MuSCAT2: four-color Simultaneous Camera for the 1.52-m Telescopio Carlos Sánchez

Abstract

We report the development of a 4-color simultaneous camera for the 1.52~m Telescopio Carlos Sánchez (TCS) in the Teide Observatory, Canaries, Spain. The new instrument, named MuSCAT2, has a capability of 4-color simultaneous imaging in $g$ (400--550 nm), $r$ (550--700 nm), $i$ (700--820 nm), and $z_s$ (820--920 nm) bands. MuSCAT2 equips four 1024$\times$1024 pixel CCDs, having a field of view of 7.4$\times$7.4 arcmin${}^2$ with a pixel scale of 0.44 arcsec per pixel. The principal purpose of MuSCAT2 is to perform high-precision multi-color exoplanet transit photometry. We have demonstrated photometric precisions of 0.057%, 0.050%, 0.060%, and 0.076% as root-mean-square residuals of 60~s binning in $g$, $r$, $i$ and $z_s$ bands, respectively, for a G0 V star WASP-12 ($V=11.57\pm 0.16$). MuSCAT2 has started science operations since January 2018, with over 250 telescope nights per year. MuSCAT2 is expected to become a reference tool for exoplanet transit observations, and will substantially contribute to the follow-up of the TESS and PLATO space missions.

arXiv comment21 pages, 13 figures, 5 tables, Published in JATIS on Dec 27, 2018, the open access article is available http://dx.doi.org/10.1117/1.JATIS.5.1.015001

References in corpus (27)

• The Seventh Data Release of the Sloan Digital Sky Survey
• The Transiting Exoplanet Survey Satellite
• The K2 Mission: Characterization and Early results
• The PLATO 2.0 Mission
• Astrometry.net: Blind astrometric calibration of arbitrary astronomical images
• A super-Earth transiting a nearby low-mass star
• Temperate Earth-sized planets transiting a nearby ultracool dwarf star
• The Transiting Exoplanet Survey Satellite: Simulations of planet detections and astrophysical false positives
• WASP-1b and WASP-2b: Two new transiting exoplanets detected with SuperWASP and SOPHIE
• KELT-1b: A Strongly Irradiated, Highly Inflated, Short Period, 27 Jupiter-mass Companion Transiting a mid-F Star
• The Next Generation Transit Survey (NGTS)
• A giant planet undergoing extreme ultraviolet irradiation by its hot massive-star host
• PyTransit: Fast and Easy Exoplanet Transit Modelling in Python
• SOPHIE velocimetry of Kepler transit candidates VII. A false-positive rate of 35% for Kepler close-in giant exoplanet candidates
• Theoretical transmission spectra of exoplanet atmospheres with hydrocarbon haze: Effect of creation, growth, and settling of haze particles. I. Model description and first results
• Exoplanets around Low-mass Stars Unveiled by K2
• MuSCAT: a multicolor simultaneous camera for studying atmospheres of transiting exoplanets
• The KELT Follow-Up Network and Transit False Positive Catalog: Pre-vetted False Positives for TESS
• Optical-to-Near-Infrared Simultaneous Observations for the Hot Uranus GJ3470b: A Hint for Cloud-free Atmosphere
• One of the closest exoplanet pairs to the 3:2 Mean Motion Resonance: K2-19b \& c
• Ground-Based Submillimagnitude CCD Photometry of Bright Stars Using Snapshot Observations
• Using color photometry to separate transiting exoplanets from false positives
• The GTC exoplanet transit spectroscopy survey II: An overly-large Rayleigh-like feature for exoplanet TrES-3b
• Demonstrating High-precision, Multiband Transit Photometry with MuSCAT: A Case for HAT-P-14b
• Characterization of the K2-19 Multiple-Transiting Planetary System via High-Dispersion Spectroscopy, AO Imaging, and Transit Timing Variations
• The K2-ESPRINT Project VI: K2-105 b, a Hot-Neptune around a Metal-rich G-dwarf
• Ground-based Transit Observation of the Habitable-zone Super-Earth K2-3d

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