Variability of Young Massive Stars in the Arches Cluster: Accurate Photometry with Adaptive Optics

Variability of young stars: Determination of rotational periods of weak-line T Tauri stars in the Cepheus-Cassiopeia star-forming region

Variable accretion in the embedded phase of stellar evolution

Variable circumstellar activity of V351 Orionis

Variable Point Sources in Sloan Digital Sky Survey Stripe 82. I. Project Description and Initial Catalog (0 h < R.A. < 4 h)

Variable Stars

Variable Stars in Large Magellanic Cloud Globular Clusters I: NGC 1466

Variable Stars in the Cetus dSph Galaxy: Population Gradients and Connections with the Star Formation History

Variable Stars in the Field of the Open Cluster NGC 2126

Variable Stars in the Globular Cluster NGC 6752

Variable Stars in the Open Cluster NGC 7142

Variable turbulent convection as the cause of the Blazhko effect - testing the Stothers model

Variable X-ray emission from the accretion shock in the Classical T Tauri Star V2129 Oph

Variation in sunspot properties between 1999 and 2011 as observed with the Tenerife Infrared Polarimeter

Variation in the frequency separations with activity and impact on stellar parameter determination

Variation of Oscillation Mode Parameters over the Solar Cycle 23: An Analysis on Different Time Scales

Variations in $p$-Mode Parameters with Changing Onset-Time of a Large Flare

Variations in p-mode Parameters and Sub-surface Flows of Active Regions with Flare Activity

Variations in the axisymmetric transport of magnetic elements on the Sun: 1996-2010

Variations of Flux Intensity in Large Features and Spectral Lines of alpha2 CVn in Ultraviolet