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 contributionResearchpeer-review

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.

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

Infrared spectrographs
Hobby-Eberly Telescope
Spectrographs
Spectrograph
Planets
Telescopes
spectrographs
planets
Infrared
Update
Fiber
telescopes
fibers
Fibers
echelle gratings
stellar activity
Echelle
Cryostats
Optical design
Spectral resolution

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
Mahadevan, Suvrath ; Ramsey, Lawrence W. ; Terrien, Ryan ; Halverson, Sam ; Roy, Arpita ; Hearty, Fred ; Levi, Eric ; Stefansson, Gudmundur Kari ; Robertson, Paul ; Bender, Chad ; Schwab, Chris ; Nelson, Matt. / 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. Ground-Based and Airborne Instrumentation for Astronomy V. editor / Suzanne K. Ramsay ; Ian S. McLean ; Hideki Takami. Vol. 9147 Washington, DC : SPIE, 2014. pp. 91471G-1-91471G-10
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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.",
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Mahadevan, S, Ramsey, LW, Terrien, R, Halverson, S, Roy, A, Hearty, F, Levi, E, Stefansson, GK, Robertson, P, Bender, C, Schwab, C & 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 SK Ramsay, IS McLean & H Takami (eds), Ground-Based and Airborne Instrumentation for Astronomy V. vol. 9147, 91471G, SPIE, Washington, DC, pp. 91471G-1-91471G-10, Ground-Based and Airborne Instrumentation for Astronomy V, Montreal, Canada, 22/06/14. https://doi.org/10.1117/12.2056417

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

Ground-Based and Airborne Instrumentation for Astronomy V. ed. / Suzanne K. Ramsay; Ian S. McLean; Hideki Takami. Vol. 9147 Washington, DC : SPIE, 2014. p. 91471G-1-91471G-10 91471G.

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionResearchpeer-review

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Mahadevan S, Ramsey LW, Terrien R, Halverson S, Roy A, Hearty F et al. 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 Ramsay SK, McLean IS, Takami H, editors, Ground-Based and Airborne Instrumentation for Astronomy V. Vol. 9147. Washington, DC: SPIE. 2014. p. 91471G-1-91471G-10. 91471G https://doi.org/10.1117/12.2056417