
doi: 10.1007/bf00645181
Allδ-sunspots from September 1986 to December 1992 in solar cycle 22 are used to investigate the characteristics ofδ-sunspots and the relationship betweenδ-sunspots and X-class X-ray flares. The main results of this statistical study are as follows.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 48 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Top 10% | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
