390 citations · 5.1k across the 93 of their papers we have counts for
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The nature of solar brightness variations
A. I. Shapiro, S. K. Solanki, N. A. Krivova +3
The solar brightness varies on timescales from minutes to decades. Determining the sources of such variations, often referred to as solar noise, is of importance for multiple reaso…
The influence of metallicity on stellar differential rotation and magnetic activity
Christoffer Karoff, Travis S. Metcalfe, Angela R. G. Santos +20
Observations of Sun-like stars over the last half-century have improved our understanding of how magnetic dynamos, like that responsible for the 11-year solar cycle, change with ro…
Analysis of full disc Ca II K spectroheliograms. I. Photometric calibration and CLV compensation
Theodosios Chatzistergos, Ilaria Ermolli, Sami K. Solanki +1
Historical Ca II K spectroheliograms (SHG) are unique in representing long-term variations of the solar chromospheric magnetic field. They usually suffer from numerous problems and…
Solar Irradiance Variability is Caused by the Magnetic Activity on the Solar Surface
K. L. Yeo, S. K. Solanki, C. M. Norris +3
The variation in the radiative output of the Sun, described in terms of solar irradiance, is important to climatology. A common assumption is that solar irradiance variability is d…
Spectral variability of photospheric radiation due to faculae I: The Sun and Sun-like stars
Charlotte M. Norris, Benjamin Beeck, Yvonne C. Unruh +3
Context. Stellar spectral variability on timescales of a day and longer, arising from magnetic surface features such as dark spots and bright faculae, is an important noise source…
New reconstruction of the sunspot group number since 1739 using the direct calibration and "backbone" methods
Theodosios Chatzistergos, Ilya G. Usoskin, Gennady A. Kovaltsov +2
Group sunspot number (GSN) series constitute the longest instrumental astronomical database providing information on solar activity. It is a compilation of observations by many ind…