The ancient main-sequence solar proxy HIP 102152 unveils the activity and rotational fate of our Sun

Abstract

We present a detailed analysis of the possible future Sun's rotational evolution scenario based on the 8 Gyr-old solar twin HIP 102152. Using HARPS high-cadence observations (and TESS light curves), we analyzed the modulation of a variety of activity proxies (Ca II, HI Balmer, and Na I lines), finding a strong rotational signal of 35.7 $\pm$ 1.4 days ($\log B_{\mathrm{factor}}\sim 70$, in the case of Ca II K line). This value matches with the theoretical expectations regarding the smooth rotational evolution of the Sun towards the end of the main-sequence, validating the use of gyrochronology after solar age.

arXiv commentAccepted for publication in MNRAS Letters

References in corpus (38)

• emcee: The MCMC Hammer
• Gaia Data Release 2. Summary of the contents and survey properties
• Improved Age Estimation for Solar-Type Dwarfs Using Activity-Rotation Diagnostics
• Ages for illustrative field stars using gyrochronology: viability, limitations and errors
• On the rotational evolution of solar- and late-type stars, its magnetic origins, and the possibility of stellar gyrochronology
• Stellar magnetism: empirical trends with age and rotation
• Weakened magnetic braking as the origin of anomalously rapid rotation in old field stars
• The Mass-Dependence of Angular Momentum Evolution in Sun-Like Stars
• Toroidal versus poloidal magnetic fields in Sun-like stars: a rotation threshold
• EVEREST: Pixel Level Decorrelation of K2 Light curves
• Inferring probabilistic stellar rotation periods using Gaussian processes
• Radius Dependent Angular Momentum Evolution in Low-Mass Stars. I
• Angular Momentum Loss from Cool Stars: An Empirical Expression and Connection to Stellar Activity
• Stellar Evidence that the Solar Dynamo may be in Transition
• The Yale-Potsdam Stellar Isochrones (YaPSI)
• The Solar Twin Planet Search: The age - chromospheric activity relation
• The temporal evolution of neutron-capture elements in the Galactic discs
• Asteroseismic detection of latitudinal differential rotation in 13 Sun-like stars
• High Precision Abundances of the Old Solar Twin HIP 102152: Insights on Li Depletion from the Oldest Sun
• PEPSI deep spectra. I. The Sun-as-a-star
• Rotation periods and ages of solar analogs and solar twins revealed by the Kepler Mission
• The Impact of Metallicity on the Evolution of Rotation and Magnetic Activity of Sun-Like Stars
• The Li-age correlation: the Sun is unusually Li deficient for its age
• Do non-dipolar magnetic fields contribute to spin-down torques?
• The solar wind in time: a change in the behaviour of older winds?
• The Solar Twin Planet Search. V. Close-in, low-mass planet candidates and evidence of planet accretion in the solar twin HIP 68468
• On the correlation between Ca and Halpha solar emission and consequences for stellar activity observations
• The age-mass-metallicity-activity relation for solar-type stars: Comparisons with asteroseismology and the NGC 188 open cluster
• Constraining the evolution of stellar rotation using solar twins
• Revisiting the connection between magnetic activity, rotation period, and convective turnover time for main-sequence stars
• Temporal evolution and correlations of optical activity indicators measured in Sun-as-a-star observations
• Interplay of tidal evolution and stellar wind braking in the rotation of stars hosting massive close-in planets
• The future of the Sun: an evolved solar twin revealed by CoRoT
• Effect of metallicity on the detectability of rotational periods in solar-like stars
• Fine structure of the age-chromospheric activity relation in solar-type stars I: The Ca II infrared triplet: Absolute flux calibration
• Transition from spot to faculae domination -- An alternate explanation for the dearth of intermediate \textit{Kepler} rotation periods
• Accurate effective temperature from H$\alpha$ profiles
• Long rotation period main-sequence stars from Kepler SAP light curves

Cited by in corpus (10)

• Surface rotation and photometric activity for Kepler targets. II. G and F main-sequence stars, and cool subgiant stars
• Solar structure and evolution
• Lithium depletion and angular momentum transport in solar-type stars
• Rotation periods for cool stars in the open cluster NGC 3532. The transition from fast to slow rotation
• Further Evidence of Modified Spin-down in Sun-like Stars: Pileups in the Temperature-Period Distribution
• Rotation periods for cool stars in the open cluster Ruprecht 147 (NGC 6774): Implications for gyrochronology
• Lambda And: A post-main sequence wind from a solar-mass star
• Searching for new solar twins: The Inti survey for the Northern Sky
• Rotation of solar analogs cross-matching Kepler and Gaia DR2
• Wide binaries demonstrate the consistency of rotational evolution between open cluster and field stars