Bulletin of the American Physical Society
APS April Meeting 2019
Volume 64, Number 3
Saturday–Tuesday, April 13–16, 2019; Denver, Colorado
Session Q16: Neutron Star Merger Outflows and Prospects for Observing Them
10:45 AM–12:21 PM,
Monday, April 15, 2019
Sheraton Room: Grand Ballroom I
Sponsoring Units: DAP DGRAV
Chair: Carolyn Raithel, University of Arizona
Abstract: Q16.00008 : Wide-survey difference imaging in the Dark Energy Survey*
12:09 PM–12:21 PM
View Presentation Abstract
The difference imaging technique is applicable to a wide range of problems in time-domain astronomy, such as supernovae studies, transient and moving object searches, and optical followup of gravitational wave triggers. The technique involves subtracting template images from search images in order to identify any point sources in the search images that are not present in the templates. The Dark Energy Survey (DES) normally employs the technique in its supernova program; we here apply it to approximately 6500 images in four filters taken during the sixth DES observing season in 2018-2019. We will briefly review the difference imaging technique and the challenges in extending it to the wide survey program before concluding with a first look at results from the final DES observing season.
*Funding for the DES Projects has been provided by the DOE and NSF(USA), MEC/MICINN/MINECO(Spain), STFC(UK), HEFCE(UK). NCSA(UIUC), KICP(U. Chicago), CCAPP(Ohio State), MIFPA(Texas A&M), CNPQ, FAPERJ, FINEP (Brazil), DFG(Germany) and the Collaborating Institutions in the Dark Energy Survey.
The American Physical Society (APS) is a non-profit membership organization working to advance the knowledge of physics.
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