平谱射电噪窄线赛弗特1型星系的红外光变性质研究  

On the Infrared Variability Properties of a Sample of Flat-Spectrum Radio-Loud Narrow-Line Seyfert 1 Galaxies

作　　者：黄伟天 宁宫明 毛李胜[1] HUANG Weitian;NING Gongming;MAO Lisheng(School of Physics and Electronic Information,Yunnan Normal University,Kunming 650500,China)

机构地区：[1]云南师范大学物理与电子信息学院,云南昆明650500

出　　处：《云南师范大学学报（自然科学版）》2024年第4期10-14,共5页Journal of Yunnan Normal University:Natural Sciences Edition

基　　金：国家自然科学基金资助项目(12063007);云南省“兴滇英才支持计划”资助项目.

摘　　要：利用42个平谱射电噪窄线赛弗特1型星系(其中8个为伽马射线源)的广域红外巡天望远镜测光数据,研究其中伽马射线源和非伽马射线源的红外光变性质,以及恒星形成过程对红外光变的贡献.结果发现:(1)所有源均表现出日内光变现象;(2)相比非伽马射线源,伽马射线源平均具有更高的日内光变占空比和长期光变幅度;(3)恒星形成过程对红外波段光变的影响可以忽略.42 flat-spectrum radio-loud narrow-line Seyfert 1 galaxies(including 8 gamma-ray loud sources)were selected.Using photometric data from the Wide-field Infrared Survey Explore(WISE),we studied the infrared variability characteristics of both gamma-ray-loud and non-gamma-ray-loud sources,along with the contribution of star formation processes to infrared variability.The results show that:(1)all sources exhibit intra-day variability(IDV);(2)compared to the non-gamma-ray-loud sources,the gamma-ray-loud sources have on average higher IDV duty cycle and long-term variability amplitude;(3)the impact of star formation process on infrared variability could be neglected.

关 键 词：赛弗特星系 红外光变 伽马射线 统计 

分 类 号：P141[天文地球—天体物理]