Extreme Astrophysics with next-generation radio telescopes

下一代射电望远镜的极限天体物理学

• 批准号: 2888209
• 金额: --
• 依托单位: University of Oxford
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2888209
• 关键词: Extreme; Astrophysics; next; generation; radio

In this project the student will be studying extreme astrophysical phenomena with radio telescopes. Detected radio emission usually arises from relavistic jets or more isotropic shocks triggered by accretion or explosive events. Radio studies uniquely allow us to measure and track the kinetic feedback from the events in ways which are impossible at other wavelengths, and can also offer extremely high angular resolutions for precise localisation and resolved imaging of sources. This is an area our group has worked on for many years, and in this project we plan to work with the multiple upgrade phases of the MeerKAT radio telescopes as it begins the process of transitioning to the mid-frequency component of the Square Kilometre Array.The first aspect of this is the use of the new S-band receivers (2-3 GHz band), which are still in a shared-risks mode. We already have an excellent data set for the student to start working on, and have some guaranteed time secured via an open time call for the coming year. We are also planning to work with our colleagues in the Max Planck Institute for Radio Astronomy in Bonn to look for transients in their proprietary galactic plane and galactic centre survey.Beyond use of the S-band, we plan to use 'MeerKAT+', which is an extension of the array with 12-16 new antennas on longer baselines, when this begins to become available, likely from late 2024.Our group are probably the work leaders combining observations of these phenomena and deep expertise with MeerKAT data, and we have an excellent track record in delivering strong PhD (DPhil) theses containing exciting and original research.

在这个项目中，学生将用射电望远镜研究极端的天体物理现象。探测到的无线电发射通常来自相对论性喷流或由吸积或爆炸事件触发的更各向同性的冲击。无线电研究独特地使我们能够以其他波长不可能的方式测量和跟踪事件的动力学反馈，并且还可以提供极高的角分辨率，用于源的精确定位和分辨成像。这是我们团队多年来一直致力于的一个领域，在这个项目中，我们计划与MeerKAT射电望远镜的多个升级阶段合作，因为它开始过渡到平方公里阵列的中频组件。第一个方面是使用新的S波段接收器（2-3 GHz波段），它们仍然处于风险分担模式。我们已经有了一个很好的数据集，让学生开始工作，并有一些保证的时间，通过开放时间为来年的呼吁。我们还计划与波恩马克斯普朗克射电天文研究所的同事合作，在他们专有的银河平面和银河中心调查中寻找瞬变。除了使用S波段，我们计划使用“MeerKAT+”，这是一个在更长基线上有12-16个新天线的阵列的扩展，当它开始可用时，我们的团队可能是将这些现象的观察和深厚的专业知识与MeerKAT数据相结合的工作领导者，我们在提供包含令人兴奋和原创研究的优秀博士（DPhil）论文方面有着出色的记录。