A planet within the debris disk around the pre-main-sequence star AU Microscopii

Abstract

AU Microscopii (AU Mic) is the second closest pre main sequence star, at a distance of 9.79 parsecs and with an age of 22 million years. AU Mic possesses a relatively rare and spatially resolved3 edge-on debris disk extending from about 35 to 210 astronomical units from the star, and with clumps exhibiting non-Keplerian motion. Detection of newly formed planets around such a star is challenged by the presence of spots, plage, flares and other manifestations of magnetic activity on the star. Here we report observations of a planet transiting AU Mic. The transiting planet, AU Mic b, has an orbital period of 8.46 days, an orbital distance of 0.07 astronomical units, a radius of 0.4 Jupiter radii, and a mass of less than 0.18 Jupiter masses at 3 sigma confidence. Our observations of a planet co-existing with a debris disk offer the opportunity to test the predictions of current models of planet formation and evolution.

arXiv commentNature, published June 24th [author spelling name fix]

References in corpus (42)

• The Transiting Exoplanet Survey Satellite
• New evolutionary models for pre-main sequence and main sequence low-mass stars down to the hydrogen-burning limit
• The WASP Project and the SuperWASP Cameras
• Kepler Presearch Data Conditioning II - A Bayesian Approach to Systematic Error Correction
• EXOFAST: A fast exoplanetary fitting suite in IDL
• Planet-disk interaction and orbital evolution
• Overview of the Kepler Science Processing Pipeline
• Probabilistic Forecasting of the Masses and Radii of Other Worlds
• RadVel: The Radial Velocity Modeling Toolkit
• The California Planet Survey I. Four New Giant Exoplanets
• CSI 2264: Simultaneous optical and infrared light curves of young disk-bearing stars in NGC 2264 with CoRoT and Spitzer-- evidence for multiple origins of variability
• The HARPS-TERRA project I. Description of the algorithms, performance and new measurements on a few remarkable stars observed by HARPS
• On the age of the $\beta$ Pictoris moving group
• Spitzer Secondary Eclipses of the Dense, Modestly-irradiated, Giant Exoplanet HAT-P-20b Using Pixel-Level Decorrelation
• Ground-based detection of an extended helium atmosphere in the Saturn-mass exoplanet WASP-69b
• Spectrally resolved helium absorption from the extended atmosphere of a warm Neptune-mass exoplanet
• Discovery of a large dust disk around the nearby star AU Microscopium
• Detecting Planets Around Very Low Mass Stars with the Radial Velocity Method
• Dust Dynamics, Surface Brightness Profiles, and Thermal Spectra of Debris Disks: The Case of AU Mic
• New Debris Disks Around Young, Low Mass Stars Discovered With The Spitzer Space Telescope
• A hot Jupiter orbiting a 2-Myr-old solar-mass T Tauri star
• Where Are The M Dwarf Disks Older Than 10 Million Years?
• Uranus evolution models with simple thermal boundary layers
• Millimeter Emission Structure in the first ALMA Image of the AU Mic Debris Disk
• The mass of the young planet Pictoris b through the astrometric motion of its host star
• Characterizing Distant Worlds with Asterodensity Profiling
• Radial velocity signatures of Zeeman broadening
• The PTF Orion Project: a Possible Planet Transiting a T-Tauri Star
• Radial Velocity Planet Detection Biases at the Stellar Rotational Period
• The CARMENES search for exoplanets around M dwarfs: Radial-velocity variations of active stars in visual-channel spectra
• Towards Understanding Stellar Radial Velocity Jitter as a Function of Wavelength: The Sun as a Proxy
• Long-wavelength observations of debris discs around sun-like stars
• Periodic and Aperoidic Variability in the Molecular Cloud ρOphiuchus
• Precise Radial Velocities of Cool Low Mass Stars With iSHELL
• Exoplanet Imitators: A test of stellar activity behavior in radial velocity signals
• Gemini Planet Imager Observations of the AU Microscopii Debris Disk: Asymmetries within One Arcsecond
• A Search for Planets Transiting the M Dwarf Debris Disk Host, AU Microscopii
• Combining direct imaging and radial velocity data towards a full exploration of the giant planet population
• Expelled grains from an unseen parent body around AU Mic
• Stellar Winds and Dust Avalanches in the AU Mic Debris Disk
• Recovering planet radial velocity signals in the presence of starspot activity in fully convective stars
• Detection of Nitrogen gas in the $\beta$ Pictoris circumstellar disk

Cited by in corpus (145)

