In April 2013, a workshop entitled "What Regulates Galaxy Evolution" was held at the Lorentz Center. The aim of the workshop was to bring together the observational and theoretical community working on galaxy evolution, and to discuss in depth of the current problems in the subject, as well as to review the most recent observational constraints. A total of 42 astrophysicists attended the workshop. A significant fraction of the time was devoted to identifying the most interesting "open questions" in the field, and to discuss how progress can be made. This review discusses the four questions (one for each day of the workshop) that, in our opinion, were the focus of the most intense debate. We present each question in its context, and close with a discussion of what future directions should be pursued in order to make progress on these problems.

中文翻译：

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什么调节星系演化？我们对星系形成和演化的理解中的悬而未决的问题

2013年4月，在洛伦兹中心举办了题为“What Regulates Galaxy Evolution”的研讨会。研讨会的目的是将致力于星系演化的观测和理论界聚集在一起，深入讨论该主题的当前问题，并回顾最近的观测限制。共有42名天体物理学家参加了研讨会。大部分时间用于确定该领域最有趣的“开放性问题”，并讨论如何取得进展。这篇评论讨论了四个问题（研讨会的每一天一个），在我们看来，这是最激烈辩论的焦点。我们在其上下文中提出每个问题，