Table 1
Astrophysical parameters of the programme stars.
ID | Name | Sp. type | Group | log Teff | log Lbol | M | d | i ⋆ | PA |
log [K] | log [L⊙] | [M⊙] | [pc] | [°] | [°] | ||||
|
|||||||||
1 | HD 100546 | B9Vne | I | 4.02 | 1.62 | 2.4 ±0.1o | 103![]() |
42 ±5d | 145 ±5d |
2 | HD 97048 | A0pshe | I | 4.00 | 1.42 | 2.5 ±0.2o | 180![]() |
42.8![]() |
175 ±1♣ |
3 | HD 179218 | B9e | I | 4.02 | 1.88 | 2.7 ±0.2i | 240![]() |
57 ±2u | 23 ±3u |
4 | HD 101412 | B9.5V | II | 4.02 | 1.40 | 2.3 ±0.2i | 160g | 80 ±7u | 38 ±5u |
5 | HD 141569† | B9.5e | 3.98 | 1.10 | 2.00s | 99![]() |
51 ±3t | 356 ±5t | |
6 | HD 190073 | A2IVpe | II | 3.95 | 1.92 | 2.85l | ≥290y | 23![]() |
10![]() |
7 | HD 98922 | B9Ve | II | 4.02 | 2.95‡ | 2.2 ±0.8x | ≥540‡ y | 45x | – |
8 | HD 95881 | A2III/IV | II | 3.95 | 1.34n | 2.0 ±0.3n | 170 ±30n | 55n | 103n |
9 | R CrA | A5IIev | II | 3.86 | – | 3.5r | 130b | 65q | 180q |
10 | HD 135344B† | F8V | 3.82 | 1.01 | 1.7 ±0.2i | 140 ±2f | 14 ±3e | 56 ±2e | |
11 | HD 150193 | A1Ve | II | 3.95 | 1.19 | 2.3 ±0.2o | 150![]() |
38 ±9v | 358 ±6v |
12 | HD 104237 | A4Ve+sho | II | 3.92 | 1.53 | 1.96k | 116![]() |
18![]() |
– |
13 | HD 142666 | A8Ve | II | 3.88 | 1.03 | 1.8 ±0.3o | 145 ±2f | almost edge-onh | – |
Notes. The references for the values for the effective temperature of the central star log Teff, the observed bolometric luminosity log Lbol, and the distance d can be found in Acke et al. (2005) and references therein, unless indicated otherwise.
Derived from the PAH 8.6 μm image of Lagage et al. (2006).
We do not classify this source in group I/II (Sect. 2).
Ambiguity about the distance exists (Blondel & Tjin A Djie 2006).
Reference.
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