LBA observations for project V252 semester 2023OCTS

The TANAMI program maximizes the scientific return of LBA capabilities with high-fidelity imaging of key AGN targets such as TeV sources and neutrino-candidate blazars at 2.3 GHz and 8.4 GHz. This continues our practice of incorporating emerging scientific opportunities which, for example, have placed us in a central role in multi-messenger astrophysics and the study of emerging classes of sources from Fermi observations. These VLBI observations are the only means to obtain parsec scale kinematics and morphology of AGN which are essential to answer the most exciting open questions in AGN jet physics and their connection to high energy astrophysics. We request continuation of this highly productive, uniquely long time-baseline monitoring program that is strongly supported by multi-wavelength resources and will undoubtedly be a prime legacy dataset from the LBA.

塔纳米（TANAMI）计划通过在2.3 GHz与8.4 GHz频段对关键活动星系核（Active Galactic Nucleus，AGN）目标（如TeV源及中微子候选耀变体）开展高保真成像，最大化发挥甚长基线阵列（Long Baseline Array，LBA）的科研产出效益。本计划延续了我们纳入新兴科研机遇的一贯实践，例如我们借此在多信使天体物理学领域以及基于费米（Fermi）观测的新型源类研究中占据核心地位。此类甚长基线干涉测量（Very Long Baseline Interferometry，VLBI）观测是获取活动星系核秒差距尺度运动学与形态学特征的唯一途径，而这些特征对于解答活动星系核喷流物理学及其与高能天体物理学关联领域中最具吸引力的未解问题至关重要。我们申请延续这项成效显著、独具长时基线特色的监测计划，该计划获得了多波段观测资源的强力支持，无疑将成为甚长基线阵列（LBA）产出的核心遗留数据集。