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Home All issues Volume 515 (June 2010) A&A, 515 (2010) A95 Full HTML
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Table 1:

The sample.

Star name 		Stellar type Age Distancea IRAS fluxes (mJy)b
    Myr pc 12 $\mu $m 25 $\mu $m
HD 3003 A0V 50c 47 148 + 16 ($\pm$20) 34 + 241 ($\pm$20)
HD 23281 A6V 626d 43 251 + 36 ($\pm$20) 59 + 107 ($\pm$28)
HD 23432 B8V 100e 119 127 + 256 ($\pm$43) 29 + 1159 ($\pm$42)
HD 31295 A0V 100e 37 336 + 238 ($\pm$65) 78 - 110($\pm$121)
HD 38206 A0V 9f 69 130 + 7 ($\pm$23) 30 + 67 ($\pm$21)
$\lambda $Gemg A3V 560f 29 1166 + 214 ($\pm$28) 271 + 161 ($\pm$52)
HD 71155 A0V 169c 38 675 + 162 ($\pm$31) 157 + 249 ($\pm$41)
HD 75416 B8V 5f 97 134 + 86 ($\pm$22) 31 + 86 ($\pm$38)
HD 80950 A0V 80f 81 120 - 5 ($\pm$26) 28 + 101 ($\pm$17)
HD 141795 Am 450e 22 1154 + 67 ($\pm$25) 269 + 141 ($\pm$28)
$\eta$Teli A0V 12h 48 263 + 138 ($\pm$34) 61 + 394 ($\pm$22)

Notes. (a) Distance from parallax in Hipparcos; (b) fluxes are shown as star + excess ($\pm$error); (c) age taken from Song et al. (2001); (d) age taken from Kunzli & North (1998); (e) age determined from theoretical evolutionary tracks of Song et al. (2001), see discussion in text; (f) age taken from Rieke et al. (2005); (g) HD 56537; (h) Age from $\beta$ Pictoris association membership, Zuckerman et al. (2001); (i) HD 181296. For those sources without ages listed in the literature (HD 23432, HD 31295 and HD 141795) the $\beta$ and c1 magnitudes as listed in Hauck & Mermilliod (1998) were used to determine $T_{\rm {eff}}$ and $\log(g)$ from the grids of Moon & Dworetsky (1985). Then the theoretical evolutionary tracks of Song et al. (2001) were used to determine the approximate ages for these stars.


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