SIMBAD references

2017MNRAS.471..770M - Mon. Not. R. Astron. Soc., 471, 770-791 (2017/October-2)

Fundamental parameters and infrared excesses of Tycho-Gaia stars.


Abstract (from CDS):

Effective temperatures and luminosities are calculated for 1475 921 Tycho-2 and 107 145 Hipparcos stars, based on distances from Gaia Data Release 1. Parameters are derived by comparing multi-wavelength archival photometry to BT-SETTL model atmospheres. The 1σ uncertainties for the Tycho-2 and Hipparcos stars are ±137 and ±125 K in temperature and ±35 and ±19 per cent in luminosity. The luminosity uncertainty is dominated by that of the Gaia parallax. Evidence for infrared excess between 4.6 and 25 µm is found for 4256 stars, of which 1883 are strong candidates. These include asymptotic giant branch (AGB) stars, Cepheids, Herbig Ae/Be stars, young stellar objects and other sources. We briefly demonstrate the capabilities of this data set by exploring local interstellar extinction, the onset of dust production in AGB stars, the age and metallicity gradients of the solar neighbourhood and structure within the Gould Belt. We close by discussing the potential impact of future Gaia data releases.

Abstract Copyright: © 2017 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): circumstellar matter - stars: fundamental parameters - Hertzsprung-Russell and colour-magnitude diagrams - stars: mass-loss - solar neighbourhood - infrared: stars - infrared: stars

VizieR on-line data: <Available at CDS (J/MNRAS/471/770): table1.dat table2.dat table3.dat>

Simbad objects: 37

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