Title: Polarimetric Reverberation Mapping in Medium-Band Filters Show Chinese title

Title: 中波段滤光片的偏振回波映射

Abstract: Earlier, we suggested the "reload" concept of the polarimetric reverberation mapping of active galactic nuclei (AGN), proposed for the first time more than 10 years ago. We have successfully tested this approach of reverberation mapping of the broad emission line on the galaxy Mrk 6. It was shown that such an idea allows one to look at the AGN central parsec structure literally in a new light. However, the method originally assumed the use of spectropolarimetric observations, expensive in terms of telescope time, and implemented on rare large telescopes. Currently, we propose an adaptation of the polarimetric reverberation mapping of broad lines in medium-band filters following the idea of the photometric reverberation mapping, when filters are selected so that their bandwidth is oriented to the broad line and the surrounding continuum near. In this paper, we present the progress status of such monitoring conducted jointly at the Special astrophysical observatory and Asiago Cima Ekar observatory (OAPd/INAF) with support from Rozhen National Astronomical Observatory (NAO), some first results for the most frequently observed AGNs Mrk 335, Mrk 509, and Mrk 817, and the discussion of the future perspectives of the campaign. Show Chinese abstract

Abstract: 早些时候，我们提出了活动星系核（AGN）偏振回波映射的“重新加载”概念，该概念早在10多年前就首次被提出。我们成功地在星系Mrk 6上测试了这种宽发射线的回波映射方法。结果表明，这种想法使人们能够以全新的方式观察AGN中心的光年结构。然而，该方法最初假设使用光谱偏振观测，这在望远镜时间方面成本较高，并且只在稀有的大型望远镜上实现。目前，我们提出了一种适应性方法，即在中带滤光片下对宽线进行偏振回波映射，遵循测光回波映射的思想，即选择滤光片使其带宽指向宽线及其周围的连续谱。在本文中，我们介绍了在特殊天体物理观测站和Asiago Cima Ekar观测站（OAPd/INAF）联合进行的此类监测的进展情况，以及在Rozhen国家天文台（NAO）的支持下，对最常观测的AGN Mrk 335、Mrk 509和Mrk 817的一些初步结果，以及对该活动的未来前景的讨论。