Fourstar: The near-infrared imager for the 6.5 m baade telescope at las campanas observatory

S. E. Persson; D. C. Murphy; S. Smee; C. Birk; A. J. Monson; A. Uomoto; E. Koch; S. Shectman; R. Barkhouser; J. Orndorff; R. Hammond; A. Harding; G. Scharfstein; D. Kelson; J. Marshall; P. J. McCarthy

doi:10.1086/671164

Fourstar: The near-infrared imager for the 6.5 m baade telescope at las campanas observatory

S. E. Persson, D. C. Murphy, S. Smee, C. Birk, A. J. Monson, A. Uomoto, E. Koch, S. Shectman, R. Barkhouser, J. Orndorff, R. Hammond, A. Harding, G. Scharfstein, D. Kelson, J. Marshall, P. J. McCarthy

Astronomy & Astrophysics

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101 Scopus citations

Abstract

The FourStar Infrared Camera is a 4 K×4 K near-infrared (1.0-2.4 μm) imager built for the Magellan 6.5 m Baade Telescope at Las Campanas Observatory, Chile. FourStar has an all-refractive optical system, four HAWAII-2RG detectors, and Teledyne electronics. The pixel scale of 0:159″ pixel^-1 produces a 10:80 × 10:80 field of view. Ten filters are available across the Y, J,H, andKs bands.We present the optical, mechanical, thermal, electronic, and software design choices and their associated engineering implementations. The detector readout electronics, control system, and the automatic data acquisition hardware are also described. Laboratory and onsky performance data are presented. FourStar has excellent image quality, easily meeting the requirement of critically sampling the median seeing disk. The throughput is ≈0:5-0:6 across its wavelength coverage. Some early science results are presented.

Original language	English (US)
Pages (from-to)	654-682
Number of pages	29
Journal	Publications of the Astronomical Society of the Pacific
Volume	125
Issue number	928
DOIs	https://doi.org/10.1086/671164
State	Published - Jun 2013

All Science Journal Classification (ASJC) codes

Astronomy and Astrophysics
Space and Planetary Science

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Persson, S. E., Murphy, D. C., Smee, S., Birk, C., Monson, A. J., Uomoto, A., Koch, E., Shectman, S., Barkhouser, R., Orndorff, J., Hammond, R., Harding, A., Scharfstein, G., Kelson, D., Marshall, J., & McCarthy, P. J. (2013). Fourstar: The near-infrared imager for the 6.5 m baade telescope at las campanas observatory. Publications of the Astronomical Society of the Pacific, 125(928), 654-682. https://doi.org/10.1086/671164

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title = "Fourstar: The near-infrared imager for the 6.5 m baade telescope at las campanas observatory",

abstract = "The FourStar Infrared Camera is a 4 K×4 K near-infrared (1.0-2.4 μm) imager built for the Magellan 6.5 m Baade Telescope at Las Campanas Observatory, Chile. FourStar has an all-refractive optical system, four HAWAII-2RG detectors, and Teledyne electronics. The pixel scale of 0:159″ pixel-1 produces a 10:80 × 10:80 field of view. Ten filters are available across the Y, J,H, andKs bands.We present the optical, mechanical, thermal, electronic, and software design choices and their associated engineering implementations. The detector readout electronics, control system, and the automatic data acquisition hardware are also described. Laboratory and onsky performance data are presented. FourStar has excellent image quality, easily meeting the requirement of critically sampling the median seeing disk. The throughput is ≈0:5-0:6 across its wavelength coverage. Some early science results are presented.",

author = "Persson, {S. E.} and Murphy, {D. C.} and S. Smee and C. Birk and Monson, {A. J.} and A. Uomoto and E. Koch and S. Shectman and R. Barkhouser and J. Orndorff and R. Hammond and A. Harding and G. Scharfstein and D. Kelson and J. Marshall and McCarthy, {P. J.}",

year = "2013",

month = jun,

doi = "10.1086/671164",

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Persson, SE, Murphy, DC, Smee, S, Birk, C, Monson, AJ, Uomoto, A, Koch, E, Shectman, S, Barkhouser, R, Orndorff, J, Hammond, R, Harding, A, Scharfstein, G, Kelson, D, Marshall, J & McCarthy, PJ 2013, 'Fourstar: The near-infrared imager for the 6.5 m baade telescope at las campanas observatory', Publications of the Astronomical Society of the Pacific, vol. 125, no. 928, pp. 654-682. https://doi.org/10.1086/671164

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AU - Persson, S. E.

AU - Murphy, D. C.

AU - Smee, S.

AU - Birk, C.

AU - Monson, A. J.

AU - Uomoto, A.

AU - Koch, E.

AU - Shectman, S.

AU - Barkhouser, R.

AU - Orndorff, J.

AU - Hammond, R.

AU - Harding, A.

AU - Scharfstein, G.

AU - Kelson, D.

AU - Marshall, J.

AU - McCarthy, P. J.

PY - 2013/6

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N2 - The FourStar Infrared Camera is a 4 K×4 K near-infrared (1.0-2.4 μm) imager built for the Magellan 6.5 m Baade Telescope at Las Campanas Observatory, Chile. FourStar has an all-refractive optical system, four HAWAII-2RG detectors, and Teledyne electronics. The pixel scale of 0:159″ pixel-1 produces a 10:80 × 10:80 field of view. Ten filters are available across the Y, J,H, andKs bands.We present the optical, mechanical, thermal, electronic, and software design choices and their associated engineering implementations. The detector readout electronics, control system, and the automatic data acquisition hardware are also described. Laboratory and onsky performance data are presented. FourStar has excellent image quality, easily meeting the requirement of critically sampling the median seeing disk. The throughput is ≈0:5-0:6 across its wavelength coverage. Some early science results are presented.

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Fourstar: The near-infrared imager for the 6.5 m baade telescope at las campanas observatory

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