Bulletin of the American Physical Society
APS April Meeting 2018
Volume 63, Number 4
Saturday–Tuesday, April 14–17, 2018; Columbus, Ohio
Session Q01: From Nuclear Security to Neutron-star MergersInvited Session
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Sponsoring Units: APS Chair: Enrico Ramirez-Ruiz, University of California, Santa Cruz Room: Union Ballroom BC |
Monday, April 16, 2018 8:30AM - 9:06AM |
Q01.00001: Physics and the Government: Navigating Science Policy and Nuclear Security Invited Speaker: Njema Frazier As more and more scientists choose non-traditional career paths, it is vital that the scientific community understand the role that science plays every sector: academia, industry, non-profit, and government. As a former Hill staffer with the US House of Representatives, Committee on Science and as a current physicist with the US Department of Energy, National Nuclear Security Administration (NNSA), Dr. Frazier will detail her knowledge and experience as a physicist and 20-year veteran of the Federal Government. She will share the ins and outs of science policy and share why it is critical to have the best and brightest scientists bring their skills and attributes to the political world. She will also cover the various roles for scientists and engineers in the Nuclear Weapons Complex, with a focus on the scientific organizations, capabilities, and functions in NNSA's Office of Defense Programs. In covering NNSA Defense Programs, it will become abundantly clear that the country requires scientists and engineers in every area, from programs within Headquarters Offices to National Laboratories and associated university laboratories and academic programs spread throughout the US. [Preview Abstract] |
Monday, April 16, 2018 9:06AM - 9:42AM |
Q01.00002: Testing General Relativity Using a Pulsar in a Triple System Invited Speaker: Anne Archibald The millisecond pulsar PSR J0337+1715 is in a 1.6-day orbit with an inner white dwarf companion, and the pair is in a 327-day orbit with an outer white dwarf companion. This hierarchical triple provides an excellent laboratory to test a key idea of Einstein's theory of gravity, the strong equivalence principle (SEP): do all objects, even those with strong gravity like neutron stars, fall the same way in the same gravitational field? Almost all alternative theories of gravity predict violations of the SEP at some level. We have carried out an intensive program of timing this pulsar, and we are able to perform a very sensitive test of the SEP. I will discuss our methods, our result, and its theoretical implications. [Preview Abstract] |
Monday, April 16, 2018 9:42AM - 10:18AM |
Q01.00003: Discovery, Characterization and Physics Implications of the electromagnetic signatures of GW170817 Invited Speaker: Marcelle Soares-Santos GW170817 was the first binary neutron star merger observed with gravitational wave detectors. The impact of this much anticipated event was greatly amplified by subsequent observation of their electromagnetic signatures in multiple wavelengths. In this talk, I present the discovery of the electromagnetic counterpart of GW170817 and discuss its astrophysical properties and physics implications. Such implications touch several fields, from astrophysics to cosmology. I also overview the landscape of this world-wide community enterprise and discuss prospects for future discoveries. [Preview Abstract] |
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