Collaborative Research: Observing the Cosmic Evolution of Neutral Hydrogen
合作研究:观测中性氢的宇宙演化
基本信息
- 批准号:1814421
- 负责人:
- 金额:$ 33.69万
- 依托单位:
- 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:2018-09-01 至 2024-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Hydrogen is the most abundant element in the universe, and neutral hydrogen atoms are thus an important constituent of interstellar gas in galaxies, but also one of the most challenging to study. The faintness of neutral hydrogen emission means that it can only be detected beyond the nearby universe via long observations with large telescopes. A new telescope with improved sensitivity, the MeerKAT array, will examine how galaxies' neutral gas reservoirs have evolved over two thirds of the universe's history (i.e., the last nine billion years of cosmic time). It will determine how galaxies' neutral atomic hydrogen content relates to the properties of their stars, their environments, and their cosmic epochs. This will be compared with theoretical predictions in order to understand how gas flows into and out of galaxies and forms new stars while inside galaxies. The research will support the training of graduate and undergraduate students at the four universities; graduate students will gain additional experience in computation and statistics, research mentorship, education in STEM disciplines, and outreach to a variety of audiences.This survey will probe neutral hydrogen (HI) in emission to an unprecedentedly high redshift of z = 1.45. The combination of individual and stacked HI detections, complemented by theoretical modelling, multiwavelength observations, and a rich z = 0 reference dataset, will probe the evolution of (i) the baryonic Tully-Fisher relation, (ii) the HI mass function, and (iii) the dependence of galaxies' HI content on stellar and dark matter properties. OH megamasers detected as strong line emitters in the MeerKAT data will be used to place constraints on the cosmic history of gas-rich galaxy mergers. Both the HI survey data and the instructional modules used to provide student training will be publicly released as part of this project.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.
氢是宇宙中最丰富的元素,因此中性氢原子是星系中星际气体的重要组成部分,也是最具挑战性的研究之一。中性氢发射的微弱性意味着它只能通过大型望远镜的长期观测在附近的宇宙之外被发现。一个新的望远镜具有更高的灵敏度,MeerKAT阵列,将研究星系的中性气体储存如何演变超过三分之二的宇宙历史(即,宇宙时间的最后90亿年)。它将确定星系的中性氢原子含量如何与其恒星的性质,环境和宇宙时代相关。这将与理论预测进行比较,以了解气体如何流入和流出星系,并在星系内形成新的恒星。该研究将支持四所大学的研究生和本科生的培训;研究生将获得计算和统计学、研究导师、STEM学科教育以及各种受众的额外经验。该调查将探测发射到z = 1.45的前所未有的高红移的中性氢(HI)。单独和堆叠HI检测的组合,辅以理论建模,多波长观测和丰富的z = 0参考数据集,将探测(i)重子Tully-Fisher关系的演变,(ii)HI质量函数,以及(iii)星系的HI含量对恒星和暗物质性质的依赖性。在MeerKAT数据中检测到作为强线发射体的OH超脉泽将用于限制富含气体的星系合并的宇宙历史。HI调查数据和用于提供学生培训的教学模块都将作为该项目的一部分公开发布。该奖项反映了NSF的法定使命,并通过使用基金会的知识价值和更广泛的影响审查标准进行评估,被认为值得支持。
