IRES Track I: Exploring New Horizons in the Observable Universe at the Cosmic Dawn Center of Excellence in Copenhagen

IRES 第一轨：在哥本哈根宇宙黎明卓越中心探索可观测宇宙的新视野

• 批准号: 2005578
• 负责人: Katherine Whitaker
• 金额: $ 25.04万
• 依托单位: University of Massachusetts Amherst
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2019
• 资助国家: 美国
• 起止时间: 2019-08-23 至 2023-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2005578&HistoricalAwards=false
• 关键词: IRES; Track; Exploring; New; Horizons

The first stars, galaxies and black holes burst into existence only a few hundred million years after the Big Bang, bringing light to the cosmos and setting in motion processes that built the Universe as we see it today. Many mysteries remain about these early epochs, but not for too much longer: new and upcoming facilities such as the Atacama Large Millimeter Array and the James Webb Space Telescope are optimized to revolutionize our understanding of this time period, known as "Cosmic Dawn." The Cosmic Dawn Center of Excellence (DAWN, established 2018), an international research center in Copenhagen, Denmark, brings together scholars whose interests span a broad range of observational and theoretical inquiries into Cosmic Dawn. Their expertise, together with Copenhagen's beautiful and enriching setting, make DAWN an ideal host for budding US scholars. We will create the DAWN-IRES Scholars Program to empower future generations of US scientists through a once-in-a-lifetime opportunity of visiting Copenhagen to immerse themselves into this vibrant international research center. The DAWN-IRES scholars will join a cohort of 7 student researchers in a stimulating 10-week science program that merges research using next-generation telescopes with life in a thousand-year-old city. The program's structure will encourage students to build learning communities within their cohorts, equipping them with practical research and communication skills. At the same time, the international exposure and access to cutting-edge resources will help maintain US leadership within the global astronomical community.Students will lead observational and/or theoretical projects that contribute towards understanding some of the most fundamental questions in astrophysics today: What caused the reionization of the Universe? How do the first, massive galaxies form? What is the origin of galaxy scaling relations? What quenches star formation in massive galaxies? Over the next decade, the center's mission is to develop and test a physical model explaining the key processes responsible for the assembly of the earliest galaxies through to the present day. The DAWN-IRES Scholars will join this thriving international research network, bridging the world class research performed by the US-based associate faculty coordinating this program with the DAWN permanent faculty and the local program coordinator. The key learning goals of this international research experience include: (1) building a learning community to stimulate personal and academic growth, (2) developing effective scientific communication skills, and (3) performing globally competitive research addressing an open question in astrophysics.The DAWN-IRES program is primarily designed to enhance the progress of science through a unique global educational training experience for a diverse cohort of US students. The themes defining the broader impact of the program include diversity, training, dissemination, and community. Through extensive proactive recruitment strategies (direct contact with faculty at minority-serving institutions, leveraging social media, widely circulating flyers, local announcements in STEM courses, and more), the PI will assemble diverse groups of scholars to stimulate excellence and innovation. The program incorporates a wide range of professional development activities that are focused on advancing scientific communication skills (e.g., weekly seminars, hack days, oral presentations abroad and stateside). The students will also build professional research toolkits, including learning programming, data analysis and presentation techniques. Dissemination of research will occur through the DAWN-IRES Scholars Symposium at the end of each summer in Copenhagen, together with a presentation at the students' local institutions and the national American Astronomical Society meeting. Working with the Center for Excellence in Teaching at UConn, the assessment strategy of DAWN-IRES will be tailored to the learning goals of the program.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

