26 citations · 155 across the 11 of their papers we have counts for
3 papers · 1 filter
Predictions of Astrometric Jitter for Sun-like Stars. II. Dependence on Inclination, Metallicity, and Active-Region Nesting
K. Sowmya, N. -E. Nèmec, A. I. Shapiro +5
Ultra-precise astrometry from the Gaia mission is expected to lead to astrometric detections of more than 20,000 exoplanets in our Galaxy. One of the factors that could hamper such…
Modeling stellar Ca II H & K emission variations. I. Effect of inclination on the S-index
K. Sowmya, A. I. Shapiro, V. Witzke +5
The emission in the near ultraviolet Ca II H & K lines is modulated by stellar magnetic activity. Although this emission, quantified via the S-index, has been serving as a prime pr…
Where have all the solar-like stars gone? Rotation period detectability at various inclinations and metallicities
Timo Reinhold, Alexander I. Shapiro, Veronika Witzke +3
The plethora of photometric data collected by the Kepler space telescope has promoted the detection of tens of thousands of stellar rotation periods. However, these periods are not…