Developments in simulations and software for a near-infrared precision radial velocity spectrograph

Ryan C. Terrien, Chad F. Bender, Suvrath Mahadevan, Samuel P. Halverson, Lawrence W. Ramsey, Frederick R. Hearty

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

5 Scopus citations


We present developments in simulations and software for the Habitable Zone Planet Finder (HPF), an R~50,000 near-infrared cross-dispersed radial velocity spectrograph that will be used to search for planets around M dwarfs. HPF is fiber-fed, operates in the zYJ bands, and uses a 1.7 μm cutoff HAWAII-2RG (H2RG) NIR detector. We have constructed an end-to-end simulator that accepts as input a range of stellar models contaminated with telluric features and processes these through a simulated detector. This simulator accounts for the characteristics of the H2RG, including interpixel capacitance, persistence, nonlinearities, read noise, and other detector characteristics, as measured from our engineering-grade H2RG. It also implements realistic order curvature. We describe applications of this simulator including optimization of the fiber configuration at the spectrograph slit and selection of properties for a laser frequency comb calibration source. The simulator has also provided test images for development of the HPF survey extraction and RV analysis pipeline and we describe progress on this pipeline itself, which will implement optimal extraction, laser frequency comb and emission lamp wavelength calibration, and cross-correlation based RV measurement.

Original languageEnglish (US)
Title of host publicationSoftware and Cyberinfrastructure for Astronomy III
ISBN (Print)9780819496201
StatePublished - 2014
EventSoftware and Cyberinfrastructure for Astronomy III - Montreal, QC, Canada
Duration: Jun 22 2014Jun 26 2014

Publication series

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


OtherSoftware and Cyberinfrastructure for Astronomy III
CityMontreal, QC

All Science Journal Classification (ASJC) codes

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


Dive into the research topics of 'Developments in simulations and software for a near-infrared precision radial velocity spectrograph'. Together they form a unique fingerprint.

Cite this