The Science Performance of the Gemini High Resolution Optical Spectrograph

Alan W. McConnachie; Christian R. Hayes; J. Gordon Robertson; John Pazder; Michael Ireland; Greg Burley; Vladimir Churilov; Jordan Lothrop; Ross Zhelem; Venu Kalari; André Anthony; Gabriella Baker; Trystyn Berg; Edward L. Chapin; Timothy Chin; Adam Densmore; Ruben Diaz; Jennifer Dunn; Michael L. Edgar; Tony Farrell; Veronica Firpo; Javier Fuentes; Manuel Gomez-Jimenez; Tim Hardy; David Henderson; Alexis Hill; Kathleen Labrie; Jaclyn Jensen; Sam Lambert; Jon Lawrence; G. Scott Macdonald; Steven Margheim; Bryan Millar; Rolf Muller; Jon G. Nielsen; Gabriel Pérez; Carlos Quiroz; Roque Ruiz-Carmona; Kim M. Sebo; Federico Sestito; Kareleyne Silva; Chris Simpson; Greg Smith; Sudharshan Venkatesan; Fletcher Waller; Lewis Waller; Ivan Wevers; Kim A. Venn; Peter Young

doi:10.1088/1538-3873/ad1ed4

The Science Performance of the Gemini High Resolution Optical Spectrograph

Alan W. McConnachie, Christian R. Hayes, J. Gordon Robertson, John Pazder, Michael Ireland, Greg Burley, Vladimir Churilov, Jordan Lothrop, Ross Zhelem, Venu Kalari, André Anthony, Gabriella Baker, Trystyn Berg, Edward L. Chapin, Timothy Chin, Adam Densmore, Ruben Diaz, Jennifer Dunn, Michael L. Edgar, Tony FarrellVeronica Firpo, Javier Fuentes, Manuel Gomez-Jimenez, Tim Hardy, David Henderson, Alexis Hill, Kathleen Labrie, Jaclyn Jensen, Sam Lambert, Jon Lawrence, G. Scott Macdonald, Steven Margheim, Bryan Millar, Rolf Muller, Jon G. Nielsen, Gabriel Pérez, Carlos Quiroz, Roque Ruiz-Carmona, Kim M. Sebo, Federico Sestito, Kareleyne Silva, Chris Simpson, Greg Smith, Sudharshan Venkatesan, Fletcher Waller, Lewis Waller, Ivan Wevers, Kim A. Venn, Peter Young

School of Physics, Engineering & Computer Science

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Abstract

The Gemini High Resolution Optical Spectrograph (GHOST) is a fiber-fed spectrograph system on the Gemini South telescope that provides simultaneous wavelength coverage from 348 - 1061nm, and designed for optimal performance between 363 - 950nm. It can observe up to two objects simultaneously in a 7.5 arcmin diameter field of regard at R = 56,000 or a single object at R = 75,000. The spectral resolution modes are obtained by using integral field units to image slice a 1.2" aperture by a factor of five in width using 19 fibers in the high resolution mode and by a factor of three in width using 7 fibers in the standard resolution mode. GHOST is equipped with hardware to allow for precision radial velocity measurements, expected to approach meters per second precision. Here, we describe the basic design and operational capabilities of GHOST, and proceed to derive and quantify the key aspects of its on-sky performance that are of most relevance to its science users.

Original language	English
Article number	035001
Pages (from-to)	1-33
Number of pages	33
Journal	Publications of the Astronomical Society of the Pacific
Volume	136
Issue number	3
DOIs	https://doi.org/10.1088/1538-3873/ad1ed4
Publication status	Published - 7 Mar 2024

Keywords

astro-ph.IM

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10.1088/1538-3873/ad1ed4Licence: CC BY

