@inproceedings{c3c33575510a4c3699c8aa19eebf2a98,
title = "The Pathfinder testbed: Exploring techniques for achieving precision radial velocities in the near-infrared",
abstract = "The Penn State Pathfinder is a prototype warm fiber-fed Echelle spectrograph with a Hawaii-1 NIR detector that has already demonstrated 7-10 m/s radial velocity precision on integrated sunlight. The Pathfinder testbed was initially setup for the Gemini PRVS design study to enable a systematic exploration of the challenges of achieving high radial velocity precision in the near-infrared, as well as to test possible solutions to these calibration challenges. The current version of the Pathfinder has an R3 echelle grating, and delivers a resolution of R∼50,000 in the Y, J or H bands of the spectrum. We will discuss the on sky-performance of the Pathfinder during an engineering test run at the Hobby Eberly Telescope as well the results of velocity observations of M dwarfs. We will also discuss the unique calibration techniques we have explored, like Uranium-Neon hollow cathode lamps, notch filter, and modal noise mitigation to enable high precision radial velocity observation in the NIR. The Pathfinder is a prototype testbed precursor of a cooled high-resolution NIR spectrograph capable of high radial velocity precision and of finding low mass planets around mid-late M dwarfs.",
author = "Ramsey, {Larry W.} and Suvrath Mahadevan and Stephen Redman and Chad Bender and Arpita Roy and Stephanie Zonak and Steinn Sigurdsson and Alex Wolszczan",
year = "2010",
doi = "10.1117/12.857502",
language = "English (US)",
isbn = "9780819482259",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
number = "PART 1",
booktitle = "Ground-Based and Airborne Instrumentation for Astronomy III",
edition = "PART 1",
note = "Ground-Based and Airborne Instrumentation for Astronomy III ; Conference date: 27-06-2010 Through 02-07-2010",
}