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Table 4

Colour indices and photometric effective temperatures (given in K).

Star B − V BT − VT b − y 1 β    1
(B − V)

(BT − VT)

(b − y)

(β)

(mean)

HD 1835 0.659 0.758 0.420 2.606 5822 5804 5796 5908 5826 5846
HD 20807 0.600 0.380 2.592 5878 5956 5745 5876 5860
HD 26491 0.636 0.697 0.404 2.587 5803 5844 5827 5685 5797 5774
HD 33021 0.625 0.682 0.402 2.590 5805 5844 5814 5721 5800 5823
HD 39587 0.594 0.659 0.376 2.599 5955 5965 6031 5827 5956 5966
HD 43834 0.720 0.829 0.442 2.601 5611 5600 5629 5850 5662 5614
HD 50806 0.708 0.800 0.437 5618 5634 5639 5631 5636
HD 53705 0.624 0.685 0.396 2.595 5803 5830 5850 5780 5820 5821
HD 84117 0.530 0.581 0.339 2.622 6134 6136 6260 6089 6166 6188
HD 102365 0.660 0.408 2.588 5673 5755 5697 5714 5644
HD 112164 0.640 0.696 0.392 2.632 5909 5984 6000 6200 6015 5965
HD 114613 0.700 0.796 0.441 5683 5693 5646 5671 5732
HD 115383 0.590 0.644 0.371 2.615 6029 6073 6114 6011 6064 5952
HD 115617 0.710 0.434 2.582 5606 5653 5625 5631 5562
HD 117176 0.710 0.804 0.445 2.576 5593 5601 5571 5552 5580 5493
HD 128620 5820
HD 141004 0.600 0.672 0.382 2.606 5946 5944 5999 5908 5955 5869
HD 146233 0.650 0.736 0.398 2.596 5801 5798 5899 5792 5830 5790
HD 147513 0.620 0.703 0.391 2.609 5888 5873 5942 5942 5913 5840
HD 160691 0.700 0.786 0.432 5721 5762 5734 5739 5678
HD 177565 0.705 0.803 0.436 2.584 5646 5650 5660 5649 5652 5673
HD 181321 0.628 0.694 0.396 5836 5861 5887 5864 5845
HD 188376 0.750 0.458 5485 5497 5492 5436
HD 189567 0.648 0.718 0.410 2.583 5713 5730 5745 5637 5712 5697
HD 196761 0.719 0.828 0.441 5474 5431 5525 5482 5544

Notes. The values of (B − V) and (BT − VT) were taken from the Hipparcos Catalogue. The Hα effective temperatures from Lyra & Porto de Mello (2005) are also listed. For the star HD 128620 (α Cen A), the photometric determination of Teff was not performed (see discussion in Sect. 3.4).

References. 1Crawford (1975); Fabregat & Reglero (1990); Ferro et al. (1990); Gronbech & Olsen (1976, 1977); Olsen (1977, 1983, 1993, 1994a,b); Olsen & Perry (1984); Perry et al. (1987); Reglero & Fabregat (1991); Schuster & Nissen (1988); Twarog (1980).

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