Updates to and Features of the Dark Energy Survey Gravitational Wave - PowerPoint PPT Presentation

Nov 16, 2022 •219 likes •339 views

Updates to and Features of the Dark Energy Survey Gravitational Wave Collaboration Data Pipeline Nora Field Sherman SIST/GEM Final Presentations 5 August 2019 Outline Science Motivation The Dark Energy Camera DESGW Data Pipeline

Updates to and Features of the Dark Energy Survey Gravitational Wave Collaboration Data Pipeline Nora Field Sherman SIST/GEM Final Presentations 5 August 2019
Outline • Science Motivation • The Dark Energy Camera • DESGW Data Pipeline • Updates and Improvements to the Pipeline 2 02.08.2019 Nora F. Sherman | SIST Final Presentation
Dark Energy and 𝑰 𝟏 • The Universe undergoes accelerated expansion – Dark Energy • Hubble Constant, 𝐼 0 – Current rate of expansion – SH0ES • Supernova data 𝑙𝑛 • 𝐼 0 > 70 𝑁𝑞𝑑 ∙ 𝑡 – Planck • CMB data 𝑙𝑛 • 𝐼 0 < 70 𝑁𝑞𝑑 ∙ 𝑡 – DESGW • Gravitational Waves • Electromagnetic Wav es https://arxiv.org/pdf/1710.05835.pdf 3 02.08.2019 Nora F. Sherman | SIST Final Presentation
Gravitational Waves and Kilonovae The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. I. Discovery of the Optical Counterpart Using the Dark Energy Camera 4 02.08.2019 Nora F. Sherman | SIST Final Presentation
DECam and the DES Footprint • Dark Energy Camera (DECam) – 62 CCDs – Views in several bands • i, g, z, Y, r – Located at Cerro Tololo Inter-American Observatory • Mounted on Victor M. Blanco Telescope https://www.darkenergysurvey.org/dr1-data-release-papers/ 5 02.08.2019 Nora F. Sherman | SIST Final Presentation
DESGW Data Pipeline 6 02.08.2019 Nora F. Sherman | SIST Final Presentation
Operating System Transferability • Fermilab will discontinue support for SL6 – SL7 to replace SL6 – Later CentOS 8 will replace SL7 • Not SL8 • Testing image processing pipeline on SL7 – Data from most recent binary neutron star merger 7 02.08.2019 Nora F. Sherman | SIST Final Presentation
Revolving Door • Load and offload templates based on visibility from DECam – Accommodate preexisting visibility restrictions of the telescope – Determine visibility throughout observations • Entire night, weeks in advance • Consideration of sunrise and sunset times at telescope • Store existing templates in localized area • Further considerations – Add log of templates per band – Improve visible range calculations – Implement air mass cuts 8 02.08.2019 Nora F. Sherman | SIST Final Presentation
Conclusion • Tested DESGW data pipeline for use on SL7 • Developed Revolving Door program 9 02.08.2019 Nora F. Sherman | SIST Final Presentation
Questions? Image Credit: DES Fermilab Photo Gallery unless otherwise credited 10 02.08.2019 Nora F. Sherman | SIST Final Presentation

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