Solar meridional circulation is an axisymmetric flow system, extending from the equator to
the poles (∼ 20 m/s at the surface,≈ 1% of the mean solar rotation rate), plunging inwards …

Abstract The Helioseismic and Magnetic Imager (HMI) instrument and investigation as a part
of the NASA Solar Dynamics Observatory (SDO) is designed to study convection-zone …

Abstract NASA's Solar Dynamics Observatory (SDO) spacecraft was launched 11 February
2010 with three instruments onboard, including the Helioseismic and Magnetic Imager …

We propose a new approach to test possible corrections to Newtonian gravity using solar
physics. The high accuracy of current solar models and new precise observations allow us …

Meridional flow is thought to play a very important role in the dynamics of the solar
convection zone; however, because of its relatively small amplitude, precisely measuring it …

Several recent studies utilizing different helioseismic methods have confirmed the presence
of large-scale vorticity waves known as solar Rossby waves within the Sun. Rossby waves …

We report on a systematic center-to-limb variation in measured helioseismic travel times,
which must be taken into account for an accurate determination of solar interior meridional …

Using time–distance local helioseismology flow maps within 1 Mm of the solar photosphere,
we detect inflows toward activity belts that contribute to solar-cycle scale variations in the …

Large-scale plasma flows in the Sun's convection zone likely play a major role in solar
dynamics on decadal timescales. In particular, quantifying meridional motions is a critical …

Coronal mass ejections (CMEs) are major drivers of extreme space weather conditions, as
this is a matter of serious concern for our modern technologically dependent society. The …