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NRAO Colloquium

Date: Fri. 13 Jan, 2017 11:00 am - 12:00 pm
Duration: 1 Hour
Location: NRAO

Anna Barnacka of the Center for Astrophysics at Harvard University is the guest speaker for the NRAO-Socorro colloquium. Her talk is titled “Resolving High Energy Universe Using Strong Gravitational Lensing.” Extragalactic jets are the largest particle accelerators in the universe, producing radiation ranging from radio wavelengths up to very high-energy gamma rays. Barnacka investigates gravitationally lensed blazars. Cosmic lenses magnify the emission and produce time delays between mirage images. These time delays depend on the position of the emitting regions in the source plane. Barnacka combines the precisely measured time delays at gamma rays, well-resolved positions of radio images, a model of the lens and the Hubble constant to elucidate the origin of gamma-ray flares from bright blazar B2 0218+35.  11 a.m. in the auditorium of the Domenici Science Operations Center (NRAO). 

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