DOI: 10.5281/zenodo.15349118
title: Simulation data for "DUETS: Setting expectations for asteroseismic binaries and binary products with synthetic populations"

description:  

The paper presents results from three simulations that adopt different prescriptions for the initial orbital parameters of the binaries, namely:



E06 - Eggleton (2006)

MDS17 - Moe & Di Stefano (2017)

no-interact - non-interacting binaries, orbital parameters not simulated


Two files are included for each simulation: *_singles.csv contains the simulation data for single stars, while *_binaries.csv contains the simulated data for binary stars.
description: Description of the columns of the *_singles.csv files

Most of the columns that are present in the output file for single stars are described in Table 4 of Dal Tio et al. (2022). Additional columns are described below.



evphase: evolutionary phase of the star.

*mag: magnitudes in several photometric passbands, e.g. Kepler, TESS, Galex, Gaia (G, BP, RP, RVS) and more.

fullID: identifier for the star, not unique; the first two numbers are the NSIDE and index of the HEALPix they belong to in the simulation.

distance: true distance in pc

parallax: true parallax in arcsec

keplerprob: probability to detect solar-like oscillations, based on the Chaplin et al (2011) prescription.


Description of the columns of the *_binaries.csv files

Some columns have the same meaning as in the case of the single stars: Gc, logAge, mu0, Av, velU, velV, velW, Vrad, PMracosd, PMdec, fullID, distance, parallax. Some columns have the same meaning as for single stars, but refer to either component of a binary star by suffixing "1" or "2", e.g. evphase1 and evphase2 are the evolutionary phases of the most and least massive star in the system. Columns ending in "_ic" indicate the initial values of the parameters, e.g. P_ic is the initial period of the binary, in days.



logL: logarithm of the total luminosity of the system, expressed in solar luminosities.

mbolmag: bolometric magnitude of the unresolved binary.

*mag: apparent magnitudes of the unresolved system in all the simulated photometric systems.

Time: age of the binary in Myr.

Mt1, Mt2: current mass in solar masses.

logL1, logL2: logarithm of the luminosity, in solar units.

logR1, logR2: radius in solar radii.

logT1,logT2: effective temperature in K.

spin1/spin2: stellar spin in rad/yr.

R/Rlob1, R/Rlob2: ratio between stellar radius and Roche lobe radius.

P: orbital period in days.

a: semi-major axis in solar radii.

e: eccentricity of the orbit.

mbol1, mbol2: bolometric magnitude.

Kepler1,..., W21 and Kepler2,..., W22: apparent magnitudes in all photometric passbands used in the simulation.

Mi1_ic, Mi2_ic: initial mass of the most and least massive star in solar masses.

numax1, numax2: numax value computed from asteroseismic relations.

keplerprob1, keplerprob2: probability to detect solar like oscillations, computed following Miglio et al. (2014).

keplerprob_bin: probability to detect solar-like oscillations from both components of a binary (keplerprob1 * keplerprob2).

rlobe1, rlobe2: radius of a sphere with the same volume as the Roche lobe of the star.

theta: position angle of the less massive star in the orbit with respect to the semi-major axis, counterclockwise.

separation_Rsun: separation in solar radii between the components of the binary given theta.

angular_sep_rad: on-sky separation in radians of the binary system components, assuming an inclination i=90˚.


Please also note that the columns in the case of the non-interactign binaries follows the schema for single stars.