Time:2:30pm, May 14th(Sunday), 2017
Venue: Conference Room 404, Building of Science, West Campus
Lecturer: Jie Chen
Title:Solar Physics –Truth about the Sun
About the lecturer:
Jie Chen, Ph.D., Associate Researcher and master thesis supervisor, now works at the National Astronomical Observatories, Chinese Academy of Sciences. She obtained her Bachelor's degree in Physics in 2002 from Hebei Normal University, and her Ph.D. degree in 2007 from the National Astronomical Observatories, Chinese Academy of Sciences; and pursued her postdoctoral research at the Swedish Institute of Space Physics from 2008 to 2010. Since October, 2010, she has been engaged in research of Solar Physics and space weather at the National Astronomical Observatories. She hosted two National Natural Science Funds and one State Key Laboratory Open Fund, and participated in a number of National Natural Science Funds projects. Moreover, she has published many SCI articles in influential astronomy magazines.
About the Report:
The Sun is the closest star to us, and it almost provides all the energy we live by on the Earth. With the development of terrestrial telescopes and the launch of space satellites, humans have a more detailed understanding of the Sun. The solar atmosphere is not fixed, and all its regions are constantly moving and evolving. Solar storms, such as solar flares and coronal mass ejections, can occur on the sun and affect space satellites, radar, communications, power and other facilities; even pose a threat to the health of astronauts.
Solar Physics, a branch of Astrophysics, studies the nature and evolution of the Sun with Physics methods. The Sun is an ordinary star, and ways to study other stars are also useful to study the Sun. Its surface temperature, internal structure, and energy mechanisms can be calculated according to its quality, radius, luminosity and spectrum. However, Solar Physics also has its unique characteristics. The Sun's glare can be used to observe its surface details, to detect small photometric variations, to obtain some very important data (such as the distribution of sun magnetic field), and to seek the physical state and changes of surface active objects (such as sunspots, prominences and flares); direct feeling of the solar wind can help obtain precious information about the solar corona and interplanetary matter.
School of Science
May 11th, 2017
