24 July 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
Author Affiliations +
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.
© (2014) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Suvrath Mahadevan, Suvrath Mahadevan, Lawrence W. Ramsey, Lawrence W. Ramsey, Ryan Terrien, Ryan Terrien, Samuel Halverson, Samuel Halverson, Arpita Roy, Arpita Roy, Fred Hearty, Fred Hearty, Eric Levi, Eric Levi, Gudmundur Kari Stefansson, Gudmundur Kari Stefansson, Paul Robertson, Paul Robertson, Chad Bender, Chad Bender, Chris Schwab, Chris Schwab, Matt Nelson, Matt Nelson, } "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", Proc. SPIE 9147, Ground-based and Airborne Instrumentation for Astronomy V, 91471G (24 July 2014); doi: 10.1117/12.2056417; https://doi.org/10.1117/12.2056417
PROCEEDINGS
10 PAGES


SHARE
RELATED CONTENT


Back to Top