主持人：刘四明教授
时间：2024年12月17日（星期二）上午10：30
地点：犀浦校区2教2539会议室
Title:Cosmological principle, dark energy and interstellar molecules
主讲人：杨晓峰研究员
杨晓峰，2006东北林业大学物理学学士，2012中国科学院天文学博士，2018意大利罗马大学物理学博士，IAU会员，QRL编辑，ATI青年编委。2016以中科院/候选人入职中科院新疆天文台研究员，2019在北京通过择优答辩。研究涉及宇宙大尺度结构、星系宇宙学和射电天文观测。
讲座摘要：
The precisevalidity of cosmological principle and general relativity is the cornerstone of the standard model of modern cosmology (ΛCDM) and is thelogical presupposition for the existence of dark energy. Cosmologists usuallyassumed that the general relativity is the perfect law of gravity from small to large scales, which has been tested by many tests in Solar system and a few cosmological tests. The cosmological principle assumes that the universe is homogeneous and isotropic on a sufficiently large scale.However,several possible challenges to cosmological principle was reported in recent years. In this talk, we will introduce our progresses on the tests of cosmological principle and related works on the models and properties of dark energy, which is the main explanation for cosmic acceleration. At the same time, we will present our recent works on the observations of interstellar molecules, which is the prelude of origin of possible extraterrestrial life.
