Observational Manifestations of Solar Magnetoconvection: Center-to-Limb Variation
نویسندگان
چکیده
منابع مشابه
Observational manifestations of solar magneto-convection — center-to-limb variation
We present the first center-to-limb G-band images synthesized from high resolution simulations of solar magneto-convection. Towards the limb the simulations show “hilly” granulation with dark bands on the far side, bright granulation walls and striated faculae, similar to observations. At disk center G-band bright points are flanked by dark lanes. The increased brightness in magnetic elements i...
متن کاملCenter-to-Limb Variation of Solar 3-D Hydrodynamical Simulations
We examine closely the solar Center-to-Limb variation of continua and lines and compare observations with predictions from both a 3-D hydrodynamic simulation of the solar surface (provided by M. Asplund and collaborators) and 1-D model atmospheres. Intensities from the 3-D time series are derived by means of the new synthesis code Assǫt, which overcomes limitations of previously available codes...
متن کاملSolar Small-scale Magnetoconvection
Magnetoconvection simulations on mesogranule and granule scales near the solar surface are used to study the effect of convective motions on magnetic fields: the sweeping of magnetic flux into downflow lanes, the twisting of magnetic field lines, and the emergence and disappearance of magnetic flux tubes. Fromweak seed fields, convective motions produce highly intermittent magnetic fields in th...
متن کاملCenter-to-Limb Variation of Solar Line Profiles as a Test of NLTE Line Formation Calculations
We present new observations of the center-to-limb variation of spectral lines in the quiet Sun. Our long-slit spectra are corrected for scattered light, which amounts to 4–8 % of the continuum intensity, by comparison with a Fourier transform spectrum of the disk center. Different spectral lines exhibit different behaviors, depending on their sensitivity to the physical conditions in the photos...
متن کاملCenter-to-limb variation of the solar oscillation New results from MDI data
Using 17 hours of full-disk MDI Doppler data we have investigated the center-to-limb variation of the oscillatory wave spectrum of the solar photosphere. Power distributions in the khν-plane are calculated for fields of 20◦ × 20◦ on the Sun, centered at every 10◦ heliographic latitude. From the centerto-limb variation of the power in the f mode and the lowest 7 p modes we obtain information abo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Astrophysical Journal
سال: 2004
ISSN: 0004-637X,1538-4357
DOI: 10.1086/423305