• Exoplanet Statistics and Theoretical Implications
• exoplanet: Gradient-based probabilistic inference for exoplanet data & other astronomical time series
• Stellar obliquities in exoplanetary systems
• The nature and origins of sub-Neptune size planets
• The 10 parsec sample in the Gaia era
• New constraints on the planetary system around the young active star AU Mic. Two transiting warm Neptunes near mean-motion resonance
• Investigating the young AU~Mic system with SPIRou: large-scale stellar magnetic field and close-in planet mass
• Masses and compositions of three small planets orbiting the nearby M dwarf L231-32 (TOI-270) and the M dwarf radius valley
• Planet-induced radio emission from the coronae of M dwarfs: the case of Prox Cen and AU Mic
• TESS Hunt for Young and Maturing Exoplanets (THYME) VI: an 11 Myr giant planet transiting a very low-mass star in Lower Centaurus Crux
• The magnetic field and multiple planets of the young dwarf AU~Mic
• Limits on the Spin-Orbit Angle and Atmospheric Escape for the 22 Myr-old Planet AU Mic b
• The Habitable-zone Planet Finder Reveals A High Mass and a Low Obliquity for the Young Neptune K2-25b
• Rapid contraction of giant planets orbiting the 20 million-years old star V1298 Tau
• Diving Beneath the Sea of Stellar Activity: Chromatic Radial Velocities of the Young AU Mic Planetary System
• A Tale of Planet Formation: From Dust to Planets
• One year of AU Mic with HARPS: II -- stellar activity and star-planet interaction
• TESS Hunt for Young and Maturing Exoplanets (THYME) V: A Sub-Neptune Transiting a Young Star in a Newly Discovered 250 Myr Association
• Flares, Rotation, and Planets of the AU Mic System from TESS Observations
• The SPHERE infrared survey for exoplanets (SHINE)- I Sample definition and target characterization
• Planet populations inferred from debris discs: insights from 178 debris systems in the ISPY, LEECH and LIStEN planet-hunting surveys
• Cluster Difference Imaging Photometric Survey. II. TOI 837: A Young Validated Planet in IC 2602
• Two young planetary systems around field stars with ages between 20-320 Myr from TESS
• A Number of Nearby Moving Groups may be Fragments of Dissolving Open Clusters
• Overfitting Affects the Reliability of Radial Velocity Mass Estimates of the V1298 Tau Planets
• Transmission spectroscopy and Rossiter-McLaughlin measurements of the young Neptune orbiting AU Mic
• One year of AU Mic with HARPS: I -- measuring the masses of the two transiting planets
• Hubble Space Telescope transmission spectroscopy for the temperate sub-Neptune TOI-270d: a possible hydrogen-rich atmosphere containing water vapour
• PySME -- Spectroscopy Made Easier
• The young HD 73583 (TOI-560) planetary system: Two 10-M${}_{\oplus }$ mini-Neptunes transiting a 500-Myr-old, bright, and active K dwarf
• Reconstructing the Extreme Ultraviolet Emission of Cool Dwarfs Using Differential Emission Measure Polynomials
• Spin-orbit alignment and magnetic activity in the young planetary system AU Mic
• Constraints on the mass and atmospheric composition and evolution of the low-density young planet DS Tuc A b
• A detailed analysis of the Gl 486 planetary system
• Constraining the entropy of formation from young transiting planets
• Rotation and Lithium Confirmation of a 500 Parsec Halo for the Open Cluster NGC 2516
• The GAPS Programme with HARPS-N at TNG. XXXVII. A precise density measurement of the young ultra-short period planet TOI-1807 b
• Uncovering the true periods of the young sub-Neptunes orbiting TOI-2076
• The dichotomy of atmospheric escape in AU Mic b
• AU Microscopii in the FUV: Observations in Quiescence, During Flares, and Implications for AU Mic b and c
• The CARMENES search for exoplanets around M dwarfs. Mapping stellar activity indicators across the M dwarf domain
• Simulating the Space Weather in the AU Mic System: Stellar Winds and Extreme Coronal Mass Ejections
• H-alpha and Ca II Infrared Triplet Variations During a Transit of the 23 Myr Planet V1298 Tau c
• Constraining atmospheric parameters and surface magnetic fields with $\text{ZeeTurbo}$: an application to SPIRou spectra
• Homogeneous search for helium in the atmosphere of 11 gas giant exoplanets with SPIRou
• The GAPS Programme at TNG XXVIII -- A pair of hot-Neptunes orbiting the young star TOI-942
• Starspot mapping with adaptive parallel tempering. II. Application to TESS data for M-dwarf flare stars, AU Microscopii, YZ Canis Minoris, and EV Lacertae
• A Seven-Day Multi-Wavelength Flare Campaign on AU Mic I: High-Time Resolution Light Curves and the Thermal Empirical Neupert Effect
