| discov_num |
notes |
refcode |
| RST 137 |
The primary is AB Dor, a rapidly rotating, spotted star which shows |
|
|
both X-ray flares and microwave emission. |
|
| CLO 10 |
Aa,Ab: Close et al. discovered a companion to the A component at a |
Clo2005 |
|
separation of 0".156, which they refer to as the A and C components |
|
|
(the companion was labelled as C when detected as an astrometric |
|
|
reflex motion of AB Dor in observations by VLBI and Hipparcos). |
|
|
Based on the astrometric orbit and the AO resolution, the mass of the |
|
|
Ab companion is estimated at 0.090 +/- 0.005 Msun, just above the mass |
|
|
of a brown dwarf. AO spectroscopy yields a spectral type of M8 +/- 1. |
|
|
Mass of Aa & Ab = 0.90(0.08) & 0.090(0.008) \msun. Model comparison |
Azu2017 |
|
gives age of Aa & Ab = 40-50 Myr & 25-120 Myr. |
|
| SHY 27 |
AC: HIP 25647 + HIP 31878. C component = C component of 06225-6013 |
|
|
and 06380-6132. |
|
|
AD: HIP 25647 + HIP 22738. D component = A component of 04535-5551. |
|
|
AE: HIP 25647 + HIP 26373. E component = A component of 05369-4758 |
|
|
= D component of 06225-6013. |
|
| CLO 10 |
Ba,Bb: Close et al. also resolved the B component into a 66mas pair. |
Clo2005 |
|
Spectral types of Ba and Bb are estimated by Janson et al. at M5 and |
Jnn2007 |
|
M5-6, masses at 0.13-0.2 and 0.11-0.18 Msun. |
|
|
Aa is a rapidly-rotating spotted star (0.09 mag variability in V). |
Boc2008 |
|
Close et al. (2007) find spectral types for Aa, Ab, Ba, and Bb of K1, |
Clo2007b |
|
M5.5 +/- 1.0, M3.5 +/- 1.5, M4.5 +/- 1.5. Masses are 0.865 +/- 0.034, |
|
|
0.090 +/- 0.005, <0.25, <0.15 Msun; the system age is 75 +/- 25 Myr |
|
|
and the distance 14.9 +/- 0.1 pc. |
|
|
Ba,Bb: Wolter et al. (2014) made a multiwavelength study of AB Dor |
|
|
Ba,Bb. They derive effective temperatures 3260-3360 and 3200-3300K for |
|
|
Ba and Bb, respectively. Predicted system mass is 0.45-0.71 Msun, |
|
|
age 50-100 Myr. (Ed note: Inclination for Wolter et al orbit (182deg) |
WoU2014 |
|
appears to be off by 90deg; changed to 92deg in orbit catalog) |
|
|
Ba,Bb: Azulay et al. (2015) derive an orbit for AB Dor B, yielding a |
|
|
parallax of 66.4 +/- 0.5 mas, as well as component masses for Ba and |
|
|
Bb of 0.28 +/- 0.05 and 0.25 +/- 0.05 Msun. |
Azu2015 |
| refcode |
metd |
author |
reference |
| Azu2015 |
K j |
Azulay, R., Guirado, J.C., Marcaide, J.M., Marti-Vidal, I., Ros, E., Jauncey, D., |
2015A&A...578A..16A |
| Azu2015 |
|
Lestrade, J.-F., Preston, R.A., Reynolds, J.E., Tognelli, E., & Ventura, P. |
|
| Azu2015 |
|
A&A 578, A16, 2015 |
|
| Azu2017 |
Ao+ - |
Azulay, R., Guirado, J.C., Marcaide, J.M., Marti-Vidal, I., Ros, E., Tognelli, E., |
2017A&A...607A..10A |
| Azu2017 |
+orb |
Jauncey, D.L., Lestrade, J-F. & Reynolds, J.E. |
|
| Azu2017 |
|
A&A 607, A10, 2017 |
|
| Boc2008 |
Ao j |
Boccaletti, A., Chauvin, G., Baudoz, P., & Beuzit, J.-L. |
2008A&A...482..939B |
| Boc2008 |
|
A&A 482, 939, 2008 |
|
| Clo2005 |
A j |
Close, L.M., Lenzen, R., Guirado, J.C., Nielsen, E.L., Mamajek, E.E., |
2005Natur.433..286C |
| Clo2005 |
+Ao |
Brandner, W., Hartung, M., Lidman, C., & Biller, B. |
|
| Clo2005 |
|
Nature 433, 286, 2005 |
|
| Clo2007b |
Ao u |
Close, L.M., Thatte, N., Nielsen, E.L., Abuter, R., Clarke, F., & Tecza, M. |
2007ApJ...665..736C |
| Clo2007b |
|
ApJ 665, 736, 2007 |
|
| Jnn2007 |
A j |
Janson, M., Brandner, W., Lenzen, R., Close, L., Nielsen, E., Hartung, M., |
2007A&A...462..615J |
| Jnn2007 |
|
Henning, T., & Rouy, H. |
|
| Jnn2007 |
|
A&A 462, 615, 2007 |
|
| WoU2014 |
A j |
Wolter, U., Czesla, S., Fuhrmeister, B., Robrade, J., Engels, D., Wieringa, M., & |
2014A&A...570A..95W |
| WoU2014 |
+orb |
Schmitt, J.H.M.M. |
|
| WoU2014 |
|
A&A 570, A95, 2014 |
|
