Supernova Discoveries 2010-2011: Statistics and Trends

Understand

We have inspected all supernova discoveries reported during 2010 and 2011 (538 and 926 events, respectively).

• We examine the statistics of all discovered objects, as well as those of the subset of spectroscopically-confirmed events.
• In these two years we see the rise of wide-field non-targeted supernova surveys to prominence, with the largest numbers of events reported by the CRTS and PTF surveys (572 and 393 events in total respectively, contributing together 74% of all reported discoveries in 2011), followed by the integrated contribution of numerous amateurs (184 events).
• Among spectroscopically-confirmed events the PTF (393 events) leads, followed by CRTS (170 events), and amateur discoveries (144 events).