• The GAPS Programme at TNG XXVII. Reassessment of a young planetary system with HARPS-N: is the hot Jupiter V830 Tau b really there?
• The vertical structure of debris disks and the impact of gas
• A giant planet transiting a 3-Myr protostar with a misaligned disk
• New Coronae and Stellar Associations Revealed by a Clustering Analysis of the Solar Neighborhood
• Searching for flaring star-planet interactions in AU Mic TESS observations
• TESS Hunt for Young and Maturing Exoplanets (THYME) VII : Membership, rotation, and lithium in the young cluster Group-X and a new young exoplanet
• How does the mass and activity history of the host star affect the population of low-mass planets?
• Magnetic Field of the Active Planet-hosting M Dwarf AU Mic
• A PSF-based Approach to TESS High quality data Of Stellar clusters (PATHOS) -- IV. Candidate exoplanets around stars in open clusters: frequency and age-planetary radius distribution
• V1298 Tau with TESS: Updated Ephemerides, Radii, and Period Constraints from a Second Transit of V1298 Tau e
• Monitoring the young planet host V1298 Tau with SPIRou: planetary system and evolving large-scale magnetic field
• A Mini-Neptune from TESS and CHEOPS Around the 120 Myr Old AB Dor member HIP 94235
• TESS Investigation -- Demographics of Young Exoplanets (TI-DYE) II: a second giant planet in the 17-Myr system HIP 67522
• Confirmation of an He I evaporating atmosphere around the 650-Myr-old sub-Neptune HD235088 b (TOI-1430 b) with CARMENES
• A 38 Million Year Old Neptune-Sized Planet in the Kepler Field
• Space Weather-driven Variations in Ly$\alpha$ Absorption Signatures of Exoplanet Atmospheric Escape: MHD Simulations and the Case of AU Mic b
• Transit timing variations of AU Microscopii b and c
• The influence of host star activity evolution on the population of super-Earths and mini-Neptunes
• Radial Velocity Survey for Planets around Young stars (RVSPY) A transiting warm super-Jovian planet around HD 114082, a young star with a debris disk
• Evidence for Primordial Alignment: Insights from Stellar Obliquity Measurements for Compact Sub-Saturn Systems
• The T Tauri star V410 Tau in the eyes of SPIRou and TESS
• TOI-1268b: the youngest, hot, Saturn-mass transiting exoplanet
• Probing atmospheric escape through metastable He I triplet lines in 15 exoplanets observed with SPIRou
• A Framework for Characterizing Transmission Spectra of Exoplanets with Circumplanetary Rings
• A Machine Learning approach for correcting radial velocities using physical observables
• Short term variability of DS Tuc A observed with TESS
• An Integrated Analysis with Predictions on the Architecture of the tau Ceti Planetary System, Including a Habitable Zone Planet
• The young mini-Neptune HD 207496b that is either a naked core or on the verge of becoming one
• Planetary parameters, XUV environments and mass-loss rates for nearby gaseous planets with X-ray detected host-stars
• The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) II. The radial structure of debris discs
• The GAPS program at TNG XLVII: The unusual formation history of V1298 Tau
• The Variable Detection of Atmospheric Escape around the young, Hot Neptune AU Mic b
• The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) I: Motivation, sample, data reduction, and results overview
• Rave: A non-parametric method for recovering the surface brightness and height profiles of edge-on debris disks
• Multiwavelength Vertical Structure in the AU Mic Debris Disk: Characterizing the Collisional Cascade
• TOI-179: a young system with a transiting compact Neptune-mass planet and a low-mass companion in outer orbit
• The LHS 1678 System: Two Earth-Sized Transiting Planets and an Astrometric Companion Orbiting an M Dwarf Near the Convective Boundary at 20 pc
• Dynamical Mass of the Young Brown Dwarf Companion PZ Tel B
• Stumbling over planetary building blocks: AU Microscopii as an example of the challenge of retrieving debris-disk dust properties
• The active weak-line T Tauri star LkCa 4 observed with SPIRou and TESS
• TOI-1801 b: A temperate mini-Neptune around a young M0.5 dwarf
• Inner edges of planetesimal belts: collisionally eroded or truncated?
• TOI-4562 b: A highly eccentric temperate Jupiter analog orbiting a young field star
• Joint Modeling of Radial Velocities and Photometry with a Gaussian Process Framework
• Stability Constrained Characterization of the 23 Myr-old V1298 Tau System: Do Young Planets Form in Mean Motion Resonance Chains?
• Mutual inclinations between giant planets and their debris discs in HD 113337 and HD 38529
