discov_num |
notes |
refcode |
STF2241 |
psi 1 Dra = Dziban. LDS1874. B is BD+72@805. |
|
|
CHARA Array Limb-darkened diameter 0.949 +/- 0.026 mas, |
CIA2012e |
|
R = 2.329 +/- 0.067 \rsun, L = 6.343 +/-0.153 \lsun, |
|
|
Teff = 6014 +/- 90 K, M = 1.311 +/- 0.016 \msun, |
|
|
Age = 3.8 +/- 0.1 Gyr. |
|
|
A premature orbit has been computed. |
|
|
A family of possible orbital solutions are determined by Romanenko |
Rmn1994 |
|
(1994), with periods ranging from 5,200 to 120,000 years, using the |
|
|
method of apparent motion parameters and incorporating parallax and |
|
|
radial velocity information. |
|
STF2241 |
AB: H 4 7. |
MEv2010 |
|
31 Dra. Toyota et al. (2009) monitored the RV of both the A and B |
|
|
components every 1-2 months between 2003 Mar - 2007 Nov, using a |
|
|
high-dispersion echelle (precision ~10 m/s). The A component exhibits |
|
|
a linear trend in RV, with a slope +220 m/s/y. Toyota et al. assert |
|
|
that these variations are due to an unseen companion. Assuming a |
|
|
circular orbit, period is estimated at 3200d; minimum mass of the |
|
|
unseen star ~50 Mjup. Standard deviation of radial velocities for the |
|
|
B component <40 m/s and velocities show no periodic variation. This |
|
|
result rejects the association of a planet of mass > 1.8 Mjup |
Toy2009 |
|
AC: Rectilinear solution by Hurowitz et al. (2014). |
USN2014a |
refcode |
metd |
author |
reference |
CIA2012e |
not j |
Boyajian, T.S., McAlister, H.A., van Belle, G., Gies, D.R., ten Brummelaar, T.A., |
2012ApJ...746..101B |
CIA2012e |
|
von Braun, K., Farrington, C., Goldfinger, P.J., O'Brien, D., Parks, J.R., |
. |
CIA2012e |
|
Richardson, N.D., Ridgway, S., Schaefer, G., Sturmann, L., Sturmann, J., Touhami, |
. |
CIA2012e |
|
Y., Turner, N.H. & White, R. |
. |
CIA2012e |
|
ApJ 746, 101, 2012 |
. |
Kis2009 |
orb - |
Kiselev, A.A., Romanenko, J.G., & Kalinichenko, O.A. |
2009ARep...53..126K |
Kis2009 |
|
ARep 53, 126, 2009 (SvAL 86, 148, 2009) |
|
MEv2010 |
- |
MacEvoy, B. |
................... |
MEv2010 |
|
private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) |
|
Rmn1994 |
orb - |
Romanenko, L.G. |
1994ARep...38..779R |
Rmn1994 |
|
SvA 71, 875, 1994 (ARep 38, 779, 1994) |
|
Toy2009 |
rv - |
Toyota, E., Itoh, Y., Ishiguma, S., Urakawa, S., Murata, D., Oasa, Y., |
2008PASJ...61...19T |
Toy2009 |
|
Matsuyama, H., Funayama, H., Sato, B., & Mukai, T. |
|
Toy2009 |
|
PASJ 61, 19, 2009 |
|
USN2014a |
lin - |
Hurowitz, J.L., Hartkopf, W.I., & Mason, B.D. |
2014IAUDS.182....1H |
USN2014a |
|
Inf. Circ. 182, 1, 2014 |
|
idgroup |
discov |
author |
1 |
PIN |
Pinfield, D.J., Jones, H.R.A., Lucas, P.W., Kendall, T.R., Folkes, S.L., |
1 |
PIN |
Day-Jones, A.C., Chappelle, R.J., & Steele, I.A. |
2 |
PIN |
Pinfield, D.J., Burningham, B., Lodieu, N., Leggett, S.K., Tinney, C.G., |
2 |
PIN |
van Spaandonk, L., Marocco, F., Smart, R., Gomes, J., Smith, L., Lucas, P.W., |
2 |
PIN |
Day-Jones, A.C., et al. |
3 |
STF |
Struve, F.G.W. |