Searches for new micro-quasars in the Galaxy

在银河系中寻找新的微类星体

• 批准号: 2753501
• 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: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2753501
• 关键词: Searches; new; micro; quasars; Galaxy

This project will make use of the vast numbers of light-curves collected by the Global Jet Watch's commensal cameras that deliver successive images (having fields of view several degrees on a side) in different filters while its mainstream spectroscopic data-gathering takes place. Astrometric registration will be applied to all images, and calibration of the light-curves will take place via differential photometry across the entire fields and modern digital-signal processing techniques will be employed to assess the nature of the variability of all sources. We are particularly looking for the signatures of micro-quasars such as the prototype SS433. All candidates that show hints of such signatures will be followed up via spectroscopy on the main Global Jet Watch telescopes, to confirm or refute their identity as newly discovered micro-quasars. Previous discoveries of micro-quasars have been serendipitous whereas this is a thoughtfully designed strategic methodology. This is a very novel approach because the data streams that make such a strategy possible have not been in place via any other means previously. The discovery of new micro-quasars is important because they are analogues of quasars in the distant universe yet evolve much more rapidly enabling the underlying astrophysical mechanisms that power them to be investigated much more deeply.

该项目将利用全球喷气式手表的共同摄像机收集的大量光曲线，这些摄像机在不同过滤器中提供了连续的图像（在一侧具有几个程度的视野），而其主流光谱数据收集则发生。天文登记将应用于所有图像，并将通过整个磁场的差分光度法进行光曲线的校准，并将采用现代数字信号处理技术来评估所有来源可变性的性质。我们尤其在寻找微观Quasars（例如原型SS433）的特征。所有显示此类签名提示的候选人将通过主要全球喷气式手表望远镜上的光谱进行跟踪，以确认或反驳其作为新发现的微Quasars的身份。以前对微观Quasars的发现是偶然的，而这是一种经过深思熟虑的战略方法。这是一种非常新颖的方法，因为使这种策略成为可能的数据流以前尚未通过其他任何方式实现。发现新的微分析很重要，因为它们是遥远宇宙中类星体的类似物，但进化得更快地使基本的天体物理机制能够对它们进行更深入的研究。