| discov_num |
notes |
refcode |
| YSC 139 |
Data at hand suggest that this F8 pair with small magnitude difference |
|
|
is viewed nearly edge-on. The mass implied by the spectral type is |
|
|
perhaps 2-2.5 Msun, if the system were to have solar metallicity, |
|
|
again lower than that implied by the orbital elements. The metallicity |
|
|
of the system is -0.31 according to the Geneva-Copenhagen Catalog |
|
|
(Nordstrom et al. 2004), which would tend to lower the mass at a given |
Nrd2004 |
|
spectral type, thus making the discrepancy worse. Nonetheless, given |
|
|
the large uncertainty in dynamical mass, it is no worse than a 2 sigma |
|
|
difference at this point. The mass ratio in the Geneva-Copenhagen |
|
|
catalog is 0.9, so this at least is consistent with the small |
|
|
magnitude difference obtained from speckle measures. |
Hor2015b |
|
Orbit determined by fitting revised Hipparcos intermediate astrometric |
|
|
data. Derived component masses 1.64 +/- 0.29 and 0.90 +/- 0.15 Msun. |
Ren2010 |
|
Unclear if the SB2 orbit presented here is for this pair on another |
Kie2018 |
|
unresolved component. |
|
|
A: Teff = 6227 +/- 68 K, B: Teff = 5915 +/- 10. |
|
| refcode |
metd |
author |
reference |
| Hor2015b |
S j |
Horch, E.P., van Belle, G.T., Davidson, J.W., Jr., Ciastko, L.A., Everett, M.E., & |
2015AJ....150..151H |
| Hor2015b |
|
Bjorkman, K.S. |
|
| Hor2015b |
|
AJ 150, 151, 2015 |
|
| Kie2018 |
orb - |
Kiefer, F., Halbwachs, J.-L., Lebreton, Y., Soubiran, C., Arenou, F., Pourbaix, D., |
2018MNRAS.474..731K |
| Kie2018 |
+not |
Famaey, B., Guillout, P., Ibata, R. & Mazeh, T. |
|
| Kie2018 |
|
MNRAS 474, 731, 2018 |
|
| Nrd2004 |
rv - |
Nordstrom, B., Mayor, M., Andersen, J., Holmberg, J., Pont, F., Jorgensen, B.R., |
2004A&A...418..989N |
| Nrd2004 |
|
Olsen, E.H., Udry, S., & Mowlavi, N |
|
| Nrd2004 |
|
A&A 418, 989, 2004 |
|
| Ren2010 |
orb - |
Ren, S. & Fu, Y. |
2010AJ....139.1975R |
| Ren2010 |
|
AJ 139, 1975, 2010 |
|
