Quasar Winds and Black Hole Growth at Cosmic Noon

宇宙正午的类星体风和黑洞生长

• 批准号: RGPIN-2021-04157
• 负责人: Gallagher, Sarah
• 金额: $ 2.48万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=762978
• 关键词: Quasar; Winds; Black; Hole; Growth

At cosmic noon, when the universe was about a third to a half its present age, both galaxies and their central, supermassive black holes went through phases of explosive growth when stars were formed in abundance and gas falling onto the black holes gave off tremendous amounts of light as quasars. Quasars are the prime suspects in two puzzles of galaxy evolution: why did the most massive galaxies stop forming stars and why are the masses of black holes and their host galaxies so well correlated? The best explanations to date for both are categorized as "feedback", which generically means the injection of energy from the black hole system into the gas in the host galaxy to prevent the continuing production of stars and perhaps turn off the quasar itself. Understanding how supermassive black holes grow and influence the galaxies they inhabit remains a driver for understanding the complex history of galaxy evolution over cosmic time.  I propose to address these topics with a multi-faceted program operating from small to large scales by focussing on my long-term objectives of addressing the questions of How do black holes grow? What is the nature of their energetic winds? and What is the impact of the windiest quasars on their home galaxies?  In pursuit of these objectives, we will take advantage of access to ground and space-based observatories and sophisticated modelling efforts to put quasar activity in context with the evolution of the galaxies in which it occurs. Scientifically, this program leverages Canadian expertise into active leadership in international initiatives including the Legacy Survey for Space and Time [LSST] Consortium.  Specific program activities focus on developing simulations for next generation surveys aimed at measuring the masses of thousands of black holes, developing the tools to support AGN Science with LSST, modelling changes over time of the outflows from luminous quasars with the powerful spectral simulation code SimBAL, and mapping the structure and star formation in galaxies that host the quasars with the strongest winds with the James Webb Space Telescope.  Targetting high-growth black holes - luminous quasars - during their peak epoch enables the unpacking of the interplay of accretion and outflow at this critical era of cosmic noon.

在宇宙中午，当宇宙大约三分之一至一半的年龄时，星系和中央的超大型黑洞都经历了爆炸性生长的阶段，当时恒星是抽象形成的，而气体落入黑色孔上则产生了大量的光作为Quasars。类星体是两个星系进化难题中的主要嫌疑人：为什么最大的星系停止形成星星，为什么黑洞及其宿主星系的质量如此之大？迄今为止，两者的最佳解释都被归类为“反馈”，这通常意味着将黑洞系统从宿主星系中的气体注入能量，以防止恒星的持续生产并可能关闭类星体本身。了解超级质量的黑洞如何生长和影响他们继承的星系仍然是理解宇宙时间中星系进化的复杂历史的驱动力。我建议通过重点关注我的长期目标，以解决黑洞如何生长的问题来解决这些主题，以从小到大尺度运作。他们的能量风的本质是什么？最风的类星体对他们的家庭星系有什么影响？为了实现这些目标，我们将利用访问地面和空间观测站的访问权以及复杂的建模工作，以随着发生的星系的发展，将类星体活动放在上下文中。从科学上讲，该计划将加拿大的专业知识利用在国际倡议中的积极领导才能，包括《时空和时间[LSST]财团的传统调查》。特定的计划活动专注于开发下一代调查的模拟，旨在衡量成千上万的黑洞的质量，开发使用LSST支持AGN科学的工具，建模，建模随着插座的插座的变化而变化，具有强大的频谱模拟代码Simbal，并映射了与Strote the Strack with the Stroth winds james web的星系中的结构和星形形成。靶向高增长的黑洞 - 发光的类星体 - 在其峰值时期，可以在这个宇宙中午的关键时代拆开颅相互作用和出口相互作用。