697 citations · 1.9k across the 39 of their papers we have counts for
39 papers
Revisiting Christoph Scheiner's Sunspot Records: a New Perspective on Solar Activity of the Early Telescopic Era
V. M. S. Carrasco, A. Muñoz-Jaramillo, M. C. Gallego +1
Christoph Scheiner was one of the most outstanding astronomers in the history of the sunspot observations. His book, Rosa Ursina, is the reference work regarding the study of the e…
Re-calibration of the Sunspot Number: Status Report
F. Clette, L. Lefèvre, T. Chatzistergos +18
We report progress on the ongoing recalibration of the Wolf sunspot number (SN) and Group sunspot number (GN) following the release of version 2.0 of SN in 2015. This report consti…
Observation of large scale precursor correlations between cosmic rays and earthquakes
P. Homola, V. Marchenko, A. Napolitano +40
The search for correlations between secondary cosmic ray detection rates and seismic effects has long been a subject of investigation motivated by the hope of identifying a new pre…
Visualization of the challenges and limitations of the long-term sunspot number record
A. Munoz-Jaramillo, J. M. Vaquero
The solar cycle periodically reshapes the magnetic structure and radiative output of the Sun and determines its impact on the heliosphere roughly every 11 years. Besides this main…
Portuguese eyewitness accounts of the great space weather event of 1582
V. M. S. Carrasco, J. M. Vaquero
Newly discovered descriptions about the great aurora observed in March 1582 are presented in this work. These records were made by Portuguese observers from Lisbon. Both records de…
Revisiting the Amplitude of Solar Cycle 9: The Case of Sunspot Observations by W.C. Bond
V. M. S. Carrasco, M. C. Gallego, R. Arlt +1
William Cranch Bond, director of the Harvard College Observatory in mid-19th century, carried out detailed sunspot observations during the period 1847-1849. We highlight Bond was t…