The Habitable-zone Planet Finder

a status update on the development of a stabilized fiber-fed near-infrared spectrograph for the for the Hobby-Eberly telescope

Suvrath Mahadevan, Lawrence W. Ramsey, Ryan Terrien, Sam Halverson, Arpita Roy, Fred Hearty, Eric Levi, Gudmundur Kari Stefansson, Paul Robertson, Chad Bender, Chris Schwab, Matt Nelson

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

44 Citations (Scopus)

Abstract

The Habitable-Zone Planet Finder is a stabilized, fiber-fed, NIR spectrograph being built for the 10m Hobby- Eberly telescope (HET) that will be capable of discovering low mass planets around M dwarfs. The optical design of the HPF is a white pupil spectrograph layout in a vacuum cryostat cooled to 180 K. The spectrograph uses gold-coated mirrors, a mosaic echelle grating, and a single Teledyne Hawaii-2RG (H2RG) NIR detector with a 1.7-micron cutoff covering parts of the information rich z, Y and J NIR bands at a spectral resolution of R∼50,000. The unique design of the HET requires attention to both near and far-field fiber scrambling, which we accomplish with double scramblers and octagonal fibers. In this paper we discuss and summarize the main requirements and challenges of precision RV measurements in the NIR with HPF and how we are overcoming these issues with technology, hardware and algorithm developments to achieve high RV precision and address stellar activity.

Original languageEnglish
Title of host publicationGround-Based and Airborne Instrumentation for Astronomy V
EditorsSuzanne K. Ramsay, Ian S. McLean, Hideki Takami
Place of PublicationWashington, DC
PublisherSPIE
Pages91471G-1-91471G-10
Number of pages10
Volume9147
ISBN (Electronic)9780819496157
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventGround-Based and Airborne Instrumentation for Astronomy V - Montreal, Canada
Duration: 22 Jun 201426 Jun 2014

Other

OtherGround-Based and Airborne Instrumentation for Astronomy V
CountryCanada
CityMontreal
Period22/06/1426/06/14

    Fingerprint

Keywords

  • Exoplanets
  • fibers
  • instrumentation
  • modal noise
  • near-infrared spectrograph design
  • scrambling
  • spectroscopy

Cite this

Mahadevan, S., Ramsey, L. W., Terrien, R., Halverson, S., Roy, A., Hearty, F., ... Nelson, M. (2014). The Habitable-zone Planet Finder: a status update on the development of a stabilized fiber-fed near-infrared spectrograph for the for the Hobby-Eberly telescope. In S. K. Ramsay, I. S. McLean, & H. Takami (Eds.), Ground-Based and Airborne Instrumentation for Astronomy V (Vol. 9147, pp. 91471G-1-91471G-10). [91471G] Washington, DC: SPIE. https://doi.org/10.1117/12.2056417