activity
20082017
most citedSunspot Count Periodicities in Different Zurich Sunspot Group Classes since 1986

32 citations · 70 across the 4 of their papers we have counts for

collaborators

7 papers

astro-ph.SR2017★ 21 cited

Temporal and Periodic Variations of Sunspot Counts in Flaring and Non-flaring Active Regions

A. Kilcik, V. Yurchyshyn, B. Donmez +3

We analyzed temporal and periodic behavior of sunspot counts (SSCs) in flaring (C, M, or X class flares), and non-flaring active regions (ARs) for the almost two solar cycles (1996…

astro-ph.SR2016★ 8 cited

Temporal Offsets between Maximum CME Speed Index and Solar, Geomagnetic, and Interplanetary Indicators during Solar Cycle 23 and the Ascending Phase of Cycle 24

A. Özgüç, A. Kilcik, K. Georgieva +1

On the basis of morphological analysis of yearly values of the maximum CME (coronal mass ejection) speed index, the sunspot number and total sunspot area, sunspot magnetic field, a…

astro-ph.SR2016★ 9 cited

Active Latitude Oscillations Observed on the Sun

A. Kilcik, V. Yurchyshyn, F. Clette +2

We investigate periodicities in mean heliographic latitudes of sunspot groups, called active latitudes, for the last six complete solar cycles (1945-2008). For this purpose, the Mu…

astro-ph.SR2014★ 32 cited

Sunspot Count Periodicities in Different Zurich Sunspot Group Classes since 1986

A. Kilcik, A. Ozguc, V. B. Yurchyshyn +1

In this study, we used two methods to investigate the periodic behavior of sunspot counts in four categories for the time period January 1986-October 2013. These categories include…

astro-ph.SR2011

Maximum Coronal Mass Ejection Speed as an Indicator of Solar and Geomagnetic Activities

A. Kilcik, V. B. Yurchyshyn, V. Abramenko +4

We investigate the relationship between the monthly averaged maximal speeds of coronal mass ejections (CMEs), international sunspot number (ISSN), and the geomagnetic Dst and Ap in…

astro-ph.SR2011

Time Distributions of Large and Small Sunspot Groups Over Four Solar Cycles

A. Kilcik, V. B. Yurchyshyn, V. Abramenko +4

Here we analyze solar activity by focusing on time variations of the number of sunspot groups (SGs) as a function of their modified Zurich class. We analyzed data for solar cycles…