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McConnachie, A. W., Hayes, C. R., Robertson, J. G., Pazder, J., Ireland, M., Burley, G., Churilov, V., Lothrop, J., Zhelem, R., Kalari, V., Anthony, A., Baker, G., Berg, T., Chapin, E. L., Chin, T., Densmore, A., Diaz, R., Dunn, J., Edgar, M. L., ... Young, P. (2024). The Science Performance of the Gemini High Resolution Optical Spectrograph. Publications of the Astronomical Society of the Pacific, 136(3), 1-33. Article 035001. https://doi.org/10.1088/1538-3873/ad1ed4

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title = "The Science Performance of the Gemini High Resolution Optical Spectrograph",

abstract = " The Gemini High Resolution Optical Spectrograph (GHOST) is a fiber-fed spectrograph system on the Gemini South telescope that provides simultaneous wavelength coverage from 348 - 1061nm, and designed for optimal performance between 363 - 950nm. It can observe up to two objects simultaneously in a 7.5 arcmin diameter field of regard at R = 56,000 or a single object at R = 75,000. The spectral resolution modes are obtained by using integral field units to image slice a 1.2{"} aperture by a factor of five in width using 19 fibers in the high resolution mode and by a factor of three in width using 7 fibers in the standard resolution mode. GHOST is equipped with hardware to allow for precision radial velocity measurements, expected to approach meters per second precision. Here, we describe the basic design and operational capabilities of GHOST, and proceed to derive and quantify the key aspects of its on-sky performance that are of most relevance to its science users. ",

keywords = "astro-ph.IM",

author = "McConnachie, {Alan W.} and Hayes, {Christian R.} and Robertson, {J. Gordon} and John Pazder and Michael Ireland and Greg Burley and Vladimir Churilov and Jordan Lothrop and Ross Zhelem and Venu Kalari and Andr{\'e} Anthony and Gabriella Baker and Trystyn Berg and Chapin, {Edward L.} and Timothy Chin and Adam Densmore and Ruben Diaz and Jennifer Dunn and Edgar, {Michael L.} and Tony Farrell and Veronica Firpo and Javier Fuentes and Manuel Gomez-Jimenez and Tim Hardy and David Henderson and Alexis Hill and Kathleen Labrie and Jaclyn Jensen and Sam Lambert and Jon Lawrence and Macdonald, {G. Scott} and Steven Margheim and Bryan Millar and Rolf Muller and Nielsen, {Jon G.} and Gabriel P{\'e}rez and Carlos Quiroz and Roque Ruiz-Carmona and Sebo, {Kim M.} and Federico Sestito and Kareleyne Silva and Chris Simpson and Greg Smith and Sudharshan Venkatesan and Fletcher Waller and Lewis Waller and Ivan Wevers and Venn, {Kim A.} and Peter Young",

year = "2024",

month = mar,

day = "7",

doi = "10.1088/1538-3873/ad1ed4",

language = "English",

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pages = "1--33",

journal = "Publications of the Astronomical Society of the Pacific",

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McConnachie, AW, Hayes, CR, Robertson, JG, Pazder, J, Ireland, M, Burley, G, Churilov, V, Lothrop, J, Zhelem, R, Kalari, V, Anthony, A, Baker, G, Berg, T, Chapin, EL, Chin, T, Densmore, A, Diaz, R, Dunn, J, Edgar, ML, Farrell, T, Firpo, V, Fuentes, J, Gomez-Jimenez, M, Hardy, T, Henderson, D, Hill, A, Labrie, K, Jensen, J, Lambert, S, Lawrence, J, Macdonald, GS, Margheim, S, Millar, B, Muller, R, Nielsen, JG, Pérez, G, Quiroz, C, Ruiz-Carmona, R, Sebo, KM, Sestito, F, Silva, K, Simpson, C, Smith, G, Venkatesan, S, Waller, F, Waller, L, Wevers, I, Venn, KA & Young, P 2024, 'The Science Performance of the Gemini High Resolution Optical Spectrograph', Publications of the Astronomical Society of the Pacific, vol. 136, no. 3, 035001, pp. 1-33. https://doi.org/10.1088/1538-3873/ad1ed4

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T1 - The Science Performance of the Gemini High Resolution Optical Spectrograph

AU - McConnachie, Alan W.

