我院天体物理光学AGN团组在天文学期刊《A&A Letters》上发表了题为“Periodic variations of the first and second moments of broad Balmer emission lines from central accretion disks”的SCI文章。
在该项工作中,基于双峰宽发射线的吸积盘起源,明确了双峰宽发射线的一阶矩和二阶矩的周期性变化,并且基于该理论模拟结果,在NGC1097中对双峰宽Hα的周期性变化进行了证认,明确了旋膊成分的存在。为双峰宽线的起源认证提供了明确的判断依据。

Fig. 1: Left panels show the variability of the first moment and the second moment of the double-peaked broad Hα in NGC1097. In the left panels, solid circles plus error bars in blue show the measured results through the 12 high quality spectra, solid and dashed red lines show the best descriptions and the corresponding 1RMS scatters. Right panels show the periodicity distributions.
中文题目:具有吸积盘起源的宽发射线的一阶和二阶矩的周期性变化
论文作者:张雪光(通信作者)
发表期刊:Astronomy & Astrophysics Letters
文章链接:https://arxiv.org/abs/2504.05531