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Table 2

Black-body dust temperatures and fractional dust luminosities for the DUNES_DB stars with excesses.

HIP HD SpT TBB RBB Ldust/L∗
(K) (au)
Stars with confirmed excesses
5862 7570 F8 V 96 12 2.4 × 10-6
15510* 20794 G8 V 32 60 6.3 × 10-7
16852* 22484 F9 V 87 18 8.4 × 10-6
23693 33262 F7 V 82 14 2.7 × 10-6
57757 102870 F8 V 38 100 8.8 × 10-7
61174* 109085 F2 V 40 107 2.2 × 10-5
64924* 115617 G5 V 50 28 2.4 × 10-5
71284 128167 F3 V 111 11 1.1 × 10-5
88745* 165908 F7 V 45 52 1.1 × 10-5
113283 216803 K4 Vp – – <2.0 × 10-6
116771 222368 F7 V 51 54 1.1 × 10-6
Stars with χ100 and/or χ160> 3.0 considered dubious excesses
1599 1581 F9 V 18 264 9.6 × 10-7
36366 58946 F0 V... 21 405 5.7 × 10-7
37279 61421 F5 IV-V 113 16 1.5 × 10-6
44248 76943 F5 V 27 243 4.6 × 10-7
59199 105452 F0 IV-V 21 358 6.9 × 10-7
61941 110379J F0 V+... 30 248 3.3 × 10-7
72659 131156 G8 V+K4 V ~40 40 2.9 × 10-6
73695 133640 G2 V+G2 V 23 182 1.7 × 10-6
77257 141004 G0 V 33 102 7.6 × 10-7

Notes.

(*)

denotes that the source is extended. Modified black bodies were fitted for HIP 5862 and HIP 23693 to compute these excesses (see text for details); the TBB listed in the table correspond to pure black bodies fitted excluding the PACS fluxes at 160 μm, the corresponding Ldust/L∗ for those temperatures being 5.22 × 10-6 and 4.42 × 10-6, respectively. For HIP 61174 two black bodies were fitted to the warm and cold excesses, the warm excess corresponds to a TBB = 300 K, which implies Ldust/L∗ = 1.65 × 10-4. For HIP 113283 – a cold disc candidate – there is only one excess flux density at 160 μm and a black-body fit is not feasible; the value in italics for the upper limit of Ldust/L∗ is just indicative and would correspond to a black body of 20 K normalized to the flux at 160 μm.

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