项目成果
期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
On the uncertainties of results derived from H i spectral line stacking experiments
论哈伊谱线叠加实验结果的不确定性
- DOI:10.1093/mnras/stz1178
- 发表时间:2019
- 期刊:
- 影响因子:4.8
- 作者:Elson, E C;Baker, A J;Blyth, S L
- 通讯作者:Blyth, S L
The RESOLVE and ECO Gas in Galaxy Groups Initiative: The Group Finder and the Group H i–Halo Mass Relation
- DOI:10.3847/1538-4357/acefd4
- 发表时间:2023-10
- 期刊:
- 影响因子:0
- 作者:Z. L. Hutchens;S. Kannappan;A. Berlind;Mehnaaz Asad;K. Eckert;David V. Stark;Derrick S. Carr;Ella R. Castelloe;Andrew J. Baker;Kelley M. Hess;A. Moffett;M. Norris;D. Croton
- 通讯作者:Z. L. Hutchens;S. Kannappan;A. Berlind;Mehnaaz Asad;K. Eckert;David V. Stark;Derrick S. Carr;Ella R. Castelloe;Andrew J. Baker;Kelley M. Hess;A. Moffett;M. Norris;D. Croton
A new technique to isolate kinematically anomalous gas in HI data cubes
一种隔离 HI 数据立方体中运动学异常气体的新技术
- DOI:10.1093/mnras/stac3443
- 发表时间:2022
- 期刊:
- 影响因子:4.8
- 作者:Randriamiarinarivo, N;Elson, E C;Baker, A J
- 通讯作者:Baker, A J
OH Megamasers in H i Surveys: Forecasts and a Machine-learning Approach to Separating Disks from Mergers
- DOI:10.3847/1538-4357/abe944
- 发表时间:2021-02
- 期刊:
- 影响因子:0
- 作者:H. Roberts;J. Darling;A. Baker
- 通讯作者:H. Roberts;J. Darling;A. Baker
Looking at the Distant Universe with the MeerKAT Array: Discovery of a Luminous OH Megamaser at z > 0.5
用 MeerKAT 阵列观察遥远的宇宙:发现 z > 0.5 的发光 OH 巨脉泽
- DOI:10.3847/2041-8213/ac63b0
- 发表时间:2022
- 期刊:
- 影响因子:0
- 作者:Glowacki, Marcin;Collier, Jordan D.;Kazemi-Moridani, Amir;Frank, Bradley;Roberts, Hayley;Darling, Jeremy;Klöckner, Hans-Rainer;Adams, Nathan;Baker, Andrew J.;Bershady, Matthew
- 通讯作者:Bershady, Matthew
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Andrew Baker其他文献
Investigating the immediate and long-term effects of job stressors on frontline service employees
调查工作压力源对一线服务员工的直接和长期影响
- DOI:
- 发表时间:
2011 - 期刊:
- 影响因子:0
- 作者:
Anita Whiting;Naveen Donthu;Andrew Baker - 通讯作者:
Andrew Baker
The Reflective Online Searching Skills (ROSS) Environment: embedding information literacy into student learning through an online environment
反思性在线搜索技能(ROSS)环境:通过在线环境将信息素养融入学生学习中
- DOI:
- 发表时间:
2008 - 期刊:
- 影响因子:0
- 作者:
Helen Partridge;Sylvia Lauretta Edwards;Andrew Baker;Lynn M. McAllister - 通讯作者:
Lynn M. McAllister
Quality of life measures in older adults after traumatic brain injury: a systematic review
- DOI:
10.1007/s11136-019-02297-4 - 发表时间:
2019-09-14 - 期刊:
- 影响因子:2.700
- 作者:
Cindy Hunt;Shatabdy Zahid;Naomi Ennis;Alicja Michalak;Cheryl Masanic;Chantal Vaidyanath;Shree Bhalerao;Michael D. Cusimano;Andrew Baker - 通讯作者:
Andrew Baker
MANGANESE-ENHANCED T1MAPPING FOR THE DETECTION OF VIABLE AND STUNNED MYOCARDIUM FOLLOWING MYOCARDIAL INFARCTION
- DOI:
10.1016/s0735-1097(20)32194-x - 发表时间:
2020-03-24 - 期刊:
- 影响因子:
- 作者:
Nick Spath;Nick Spath;Giorgos Papanastasiou;Trisha Singh;Andrew Baker;Rob Janiczek;Gerry McCann;Marc Dweck;David E. Newby;Scott Semple - 通讯作者:
Scott Semple
Primary intraosseous squamous cell carcinoma: A rare malignancy of the mandible
- DOI:
10.1016/j.adoms.2021.100063 - 发表时间:
2021-04-01 - 期刊:
- 影响因子:
- 作者:
Aya AL-Harbawee;Manish Mair;Kartic Rajaram;Andrew Baker;Phil Da Forno - 通讯作者:
Phil Da Forno
Andrew Baker的其他文献
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{{ truncateString('Andrew Baker', 18)}}的其他基金
Activation of long non-coding RNA by a gene therapy CRISPR/Cas9 approach to prevent vein graft failure
通过基因治疗 CRISPR/Cas9 方法激活长非编码 RNA 以预防静脉移植失败
- 批准号:
EP/X024563/1 - 财政年份:2023
- 资助金额:
$ 33.69万 - 项目类别:
Research Grant
LADUMA: Reaching the Highest Redshifts with the Deepest HI Survey
LADUMA:通过最深入的 HI 调查达到最高的红移
- 批准号:
2308161 - 财政年份:2023
- 资助金额:
$ 33.69万 - 项目类别:
Standard Grant
Collaborative Research: Investigating the genomic basis of key performance traits to quantify the evolutionary potential of coral populations under climate change
合作研究:研究关键性能特征的基因组基础,以量化气候变化下珊瑚种群的进化潜力
- 批准号:
2023155 - 财政年份:2021
- 资助金额:
$ 33.69万 - 项目类别:
Standard Grant
Collaborative Research: Assessing the changing symbiotic milieu on Caribbean coral reefs under climate change: magnitude, tradeoffs, interventions, and implications
合作研究:评估气候变化下加勒比珊瑚礁共生环境的变化:幅度、权衡、干预措施和影响
- 批准号:
1851392 - 财政年份:2019
- 资助金额:
$ 33.69万 - 项目类别:
Continuing Grant
REU Site: Physics and Astronomy Research at Rutgers
REU 网站:罗格斯大学物理和天文学研究
- 批准号:
1560077 - 财政年份:2016
- 资助金额:
$ 33.69万 - 项目类别:
Continuing Grant
Adenovirus and coagulation factor interactions and the impact on virus stability and utility for gene therapy
腺病毒和凝血因子的相互作用以及对病毒稳定性和基因治疗效用的影响
- 批准号:
BB/L027933/1 - 财政年份:2015
- 资助金额:
$ 33.69万 - 项目类别:
Research Grant
Adenovirus and coagulation factor interactions and the impact on virus stability and utility for gene therapy
腺病毒和凝血因子的相互作用以及对病毒稳定性和基因治疗效用的影响
- 批准号:
BB/L027933/2 - 财政年份:2015
- 资助金额:
$ 33.69万 - 项目类别:
Research Grant
RAPID: Collaborative Research: Are Eastern Tropical Pacific reefs becoming more resilient to ENSO?
RAPID:合作研究:东部热带太平洋珊瑚礁对 ENSO 的抵抗力是否变得更强?
- 批准号:
1447306 - 财政年份:2014
- 资助金额:
$ 33.69万 - 项目类别:
Standard Grant
New insights into the response of reef corals to climate change using the symbiont to host cell ratio as a metric of bleaching susceptibility
使用共生体与宿主细胞的比率作为白化敏感性的指标,对珊瑚礁珊瑚对气候变化的反应有了新的见解
- 批准号:
1358699 - 财政年份:2014
- 资助金额:
$ 33.69万 - 项目类别:
Standard Grant
TRANSLATING HUMAN EMBRYONIC STEM CELL-DERIVED ENDOTHELIAL CELL THERAPY TO THE CLINIC
将人类胚胎干细胞衍生的内皮细胞疗法转化为临床
- 批准号:
MR/K00719X/1 - 财政年份:2013
- 资助金额:
$ 33.69万 - 项目类别:
Research Grant
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