• Tracing the formation and migration history: molecular signatures in the atmosphere of misaligned hot Jupiter WASP-94Ab using JWST NIRSpec/G395H
• Updated Planetary Mass Constraints of the Young V1298 Tau System Using MAROON-X
• A possible misaligned orbit for the young planet AU Mic c
• TOI-837b is a Young Saturn-sized Exoplanet with a Massive 70 $M_{\oplus }$ Core
• TESS and CHEOPS Discover Two Warm Sub-Neptunes Transiting the Bright K-dwarf HD 15906
• TOI-3785 b: A Low-Density Neptune Orbiting an M2-Dwarf Star
• VaTEST I: Validation of Sub-Saturn Exoplanet TOI-181b in Narrow Orbit from its Host Star
• Can comets deliver prebiotic molecules to rocky exoplanets?
• Flybys in debris disk systems with Gaia eDR3
• Dynamical masses of two young transiting sub-Neptunes orbiting HD 63433
• Orbital Dynamics and the Evolution of Planetary Habitability in the AU Mic System
• The ALMA survey to Resolve exoKuiper belt Substructures (ARKS) V: Comparison between scattered light and thermal emission
• Spinning up a Daze: TESS Uncovers a Hot Jupiter orbiting the Rapid-Rotator TOI-778
• Stellar Energetic Particle Transport in the Turbulent and CME-disrupted Stellar Wind of AU~Microscopii
• A Search for Exoplanets in Open Clusters and Young Associations based on TESS Objects of Interest
• TOI-837 b: characterisation, formation and evolutionary history of an infant warm Saturn-mass planet
• Reaching the boundary between stellar kinematic groups and very wide binaries. IV. The widest Washington double star systems with rho > 1000 arcsec in Gaia DR3
• Probing the innermost region of the AU~Microscopii debris disk
• The strong suppression of Galactic cosmic rays reaching AU Mic b, c and Prox Cen b
• TOI-712: a system of adolescent mini-Neptunes extending to the habitable zone
• NIGHT: a compact, near-infrared, high-resolution spectrograph to survey helium in exoplanet systems
• Imaging of exocomets with infrared interferometry
• Spectroscopic observations of flares and superflares on AU Mic
• Characterization of debris disks observed with SPHERE
• The GALAH Survey: Improving our understanding of confirmed and candidate planetary systems with large stellar surveys
• Multi-wavelength aperture polarimetry of debris disc host stars
• Solar Hα excess during Solar Cycle 24 from full-disk filtergrams of the Chromospheric Telescope
• A Seven-Day Multi-Wavelength Flare Campaign on AU Mic III: Quiescent and Flaring Properties of the X-ray Spectra and Chromospheric lines
• IGRINS RV: A Precision RV Pipeline for IGRINS Using Modified Forward Modeling in the Near-Infrared
• The Mysterious Affair of the H${}_2$ in AU Mic
• The GAPS programme at TNG XLIII. A massive brown dwarf orbiting the active M dwarf TOI-5375
• A transiting multi-planet system in the 61 million year old association Theia 116
• The post-disk (or primordial) spin distribution of M dwarf stars
• The CARMENES search for exoplanets around M dwarfs : Understanding the wavelength dependence of radial velocity measurements
• A sub-Neptune transiting the young field star HD 18599 at 40 pc
• gaspery: Optimized Scheduling of Radial Velocity Follow-Up Observations for Active Host Stars
• UV Spectral Characterization of Low-Mass Stars With AstroSat UVIT for Exoplanet Applications: The Case Study of HIP 23309
• Far-ultraviolet flares and variability of the young M dwarf AU Mic: a non-detection of planet c in transit at Lyman-alpha
• Radial velocity analysis of stars with debris discs
• A search for stellar siblings of the ~ 200 Myr TOI-251b planetary system
• Nearby Young Stars and Young Moving Groups
• A Search for Planetary Metastable Helium Absorption in the V1298 Tau System
• The changing face of AU Mic b: stellar spots, spin-orbit commensurability, and Transit Timing Variations as seen by CHEOPS and TESS
• Stellar halo subtraction alternative for accreting companions' characterization with integral field spectroscopy: Analytical and on-sky demonstration on the PDS70, HTLup, and YSES1 systems
• Grain Growth in Escaping Atmospheres: Implications for the Radius Inflation of Super-Puffs
• Spectroscopy of flares on AU Mic
• Tidal star-planet interaction and its observed impact on stellar activity in planet-hosting wide binary systems
• Spin-Orbit Geometry of AU Mic b and c from Back-to-Back Transits Observed Contemporaneously with Magellan PFS, LCOGT, and CHEOPS
• Atmospheric characterization of HIP 67522 b with VLT/CRIRES+. VLT/CRIRES+ suggests a heavier planet and hints at deuterium fractionation
• First detection of variable radio emission originating from the infant planetary system V1298 Tau
• AU Mic b is the Youngest Planet to have a Spin-Orbit Alignment Measurement