In May 2007, the young (16 million year) star 1SWASP J140747.93-394542.6 ("J1407") underwent a complex series of eclipses that lasted 56 days, during which time it showed rapid variations of up to 50% in times of less than four hours. After ruling out other plausible alternatives, we conclude that there is an unseen secondary companion, J1407b, which hosts a giant ring system that fills a significant fraction of the Hill sphere. We present our exoring model, our search for J1407b, and discuss the future prospects for finding more of these systems in archival data.
European Planetary Science Congress
- Pub Date:
- October 2015