搜索结果: 1-10 共查到“太阳与太阳系 active”相关记录10条 . 查询时间(0.078 秒)
Starspots, spin-orbit misalignment, and active latitudes in the HAT-P-11 exoplanetary system
Starspots spin-orbit misalignment active latitudes
2011/10/9
We present the analysis of 4 months of Kepler photometry of the K4V star HAT-P-11, including 26 transits of its "super-Neptune" planet. The transit data exhibit numerous anomalies that we interpret as...
Velocity measurements for a solar active region fan loop from Hinode/EIS observations
Velocity measurements solar active region observations
2011/10/8
The velocity pattern of a fan loop structure within a solar active region over the temperature range 0.15-1.5 MK is derived using data from the EUV Imaging Spectrometer (EIS) on board the Hinode satel...
The HARPS search for southern extrasolar planets. XXV. Four new planets in orbit around the moderatly active dwarfs HD 63765, HD 104067, HD 125595, and HIP 70849
Techniques: radial velocities – Methods: data analysis – genetic algorithm Stars: individual:HD 104067 HD 125595 HIP 70849
2011/9/27
We report the detection of four new extrasolar planets in orbit around the moderately active stars HD 63765, HD 104067, HIP 70849, and HD 125595 with the HARPS Echelle spectrograph mounted on the ESO ...
Observational Study of Solar Magnetic Active Phenomena
Sun: activity flares magnetic fields
2010/9/17
The electric current separated into two parts reflected the quantative properties of heterogeneity and chirality of magnetic field, and defined them as the shear and twist components of current. We an...
Photospheric, Chromospheric and Helioseismic Signatures of a Large Flare in Super-active Region NOAA 10486
Solar flares flare trigger ring diagram
2010/9/16
NOAA 10486 produced several powerful flares, including the 4B/X17.2 superflare of October 28, 2003/11:10 UT. This flare was extensively covered by the Hα and GONG instruments operated at the Udaipur S...
Helicity of Solar Active Regions from a Dynamo Model
MHD—Sun activity—Sun magnetic fields—sunspots
2010/9/16
We calculate helicities of solar active regions based on the idea that poloidal flux lines get wrapped around a toroidal flux tube rising through the convection zone, thereby giving rise to the helici...
The electric current separated into two parts reflected the quantative properties of heterogeneity and chirality of magnetic field, and defined them as the shear and twist components of current. We an...
Photospheric, Chromospheric and Helioseismic Signatures of a Large Flare in Super-active Region NOAA 10486
Solar flares flare trigger ring diagram
2009/5/7
NOAA 10486 produced several powerful flares, including the 4B/X17.2 superflare of October 28, 2003/11:10 UT. This flare was extensively covered by the Hα and GONG instruments operat...
Helicity of Solar Active Regions from a Dynamo Model
MHD Sun:activity Sun:magnetic fields sunspots
2009/5/7
We calculate helicities of solar active regions based on the idea that poloidal flux lines get wrapped around a toroidal flux tube rising through the convection zone, thereby giving rise to the helici...
Magnetic and Velocity Field Variations in the Active Regions NOAA 10486 and NOAA 10488
Sun: magnetogram Sun: Dopplergram Sun: flare
2009/5/6
We study the magnetic and velocity field evolution in the
two magnetically complex active regions NOAA 10486 and NOAA 10488
observed during October–November 2003.We have used the available data
to ...