Bulletin of the American Physical Society
APS April Meeting 2016
Volume 61, Number 6
Saturday–Tuesday, April 16–19, 2016; Salt Lake City, Utah
Session U5: Computing Meets Experiment in GravityInvited
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Sponsoring Units: GGR DCOMP Chair: Deirdre Shoemaker, Georgia Institute of Technology Room: Ballroom D |
Monday, April 18, 2016 3:30PM - 4:06PM |
U5.00001: Computing in large scale experiments Invited Speaker: Ian Harry On September 14 2015 Advanced LIGO made the first observation of a gravitational-wave signal. It is expected that many more observations will be made in the coming years, providing a new way of observing the Universe. The analysis of LIGO data that enables such observations requires the use of numerous large-scale computing facilities around the world. In this talk we describe the computational challenges of searching for and inferring the physical parameters of gravitational-wave signals buried in data taken by gravitational-wave interferometers. We also discuss some of the most computationally expensive science targets for LIGO, describing how these are balanced against existing computational resources and innovative solutions to maximize the computing available to us. Finally, we explore how the computational requirements of gravitational-wave astronomy will evolve as the sensitivity, bandwidth and number of gravitational-wave observatories increases. [Preview Abstract] |
Monday, April 18, 2016 4:06PM - 4:42PM |
U5.00002: Numerical Relativity meets Data Analysis Invited Speaker: Patricia Schmidt Gravitational waveforms (GW) from coalescing black hole binaries obtained by Numerical Relativity (NR) play a crucial role in the construction and validation of waveform models used as templates in GW matched filter searches and parameter estimation. In previous efforts, notably the NINJA and NINJA-2 collaborations, NR groups and data analysts worked closely together to use NR waveforms as mock GW signals to test the search and parameter estimation pipelines employed by LIGO. Recently, however, NR groups have been able to simulate hundreds of different binary black holes systems. It is desirable to directly use these waveforms in GW data analysis, for example to assess systematic errors in waveform models, to test general relativity or to appraise the limitations of aligned-spin searches among many other applications. In this talk, I will introduce recent developments that aim to fully integrate NR waveforms into the data analysis pipelines through a standardized interface. I will highlight a number of select applications for this new infrastructure. [Preview Abstract] |
Monday, April 18, 2016 4:42PM - 5:18PM |
U5.00003: High performance computing in astroparticle physics: very-high-energy gamma-ray observations with imaging atmospheric Cherenkov telescopes Invited Speaker: Adam Otte |
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