{"action":"created","issue":{"url":"https://api.github.com/repos/GalSim-developers/GalSim/issues/640","repository_url":"https://api.github.com/repos/GalSim-developers/GalSim","labels_url":"https://api.github.com/repos/GalSim-developers/GalSim/issues/640/labels{/name}","comments_url":"https://api.github.com/repos/GalSim-developers/GalSim/issues/640/comments","events_url":"https://api.github.com/repos/GalSim-developers/GalSim/issues/640/events","html_url":"https://github.com/GalSim-developers/GalSim/issues/640","id":56876661,"number":640,"title":"Chromatic Real Galaxy","user":{"login":"jmeyers314","id":3650485,"avatar_url":"https://avatars3.githubusercontent.com/u/3650485?v=3","gravatar_id":"","url":"https://api.github.com/users/jmeyers314","html_url":"https://github.com/jmeyers314","followers_url":"https://api.github.com/users/jmeyers314/followers","following_url":"https://api.github.com/users/jmeyers314/following{/other_user}","gists_url":"https://api.github.com/users/jmeyers314/gists{/gist_id}","starred_url":"https://api.github.com/users/jmeyers314/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jmeyers314/subscriptions","organizations_url":"https://api.github.com/users/jmeyers314/orgs","repos_url":"https://api.github.com/users/jmeyers314/repos","events_url":"https://api.github.com/users/jmeyers314/events{/privacy}","received_events_url":"https://api.github.com/users/jmeyers314/received_events","type":"User","site_admin":false},"labels":[{"id":486011055,"url":"https://api.github.com/repos/GalSim-developers/GalSim/labels/chromatic","name":"chromatic","color":"a455a9","default":false},{"id":83487880,"url":"https://api.github.com/repos/GalSim-developers/GalSim/labels/feature%20request","name":"feature request","color":"d4c5f9","default":false},{"id":486014137,"url":"https://api.github.com/repos/GalSim-developers/GalSim/labels/inputs","name":"inputs","color":"eeeeee","default":false}],"state":"closed","locked":false,"assignee":{"login":"jmeyers314","id":3650485,"avatar_url":"https://avatars3.githubusercontent.com/u/3650485?v=3","gravatar_id":"","url":"https://api.github.com/users/jmeyers314","html_url":"https://github.com/jmeyers314","followers_url":"https://api.github.com/users/jmeyers314/followers","following_url":"https://api.github.com/users/jmeyers314/following{/other_user}","gists_url":"https://api.github.com/users/jmeyers314/gists{/gist_id}","starred_url":"https://api.github.com/users/jmeyers314/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jmeyers314/subscriptions","organizations_url":"https://api.github.com/users/jmeyers314/orgs","repos_url":"https://api.github.com/users/jmeyers314/repos","events_url":"https://api.github.com/users/jmeyers314/events{/privacy}","received_events_url":"https://api.github.com/users/jmeyers314/received_events","type":"User","site_admin":false},"assignees":[{"login":"jmeyers314","id":3650485,"avatar_url":"https://avatars3.githubusercontent.com/u/3650485?v=3","gravatar_id":"","url":"https://api.github.com/users/jmeyers314","html_url":"https://github.com/jmeyers314","followers_url":"https://api.github.com/users/jmeyers314/followers","following_url":"https://api.github.com/users/jmeyers314/following{/other_user}","gists_url":"https://api.github.com/users/jmeyers314/gists{/gist_id}","starred_url":"https://api.github.com/users/jmeyers314/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/jmeyers314/subscriptions","organizations_url":"https://api.github.com/users/jmeyers314/orgs","repos_url":"https://api.github.com/users/jmeyers314/repos","events_url":"https://api.github.com/users/jmeyers314/events{/privacy}","received_events_url":"https://api.github.com/users/jmeyers314/received_events","type":"User","site_admin":false}],"milestone":{"url":"https://api.github.com/repos/GalSim-developers/GalSim/milestones/14","html_url":"https://github.com/GalSim-developers/GalSim/milestone/14","labels_url":"https://api.github.com/repos/GalSim-developers/GalSim/milestones/14/labels","id":2098931,"number":14,"title":"v1.5","description":"Issues