A Study of the Faint Debris Remnant of Large Galaxy, Small Galaxy Interactions

星系可以通过吸积较小的邻近星系而变得更大。这类事件的碎片在不断增长的银河系的外围留下了恒星的痕迹。通过分析残骸，科学家们希望重建这些混乱的事件是如何展开的。碎片发出的星光在光学波长上极其微弱。直到最近，才有可能观测到这种低表面亮度的碎片。该团队将使用尖端理论和模拟来对碎片预期的结构类型进行分类。该团队的统计学家将分离出对重建最有帮助的结构。然后，观察者将寻找这种具有说服力的结构。高级团队成员将培训初级成员。在她访问全国的座谈会期间，国际和平协会将讨论少数民族在科学上面临的障碍。通过与一家非营利性组织的合作，该团队将与纽约市未得到充分服务的高中生进行接触。该团队将研究小型吸积星系被摧毁后留下在星系晕中的碎片结构。该团队的目标是(1)对预期结构进行理论估计，(2)创建模拟星系晕的合成调查资料库，以及(3)开发和测试这些结构的各种性质的统计测量。

Galaxies can grow bigger by accreting smaller, neighboring galaxies. The debris from such events leaves trails of stars in the outskirts of the growing galaxy. By analyzing the debris, scientists hope to reconstruct how these tumultuous events unfolded. The starlight from the debris is extremely faint at optical wavelengths. Observations of such low-surface-brightness debris have been possible only recently. The team will use cutting-edge theory and simulations to catalog the kinds of structures expected for the debris. The team's statistician will isolate the structures that help the most with the reconstructions. Observers will then look for such telltale structures. Senior team members will train junior members. During her colloquium visits nation-wide, the PI will discuss barriers facing minorities in science. Through a partnership with a non-profit, the team will engage with underserved high school students in New York City.The team will study debris structures left in galaxy halos by the destruction of small, accreted galaxies. The goals of the team are to (1) make theoretical estimates of the expected structures, (2) create libraries of synthetic surveys of simulated galaxy halos, and (3) develop and test statistical measures of various properties of the structures.