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The Habitable-Zone Planet Finder: Improved flux image generation algorithms for H2RG up-the-ramp data

  • J. P. Ninan
  • , Chad F. Bender
  • , Suvrath Mahadevan
  • , Eric B. Ford
  • , Andrew J. Monson
  • , Kyle F. Kaplan
  • , Ryan C. Terrien
  • , Arpita Roy
  • , Paul M. Robertson
  • , Shubham Kanodia
  • , Gudmundur K. Stefansson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Noise and stability of current state of the art near-infrared (NIR) array detectors are still substantially worse than optical science grade CCDs used in astronomy. Obtaining the maximum signal-to-noise ratio in flux image is important for many NIR instruments, as is stable well understood data reduction and extraction. The Habitable-zone Planet Finder (HPF) is a near-infrared ultra stable precision radial velocity (RV) spectrograph commissioned on 10-m Hobby-Eberly Telescope (HET), McDonald Observatory, Texas, USA. HPF uses a Teledyne H2RG array detector. In order to achieve the high-precision (∼ 1 m/s) RV measurements from the NIR spectrum of HPF's science target stars, it is vital to maximize the signal-to-noise ratio and to accurately propagate the uncertainties. Here we present the algorithms we have developed to significantly improve the quality of flux images calculated from the up-the-ramp readout mode of H2RG. The algorithms in the tool HxRGproc presented in this manuscript are used for HPF's bias noise removal, non-linearity correction, cosmic ray correction, slope/flux and variance image calculation.

Original languageEnglish (US)
Title of host publicationHigh Energy, Optical, and Infrared Detectors for Astronomy VIII
EditorsAndrew D. Holland, James Beletic
PublisherSPIE
ISBN (Print)9781510619715
DOIs
StatePublished - 2018
EventHigh Energy, Optical, and Infrared Detectors for Astronomy VIII 2018 - Austin, United States
Duration: Jun 10 2018Jun 13 2018

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume10709
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Other

OtherHigh Energy, Optical, and Infrared Detectors for Astronomy VIII 2018
Country/TerritoryUnited States
CityAustin
Period6/10/186/13/18

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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