On the metallicity dependance of the [Y/Mg] - age relation for solar type stars

Abstract

Several recent studies of Solar twins in the Solar neighbourhood have shown a tight correlation between various elemental abundances and age, in particular [Y/Mg]. If this relation is real and valid for other types of stars as well as elsewhere in the Galaxy it would provide a very powerful tool to derive ages of stars without the need to resort to determining their masses (evolutionary stage) very precisely. The method would also likely work if the stellar parameters have relatively large errors. The studies presented in the recent literature span a narrow range of [Fe/H]. By studying a larger sample of Solar neighbourhood dwarfs with a much larger range in [Fe/H], we find that the relation between [Y/Mg] and age depends on the [Fe/H] of the stars. Hence, it appears that the [Y/Mg] - age relation is unique to Solar analogues.

arXiv comment5 pages, 3 figures. Accepted for publication in MNRAS Letters

References in corpus (42)

• PARSEC: stellar tracks and isochrones with the PAdova and TRieste Stellar Evolution Code
• The Apache Point Observatory Galactic Evolution Experiment (APOGEE)
• Exploring the Milky Way stellar disk. A detailed elemental abundance study of 714 F and G dwarf stars in the Solar neighbourhood
• The Chemical Evolution of the Galaxy: the two-infall model
• New constraints on the chemical evolution of the solar neighbourhood and Galactic disc(s). Improved astrophysical parameters for the Geneva-Copenhagen Survey
• Stellar Chemical Signatures And Hierarchical Galaxy Formation
• The Chemical Compositions of Galactic Disk F and G Dwarfs
• Chemical evolution with radial mixing
• The Dawes Review 2: Nucleosynthesis and stellar yields of low and intermediate-mass single stars
• Galactic Evolution of Sr, Y, Zr: A Multiplicity of Nucleosynthetic Processes
• Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program.Galactic stellar populations and planets
• The Ages of Stars
• The age structure of stellar populations in the solar vicinity. Clues of a two-phase formation history of the Milky Way disk
• Asteroseismology of Solar-Type and Red-Giant Stars
• Riding the Spiral Waves: Implications of Stellar Migration for the Properties of Galactic Disks
• The spatial structure of mono-abundance sub-populations of the Milky Way disk
• Spectral Properties of Cool Stars: Extended Abundance Analysis of 1617 Planet Search Stars
• Stellar yields from metal-rich asymptotic giant branch models
• High-precision abundances of elements in solar twin stars: Trends with stellar age and elemental condensation temperature
• Red giant masses and ages derived from carbon and nitrogen abundances
• Oxygen Abundances in Nearby FGK Stars and the Galactic Chemical Evolution of the Local Disk and Halo
• The Gaia-ESO Survey: the Galactic Thick to Thin Disc transition
• Spectroscopic determination of masses (and implied ages) for red giants
• The Gaia-ESO Survey: radial metallicity gradients and age-metallicity relation of stars in the Milky Way disk
• The Tycho-Gaia astrometric solution. How to get 2.5 million parallaxes with less than one year of Gaia data
• Carbon, nitrogen and $\alpha$-element abundances determine the formation sequence of the Galactic thick and thin disks
• Evolution and nucleosynthesis of asymptotic giant branch stellar models of low metallicity
• The solar neighbourhood age-metallicity relation - does it exist?
• The origin and evolution of r- and s-process elements in the Milky Way stellar disk
• The origin and evolution of the odd-Z iron-peak elements Sc, V, Mn, and Co in the Milky Way stellar disk
• The Solar Twin Planet Search III. The [Y/Mg] clock: estimating stellar ages of solar-type stars
• The nucleosynthetic history of elements in the Galactic disk: [X/Fe] - age relations from high-precision spectroscopy
• Accurate and homogeneous abundance patterns in solar-type stars of the solar neighbourhood: a chemo-chronological analysis
• New distances to RAVE stars
• Understanding inverse metallicity gradients in galactic discs as a consequence of inside-out formation
• The Hyades open cluster is chemically inhomogeneous
• High-precision abundances of Sc, Mn, Cu, and Ba in solar twins. Trends of element ratios with stellar age
• What determines galactic evolution?
• Atomic diffusion and mixing in old stars IV: Weak abundance trends in the globular cluster NGC 6752
• Abundance trend with condensation temperature for stars with different Galactic birth places
• The Gaia-ESO survey: Hydrogen lines in red giants directly trace stellar mass
• The Sun. A typical star in the solar neighborhood?

