390 citations · 5.1k across the 93 of their papers we have counts for
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Variation of the Mn I 539.4 nm line with the solar cycle
S. Danilovic, S. K. Solanki, W. Livingston +2
As a part of the long-term program at Kitt Peak National Observatory (KPNO), the Mn I 539.4 nm line has been observed for nearly three solar cycles using the McMath telescope and t…
Sunspot areas and tilt angles for solar cycles 7-10
V. Senthamizh Pavai, R. Arlt, M. Dasi-Espuig +2
Extending the knowledge about the properties of solar cycles into the past is essential for understanding the solar dynamo. This paper aims at estimating areas of sunspots observed…
The role of the Fraunhofer lines in solar brightness variability
A. I. Shapiro, S. K. Solanki, N. A. Krivova +2
The solar brightness varies on timescales from minutes to decades. A clear identification of the physical processes behind such variations is needed for developing and improving ph…
The Maunder minimum (1645--1715) was indeed a Grand minimum: A reassessment of multiple datasets
Ilya G. Usoskin, Rainer Arlt, Eleanna Asvestari +13
Aims: Although the time of the Maunder minimum (1645--1715) is widely known as a period of extremely low solar activity, claims are still debated that solar activity during that pe…