Name | AU Mic b | ||
Planet Status | Confirmed | ||
Discovered in | 2020 | ||
Mass | 0.116 ( -0.05 +0.19 ) MJ | ![]() |
+ |
Mass*sin(i) | — | ||
Semi-Major Axis | 0.08305 ( -0.0016 +0.00092 ) AU | ![]() |
+ |
Orbital Period | 8.46303507 ( -2.1e-07 +2.9e-07 ) day | ![]() |
+ |
Eccentricity | 0.012 ( -0.063 +0.089 ) | ![]() |
+ |
ω | 356.2 ( -2.5 +1.8 ) deg | ![]() |
+ |
Tperi | — | ||
Radius | 0.4571 ( -0.009 +0.0055 ) RJ | ![]() |
+ |
Inclination | 89.9904 ( -0.0019 +0.003 ) deg | ![]() |
+ |
Update | 2023-02-20 | ||
Detection Method | Primary Transit | ||
Mass Detection Method | Radial Velocity | ||
Radius Detection Method | Primary Transit | ||
Primary transit | 2458330.39017 ( -0.00054 +0.0009 ) JD | ![]() |
+ |
Secondary transit | — | ||
λ | — | ||
Impact Parameter b | 0.0032 ( -0.012 +0.00065 ) | ![]() |
|
Time Vr=0 | — | ||
Velocity Semiamplitude K | 11.2 ( -4.7 +19.0 ) m/s | ![]() |
+ |
Calculated temperature | 569.5 ( -4.5 +5.1 ) K | ![]() |
|
Measured temperature | — | ||
Hottest point longitude | — | ||
Geometric albedo | — | ||
Surface gravity log(g/gH) | — | ||
Alternate Names | — |
Name | AU Mic | ||
Distance | 9.79 (± 0.04) pc | ![]() |
|
Spectral type | M1V | ||
Apparent magnitude V | 8.6 | ||
Mass | 0.5 (± 0.03) MSun | ![]() |
|
Age | 0.022 (± 0.003) Gyr | ![]() |
|
Effective temperature | 3700.0 (± 100.0) K | ![]() |
|
Radius | 0.75 (± 0.03) RSun | ![]() |
|
Metallicity [Fe/H] | — | ||
Detected Disc | — | ||
Magnetic Field | — | ||
RA2000 | 20:45:10.0 | ||
Dec2000 | -31:20:27 | ||
Alternate Names | |||
Planetary system | 3 planets |
Validating AU Microscopii d with Transit Timing Variations
2023
WITTROCK J., PLAVCHAN P., CALE B., BARCLAY Th., GILBERT E. et al.
Astron. J., submitted
arxiv
The magnetic field and multiple planets of the young dwarf AU~Mic
2023
DONATI J.-F., FINOCIETY B., KLEIN B., MOUTOU C., GAIDOS E. et al.
MNRAS, in press
paper arxiv
Planetary Parameters, XUV Environments, and Mass-loss Rates for Nearby Gaseous Planets with X-Ray-detected Host Stars
2023
SPINELLI R., GALLO H., HAARDT F., CALDIROLI A., BIASSONI F. et al.
Astron. J, 165, 200
paper
A Machine Learning approach for correcting radial velocities using physical observables
2023
PERGER M., ANGLADA-ESCUDE G., BARUCH D., LAFARGA M., RIBAS I. et al.
Astron. & Astrophys., 672, A118
paper arxiv
Orbital Dynamics and the Evolution of Planetary Habitability in the AU Mic System
2022
KANE S., FOLEY B., HILL M., UNTERBORN C., BARCLAY Th. et al.
Astron. J., 163, 20
paper arxiv
One year of AU Mic with HARPS: I - measuring the masses of the two transiting planets
2022
ZICHER N., BARRAGAN O., KLEIN B., AIGRAIN S., OWEN J. et al.
MNRAS, submitted
arxiv
Transit timing variations of AU Microscopii b and c
2022
SZABO G., GARAI A., BRANDEKER A., GANDOLFI D., WILSON T. et al.
Astron. & Astrophys., 659, L7
paper arxiv
A model for spin-orbit commensurability and synchronous starspot activity in stars with close-by planets
2022
LANZA A.
Astron. & Astrophys., 658, A195
paper arxiv
Transit Timing Variations for AU Microscopii b and c
2022
WITTROCK J., DREISLER S., REEFE M., MORRIS B., PLAVCHAN P. et al.
Astron. J., 164, 27
paper arxiv
Simulating the Space Weather in the AU Mic System: Stellar Winds and Extreme Coronal Mass Ejections
2022
ALVARADO-GOMEZ J., COHEN O., DRAKE J., FRASCHETTI F., POPPENHÄGER K. et al.
ApJ, 928, 147
paper arxiv
The strong suppression of Galactic cosmic rays reaching AU Mic b, c and Prox Cen b
2022
MESQUITA A., RODGERS-LEE D., VIDOTTO A. & KAVANAGH R.
MNRAS, 515, 1218
paper arxiv
AU Microscopii in the FUV: Observations in Quiescence, During Flares, and Implications for AU Mic b and c
2022
FEINSTEIN A., FRANCE K., YOUNGBLOOD A., DUVVURI G., TEAL D. et al.
