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

9 Scopus citations

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
CountryUnited States
CityAustin
Period6/10/186/13/18

All Science Journal Classification (ASJC) codes

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

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