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

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

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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

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Nora Field Sherman SIST/GEM Final Presentations 5 August 2019

Updates to and Features of the Dark Energy Survey Gravitational Wave Collaboration Data Pipeline

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SLIDE 2
  • Science Motivation
  • The Dark Energy Camera
  • DESGW Data Pipeline
  • Updates and Improvements to the Pipeline

Outline

02.08.2019 Nora F. Sherman | SIST Final Presentation 2

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SLIDE 3
  • The Universe undergoes accelerated expansion

– Dark Energy

  • Hubble Constant, 𝐼0

– Current rate of expansion – SH0ES

  • Supernova data
  • 𝐼0 > 70

𝑙𝑛 𝑁𝑞𝑑 ∙ 𝑡

– Planck

  • CMB data
  • 𝐼0 < 70

𝑙𝑛 𝑁𝑞𝑑 ∙ 𝑡

– DESGW

  • Gravitational Waves
  • Electromagnetic Waves

Dark Energy and 𝑰𝟏

02.08.2019 Nora F. Sherman | SIST Final Presentation 3 https://arxiv.org/pdf/1710.05835.pdf

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SLIDE 4

Gravitational Waves and Kilonovae

02.08.2019 Nora F. Sherman | SIST Final Presentation 4

The Electromagnetic Counterpart of the Binary Neutron Star Merger LIGO/Virgo GW170817. I. Discovery

  • f the Optical Counterpart Using the

Dark Energy Camera

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SLIDE 5
  • 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

DECam and the DES Footprint

02.08.2019 Nora F. Sherman | SIST Final Presentation 5

https://www.darkenergysurvey.org/dr1-data-release-papers/

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SLIDE 6

DESGW Data Pipeline

02.08.2019 Nora F. Sherman | SIST Final Presentation 6

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SLIDE 7
  • 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

Operating System Transferability

02.08.2019 Nora F. Sherman | SIST Final Presentation 7

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Revolving Door

02.08.2019 Nora F. Sherman | SIST Final Presentation 8

  • Load and offload templates based on

visibility from DECam – Accommodate preexisting visibility restrictions of the telescope – Determine visibility throughout

  • bservations
  • 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

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Conclusion

02.08.2019 Nora F. Sherman | SIST Final Presentation 9

  • Tested DESGW data pipeline for use on SL7
  • Developed Revolving Door program
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Image Credit: DES Fermilab Photo Gallery unless otherwise credited

Questions?

02.08.2019 Nora F. Sherman | SIST Final Presentation 10