Astron. J., 164, 110
paper arxiv
Space Weather-driven Variations in Lyα Absorption Signatures of Exoplanet Atmospheric Escape: MHD Simulations and the Case of AU Mic b
2022
COHEN O., ALVARADO-GOMEZ J., DRAKE J., HARBACH L. GARRAFFO C. & FRASCHETTI F.
ApJ, submitted
arxiv
Searching for flaring star-planet interactions in AU Mic TESS observations
2022
ILIN E. & POPPENHÄGER K.
MNRAS, 513, 4579
paper arxiv
One year of AU Mic with HARPS: II -- stellar activity and star-planet interaction
2022
KLEIN B., ZICHER N., KAVANAGH R., NIELSEN L., AIGRAIN S. et al.
MNRAS, 512, 5067
paper arxiv
Stumbling over planetary building blocks: AU Microscopii as an example of the challenge of retrieving debris-disk dust properties
2022
ARNOLD J., WEINBERGER A., VIDEEN G. & ZUBKO E.
ApJ, 930, 123
paper arxiv
Flares, Rotation, and Planets of the AU Mic System from TESS Observations
2022
GILBERT E., BARCLAY Th., QUINTANA E., WALKOWICZ L., VEGA L. et al.
Astron. J., 163, 147
paper arxiv
CHEOPS
2021
FORTIER A.
Spatium, 48
paper
Planet-induced radio emission from the coronae of M dwarfs: the case of Prox Cen and AU Mic
2021
KAVANAGH R., VIDOTTO A., KLEIN B., JARDINE M., DONATI J.-F. & FIONNAGAIN D.
MNRAS, accepted
arxiv
Planet-induced radio emission from the coronae of M dwarfs
2021
KAVANAGH R., VIDOTTO A., KLEIN B., JARDINE M., DONATI J.-F. et al.
Proceedings of the 20.5th Cambridge Workshop on Cool Stars, Stellar Systems, and the Sun
arxiv
The changing face of AU Mic b: stellar spots, spin-orbit commensurability, and Transit Timing Variations as seen by CHEOPS and TESS
2021
SZABO G., GANDOLFI D?n BRANDECKER A., CSIZMADIA Sz., GARAI Z. et al.
Astron. & Astrophys., 654, A159
paper arxiv
Diving Beneath the Sea of Stellar Activity: Chromatic Radial Velocities of the Young AU Mic Planetary System
2021
CALE B., REEFE M., PLAVCHAN P., TANNER A., GAIDOS E. et al.
ApJ, submitted
arxiv
The Youngest Planet to Have a Spin-Orbit Alignment Measurement AU Mic b
2020
ADDISON B., HORNER J., WITTENMYER R., PLAVCHAN P., WIRIGHT D. et al.
Astron. J., 162, 137
paper arxiv
New constraints on the planetary system around the young active star AU Mic. Two transiting warm Neptunes near mean-motion resonance
2020
MARTIOLI E., HEBRARD G., CORREIA A., LASKAR J. & LECAVELIER DES ETANGS A.
Astron. & Astrophys., 649, A177
paper arxiv
Investigating the young AU~Mic system with SPIRou: large-scale stellar magnetic field and close-in planet mass
2020
KEIN B., DONATI J.-F., MOUTOU C., DELFOSSE X., BONFILS X. et al.
MNRAS, 502, 188
paper arxiv
Magnetic Field of the Active Planet-hosting M Dwarf AU Mic
2020
KOCHOKHOV O. & REINERS A.
ApJ, accepted
arxiv
A planet within the debris disk around the pre-main-sequence star AU Microscopii
2020
PLAVCHAN P., BARCLAY Th., GAGNE J., GAO P., CALE B. et al.
Nature, 582, 497
paper arxiv
Limits on the Spin-Orbit Angle and Atmospheric Escape for the 22 Myr-old Planet AU Mic b
2020
HIRANO T., KRISHNAMURTHY V., GAIDOS E., FLEWELLING H., MANN A. et al.
ApJ. Letters, 899, L13
paper arxiv
Spin-orbit alignment and magnetic activity in the young planetary system AU Mic
2020
MARTIOLI E., HEBRARD G., MOUTOU C., DONATI J.-F., ARTIGAU E. et al.
Astron. & Astrophys., 641, L1
paper arxiv
The dichotomy of atmospheric escape in AU Mic b
2020
CAROLAN S., VIDOTTO A., PLAVCHAN P., VILLARREAL D'ANGELO C. & HAZRA G.
MNRAS, 498, L53
paper arxiv
Transmission spectroscopy and Rossiter-McLaughlin measurements of the young Neptune orbiting AU Mic
2020
PALLE R., OSHAGH M., CASASAYAS-BARRIS N., HIRANO T. et al.
Astron. & Astrophys., 643, A25
paper arxiv
Observations of fast-moving features in the debris disk of AU Mic on a three-year timescale: Confirmation and new discoveries
2018
BOCCALETTI A., SEZESTRE E., LAGRANGE A.-M., THEBAULT Ph., GRATTON R. et al.
Astron. & Astrophys., in press
paper arxiv