Determination of stellar ages from isochrones: Bayesian estimation versus isochrone fitting

By B. Jørgensen, L. Lindegren. 2005

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Subfields: Astronomy and Astrophysics, Instrumentation

View Paper: https://www.semanticscholar.org/paper/00ac3a9698651c796c3c8b1ce96a7b367267ab5b

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Citations in the corpus

FUNDAMENTAL PARAMETERS AND CHEMICAL COMPOSITION OF ARCTURUS (2011, background): “…out that the determination of ages and other stellar parameters from isochrones can be severely affected by a number of statistical biases (Nordström et al. 2004; Pont & Eyer 2004; Jørgensen & Lindegren 2005; da Silva et al. 2006) which can be addressed, for example, using Bayesian methods.”
Standing on the Shoulders of Dwarfs: the Kepler Asteroseismic LEGACY Sample. II. Radii, Masses, and Ages (2016, unknown): “More sophisticated statistical treatments, particularly Bayesian estimates (e.g., Jørgensen & Lindegren 2005; Takeda et al. 2007), are needed to obtain unbiased ages and, even then, uncertainties can be large.”
Oxygen abundances in nearby stars - Clues to the formation and evolution of the Galactic disk (2007, methodology): “In addition, since the age determination from isochrones is subject to statistical biases (e.g., Pont & Eyer 2004; Jørgensen & Lindegren 2005), we compared our ages with those derived using the Pont & Eyer (2004) method, which uses Bayesian statistics and a procedure that attempts to eliminate…”
The age structure of stellar populations in the solar vicinity Clues of a two-phase formation history of the Milky Way disk (2013, methodology): “We derived individual ages using the bayesian method of Jørgensen & Lindegren (2005), adopting the Yonsei-Yale (Y2) set of isochrones (version 2, Demarque et al. 2004).”
The Gaia-ESO Survey : radial metallicity gradients and age-metallicity relation of stars in the Milky Way disk (2014, methodology): “Also sophisticated methods based on Bayesian inferenc are now available that combine in a systematic way observational information and stellar evolution theory (Pont & Eyer 2004; Jørgensen & Lindegren 2005; Schoenrich & Bergemann 2013; Serenelli et al. 2013).”
Basic physical parameters of a selected sample of evolved stars (2006, methodology): “Since one of the main achievements of this work is the application of the Jørgensen & Lindegren (2005) method to a sample of giants, it is important to illustrate the different situations we encounter for stars along the RGB. Figures 4 and 5 provide a few examples of PDFs derived for stars in…”
The Ages of Stars (2007, methodology): “Takeda et al. (2007) also developed a bayesian method that they applied to a large sample of G dwarfs with masses from about 0.8 to 1.3M⊙, significantly lower masses than what either Pont & Eyer (2004) or Jørgensen & Lindegren (2005) considered.”
New constraints on the chemical evolution of the solar neighbourhood and galactic disc(s) - improved astrophysical parameters for the Geneva-Copenhagen Survey (2011, methodology): “Biases of this kind can be accounted for by taking a Bayesian approach as in Pont & Eyer (2004) and Jørgensen & Lindegren (2005), who did a Bayesian age determination on the old GCSIII.”
Measuring the vertical age structure of the Galactic disc using asteroseismology and SAGA (2015, background): “…of view however, even when accurate astrometric distances are available to allow comparison of stars with isochrones, the derived ages are still highly uncertain, and statistical techniques are required to avoid biases (e.g. Pont & Eyer 2004; Jørgensen & Lindegren 2005; Serenelli et al. 2013).”
The Solar Twin Planet Search. I. Fundamental parameters of the stellar sample (2014, background): “Isochrone age determinations are subject to a number of sampling biases whose impact can be minimized using Bayesian statistics (e.g., Pont & Eyer 2004; Jørgensen & Lindegren 2005; da Silva et al. 2006; Casagrande et al. 2011).”
Radial mixing and the transition between the thick and thin Galactic discs (2008, methodology): “All the details are given in Jørgensen & Lindegren (2005).”
REVISED STELLAR PROPERTIES OF KEPLER TARGETS FOR THE QUARTER 1–16 TRANSIT DETECTION RUN (2013, methodology): “Matching observations to stellar isochrones is a non-trivial task, with important systematics such as the terminal age bias (Pont & Eyer 2004; Jørgensen & Lindegren 2005; Casagrande et al. 2011; Serenelli et al. 2013).”
Stellar ages and masses in the solar neighbourhood: Bayesian analysis using spectroscopy and Gaia DR1 parallaxes (2018, methodology): “…of priors and by employing the full set of observational constraints together with their uncertainties within a Bayesian framework (e.g., Pont & Eyer 2004; Jørgensen & Lindegren 2005; Serenelli et al. 2013; Maxted et al. 2015a; van Dyk et al. 2009; Schneider et al. 2016, 2014; Maxted et al. 2015b).”
THE MASS DEPENDENCE BETWEEN PROTOPLANETARY DISKS AND THEIR STELLAR HOSTS (2013, methodology): “Employing the Jørgensen & Lindegren (2005) method for estimating stellar masses and ages from the behavior of pre-main sequence model grids in the H-R diagram, we found that this correlation corresponds to Lmm ∝ M1.”
Reconstructing the star formation history of the Milky Way disc(s) from chemical abundances (2014, unknown): “We derived individual ages using the bayesian method of Jørgensen & Lindegren (2005), adopting the Yonsei-Yale 1.2 1.0 0.8 0.6 0.4 0.2 0.0 0.2 0.4 [Fe/H] 0.10 0.05 0.00 0.05 0.10 0.15 0.20 0.25 0.30 0.35 [S i/ Fe ] (a) (Y2) set of isochrones (version 2, Demarque et al. 2004).”