Ultra-stable temperature and pressure control for the Habitable-zone Planet Finder spectrograph

Gudmundur K. Stefánsson, Frederick R. Hearty, Paul M. Robertson, Eric I. Levi, Suvrath Mahadevan, Tyler B. Anderson, Andrew J. Monson, Chad F. Bender, Samuel P. Halverson, Yiting Li, Lawrence W. Ramsey, Arpita Roy, Christian Schwab, Ryan C. Terrien, Matthew J. Nelson, Basil Blank

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

8 Scopus citations


We present recent long-term stability test results of the cryogenic Environmental Control System (ECS) for the Habitable zone Planet Finder (HPF), a near infrared ultra-stable spectrograph operating at 180 Kelvin. Exquisite temperature and pressure stability is required for high precision radial velocity (< 1m=s) instruments, as temperature and pressure variations can easily induce instrumental drifts of several tens-to-hundreds of meters per second. Here we present the results from long-term stability tests performed at the 180K operating temperature of HPF, demonstrating that the HPF ECS is stable at the 0:6mK level over 15-days, and <10 -7 Torr over months.

Original languageEnglish (US)
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy VI
EditorsLuc Simard, Christopher J. Evans, Hideki Takami
ISBN (Electronic)9781510601956
StatePublished - 2016
EventGround-Based and Airborne Instrumentation for Astronomy VI - Edinburgh, United Kingdom
Duration: Jun 26 2016Jun 30 2016

Publication series

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


OtherGround-Based and Airborne Instrumentation for Astronomy VI
Country/TerritoryUnited Kingdom

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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