58 citations · 274 across the 7 of their papers we have counts for
9 papers
Photospheric activity of the Sun with VIRGO and GOLF: Comparison with standard activity proxies
D. Salabert, R. A. García, A Jiménez +3
We study the variability of solar activity using new photospheric proxies originally developed for the analysis of stellar magnetism with the CoRoT and Kepler photometric observati…
Ca II K 1-A Emission Index Composites
Luca Bertello, Andrew R. Marble, Alexei A. Pevtsov
We describe here a procedure to combine measurements in the 393.37 nm Ca II K spectral line taken at different observatories. Measurements from the National Solar Observatory (NSO)…
Correlation Between Sunspot Number and ca II K Emission Index
Luca Bertello, Alexei A. Pevtsov, Andrey Tlatov +1
Long-term synoptic observations in the resonance line of Ca II K constitute a fundamental database for a variety of retrospective analyses of the state of the solar magnetism. Syno…
HMI Synoptic Maps Produced by NSO/NISP
Anna L. H. Hughes, Luca Bertello, Andrew R. Marble +3
Recently, the National Solar Observatory (NSO) Solar-atmosphere Pipeline Working Group has undertaken the production of synoptic maps from Helioseismic and Magnetic Imager (HMI) ma…
Cyclic and Long-term Variation of Sunspot Magnetic Fields
Alexei A. Pevtsov, Luca Bertello, Andrey G. Tlatov +3
Measurements from the Mount Wilson Observatory (MWO) are used to study the long-term variations of sunspot field strengths from 1920 to 1958. Following a modified approach similar…
An Analysis of Apparent r-Mode Oscillations in Solar Activity, the Solar Diameter, the Solar Neutrino Flux, and Nuclear Decay Rates, with Implications Concerning the Solar Internal Structure and Rotation, and Neutrino Processes
P. A. Sturrock, L. Bertello, E. Fischbach +4
This article presents a comparative analysis of solar activity data, Mt Wilson diameter data, Super-Kamiokande solar neutrino data, and nuclear decay data acquired at the Lomonosov…