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COMPACT OBJECTS CAN BE VERY DIFFICULT TO DETECT WHEN THEY ARE NOT ACCRETING IN BINARY SYSTEMS. THEREFORE WE KNOW VERY LITTLE ABOUT SUCH OBJECTS AND LIKELY WOULD NOT NOTICE THEM EVEN IF THEY ARE VERY NEARBY. TWO MOST OBVIOUS EXAMPLES ARE VERY OLD ISOLATED NEUTRON STARS (THOSE THAT MAY BE BEYOND THE DEATH LINE AND HENCE LACKING PULSED RADIO OR GAMMA-RAY EMISSION) AND ISOLATED STELLAR-MASS BLACK HOLES (NONE HAVE BEEN IDENTIFIED SO FAR). THE GOAL OF THIS PROGRAM IS TO HUNT FOR SUCH OBJECTS USING THE RECENT MICROLENSING RESULTS FROM THE OGLE COLLABORATION AND PLACE CONSTRAINTS OF THE PHYSICAL PROCESSES ASSOCIATED WITH THESE OBJECTS.

$56,792FY2017National Aeronautics and Space AdministrationNASA

George Washington University (The)

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