Eastbourne BN20 9HT
Title: The Structure and Development of Solar Active Regions – Professor Lucie Green (Royal Society University Research Fellow at Mullard Space Science Laboratory, University College London, co-presenter of the BBC’s Sky At Night programme and co-host of Astro Fest)
Sources of activity on the Sun
Early naked eye observations of the Sun revealed transient dark spots. With telescopes, these dark spots were shown to be features on the visible surface of the Sun and they became known as sunspots. Even today, over 400 years after the first sunspot drawings we remain captivated by these seemingly simple features. To truly understand sunspots though we need to use space telescopes that show us the million-degree gas that sits in the atmosphere above them. This talk will discuss the history of sunspot observations and reveal why we now prefer to call them active regions. These regions have a lively life; forming, evolving and decaying. They produce the biggest eruptions in the Solar System and the most energetic explosions. They dominate the character of the Sun and drive damaging space weather at Earth.
“My passion for understanding how the world works has been with me as long as I can remember. My love for space science is more recent. After completing my degree in physics with astrophysics at the University of Sussex I moved to UCL to study for a PhD in solar physics. I had been inspired to learn more about our local star after an undergraduate observing trip to the Crimea where I was able to use a solar telescope. I haven’t looked back since. After a few years away from research following my PhD working on outreach projects like the Faulkes Telescope Project I was awarded a Royal Society Dorothy Hodgkin Research Fellowship and came back to solar physics. I was then awarded a Fellowship from the Leverhulme Trust. Today, I am back at UCL where I now hold a Royal Society University Research Fellowship and work in the Solar Physics group.
At UCL we build instruments that are flown onboard international space missions and with that comes the responsibility to operate the instruments and ensure that they are getting the data that we need. My first experience of operations was at NASA’s Goddard Space Flight Center where I would go and take control of the CDS instrument that’s onboard the SOHO spacecraft. Once the Japanese Hinode launched, our involvement meant that I then started to do operations for the EIS instrument. First of all this meant travelling to Japan but later the system was set up so that we could carry out all the tasks remotely. Mission control for me became my front room! I am also interested in future missions to study the Sun and help define the science research that these missions will enable. The solar mission that my department is currently working on is the European Space Agency Solar Orbiter mission. Recently I have been working on a European Space Agency mission concept for a space weather satellite. This mission is now under study and, once launched, will provide us with advanced warning of space weather conditions at Earth.
During my PhD I started to become interested in discussing space science with people outside of my immediate research area. This has led me to organise local science festivals, hold open days, work with school students and adult learners and work in TV and radio. In 2009 I was the recipient of the Royal Society’s Kohn Award for excellence in public engagement with science and in 2017 I was awarded the Institute of Physics’ Lise Meitner Medal and Prize for distinguished contributions to public outreach. I am the Chief Stargazer at the Society for Popular Astronomy, co-Chair of Astrofest, Chair of Governors at the UCL Academy and am a member of the Advisory Board for the Science Museum.”