Close stellar conjunctions of α Centauri A and B until 2050 - An mK = 7.8 star may enter the Einstein ring of α Cen A in 2028

@article{Kervella2016CloseSC,
  title={Close stellar conjunctions of $\alpha$ Centauri A and B until 2050 - An mK = 7.8 star may enter the Einstein ring of $\alpha$ Cen A in 2028},
  author={Pierre Kervella and Franccois Mignard and Antoine M'erand and Fr'ed'eric Th'evenin},
  journal={Astronomy and Astrophysics},
  year={2016},
  volume={594}
}
The rapid proper motion of the α Cen pair (≈ 3.7 arcsec yr −1) and its location close to the galactic plane on a rich stellar background combine constructively to make them excellent candidates for close stellar conjunctions with more distant stars. Adding new differential astrometry to archival data, we have refined the orbital parameters, barycentric proper motion and parallax of α Cen and compute its apparent trajectory on sky over the coming decades. Based on NTT/SUSI2, NTT/SOFI and VLT… 

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The chemical composition of α Centauri AB revisited

  • T. Morel
  • Physics, Geology
    Astronomy & Astrophysics
  • 2018
The two solar-like stars α Cen A and B have long served as cornerstones for stellar physics in virtue of their immediate proximity, association in a visual binary, and masses that bracket that of the

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The photospheric radius is one of the fundamental parameters governing the radiative equilibrium of a star. We report new observations of the nearest solar-type stars α  Centauri A (G2V) and B (K1V)

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Forward asteroseismic modelling plays an important role towards a complete understanding of the physics taking place in deep stellar interiors. With a dynamical mass in the range over which models

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