From: Frank Masci Subject: Baades Window Date: April 14, 2014 at 3:28:36 PM PDT To: Roc Cutri Cc: Carl Grillmair Roc - Finally got to this. I made some DCON differences between cryo and neowiser of a one sq. degree region centered in Baade’s window. The W2 difference is better than in W1. The W1 PSFs appear harder to match in such a confused field. More tuning is needed here. Here’s a side-by-side comparison of the reference-image (cryo) and difference (neowiser - cryo): http://wise2.ipac.caltech.edu/proj/fmasci/neowiserdiffimg/BaadesBabeW2.jpg 356 reliable variable/transient candidates were extracted by the pipeline. No doubt, there are lots of asteroids in the mix. I wonder what those bright saturated sources (with diffraction spikes) are in the difference image. Let me know if you want the location of all products. If MaxWISE doesn’t happen, a project to uncover a large fraction of the hidden periodic variables is worth pursuing. Regards, Frank ------- From: Frank Masci Subject: Re: Baades Window Date: April 15, 2014 at 5:34:30 PM PDT To: Roc Cutri Cc: Carl Grillmair Here’s an overlay of the W2 diff image with variables from OGLE with I <= 13 mag. I had to use this limit due to shear numbers. Most of them are classified as some sort of LPV. A large fraction are too faint for WISE. Those with no OGLE counterparts (down to I=13) are good candidates for single-epoch transients, asteroids, or maybe just red variables with I > 13. http://wise2.ipac.caltech.edu/proj/fmasci/neowiserdiffimg/scimrefW2_ogle.jpg Regards, Frank