First calibration and visible wavelength observations of Khayyam, a tunable spatial heterodyne spectroscopy (SHS)

Sona Hosseini; Walter Harris

doi:10.1117/12.2055862

First calibration and visible wavelength observations of Khayyam, a tunable spatial heterodyne spectroscopy (SHS)

Sona Hosseini, Walter Harris

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

4 Scopus citations

Abstract

We describe results from a new instrument-telescope configuration that combines all of the capabilities necessary to obtain high resolving power visible band spectra of diffuse targets from small aperture on-axis telescopes where significant observing time can be obtained. This instrument, Khayyam, is a tunable all-reflective spatial heterodyne spectrometer (TSHS) that is mounted to a fixed focal plane shared by the 0.6m Coude auxiliary telescope on Mt. Hamilton, CA. Khayyam has up to 55 arcsec input field of view, resolving power up to 176000, and a tunable bandpass covering (triangle)λ_B < 100nm. Khayyam is being field tested to study spatially extended astronomical targets where high resolving power is necessary to separate multimodal signals, crowded molecular bands, and to sample low (<10 km/s) velocities at rapid temporal cadence. Here we will discuss the design considerations going into this new system, its installation, testing of the interferometer-telescope combination, the first science target observations and future plans.

Original language	English (US)
Title of host publication	Ground-Based and Airborne Instrumentation for Astronomy V
Editors	Suzanne K. Ramsay, Ian S. McLean, Hideki Takami
Publisher	SPIE
ISBN (Electronic)	9780819496157
DOIs	https://doi.org/10.1117/12.2055862
State	Published - 2014
Event	Ground-Based and Airborne Instrumentation for Astronomy V - Montreal, Canada Duration: Jun 22 2014 → Jun 26 2014

Publication series

Name	Proceedings of SPIE - The International Society for Optical Engineering
Volume	9147
ISSN (Print)	0277-786X
ISSN (Electronic)	1996-756X

Other

Other	Ground-Based and Airborne Instrumentation for Astronomy V
Country/Territory	Canada
City	Montreal
Period	6/22/14 → 6/26/14

Keywords

SHS
Tunable Spatial Heterodyne Spectrometer
extended targets
interferometry
spectrometry

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Computer Science Applications
Applied Mathematics
Electrical and Electronic Engineering

Access to Document

10.1117/12.2055862

Cite this

Hosseini, S., & Harris, W. (2014). First calibration and visible wavelength observations of Khayyam, a tunable spatial heterodyne spectroscopy (SHS). In S. K. Ramsay, I. S. McLean, & H. Takami (Eds.), Ground-Based and Airborne Instrumentation for Astronomy V Article 91478L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9147). SPIE. https://doi.org/10.1117/12.2055862

First calibration and visible wavelength observations of Khayyam, a tunable spatial heterodyne spectroscopy (SHS). / Hosseini, Sona; Harris, Walter.
Ground-Based and Airborne Instrumentation for Astronomy V. ed. / Suzanne K. Ramsay; Ian S. McLean; Hideki Takami. SPIE, 2014. 91478L (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 9147).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Hosseini, S & Harris, W 2014, First calibration and visible wavelength observations of Khayyam, a tunable spatial heterodyne spectroscopy (SHS). in SK Ramsay, IS McLean & H Takami (eds), Ground-Based and Airborne Instrumentation for Astronomy V., 91478L, Proceedings of SPIE - The International Society for Optical Engineering, vol. 9147, SPIE, Ground-Based and Airborne Instrumentation for Astronomy V, Montreal, Canada, 6/22/14. https://doi.org/10.1117/12.2055862

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AB - We describe results from a new instrument-telescope configuration that combines all of the capabilities necessary to obtain high resolving power visible band spectra of diffuse targets from small aperture on-axis telescopes where significant observing time can be obtained. This instrument, Khayyam, is a tunable all-reflective spatial heterodyne spectrometer (TSHS) that is mounted to a fixed focal plane shared by the 0.6m Coude auxiliary telescope on Mt. Hamilton, CA. Khayyam has up to 55 arcsec input field of view, resolving power up to 176000, and a tunable bandpass covering (triangle)λB < 100nm. Khayyam is being field tested to study spatially extended astronomical targets where high resolving power is necessary to separate multimodal signals, crowded molecular bands, and to sample low (<10 km/s) velocities at rapid temporal cadence. Here we will discuss the design considerations going into this new system, its installation, testing of the interferometer-telescope combination, the first science target observations and future plans.

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First calibration and visible wavelength observations of Khayyam, a tunable spatial heterodyne spectroscopy (SHS)

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