that we expect to be included in version 1.5","creator":{"login":"rmjarvis","id":623887,"avatar_url":"https://avatars0.githubusercontent.com/u/623887?v=3","gravatar_id":"","url":"https://api.github.com/users/rmjarvis","html_url":"https://github.com/rmjarvis","followers_url":"https://api.github.com/users/rmjarvis/followers","following_url":"https://api.github.com/users/rmjarvis/following{/other_user}","gists_url":"https://api.github.com/users/rmjarvis/gists{/gist_id}","starred_url":"https://api.github.com/users/rmjarvis/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/rmjarvis/subscriptions","organizations_url":"https://api.github.com/users/rmjarvis/orgs","repos_url":"https://api.github.com/users/rmjarvis/repos","events_url":"https://api.github.com/users/rmjarvis/events{/privacy}","received_events_url":"https://api.github.com/users/rmjarvis/received_events","type":"User","site_admin":false},"open_issues":1,"closed_issues":42,"state":"open","created_at":"2016-10-28T04:07:35Z","updated_at":"2017-06-27T01:50:30Z","due_on":null,"closed_at":null},"comments":13,"created_at":"2015-02-06T22:24:16Z","updated_at":"2017-06-27T05:09:38Z","closed_at":"2017-06-27T01:50:30Z","body":"GalSim has both `RealGalaxy` objects, and `ChromaticObject`s, but doesn't have `ChromaticRealGalaxy` (yet!).\n\n@rmjarvis, @rmandelb, and I talked a bit about how one might take high-res HST images of a galaxy through 2+ filters, deconvolve the known (chromatic) HST PSF, and then reconvolve by a different chromatic PSF (to presumably less resolution than HST, c.f. `RealGalaxy`).  This would be especially helpful for studies of galaxies with color-gradients for LSST/Euclid/etc.\n\n[Semboloni++13](http://adsabs.harvard.edu/abs/2013MNRAS.432.2385S) section 5.2 equation 25 briefly lays this out for the case where the SED at each point in the galaxy is linear in wavelength.  We think we can generalize this to the case of generic SEDs, for instance, typical bulge and disk SEDs.\n\nThis issue is to develop the framework for a `ChromaticRealGalaxy` object.  For the moment, I think it's reasonable to limit the scope to just the framework.  In particular, this issue will not attempt to actually assemble a catalog of HST images and PSFs; we'll do that later, and in the meantime we can test with simulated GalSim images.\n"},"comment":{"url":"https://api.github.com/repos/GalSim-developers/GalSim/issues/comments/311254569","html_url":"https://github.com/GalSim-developers/GalSim/issues/640#issuecomment-311254569","issue_url":"https://api.github.com/repos/GalSim-developers/GalSim/issues/640","id":311254569,"user":{"login":"plazas","id":4008497,"avatar_url":"https://avatars0.githubusercontent.com/u/4008497?v=3","gravatar_id":"","url":"https://api.github.com/users/plazas","html_url":"https://github.com/plazas","followers_url":"https://api.github.com/users/plazas/followers","following_url":"https://api.github.com/users/plazas/following{/other_user}","gists_url":"https://api.github.com/users/plazas/gists{/gist_id}","starred_url":"https://api.github.com/users/plazas/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/plazas/subscriptions","organizations_url":"https://api.github.com/users/plazas/orgs","repos_url":"https://api.github.com/users/plazas/repos","events_url":"https://api.github.com/users/plazas/events{/privacy}","received_events_url":"https://api.github.com/users/plazas/received_events","type":"User","site_admin":false},"created_at":"2017-06-27T05:09:38Z","updated_at":"2017-06-27T05:09:38Z","body":"Nice!"}}
{"actor":{"display_login":"plazas"}}