标题： 紧凑对称天体和超大质量双黑洞在VLBA成像和偏振测量调查中的研究 显示英文标题

标题： Compact Symmetric Objects and Supermassive Binary Black Holes in the VLBA Imaging and Polarimetry Survey

摘要： 我们展示了对可能的紧凑对称天体（CSOs）或超大质量双黑洞（SBBHs）的多频VLBA后续观测。 我们还提供了11个使用霍比-埃伯利望远镜观测的源的新光谱红移。 虽然这些观测未能确认新的SBBHs，但我们已在样本中识别出24个CSOs，其中15个是新指定的，并否定了52个候选者，剩下33个未确认的候选者。 这是第一个大规模统一的CSO样本，可用于揭示这些源的一些一般特性，包括形态演化和环境相互作用。 我们已检测到其中两个CSOs的偏振辐射，其特性与活动星系核统一方案一致。 显示英文摘要

摘要： We present multi-frequency Very Long Baseline Array (VLBA) follow-up observations of VLBA Imaging and Polarimetry Survey sources identified as likely compact symmetric objects (CSOs) or super-massive binary black holes (SBBHs). We also present new spectroscopic redshifts for 11 sources observed with the Hobby-Eberly Telescope. While no new SBBHs can be confirmed from these observations, we have identified 24 CSOs in the sample, 15 of which are newly designated, and refuted 52 candidates leaving 33 unconfirmed candidates. This is the first large uniform sample of CSOs which can be used to elicit some of the general properties of these sources, including morphological evolution and environmental interaction. We have detected polarised emission from two of these CSOs the properties of which are consistent with Active Galactic Nuclei unification schemes.