels can be developed by multiple reconnections in a confined volume. Such a tur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dcd454652e1d06fc5ebe4d08a635af2e
https://doi.org/10.1016/s0273-1177(02)00028-5
https://doi.org/10.1016/s0273-1177(02)00028-5
Publikováno v:
Advances in Space Research. 30:677-682
We investigate an example of flare having the shape of a long, bright filament in soft X-rays (SXR). Another characteristic feature of the flare and of other similar flares is that a few emission kernels, best seen in hard X-rays (HXR), develop along
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3abd440de6eea9b4b731e3f498dab7c0
https://doi.org/10.1016/s0273-1177(02)00362-9
https://doi.org/10.1016/s0273-1177(02)00362-9
Publikováno v:
Advances in Space Research. 30:659-664
We have investigated the heating rate, E H , in flare kernels for a number of M-class flares. We have found that: 1) The heating rate decreases with the altitude of kernel. We explain this as a result of magnetic field decrease with the height in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6603128d88bab65981e84034f73aedb7
https://doi.org/10.1016/s0273-1177(02)00359-9
https://doi.org/10.1016/s0273-1177(02)00359-9
Publikováno v:
Advances in Space Research. 30:665-670
We investigate an example of long-duration arcade flare of 14/15 May 1993. Its spatial structure can be reliably determined from the Yohkoh X-ray images and Kitt Peak magnetograms. Temperatures, densities and heights of the loop-top flare kernels hav
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b7b67d6f7cdd48cb0b667416bee7bc97
https://doi.org/10.1016/s0273-1177(02)00360-5
https://doi.org/10.1016/s0273-1177(02)00360-5
Autor:
J. Jakimiec
Publikováno v:
Advances in Space Research. 30:577-582
One of the basic features of solar flares is the very fast heating of large plasma volumes. A significant fraction of the hot flare plasma is contained in X-ray kernels which are situated near the tops of flaring loops (loop-top flare kernels). In th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b7ae83d3f39aba34caa332e5f7e93bc
https://doi.org/10.1016/s0273-1177(02)00333-2
https://doi.org/10.1016/s0273-1177(02)00333-2
Publikováno v:
Scopus-Elsevier
BASE-Bielefeld Academic Search Engine
BASE-Bielefeld Academic Search Engine
This work is based on hard and soft X-ray observations from the YOHKOH satellite. We investigate an example of an arcade flare, for which the arcade channel is seen in soft X-rays as a long bright filament. We have found that: 1. (1) Energy can effic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6e672d41ac200feb32ef70a9d0e755b4
https://doi.org/10.1016/s0273-1177(97)00906-x
https://doi.org/10.1016/s0273-1177(97)00906-x
Publikováno v:
Advances in Space Research. 13:307-310
Hydrodynamic models of a simple flaring loop, obtained using the Palermo-Harvard code have been used to consider the flare global energy balance. During the heating phase the time variations of the total thermal energy contained in the coronal portio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0420d52214babffb4716e6c934aafde1
https://doi.org/10.1016/0273-1177(93)90496-x
https://doi.org/10.1016/0273-1177(93)90496-x