Table 7
Properties of the β Pictoris system.
| Parameter | β Pictoris A | β Pictoris b | References |
|
|
|||
| d (pc) | 19.44 ± 0.05 | – | 2 |
| Age (Myr) |
|
– | 3 |
| J (mag) | 3.524 ± 0.013 | 14.0 ± 0.3 | 1, 4 |
| H (mag) | 3.491 ± 0.009 | 13.5 ± 0.2 | 1, 4 |
| Ks (mag) | 3.451 ± 0.009 | 12.6 ± 0.1 | 4, 5 |
| L′ (mag) | 3.454 ± 0.003(a) | 11.0 ± 0.2 | 1, 5, 6 |
| NB_4.05 (mag) | – | 11.20 ± 0.23 | 7 |
| M′ (mag) | 3.458 ± 0.009(a) | 11.0 ± 0.3 | 1, 6 |
| MJ (mag) | 2.081 ± 0.014 | 12.6 ± 0.3 | 1 |
| MH (mag) | 2.048 ± 0.011 | 12.0 ± 0.2 | 1 |
| MKs (mag) | 2.007 ± 0.011 | 11.2 ± 0.1 | 5 |
| ML′ (mag) | 2.011 ± 0.006 | 9.5 ± 0.2 | 1, 5 |
| MNB_4.05 (mag) | – | 9.76 ± 0.24 | 7 |
| MM′ (mag) | 2.014 ± 0.011 | 9.5 ± 0.3 | 1 |
| Spectral type | A6V | L2γ ± 2: | 1, 8 |
| Teff (K) | 8052, 8036 | 1700 ± 100 | 1, 8, 9 |
| log g (dex) | 4.15, 4.21 | 4.0 ± 0.5 | 1, 8, 9 |
| M/H (dex) | +0.05, +0.11 | 0.0 ? | 1, 8, 9 |
| log 10 (L / L⊙) | 0.91 ± 0.01(b) | −3.87 ± 0.08 | 1 |
| Mass (M⊙) | 1.70 ± 0.05(b) |
(c)
|
1 |
Notes.
Using the evolutionary tracks of Ekström et al. (2012) with and without rotation.
Reference. (1) – this work; (2) – van Leeuwen (2007); (3) – Zuckerman et al. (2001); (4) – van der Bliek et al. (1996b); (5) – Bonnefoy et al. (2011); (6) – Bouchet et al. (1991); (7) – Quanz et al. (2010); (8) – Gray et al. (2006); (9) – Saffe et al. (2008).
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.