Project Solaris, a Global Network of Autonomous Observatories: Design, Commissioning, and First Science Results

Abstract

We present the design and commissioning of Project Solaris, a global network of autonomous observatories. Solaris is a Polish scientific undertaking aimed at the detection and characterization of circumbinary exoplanets and eclipsing binary stars. To accomplish this, a network of four fully autonomous observatories has been deployed in the Southern Hemisphere: Solaris-1 and Solaris-2 in the South African Astronomical Observatory in South Africa; Solaris-3 in Siding Spring Observatory in Australia; and Solaris-4 in Complejo Astronomico El Leoncito in Argentina. The four stations are nearly identical and are equipped with 0.5-m Ritchey-Crétien (f/15) or Cassegrain (f/9, Solaris-3) optics and high-grade 2 K x 2 K CCD cameras with Johnson and Sloan filter sets. We present the design and implementation of low-level security; data logging and notification systems; weather monitoring components; all-sky vision system, surveillance system; and distributed temperature and humidity sensors. We describe dedicated grounding and lighting protection system design and robust fiber data transfer interfaces in electrically demanding conditions. We discuss the outcomes of our design, as well as the resulting software engineering requirements. We describe our system's engineering approach to achieve the required level of autonomy, the architecture of the custom high-level industry-grade software that has been designed and implemented specifically for the use of the network. We present the actual status of the project and first photometric results; these include data and models of already studied systems for benchmarking purposes (Wasp-4b, Wasp-64b, and Wasp-98b transits, PG 1663-018, an eclipsing binary with a pulsator) as well J024946-3825.6, an interesting low-mass binary system for which a complete model is provided for the first time.

References in corpus (43)

• The WASP Project and the SuperWASP Cameras
• Las Cumbres Observatory Global Telescope Network
• Kepler Mission Design, Realized Photometric Performance, and Early Science
• Achieving better than 1 minute accuracy in the Heliocentric and Barycentric Julian Dates
• A Computational Guide to Physics of Eclipsing Binaries. Paper I. Demonstrations and Perspectives
• Towards Better Age Estimates for Stellar Populations: The Y^2 Isochrones for Solar Mixture
• Kepler-16: A Transiting Circumbinary Planet
• EXOFAST: A fast exoplanetary fitting suite in IDL
• The Kilodegree Extremely Little Telescope (KELT): A Small Robotic Telescope for Large-Area Synoptic Surveys
• Evolution of low-mass star and brown dwarf eclipsing binaries
• Kepler-47: A Transiting Circumbinary Multi-Planet System
• Eclipsing binaries in open clusters. II. V453 Cyg in NGC 6871
• HATSouth: a global network of fully automated identical wide-field telescopes
• Planet Hunters: A Transiting Circumbinary Planet in a Quadruple Star System
• The ROTSE-III Robotic Telescope System
• Barycentric Corrections at 1 cm/s for precise Doppler velocities
• The 1995 Pilot Campaign of PLANET: Searching for Microlensing Anomalies through Precise, Rapid, Round-the-Clock Monitoring
• Eclipsing binaries in open clusters. III. V621 Per in chi Persei
• WASP-4b: a 12th-magnitude transiting hot-Jupiter in the Southern hemisphere
• Three Wide Planetary-Mass Companions to FW Tau, ROXs 12, and ROXs 42B
• Transiting hot Jupiters from WASP-South, Euler and TRAPPIST: WASP-95b to WASP-101b
• Direct Imaging and Spectroscopy of a Candidate Companion Below/Near the Deuterium-Burning Limit In The Young Binary Star System, ROXs 42B
• Reevaluating the Mass-Radius Relation for Low-Mass, Main Sequence Stars
• The First Circumbinary Planet Found by Microlensing: OGLE-2007-BLG-349L(AB)c
• Masses and orbital inclinations of planets in the PSR B1257+12 system
• RoboNet-II: Follow-up observations of microlensing events with a robotic network of telescopes
• Atmospheric Scintillation in Astronomical Photometry
• The binary properties of the pulsating subdwarf B eclipsing binary PG 1336-018 (NY Vir)
• Miniature Exoplanet Radial Velocity Array (MINERVA) I. Design, Commissioning, and First Science Results
• High precision orbital and physical parameters of double-lined spectroscopic binary stars - HD78418, HD123999, HD160922, HD200077 and HD210027
• A Circumbinary Planet in Orbit Around the Short-Period White-Dwarf Eclipsing Binary RR Cae
• The MASTER-II Network of Robotic Optical Telescopes. First Results
• WASP-64b and WASP-72b: two new transiting highly irradiated giant planets
• The mass and radius of the M-dwarf in the short period eclipsing binary RR Caeli
• The Radial Velocity TATOOINE Search for Circumbinary Planets: Planet Detection Limits for a Sample of Double-lined Binary Stars - Initial Results from Keck I/Hires, Shane/CAT/Hamspec and TNG/Sarg Observations
• SPOTS: The Search for Planets Orbiting Two Stars: II. First constraints on the frequency of sub-stellar companions on wide circumbinary orbits
• Precision radial velocities of double-lined spectroscopic binaries with an iodine absorption cell
• Absolute dimensions of the G7+K7 eclipsing binary star IM Virginis: Discrepancies with stellar evolution models
• An evolutionary study of the pulsating subdwarf B eclipsing binary PG1336-018 (NY Vir)
• Orbital and physical parameters of eclipsing binaries from the ASAS catalogue -- II. Two spotted M < 1 M${}_{\odot }$ systems at different evolutionary stages
• RTS2 - the Remote Telescope System
• Spectroscopic Survey of Eclipsing Binaries with a Low Cost Échelle Spectrograph -- Scientific Commissioning
• TALON - The Telescope Alert Operation Network System: Intelligent Linking of Distributed Autonomous Robotic Telescopes

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• TESS Transit Timing of Hundreds of Hot Jupiters
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• ExoClock project II: A large-scale integrated study with 180 updated exoplanet ephemerides
• The BlackGEM telescope array I: Overview
• Analysis of eclipsing binaries in multiple stellar systems: the case of V1200 Centauri