[HTML][HTML] Solar surface convection
Å Nordlund, RF Stein, M Asplund - Living Reviews in Solar Physics, 2009 - Springer
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Coupling from the photosphere to the chromosphere and the corona
The atmosphere of the Sun is characterized by a complex interplay of competing physical
processes: convection, radiation, conduction, and magnetic fields. The most obvious imprint …
processes: convection, radiation, conduction, and magnetic fields. The most obvious imprint …
Solar surface magneto-convection
RF Stein - Living Reviews in Solar Physics, 2012 - Springer
We review the properties of solar magneto-convection in the top half of the convection zones
scale heights (from 20 Mm below the visible surface to the surface, and then through the …
scale heights (from 20 Mm below the visible surface to the surface, and then through the …
Helioseismology of sunspots: confronting observations with three-dimensional MHD simulations of wave propagation
The propagation of solar waves through the sunspot of AR 9787 is observed by using
temporal cross-correlations of SOHO/MDI Dopplergrams. We then use three-dimensional …
temporal cross-correlations of SOHO/MDI Dopplergrams. We then use three-dimensional …
Solar flux emergence simulations
RF Stein, A Lagerfjärd, Å Nordlund, D Georgobiani - Solar Physics, 2011 - Springer
We simulate the rise through the upper convection zone and emergence through the solar
surface of initially uniform, untwisted, horizontal magnetic flux, with the same entropy as the …
surface of initially uniform, untwisted, horizontal magnetic flux, with the same entropy as the …
Time–Distance Helioseismology Data-Analysis Pipeline for Helioseismic and Magnetic Imager Onboard Solar Dynamics Observatory (SDO/HMI) and Its Initial …
J Zhao, S Couvidat, RS Bogart, KV Parchevsky… - Solar Physics, 2012 - Springer
Abstract The Helioseismic and Magnetic Imager onboard the Solar Dynamics Observatory
(SDO/HMI) provides continuous full-disk observations of solar oscillations. We develop a …
(SDO/HMI) provides continuous full-disk observations of solar oscillations. We develop a …
Advances in global and local helioseismology: an introductory review
AG Kosovichev - The Pulsations of the Sun and the Stars, 2011 - Springer
Helioseismology studies the structure and dynamics of the Sun's interior by observing
oscillations on the surface. These studies provide information about the physical processes …
oscillations on the surface. These studies provide information about the physical processes …
Flows around averaged solar active regions
DC Braun - The Astrophysical Journal, 2019 - iopscience.iop.org
We explore the general properties of near-surface flows around solar active regions.
Helioseismic holography is applied to HMI Dopplergrams yielding nearly 5000 flow …
Helioseismic holography is applied to HMI Dopplergrams yielding nearly 5000 flow …
Validated helioseismic inversions for 3D vector flows
Context. According to time-distance helioseismology, information about internal fluid
motions is encoded in the travel times of solar waves. The inverse problem consists of …
motions is encoded in the travel times of solar waves. The inverse problem consists of …
High-resolution helioseismic imaging of subsurface structures and flows of a solar active region observed by Hinode
J Zhao, AG Kosovichev, T Sekii - The Astrophysical Journal, 2009 - iopscience.iop.org
We analyze a solar active region observed by the Hinode Ca ii H line using the time–
distance helioseismology technique, and infer wave-speed perturbation structures and flow …
distance helioseismology technique, and infer wave-speed perturbation structures and flow …