The Science Performance of the Gemini High Resolution Optical Spectrograph. (arXiv:2401.07452v1 [astro-ph.IM])

The Science Performance of the Gemini High Resolution Optical Spectrograph. (arXiv:2401.07452v1 [astro-ph.IM])
<a href="http://arxiv.org/find/astro-ph/1/au:+McConnachie_A/0/1/0/all/0/1">Alan W. McConnachie</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hayes_C/0/1/0/all/0/1">Christian R. Hayes</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Robertson_J/0/1/0/all/0/1">J. Gordon Robertson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Pazder_J/0/1/0/all/0/1">John Pazder</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ireland_M/0/1/0/all/0/1">Michael Ireland</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Burley_G/0/1/0/all/0/1">Greg Burley</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Churilov_V/0/1/0/all/0/1">Vladimir Churilov</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lothrop_J/0/1/0/all/0/1">Jordan Lothrop</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Zhelem_R/0/1/0/all/0/1">Ross Zhelem</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Kalari_V/0/1/0/all/0/1">Venu Kalari</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Anthony_A/0/1/0/all/0/1">André Anthony</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Baker_G/0/1/0/all/0/1">Gabriella Baker</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Berg_T/0/1/0/all/0/1">Trystyn Berg</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chapin_E/0/1/0/all/0/1">Edward L. Chapin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Chin_T/0/1/0/all/0/1">Timothy Chin</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Densmore_A/0/1/0/all/0/1">Adam Densmore</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Diaz_R/0/1/0/all/0/1">Ruben Diaz</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Dunn_J/0/1/0/all/0/1">Jennifer Dunn</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Edgar_M/0/1/0/all/0/1">Michael L. Edgar</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Farrell_T/0/1/0/all/0/1">Tony Farrell</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Firpo_V/0/1/0/all/0/1">Veronica Firpo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Fuentes_J/0/1/0/all/0/1">Javier Fuentes</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Gomez_Jimenez_M/0/1/0/all/0/1">Manuel Gomez-Jimenez</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hardy_T/0/1/0/all/0/1">Tim Hardy</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Henderson_D/0/1/0/all/0/1">David Henderson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Hill_A/0/1/0/all/0/1">Alexis Hill</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Labrie_K/0/1/0/all/0/1">Kathleen Labrie</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Jensen_J/0/1/0/all/0/1">Jaclyn Jensen</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lambert_S/0/1/0/all/0/1">Sam Lambert</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Lawrence_J/0/1/0/all/0/1">Jon Lawrence</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Macdonald_G/0/1/0/all/0/1">G. Scott Macdonald</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Margheim_S/0/1/0/all/0/1">Steven Margheim</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Millar_B/0/1/0/all/0/1">Bryan Millar</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Muller_R/0/1/0/all/0/1">Rolf Muller</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Nielsen_J/0/1/0/all/0/1">Jon G. Nielsen</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Perez_G/0/1/0/all/0/1">Gabriel Pérez</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Quiroz_C/0/1/0/all/0/1">Carlos Quiroz</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Ruiz_Carmona_R/0/1/0/all/0/1">Roque Ruiz-Carmona</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sebo_K/0/1/0/all/0/1">Kim M. Sebo</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Sestito_F/0/1/0/all/0/1">Federico Sestito</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Silva_K/0/1/0/all/0/1">Kareleyne Silva</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Simpson_C/0/1/0/all/0/1">Chris Simpson</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Smith_G/0/1/0/all/0/1">Greg Smith</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Venkatesan_S/0/1/0/all/0/1">Sudharshan Venkatesan</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Waller_F/0/1/0/all/0/1">Fletcher Waller</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Waller_L/0/1/0/all/0/1">Lewis Waller</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Wevers_I/0/1/0/all/0/1">Ivan Wevers</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Venn_K/0/1/0/all/0/1">Kim A. Venn</a>, <a href="http://arxiv.org/find/astro-ph/1/au:+Young_P/0/1/0/all/0/1">Peter Young</a>

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.

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