RUI: Collaborative Research: The Effect of Filaments on the Gas in Galaxies

RUI：合作研究：细丝对星系中气体的影响

• 批准号: 1716657
• 负责人: Rose Finn
• 金额: $ 22.96万
• 依托单位: Siena College
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-01-01 至 2022-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1716657&HistoricalAwards=false
• 关键词: RUI; Collaborative; Research; Effect; Filaments

Astronomers seek to understand how galaxies form and evolve. A galaxy's growth may be affected by processes within the galaxy itself and/or by its environment. Such growth is measured by the rate of new star formation. Galaxies can be found among vast aggregates of matter which are called filaments; alternatively, they may be isolated from one another. Galaxies found in filaments typically grow more slowly than isolated galaxies. Finn and collaborators seek to understand why filaments quench star formation. This project will combine imaging of the gas that fuels star formation in galaxies with observations that reveal the resulting star formation. Investigators will compare galaxies in both types of environment to determine the method of star formation quenching. Their results will challenge theoretical models. The project will also continue a successful, ongoing outreach to a local high school. Peer instruction will be added to leverage impact without additional funds. Kansas, the state where one of the investigators is located, is on the front-lines of the nationwide debate on the role of science in the classroom. Therefore, this effort to broaden participation in science is especially timely and relevant.This project will combine a large imaging survey in H-alpha and observations of neutral Hydrogen (HI) and molecular gas (CO). The project has three specific aims. The first aim is to directly measure whether the amount of neutral and/or molecular gas available to eventually form stars is measurably lower in filament galaxies compared to those in the field, group, or cluster environment. The second aim focuses on the spatial distribution of star formation within each galaxy. This aim will determine whether ram pressure stripping, starvation, and/or mergers are significant mechanisms for quenching star formation. The third aim uses the results of the first two aims to confront theoretical models of star formation quenching in the context of cosmological structure growth. The Data Management Plan includes release of the main data products: H-alpha + continuum maps of 200 galaxies and HI and CO measurements. Ancillary and raw data will be released upon publication and archived.

天文学家试图了解星系是如何形成和演化的。 星系的生长可能会受到星系本身内部过程和/或其环境的影响。 这种增长是通过新恒星形成的速率来衡量的。 星系存在于巨大的物质聚集体中，这些物质被称为细丝。或者，它们可以彼此隔离。 在细丝中发现的星系通常比孤立的星系生长得更慢。 芬恩和合作者试图了解为什么细丝会抑制恒星形成。 该项目将把星系中为恒星形成提供燃料的气体成像与揭示由此产生的恒星形成的观测结合起来。 研究人员将比较两种环境中的星系，以确定恒星形成猝灭的方法。 他们的结果将挑战理论模型。 该项目还将继续对当地一所高中进行成功、持续的推广。 将添加同行指导以发挥影响力，而无需额外资金。 一名调查人员所在的堪萨斯州处于全国范围内关于科学在课堂中的作用辩论的最前沿。 因此，这种扩大科学参与的努力特别及时和相关。该项目将结合 H-α 的大型成像调查以及中性氢 (HI) 和分子气体 (CO) 的观测。 该项目有三个具体目标。 第一个目标是直接测量丝状星系中最终形成恒星的中性和/或分子气体的量是否明显低于场、星系团或星团环境中的量。 第二个目标侧重于每个星系内恒星形成的空间分布。 这一目标将确定冲压压力剥离、饥饿和/或合并是否是淬灭恒星形成的重要机制。 第三个目标利用前两个目标的结果来对抗宇宙结构增长背景下恒星形成猝灭的理论模型。 数据管理计划包括主要数据产品的发布：H-alpha + 200个星系的连续谱图以及HI和CO测量。 辅助数据和原始数据将在发布并存档后发布。

项目成果

Virgo Filaments. II. Catalog and First Results on the Effect of Filaments on Galaxy Properties

处女座细丝。

• DOI: 10.3847/1538-4365/ac45f7
• 发表时间: 2022-03
• 期刊: The Astrophysical Journal Supplement Series
• 作者: Castignani, Gianluca;Vulcani, Benedetta;Finn, Rose A.;Combes, Francoise;Jablonka, Pascale;Rudnick, Gregory;Zaritsky, Dennis;Whalen, Kelly;Conger, Kim;De Lucia, Gabriella;et al
• 通讯作者: et al

The Local Cluster Survey II: disc-dominated cluster galaxies with suppressed star formation

本地星团巡天 II：恒星形成受到抑制的盘主导星团星系

• DOI: 10.1093/mnras/stad640
• 发表时间: 2023-03
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Finn, Rose A.;Vulcani, Benedetta;Rudnick, Gregory;Balogh, Michael L.;Desai, Vandana;Jablonka, Pascale;Zaritsky, Dennis
• 通讯作者: Zaritsky, Dennis

Virgo filaments: I. Processing of gas in cosmological filaments around the Virgo cluster

处女座细丝：I. 处女座星团周围宇宙细丝中气体的处理

• DOI: 10.1051/0004-6361/202040141
• 发表时间: 2022-01
• 期刊: Astronomy & Astrophysics
• 影响因子: 6.5
• 作者: Castignani, G.;Combes, F.;Jablonka, P.;Finn, R. A.;Rudnick, G.;Vulcani, B.;Desai, V.;Zaritsky, D.;Salomé, P.
• 通讯作者: Salomé, P.