A pathfinder instrument for precision radial velocities in the near-infrared

L. W. Ramsey; J. Barnes; S. L. Redman; H. R.A. Jones; A. Wolszczan; S. Bongiorno; L. Engel; J. Jenkins

doi:10.1086/591233

A pathfinder instrument for precision radial velocities in the near-infrared

L. W. Ramsey, J. Barnes, S. L. Redman, H. R.A. Jones, A. Wolszczan, S. Bongiorno, L. Engel, J. Jenkins

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31 Scopus citations

Abstract

We have designed and tested an in-plane echelle spectrograph configured to investigate precision radial velocities from ground-based near-infrared observations. The spectrograph operates across the spectral range of 0.9-1.7 4 μm at a spectral resolution of R=50,000, and uses a liquid nitrogen-cooled HAWAII 1 K detector. Repeated measurements of the Earth's rotation via integrated sunlight with two different instrument arrangements in the near-infrared Y band have produced radial velocities with ∼10 m s ^-1 rms over a period of several hours. The most recent instrument configuration has achieved an unbinned rms of 7 nns^-1 and suggests that infrared radial velocity precisions may be able to approach those achieved at optical wavelengths.

Original language	English (US)
Pages (from-to)	887-894
Number of pages	8
Journal	Publications of the Astronomical Society of the Pacific
Volume	120
Issue number	870
DOIs	https://doi.org/10.1086/591233
State	Published - Aug 2008

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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10.1086/591233

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abstract = "We have designed and tested an in-plane echelle spectrograph configured to investigate precision radial velocities from ground-based near-infrared observations. The spectrograph operates across the spectral range of 0.9-1.7 4 μm at a spectral resolution of R=50,000, and uses a liquid nitrogen-cooled HAWAII 1 K detector. Repeated measurements of the Earth's rotation via integrated sunlight with two different instrument arrangements in the near-infrared Y band have produced radial velocities with ∼10 m s -1 rms over a period of several hours. The most recent instrument configuration has achieved an unbinned rms of 7 nns-1 and suggests that infrared radial velocity precisions may be able to approach those achieved at optical wavelengths.",

author = "Ramsey, {L. W.} and J. Barnes and Redman, {S. L.} and Jones, {H. R.A.} and A. Wolszczan and S. Bongiorno and L. Engel and J. Jenkins",

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T1 - A pathfinder instrument for precision radial velocities in the near-infrared

AU - Ramsey, L. W.

AU - Barnes, J.

AU - Redman, S. L.

AU - Jones, H. R.A.

AU - Wolszczan, A.

AU - Bongiorno, S.

AU - Engel, L.

AU - Jenkins, J.

PY - 2008/8

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A pathfinder instrument for precision radial velocities in the near-infrared

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