第一批恒星、星系和黑洞在大爆炸后数亿年才爆发出来，给宇宙带来了光明，并开始了构建我们今天所看到的宇宙的运动过程。关于这些早期的时代仍然存在许多谜团，但不会持续太久：新的和即将到来的设施，如阿塔卡马大型毫米波阵列和詹姆斯韦伯太空望远镜，都是为了彻底改变我们对这段时间的理解，被称为“宇宙黎明”。宇宙黎明卓越中心（DAWN，成立于2018年）是位于丹麦哥本哈根的一个国际研究中心，汇集了对宇宙黎明进行广泛观测和理论研究的学者。他们的专业知识，再加上哥本哈根美丽而丰富的环境，使黎明成为美国学者的理想东道主。我们将创建DAWN-IRES学者计划，通过访问哥本哈根的千载难逢的机会，让未来几代美国科学家沉浸在这个充满活力的国际研究中心。DAWN-IRES学者将加入一个由7名学生研究人员组成的小组，参加一个为期10周的科学项目，该项目将使用下一代望远镜的研究与千年古城的生活相结合。该计划的结构将鼓励学生在他们的同龄人中建立学习社区，为他们提供实用的研究和沟通技能。与此同时，国际曝光和获得尖端资源将有助于保持美国在全球天文学界的领导地位。学生将领导观测和/或理论项目，有助于理解当今天体物理学中一些最基本的问题：是什么导致了宇宙的再电离？ 第一个大质量星系是如何形成的？ 星系尺度关系的起源是什么？是什么阻止了大质量星系中星星的形成？ 在接下来的十年里，该中心的使命是开发和测试一个物理模型，解释负责最早的星系组装到今天的关键过程。黎明-IRES学者将加入这个蓬勃发展的国际研究网络，桥接由美国副教授与黎明永久教师和当地项目协调员协调该项目所进行的世界级研究。 这项国际研究经验的主要学习目标包括：（1）建立一个学习型社区，以促进个人和学术成长，（2）发展有效的科学沟通技能，和（3）进行具有全球竞争力的研究，解决天体物理学中的一个悬而未决的问题。IRES计划的主要目的是通过为美国不同群体提供独特的全球教育培训经验，促进科学的进步。学生 确定该计划更广泛影响的主题包括多样性，培训，传播和社区。 通过广泛的主动招聘策略（与少数民族服务机构的教师直接联系，利用社交媒体，广泛传播的传单，STEM课程的本地公告等），PI将汇集不同的学者群体，以刺激卓越和创新。 该计划包括广泛的专业发展活动，重点是提高科学沟通技能（例如，每周研讨会，黑客天，口头报告国外和美国）。 学生还将建立专业的研究工具包，包括学习编程，数据分析和演示技术。 研究的传播将通过在哥本哈根每年夏季结束时举行的DAWN-IRES学者研讨会进行，同时在学生的当地机构和美国天文学会全国会议上进行介绍。 与康州大学卓越教学中心合作，DAWN-IRES的评估策略将根据该计划的学习目标量身定制。该奖项反映了NSF的法定使命，并被认为值得通过使用基金会的智力价值和更广泛的影响审查标准进行评估来支持。

项目成果

Tracing Molecular Gas Mass in z ≃ 6 Galaxies with [C ii]

• DOI: 10.3847/1538-4357/ac5cba
• 发表时间: 2022-03
• 期刊: The Astrophysical Journal
• 作者: D. Vizgan;T. Greve;K. Olsen;A. Zanella;D. Narayanan;R. Davé;G. Magdis;G. Popping;F. Valentino;K. Heintz

Quenching and the UVJ Diagram in the SIMBA Cosmological Simulation

• DOI: 10.3847/1538-4357/ac5d3a
• 发表时间: 2021-05
• 期刊: The Astrophysical Journal
• 作者: H. Akins;D. Narayanan;K. Whitaker;R. Dav'e;S. Lower;R. Bezanson;R. Feldmann;M. Kriek

Finding High-redshift Galaxies with JWST

• DOI: 10.3847/1538-4357/ac2a2f
• 发表时间: 2021-11
• 期刊: The Astrophysical Journal
• 作者: C. Steinhardt;C. K. Jespersen;N. B. Linzer

Investigating the [C ii]-to-H i Conversion Factor and the H i Gas Budget of Galaxies at z ≈ 6 with Hydrodynamic Simulations

通过流体动力学模拟研究 z ≤ 6 处星系的 [C ii] 到 H i 转换因子和 Hi 气体收支

• DOI: 10.3847/2041-8213/ac982c
• 发表时间: 2022
• 期刊: The Astrophysical Journal Letters
• 作者: Vizgan, David;Heintz, Kasper E.;Greve, Thomas R.;Narayanan, Desika;Davé, Romeel;Olsen, Karen P.;Popping, Gergö;Watson, Darach
• 通讯作者: Watson, Darach

ALMA Reveals Extended Cool Gas and Hot Ionized Outflows in a Typical Star-forming Galaxy at Z = 7.13

• DOI: 10.3847/1538-4357/ac795b
• 发表时间: 2022-06
• 期刊: The Astrophysical Journal
• 作者: H. Akins;S. Fujimoto;K. Finlator;D. Watson;K. Knudsen;J. Richard;Tom J. L. C. Bakx;T. Hashimoto;A. Inoue;H. Matsuo;M. Michałowski;Y. Tamura