Does high-latitude solar activity lead low-latitude solar activity in time phase?

Authors

K. J. Li, Yunnan Observatories
P. X. Gao, Yunnan Observatories
J. Qiu, Big Bear Solar Observatory

Document Type

Article

Publication Date

8-1-2006

Abstract

Using data from the Carte Synoptique solar filaments archive, we investigate whether there is a time lag between high-latitude solar activity and low-latitude solar activity. The cross-correlation analysis of the number of high-latitude filaments per Carrington rotation (NHF) and that of low-latitude filaments per Carrington rotation (NLF) shows, although inconclusively, that NLF possibly lags behind NHF. The periodic characteristics of both NHF and NLF clearly indicate that the activity of high-latitude filaments is evidently leading the activity of low-latitude filaments. Thus, the present study suggests that high-latitude solar activity leads low-latitude solar activity in time phase. © 2006. The American Astronomical Society. All rights reserved.

Identifier

33748085355 (Scopus)

Publication Title

Astrophysical Journal

External Full Text Location

https://doi.org/10.1086/503376

e-ISSN

15384357

ISSN

0004637X

First Page

1392

Last Page

1397

Issue

2 I

Volume

646

Recommended Citation

Li, K. J.; Gao, P. X.; and Qiu, J., "Does high-latitude solar activity lead low-latitude solar activity in time phase?" (2006). Faculty Publications. 18872.
https://digitalcommons.njit.edu/fac_pubs/18872