标题： 耀变体 PKS 2326-502 在耀发状态下的毫米波、伽马射线和光学同时监测 显示英文标题

标题： Simultaneous Millimeter-wave, Gamma-ray, and Optical Monitoring of the Blazar PKS 2326-502 During a Flaring State

摘要： 将毫米波（mm波）数据纳入活动星系核（AGN）变率的多波段研究中，可以提供在其他波段不易获得的关于AGN物理的见解。 在这项工作中，我们展示了宇宙微波背景（CMB）望远镜在大范围天空上提供长期、高频率的毫米波AGN监测的潜力。 我们报告了一项使用南极望远镜（SPT）上的SPTpol仪器数据的试点研究，该仪器旨在观测弧分及更大角尺度的CMB。 在2013年至2016年期间，SPTpol主要被用于观察一个500平方度的区域，每天多次覆盖整个区域，探测器对中心波长分别为95和150 GHz的辐射敏感。 我们利用SPT 150 GHz观测数据创建AGN光变曲线，并将这些毫米波光变曲线与其他波段的数据，特别是伽马射线和光学波段的数据进行比较。 在本文中，我们专注于一个单一源——PKS 2326-502，在2013年至2016年间，该源在伽马射线、光学和现在毫米波波段都有日时标监测数据。 我们发现PKS 2326-502在此监控的前两年处于爆发状态，并进行了毫米波、光学R波段和伽马射线观测之间相关变化证据的搜索。 这项试点研究为当前和未来的CMB实验（如SPT-3G、Simons天文台和CMB-S4）提供了AGN监测的途径，包括与VRO-LSST等设施的多波段研究。 显示英文摘要

摘要： Including millimeter-wave (mm-wave) data in multi-wavelength studies of the variability of active galactic nuclei (AGN) can provide insights into AGN physics that are not easily accessible at other wavelengths. We demonstrate in this work the potential of cosmic microwave background (CMB) telescopes to provide long-term, high-cadence mm-wave AGN monitoring over large fractions of sky. We report on a pilot study using data from the SPTpol instrument on the South Pole Telescope (SPT), which was designed to observe the CMB at arcminute and larger angular scales. Between 2013 and 2016, SPTpol was used primarily to observe a single 500 deg^2 field, covering the entire field several times per day with detectors sensitive to radiation in bands centered at 95 and 150 GHz. We use SPT 150 GHz observations to create AGN light curves, and we compare these mm-wave light curves to those at other wavelengths, in particular gamma-ray and optical. In this Letter, we focus on a single source, PKS 2326-502, which has extensive, day-timescale monitoring data in gamma-ray, optical, and now mm-wave between 2013 and 2016. We find PKS 2326-502 to be in a flaring state in the first two years of this monitoring, and we present a search for evidence of correlated variability between mm-wave, optical R band, and gamma-ray observations. This pilot study is paving the way for AGN monitoring with current and upcoming CMB experiments such as SPT-3G, Simons Observatory, and CMB-S4, including multi-wavelength studies with facilities such as VRO-LSST.