How dusty is α Centauri? - Excess or non-excess over the infrared photospheres of main-sequence stars

J. Wiegert; R. Liseau; P. Thébault; G. Olofsson; A. Mora; G. Bryden; J. P. Marshall; C. Eiroa; B. Montesinos; D. Ardila; J. C. Augereau; A. Bayo Aran; W. C. Danchi; C. del Burgo; S. Ertel; M. C. W. Fridlund; M. Hajigholi; A. V. Krivov; G. L. Pilbratt; A. Roberge; G. J. White; S. Wolf

doi:10.1051/0004-6361/201321887

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Volume 563 (March 2014)

A&A, 563 (2014) A102

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Fig. 9

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Face-on circumstellar test-particle discs after ~ 10³ periods shown with the stars close to periapsis. α Cen A is colour-coded blue (the left star and its orbit), and α Cen B is colour-coded red (the right star and its orbit). The green circles represent a_crit around the stars and the magenta circles show estimates of their respective snow lines.

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