from    
to    
search  

 


清华大学材料科学与工程研究院《材料科学论坛》:近红外二区磷光成像
清华大学材料科学与工程研究院《材料科学论坛》:四方Sr4Al2O7:一种用于制备高质量...
Massive Particles at Spatial Infinity
An update on holography of information (Review)
报告题目:
天文系Colloquium: A Song of Ice and Fire: the Fate of PlanetarySystemsAfter Stellar Death
 报告人:
Dr. Andrew Vanderburg (WISC)
Assistant Professor
报告时间:
2021-02-25 09:00
报告地点:
S727 or Online via Zoom (Meeting ID: 962 2957 0804 / PW: 202102)
主办单位:
天文系
  简介:

In the past 30 years, astronomers have discovered thousands of planets orbiting stars outside the solar system. Most of the exoplanets we know of today orbit stars that will eventually exhaust their nuclear fuel, expand into red giants, shed their outer layers, and contract into dense remnants called white dwarfs. How does the process of stellar death affect any orbiting planets in the system? I will review our knowledge of planets beyond the main sequence and discuss new insights gleaned from our discoveries of two very different systems: a disintegrating minor planet around WD 1145+017 and an intact giant planet candidate around WD 1856+534. I will conclude by discussing the prospects for habitability in white dwarf systems long after the host star's death and how with some luck, we may be able to test these ideas in the next decade.

BIO
Dr Andrew Vanderburg is an assistant professor of astronomy at the University of Wisconsin-Madison. Andrew received his PhD from Harvard University in 2017 and was a NASA Sagan postdoctoral fellow at the University of Texas before starting his position in Wisconsin in 2020.Andrew's research focuses on studying exoplanets, especially developing cutting-edge techniques and methods to discover new planets outside of our solar system. Eventually, he hopes to help answer questions like "Are the planets orbiting other stars throughout the galaxy anything like the worlds in our Solar system?" and "Could any of these planets be hospitable to life like the Earth?".

今日相关信息
[现代数学报告] Fourier Transform and ...
 
同类别相关信息
天文系 Colloquium: Exploring the ea...
天文系 Colloquium: Radio observatio...
天文系 Colloquium: Formation of Mer...
天文系 Colloquium: Cosmic neutrinos...
天文系 Colloquium: Thermal convecti...
学术活动