Results 161 to 170 of about 41,536 (207)
Magnetic star-planet interaction in the young exoplanet system DS Tucanae Ab
Santos Ld +13 more
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Flying through an Eruption-associated Magnetic Reconnection Current Sheet in the Solar Corona
Patel R +16 more
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The Rotation of The Fe XIV Solar Corona During the Recent Solar Activity Minimum
Space Science Reviews, 1999We analyze data observed by the LASCO C1 coronagraph on board the SOHO spacecraft during the solar minimum activity from April 1996 to March 1997. Using the phase dispersion technique, we investigate the periodicity and recurrence of Fe XIV emission structures with heliospheric latitude and distance above the Sun’s surface with high spatial resolution.
Inhester, B. +4 more
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An Active Region Streamer of the Solar Corona
Publications of the Astronomical Society of Japan, 1967Abstract A photometric investigation is reported for a conspicuous active region streamer which originated at heliographic P. A. 280 ° of the solar corona observed at the 1962 New Guinea eclipse. The following results are derived: (1) The electron density along the axis of streamer is obtained out to 3.5 R⊙.
Kuniji Saito, Naoaki Owaki
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Scientific American, 1983
In the past decade what is known about the corona has been vastly enlarged by instruments on the ground and on spacecraft, manned and unmanned. The corona is observed to be in a continuous state of flux, punctuated by periodic explosive outbursts. From spectroscopic observations the temperature of the corona is estimated to be between one and two ...
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In the past decade what is known about the corona has been vastly enlarged by instruments on the ground and on spacecraft, manned and unmanned. The corona is observed to be in a continuous state of flux, punctuated by periodic explosive outbursts. From spectroscopic observations the temperature of the corona is estimated to be between one and two ...
openaire +1 more source
Publications of the Astronomical Society of Australia, 1981
When I began my studies of solar radio astronomy, Dr J. L. Pawsey, who then led the radio astronomy group in the Division of Radiophysics, CSIRO, explained to me that the internal structure of the Sun was ‘well understood’, thanks to a lack of conflicting observational data, but that for the observable layers of the Sun, the photosphere, chromosphere ...
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When I began my studies of solar radio astronomy, Dr J. L. Pawsey, who then led the radio astronomy group in the Division of Radiophysics, CSIRO, explained to me that the internal structure of the Sun was ‘well understood’, thanks to a lack of conflicting observational data, but that for the observable layers of the Sun, the photosphere, chromosphere ...
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Solar Physics, 1996
This review puts together what we have learned about coronal structures and phenomenology to synthesize a physical picture of the corona as a voluminous, thermally and electrically highly-conducting atmosphere responding dynamically to the injection of magnetic flux from below.
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This review puts together what we have learned about coronal structures and phenomenology to synthesize a physical picture of the corona as a voluminous, thermally and electrically highly-conducting atmosphere responding dynamically to the injection of magnetic flux from below.
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Geomagnetism and Aeronomy, 2006
In 2001–2003, 45 flares of hard X ray (HXR) and gamma ray radiation, identified with a particular active region (AR) that produced each event, were recorded during the experiments onboard the Russian Solar Observatory CORONAS-F using the SONG (solar neutrons and gamma ray quanta) instrument.
B. V. Agalakov +8 more
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In 2001–2003, 45 flares of hard X ray (HXR) and gamma ray radiation, identified with a particular active region (AR) that produced each event, were recorded during the experiments onboard the Russian Solar Observatory CORONAS-F using the SONG (solar neutrons and gamma ray quanta) instrument.
B. V. Agalakov +8 more
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Interacting Active Regions in the Solar Corona
The Astrophysical Journal, 1996We report an episode from the Yohkoh soft X-ray observations during which antiparallel coronal magnetic fields from two separate active regions, located in opposite hemispheres, reconnect and form new transequatorial coronal loops. Strong evidence for magnetic reconnection consists of the following: (1) Transequatorial connections not previously ...
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Green corona emission, calcium plage activity and solar sector magnetism
Planetary and Space Science, 1976Abstract The relationship between coronal green line emission and solar sector magnetism has been studied statistically for the years 1965–1969. This period includes the rising portion and the maximum phase of solar cycle no. 20. In the years around solar maximum the results suggest the existence of longitudinal magnetic arcades at the solar sector ...
Arild Gulbrandsen +2 more
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