We’re really pleased to announce that our papers on the first Space Warps gravitational lens search on the Canada France Hawaii Telescope Legacy Survey (CFHTLS) have been accepted by the Monthly Notices of the Royal Astronomical Society, and will appear online and in print next month. In the meantime, you can find the accepted papers at Paper I & Paper II.
We’ve also resurrected the Space Warps site and are eagerly awaiting your classifications! You’ll be able to look at some CFHTLS images that have been seen before but we think are likely to contain interesting objects that didn’t quite make it into our final sample according to the analysis pipeline we ran while the project was live. Subsequently, Chris Davis, a research student who works with Phil at SLAC, put together an “offline” analysis that considers your classifications slightly differently. This threw up some new candidates that we would like your second opinion on. These may be false positives (i.e. objects that look like lenses but aren’t), difficult candidates (where you all didn’t agree), or genuinely missed candidates (not enough people viewed them). There’s an example of a missed simulated lens below. Check-out the Spotter’s Guide to refresh your memory on real lenses, false positives and artifacts. There are far fewer images this time round so you may find yourself out of subjects quickly.
We’ve also prepared a few articles from our home institutes that will come out today (Thursday 24th September) to mark the acceptance – a press release from Anu’s home institute in Tokyo, Kavli IPMU, a Symmetry article (online this afternoon) from SLAC, Phil’s home institute, and an Oxford Science Blog post from my home institute – so watch out for those!
We’re hoping that we may get to meet a few new lens spotters as a result of the articles, so please do help out any newbies you spot on Talk if you get the chance! Some of the images you see may already have been discussed on Talk as potential lenses as well, so please do add to those discussions too.