Zobrazeno 1 - 10
of 31
pro vyhledávání: '"M. A. Dodero"'
Publikováno v:
Astronomy & Astrophysics. 476:1341-1346
The purpose of the paper is to measure the degree of temperature anisotropy of the oxygen ions in the outer corona. The ratio of the Doppler dimmed OVI 1037-1032 line intensity as a function of the velocity of the fast solar wind, computed for typica
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02f78ffb1697b181f7b67497f4b44039
https://doi.org/10.1051/0004-6361:20077660
https://doi.org/10.1051/0004-6361:20077660
Publikováno v:
Astronomy & Astrophysics. 472:299-307
The purpose of the paper is to extend the measurement of the kinetic temperature and outflow velocity of the oxygen ions in the outer corona above polar holes out to 5 $R_\odot$. An analytical model of the solar corona at the minimum of activity has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c01530225857c7def60847d385893136
https://doi.org/10.1051/0004-6361:20077083
https://doi.org/10.1051/0004-6361:20077083
Publikováno v:
Astronomy & Astrophysics. 435:699-711
This study examines the physical conditions of the outer solar corona in order to identify the regions where the slow solar wind is accelerated and to investigate the latitudinal transition from slow to fast wind during the minimum of the solar cycle
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::77727ef11ea6453fe91649c3bfdf63d8
https://doi.org/10.1051/0004-6361:20047126
https://doi.org/10.1051/0004-6361:20047126
Publikováno v:
Scopus-Elsevier
A new spectroscopic method, aimed to derive the plasma electron density and outflow velocity in expanding solar coronal regions, is discussed in this paper. The method is based on the analysis of a pair of coronal lines emitted via collisional and ra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::80ac4217fc1509887b2bab309d647d7e
https://doi.org/10.1051/0004-6361:20031650
https://doi.org/10.1051/0004-6361:20031650
Publikováno v:
Solar Physics. 197:115-134
We present a study of the outflow velocity of the fast wind in the northern polar coronal hole observed on 21 May 1996, during the minimum of solar activity, in the frame of a joint observing program of the SOHO (Solar Heliospheric Observatory) missi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7408dc78c82d49e691320ec8f8d27be8
https://doi.org/10.1023/a:1026568912809
https://doi.org/10.1023/a:1026568912809
Publikováno v:
Solar Physics. 183:77-90
Doppler dimming of the O vi resonance lines (λ1032 A, λ1037 A) in an expanding corona is calculated including the pumping effect on the O vi λ1037.61 A of both C ii lines at λ1036.34 A and λ1037.02 A, and the effect of the width of the absorptio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8804231ef1e037446ed93a59a302da40
https://doi.org/10.1023/a:1005007429583
https://doi.org/10.1023/a:1005007429583
Publikováno v:
Advances in Space Research. 17:47-50
The analysis of the profile and intensity of the soft X-ray lines formed in the wavelength range from 1.8 A to 20 A, observed with the Soft X-ray Polychromator of the Solar Maximum Mission (SMM), shows that solar flare plasmas are characterized by no
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53082edcbfcec6ba3e88ac4d2b4a105c
https://doi.org/10.1016/0273-1177(95)00539-q
https://doi.org/10.1016/0273-1177(95)00539-q
Publikováno v:
Il Nuovo Cimento D. 17:1149-1153
We compute the intensity of the emission in the O VI, Mg X, Si XII, Fe XIII, Fe XVI transitions and the profiles of these spectral lines for a plasma flowing out of reconnecting current sheets that originate in the active region corona either during
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1edfe8acc5b959065484d72a6cde017
https://doi.org/10.1007/bf02454129
https://doi.org/10.1007/bf02454129
Publikováno v:
Il Nuovo Cimento D. 17:999-1006
The development of multilayer optics has profound implications for soft-X-ray/UV astronomy, since it allows to extend the use of normal-incidence telescopes to cover the XUV region where lines are formed at greatly different temperatures (105–107 K
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bec144631c0cc20cb90afb858d1ffb29
https://doi.org/10.1007/bf02456788
https://doi.org/10.1007/bf02456788
Publikováno v:
International Astronomical Union Colloquium. 115:126-131
Compact solar flares are triggered by sudden energy release in magnetically confined plasma. This class of flares is well suited to be studied with numerical hydrodynamic models. In particular, one can compare the evolution of observed and synthetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b3ac6b4bb46cc97d89cb8c7e8c9587c2
https://doi.org/10.1017/s0252921100012227
https://doi.org/10.1017/s0252921100012227