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Proceedings Paper

The habitable-zone planet finder: a stabilized fiber-fed NIR spectrograph for the Hobby-Eberly Telescope
Author(s): Suvrath Mahadevan; Lawrence Ramsey; Chad Bender; Ryan Terrien; Jason T. Wright; Sam Halverson; Fred Hearty; Matt Nelson; Adam Burton; Stephen Redman; Steven Osterman; Scott Diddams; James Kasting; Michael Endl; Rohit Deshpande
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Paper Abstract

We present the scientific motivation and conceptual design for the recently funded Habitable-zone Planet Finder (HPF), a stabilized fiber-fed near-infrared (NIR) spectrograph for the 10 meter class Hobby-Eberly Telescope (HET) that will be capable of discovering low mass planets around M dwarfs. The HPF will cover the NIR Y and J bands to enable precise radial velocities to be obtained on mid M dwarfs, and enable the detection of low mass planets around these stars. The conceptual design is comprised of a cryostat cooled to 200K, a dual fiber-feed with a science and calibration fiber, a gold coated mosaic echelle grating, and a Teledyne Hawaii-2RG (H2RG) *NIR detector with a 1.7μm cutoff. A uranium-neon hollow-cathode lamp is the baseline wavelength calibration source, and we are actively testing laser frequency combs to enable even higher radial velocity precision. We will present the overall instrument system design and integration with the HET, and discuss major system challenges, key choices, and ongoing research and development projects to mitigate risk. We also discuss the ongoing process of target selection for the HPF survey.

Paper Details

Date Published: 24 September 2012
PDF: 14 pages
Proc. SPIE 8446, Ground-based and Airborne Instrumentation for Astronomy IV, 84461S (24 September 2012); doi: 10.1117/12.926102
Show Author Affiliations
Suvrath Mahadevan, The Pennsylvania State Univ. (United States)
Lawrence Ramsey, The Pennsylvania State Univ. (United States)
Chad Bender, The Pennsylvania State Univ. (United States)
Ryan Terrien, The Pennsylvania State Univ. (United States)
Jason T. Wright, The Pennsylvania State Univ. (United States)
Sam Halverson, The Pennsylvania State Univ. (United States)
Fred Hearty, Univ. of Virginia (United States)
Matt Nelson, Univ. of Virginia (United States)
Adam Burton, Univ. of Virginia (United States)
Stephen Redman, National Institute of Standards and Technology (United States)
Steven Osterman, Univ. of Colorado at Boulder (United States)
Scott Diddams, National Institute of Standards and Technology (United States)
James Kasting, The Pennsylvania State Univ. (United States)
Michael Endl, McDonald Observatory, The Univ. of Texas at Austin (United States)
Rohit Deshpande, The Pennsylvania State Univ. (United States)


Published in SPIE Proceedings Vol. 8446:
Ground-based and Airborne Instrumentation for Astronomy IV
Ian S. McLean; Suzanne K. Ramsay; Hideki Takami, Editor(s)

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