North-South Distribution and Asymmetry of GOES SXR Flares during Solar Cycle 24

Author:

Joshi Anita1,Chandra Ramesh2

Affiliation:

1. Department of Science and Technology , D. M. Office, NainiTal , 263002 , India

2. Department of Physics , DSB Campus, Kumaun University , NainiTal , 263002 , India

Abstract

Abstract Here we present the results of the study of the north-south (N-S) distribution and asymmetry of GOES soft X-ray (SXR) flares during solar cycle 24. The period of study includes ascending, maximum and descending phases of the cycle. During the cycle double-peaked (2011, 2014) solar maximum has occurred. The cycle peak in the year 2011 is due to B-class flares excess activity in the northern hemisphere (NH) whereas C and M class flares excess activity in the southern hemisphere (SH) supported the second peak of the cycle in 2014. The data analysis shows that the SXR flares are more pronounced in 11 to 20 degree latitudes for each hemisphere. Cumulative values of SXR flare count show northern excess during the ascending phase of the cycle. However, in the descending phase of the cycle, southern excess occurred. In the cycle a significant SH dominated asymmetry exists. Near the maximum of the cycle, the asymmetry enhances pronouncedly and reverses in sign.

Publisher

Walter de Gruyter GmbH

Subject

Space and Planetary Science,Astronomy and Astrophysics

Reference56 articles.

1. Ataç, T., Özgüç, A. 1996, Sol. Phys., 166, 201-208.

2. Ataç, T., Özgüç, A. 2001, Sol. Phys., 198, 399-407.

3. Ballester, J. L., Oliver, R., Carbonell, M. 2005, Astron. & Astrophys., 431, L5-L8.

4. Bazilevskaya, G. A., Krainev, M. B., Makhmutov, V. S., Flückiger, E. O., Sladkova, A. I., Storini, M. 2000, Sol. Phys., 197, 157-174.

5. Bornmann, P. L., et al. 1996, Proc. SPIE, 2812, 309-319.

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3