Testing the Lambda Cold Dark Matter Model with Dwarf Galaxies around the Milky Way and beyond

用银河系周围及更远的矮星系测试 Lambda 冷暗物质模型

• 批准号: 2001663
• 负责人: BURCIN MUTLU-PAKDIL
• 金额: $ 30万
• 依托单位: MUTLU BURCIN
• 依托单位国家: 美国
• 项目类别: Fellowship Award
• 财政年份: 2020
• 资助国家: 美国
• 起止时间: 2020-08-01 至 2022-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2001663&HistoricalAwards=false
• 关键词: Testing; Lambda; Cold; Dark; Matter

Burcin Mutlu is awarded an NSF Astronomy and Astrophysics Postdoctoral Fellowship to conduct a program of research and education at the University of Chicago. She will use new and existing observations to study faint small galaxies known as "dwarf galaxies" orbiting the Milky Way and nearby galaxies. Because the faintest dwarf galaxies contain the largest fraction of dark matter by mass, they are excellent laboratories in which to study the influence of dark matter on the formation and growth of galaxies. Results from this project will allow astronomers to understand how galaxies form and grow from the smallest structures. Along with this research, Mutlu will conduct a mentoring program to increase the retention of underrepresented students in science.This project will advance our understanding of how galaxies form at the lowest mass scales. By detecting nearly two dozen new dwarf galaxies, it will extend the census of the faintest dwarf satellite population of the Milky Way, as well as similar nearby galaxies, allowing an investigation of the properties of dwarf galaxies as a function of the environment and primary halo mass. Observational trends from this study would allow astronomers to assess whether the Lambda Cold Dark Matter model holds at the lowest mass scales, and whether a more detailed treatment of baryonic physics is required in the model.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.

Burcin Mutlu被授予NSF天文学和天体物理学博士后奖学金，在芝加哥大学进行研究和教育计划。 她将利用新的和现有的观测结果来研究围绕银河系和附近星系运行的被称为“矮星系”的微弱小星系。 由于最暗的矮星系包含最大比例的暗物质，它们是研究暗物质对星系形成和生长的影响的绝佳实验室。 该项目的结果将使天文学家了解星系如何从最小的结构形成和发展。 沿着这项研究，Mutlu将开展一项指导计划，以提高科学领域代表性不足的学生的保留率。该项目将促进我们对星系如何在最低质量尺度下形成的理解。 通过探测近20多个新的矮星系，它将扩大对银河系最微弱的矮卫星群以及类似的邻近星系的普查，从而可以调查矮星系作为环境和初级晕质量函数的特性。 这项研究的观测趋势将使天文学家能够评估拉姆达冷暗物质模型是否在最低质量尺度下成立，以及模型中是否需要更详细的重子物理处理。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

Evidence for Ultra-diffuse Galaxy Formation through Tidal Heating of Normal Dwarfs

• DOI: 10.3847/1538-4357/ac0975
• 发表时间: 2021-04
• 期刊: The Astrophysical Journal
• 作者: Michael G. Jones;P. Bennet;B. Mutlu-Pakdil;D. Sand;K. Spekkens;D. Crnojević;A. Karunakaran;D. Z

Hubble Space Telescope Observations of Two Faint Dwarf Satellites of Nearby LMC Analogs from MADCASH*

哈勃太空望远镜对来自 MADCASH* 附近 LMC 类似物的两颗微弱矮卫星的观测

• DOI: 10.3847/1538-4357/abe040
• 发表时间: 2021
• 期刊: The Astrophysical Journal
• 作者: Carlin, Jeffrey L.;Mutlu-Pakdil, Burçin;Crnojević, Denija;Garling, Christopher T.;Karunakaran, Ananthan;Peter, Annika H.;Tollerud, Erik;Forbes, Duncan A.;Hargis, Jonathan R.;Lim, Sungsoon
• 通讯作者: Lim, Sungsoon

H i properties of satellite galaxies around local volume hosts

本地体积宿主周围卫星星系的 H 属性

• DOI: 10.1093/mnras/stac2329
• 发表时间: 2022
• 期刊: Monthly Notices of the Royal Astronomical Society
• 影响因子: 4.8
• 作者: Karunakaran, Ananthan;Spekkens, Kristine;Carroll, Rhys;Sand, David J.;Bennet, Paul;Crnojević, Denija;Jones, Michael G.;Mutlu-Pakdıl, Burçın
• 通讯作者: Mutlu-Pakdıl, Burçın