Cited by in corpus (48)

• The GALAH+ Survey: Third Data Release
• Chemical evolution of the Galactic bulge as traced by microlensed dwarf and subgiant stars. VI. Age and abundance structure of the stellar populations in the central sub-kpc of the Milky Way
• Abundance to age ratios in the HARPS-GTO sample with Gaia DR2: Chemical clocks for a range of [Fe/H]
• The GALAH survey: An abundance, age, and kinematic inventory of the solar neighbourhood made with TGAS
• High-precision abundances of elements in solar-type stars. Evidence of two distinct sequences in abundance-age relations
• The GALAH survey: tracing the Galactic disk with Open Clusters
• The temporal evolution of neutron-capture elements in the Galactic discs
• High-precision stellar abundances of the elements - methods and applications
• Galaxy And Mass Assembly (GAMA): A forensic SED reconstruction of the cosmic star formation history and metallicity evolution by galaxy type
• The Gaia-ESO survey: the non-universality of the age-chemical-clocks-metallicity relations in the Galactic disc
• Age-resolved chemistry of red giants in the solar neighbourhood
• High-precision abundances of elements in Kepler LEGACY stars. Verification of trends with stellar age
• Chemical (in)homogeneity and atomic diffusion in the open cluster M67
• Spectroscopic age estimates for APOGEE red-giant stars: Precise spatial and kinematic trends with age in the Galactic disc
• How magnetic activity alters what we learn from stellar spectra
• The Gaia-ESO survey: Calibrating a relationship between Age and the [C/N] abundance ratio with open clusters
• Chemical abundances of 1111 FGK stars from the HARPS GTO planet search program IV. Carbon and C/O ratios for Galactic stellar populations and planet hosts
• Chemical Evolution in the Milky Way: Rotation-based ages for APOGEE-Kepler cool dwarf stars
• Abundance-age relations with red clump stars in open clusters
• The Gaia-ESO Survey: the origin and evolution of s-process elements
• The Gaia-ESO Survey: Age-chemical-clock relations spatially resolved in the Galactic disc
• Chemical Cartography with APOGEE: Mapping Disk Populations with a Two-Process Model and Residual Abundances
• Revisiting the 16 Cygni planet host at unprecedented precision and exploring automated tools for precise abundances
• Abundances of neutron-capture elements in thin- and thick-disc stars in the solar neighbourhood
• The GALAH Survey: Chemical Clocks
• The [Y/Mg] clock works for evolved solar metallicity stars
• Observational constraints on the origin of the elements. VII. NLTE analysis of Y II lines in spectra of cool stars and implications for Y as a Galactic chemical clock
• Exploring the s-process history in the Galactic disk: Cerium abundances and gradients in Open Clusters from the OCCAM/APOGEE sample
• Magnetic-buoyancy-induced mixing in AGB Stars: a theoretical explanation of the non-universal [Y/Mg]-age relation
• The chemical composition of $\alpha$ Cen AB revisited
• Star Formation Timescales of the Halo Populations from Asteroseismology and Chemical Abundances
• The GALAH Survey: Temporal Chemical Enrichment of the Galactic Disk
• MCMCI: A code to fully characterise an exoplanetary system
• Searching for new solar twins: The Inti survey for the Northern Sky
• Neutron-capture elements in dwarf galaxies I: Chemical clocks & the short timescale of the r-process
• Testing abundance-age relations beyond solar analogues with Kepler LEGACY stars
• The consistency of chemical clocks among coeval stars
• Stellar dating using chemical clocks and Bayesian inference
• Time evolution of Ce as traced by APOGEE using giant stars observed with the Kepler, TESS and K2 missions
• Is [Y/Mg] a Reliable Age Diagnostic for FGK Stars?
• A Crystallizing White Dwarf in a Sirius-Like Quadruple System
• Traits for chemical evolution in solar twins: Trends of neutron-capture elements with stellar age
• The GALAH Survey: Dependence of elemental abundances on age and metallicity for stars in the Galactic disc
• On the validity of the spectroscopic age indicators [Y/Mg], [Y/Al], [Y/Si], [Y/Ca], and [Y/Ti] for giant stars
• Gemini-GRACES high-quality spectra of Kepler evolved stars with transiting planets I. Detailed characterization of multi-planet systems Kepler-278 and Kepler-391
• Planet signatures in the chemical composition of Sun-like stars
• PEPSI deep spectra. III. A chemical analysis of the ancient planet-host star Kepler-444
• Abundance ratios \& ages of stellar populations in HARPS-GTO sample