View here: Details for EX Lup outburst coverage requested
Abstract: A long-term campaign on the Young Stellar Object EX Lup, which is going into outburst. Photometry and spectroscopy are requested to observe the color evolution around the outburst.
Justification: These outbursts might be due to the same disk instability responsible for dwarf nova eruptions, which has never been properly tested by observing color evolution throughout the outburst.