On the radial velocity detection of additional planets in transiting, slowly rotating M-dwarf systems: the case of GJ 1132

Abstract

M-dwarfs are known to commonly host high-multiplicity planetary systems. Therefore M-dwarf planetary systems with a known transiting planet are expected to contain additional small planets ($r_p\le 4$ R${}_{\oplus }$, $m_p\lesssim 20$ M${}_{\oplus }$) that are not seen in transit. In this study we investigate the effort required to detect such planets using precision velocimetry around the sizable subset of M-dwarfs which are slowly rotating ($P_{\mathrm{rot}}\gtrsim 40$ days) and hence more likely to be inactive. We focus on the test case of GJ 1132. Specifically, we perform a suite of Monte-Carlo simulations of the star's radial velocity signal featuring astrophysical contributions from stellar jitter due to rotationally modulated active regions and keplarian signals from the known transiting planet and hypothetical additional planets not seen in transit. We then compute the detection completeness of non-transiting planets around GJ 1132 and consequently estimate the number of RV measurements required to detect those planets. We show that with 1 m s${}^{-1}$ RV precision per measurement, only $\sim 50$ measurements are required to achieve a 50\% detection completeness to all non-transiting planets in the system and to planets which are potentially habitable. Throughout we advocate the use of Gaussian process regression as an effective tool for mitigating the effects of stellar jitter including stars with high activity. Given that GJ 1132 is representative of a large population of slowly rotating M-dwarfs, we conclude with a discussion of how our results may be extended to other systems with known transiting planets such as those which will be discovered with TESS.

arXiv comment19 pages (15 pages before appendices), 12 figures, 2 tables, accepted for publication in The Astronomical Journal

References in corpus (83)

• emcee: The MCMC Hammer
• MultiNest: an efficient and robust Bayesian inference tool for cosmology and particle physics
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• Mass-Radius Relationships for Solid Exoplanets
• Rotation Periods of 34,030 Kepler Main-Sequence Stars: The Full Autocorrelation Sample
• Architecture of Kepler's Multi-transiting Systems: II. New investigations with twice as many candidates
• Understanding the Mass-Radius Relation for Sub-Neptunes: Radius as a Proxy for Composition
• On the rotational evolution of solar- and late-type stars, its magnetic origins, and the possibility of stellar gyrochronology
• The HARPS search for southern extra-solar planets XXXI. The M-dwarf sample
• The Occurrence Rate of Small Planets around Small Stars
• The Mass-Radius Relation for 65 Exoplanets Smaller than 4 Earth Radii
• The Transiting Exoplanet Survey Satellite: Simulations of planet detections and astrophysical false positives
• Habitable planets around the star Gl 581?
• Planets and Stellar Activity: Hide and Seek in the CoRoT-7 system
• Measuring the rotation period distribution of field M-dwarfs with Kepler
• Rotation and Activity in Mid-M to L Dwarfs
• Transmission Spectra as Diagnostics of Extrasolar Giant Planet Atmospheres
• A Gaussian process framework for modelling stellar activity signals in radial velocity data
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• Water Vapor in the Spectrum of the Extrasolar Planet HD 189733b: 1. the Transit
• Parametrizing the exoplanet eccentricity distribution with the Beta distribution
• A simple method to estimate radial velocity variations due to stellar activity using photometry
• Eccentricity from transit photometry: small planets in Kepler multi-planet systems have low eccentricities
• Planetary detection limits taking into account stellar noise. I. Observational strategies to reduce stellar oscillation and granulation effects
• The rotation and Galactic kinematics of mid M dwarfs in the Solar Neighborhood
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• The HARPS search for southern extra-solar planets. X. A m sin i = 11 Mearth planet around the nearby spotted M dwarf GJ 674
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• On the angular momentum evolution of fully-convective stars: rotation periods for field M-dwarfs from the MEarth transit survey
• Transit Timing Observations from Kepler: IV. Confirmation of 4 Multiple Planet Systems by Simple Physical Models
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• Stellar Rotation Periods of the Kepler Objects of Interest: A Dearth of Close-in Planets around Fast Rotators
• Detectability of Extrasolar Planets in Radial Velocity Surveys
• The Mass of Kepler-93b and The Composition of Terrestrial Planets
• Detecting Planets Around Very Low Mass Stars with the Radial Velocity Method
• A catalogue of rotation and activity in early-M stars
• They are Small Worlds After All: Revised Properties of Kepler M Dwarf Stars and their Planets
• The Habitable-Zone Planet Finder: A Stabilized Fiber-Fed NIR Spectrograph for the Hobby-Eberly Telescope
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• The Sun as a planet-host star: Proxies from SDO images for HARPS radial-velocity variations
• An Activity-Rotation Relationship and Kinematic Analysis of Nearby Mid-to-Late-type M Dwarfs
• Habitable Climates: The Influence of Obliquity
• Determining the Mass of Kepler-78b With Nonparametric Gaussian Process Estimation
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• Systemic: A Testbed For Characterizing the Detection of Extrasolar Planets. I. The Systemic Console Package
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• SPIRou: the near-infrared spectropolarimeter/high-precision velocimeter for the Canada-France-Hawaii telescope
• The HARPS search for southern extra-solar planets: XIV. Gl 176b, a super-Earth rather than a Neptune, and at a different period
• Comparing HARPS and Kepler surveys: The alignment of multiple-planet systems
• Terrestrial Planet Formation in Disks with Varying Surface Density Profiles
• The Exoplanet Eccentricity Distribution from Kepler Planet Candidates
• The impact of red noise in radial velocity planet searches: Only three planets orbiting GJ581?
• Characterizing K2 Planet Discoveries: A super-Earth transiting the bright K-dwarf HIP 116454
• Habitable Climates
• Radial velocity signatures of Zeeman broadening
• Bayesian analysis of radial velocity data of GJ667C with correlated noise: evidence for only 2 planets
• Water vapor in the spectrum of the extrasolar planet HD 189733b: 2. The eclipse
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• Thermal Phases of Earth-Like Planets: Estimating Thermal Inertia from Eccentricity, Obliquity, and Diurnal Forcing
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• Starspot-induced optical and infrared radial velocity variability in T Tauri star Hubble 4
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• Probing the Flare Atmospheres of M dwarfs Using Infrared Emission Lines
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• Could Jupiter or Saturn Have Ejected a Fifth Giant Planet?
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• Prospects for detecting the Rossiter-McLaughlin effect of Earth-like planets: the test case of TRAPPIST-1b and c

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