Abstract Details
| Name: Ashish Mahabal Affiliation: Caltech Conference ID: ASI2016_888 Title : Deep stacked images and catalogs from Catalina Sky Survey Authors and Co-Authors : Varun Bhalerao (IUCAA), Akshat Singhal (IUCAA, Gran Sasso Science Institute), Sumeet Kulkarni (IUCAA, IISER), Andrew Drake, S G Dorgovski (Caltech), Eric Christensen, Steven Larson, Ed Beshore (LPL), Matthew Graham, C Donalek (Caltech), Ajit Kembhavi (IUCAA) Abstract Type : Poster Abstract Category : Instrumentation and Techniques Abstract : The 0.7m Schmidt telescope on Mt. Bigelow is part of the Catalina Sky Survey (CSS) and has been obtaining images with its current 2.8x2.8 sq. degrees CCD since 2003. It covers ~25000 sq. degrees hundreds of times, with a total of almost a million images. The images are currently served from IUCAA in the form of 5'x5' cutouts. The utility of these images - by themselves and in a stacked, co-added form - to current and future time-domain studies is immense. The stacking operation has recently been carried out. The stacked images go up to 3 magnitudes deeper. We present here the stacked image as well as the details of the process adopted, including the comparison of various state-of-the-art stacking softwares. From the resulting images we have extracted a deep catalog. While the catalog is not uniform, the depth makes it an excellent resource during transient searches including the ones for EM-counterparts of Gravitational Wave events. |