AU - Hayes, Christian R.

AU - Robertson, J. Gordon

AU - Pazder, John

AU - Ireland, Michael

AU - Burley, Greg

AU - Churilov, Vladimir

AU - Lothrop, Jordan

AU - Zhelem, Ross

AU - Kalari, Venu

AU - Anthony, André

AU - Baker, Gabriella

AU - Berg, Trystyn

AU - Chapin, Edward L.

AU - Chin, Timothy

AU - Densmore, Adam

AU - Diaz, Ruben

AU - Dunn, Jennifer

AU - Edgar, Michael L.

AU - Farrell, Tony

AU - Firpo, Veronica

AU - Fuentes, Javier

AU - Gomez-Jimenez, Manuel

AU - Hardy, Tim

AU - Henderson, David

AU - Hill, Alexis

AU - Labrie, Kathleen

AU - Jensen, Jaclyn

AU - Lambert, Sam

AU - Lawrence, Jon

AU - Macdonald, G. Scott

AU - Margheim, Steven

AU - Millar, Bryan

AU - Muller, Rolf

AU - Nielsen, Jon G.

AU - Pérez, Gabriel

AU - Quiroz, Carlos

AU - Ruiz-Carmona, Roque

AU - Sebo, Kim M.

AU - Sestito, Federico

AU - Silva, Kareleyne

AU - Simpson, Chris

AU - Smith, Greg

AU - Venkatesan, Sudharshan

AU - Waller, Fletcher

AU - Waller, Lewis

AU - Wevers, Ivan

AU - Venn, Kim A.

AU - Young, Peter

PY - 2024/3/7

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N2 - The Gemini High Resolution Optical Spectrograph (GHOST) is a fiber-fed spectrograph system on the Gemini South telescope that provides simultaneous wavelength coverage from 348 - 1061nm, and designed for optimal performance between 363 - 950nm. It can observe up to two objects simultaneously in a 7.5 arcmin diameter field of regard at R = 56,000 or a single object at R = 75,000. The spectral resolution modes are obtained by using integral field units to image slice a 1.2" aperture by a factor of five in width using 19 fibers in the high resolution mode and by a factor of three in width using 7 fibers in the standard resolution mode. GHOST is equipped with hardware to allow for precision radial velocity measurements, expected to approach meters per second precision. Here, we describe the basic design and operational capabilities of GHOST, and proceed to derive and quantify the key aspects of its on-sky performance that are of most relevance to its science users.

AB - The Gemini High Resolution Optical Spectrograph (GHOST) is a fiber-fed spectrograph system on the Gemini South telescope that provides simultaneous wavelength coverage from 348 - 1061nm, and designed for optimal performance between 363 - 950nm. It can observe up to two objects simultaneously in a 7.5 arcmin diameter field of regard at R = 56,000 or a single object at R = 75,000. The spectral resolution modes are obtained by using integral field units to image slice a 1.2" aperture by a factor of five in width using 19 fibers in the high resolution mode and by a factor of three in width using 7 fibers in the standard resolution mode. GHOST is equipped with hardware to allow for precision radial velocity measurements, expected to approach meters per second precision. Here, we describe the basic design and operational capabilities of GHOST, and proceed to derive and quantify the key aspects of its on-sky performance that are of most relevance to its science users.

KW - astro-ph.IM

U2 - 10.1088/1538-3873/ad1ed4

DO - 10.1088/1538-3873/ad1ed4

M3 - Article

SN - 0004-6280

VL - 136

SP - 1

EP - 33

JO - Publications of the Astronomical Society of the Pacific

JF - Publications of the Astronomical Society of the Pacific

IS - 3

M1 - 035001

ER -

The Science Performance of the Gemini High Resolution Optical Spectrograph

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