discov_num |
notes |
refcode |
STF1909 |
44 Boo. |
|
|
Spectral types and masses of components assigned by ten Brummelaar et |
|
|
al., based on adaptive optics observations. |
TtB2000 |
|
A is SB1, P=75240d (Abt2006). |
Tok2014d |
|
B is a W UMa-type eclipsing binary. |
|
|
Star B is W UMa-type eclipsing SB2; P = 0.2678 d (Popper 1943; |
Ppp1943 |
|
Binnendijk 1955, AJ 60, 355). The RV of pair B differs by +30 km/s |
|
|
from that of star A, much more than the visual motion can effect, and |
|
|
thus does not represent the true mass-center velocity of B. The |
|
|
eclipsing period undergoes intrinsic changes considerably larger than |
|
|
a lighttime effect in the orbit AB. Attempts to identify the ascending |
|
|
node are thus unreliable: Time shifts of light minima suggest the |
|
|
first quadrant (Plaut), the RV difference the third quadrant (Heintz). |
|
|
The close approach in the visual orbit in recent years has prevented |
|
|
continued study of the eclipsing system. |
|
|
See Baize & Petit (1989) catalog of doubles with variable component. |
Baz1989d |
|
1975.383: The visual binary has been observed here. |
BLM1978 |
|
H 1 15. |
MEv2010 |
|
Malkov et al. (2012) derive dynamical, photometric, and spectroscopic |
|
|
masses of 2.19 +/- 0.15, 2.02, and 1.83 Msun, respectively. |
Mlk2012 |
|
The B component is the W UMa type eclipsing binary i Boo. |
Zas2009 |
refcode |
metd |
author |
reference |
Baz1989d |
- |
Baize, P. & Petit, M. |
1989A&AS...77..497B |
Baz1989d |
|
A&AS 77, 497, 1989 |
|
BLM1978 |
S j |
Morgan, B.L., Beddoes, D.R., Scaddan, R.J. & Dainty, J.C. |
1978MNRAS.183..701M |
BLM1978 |
|
MNRAS 183, 701, 1978 |
|
Izm2019 |
orb u |
Izmailov, I.S. |
2019AstL...45...30I |
Izm2019 |
|
Ast. Lett. 45, 30, 2019 |
|
Izm2019 |
|
(Orbital elements from weighted solutions used when available (Table 2), |
|
Izm2019 |
|
unweighted elements (Table 1) used for remaining 29 systems.) |
|
MEv2010 |
- |
MacEvoy, B. |
................... |
MEv2010 |
|
private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) |
|
Mlk2012 |
not - |
Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. |
2012A&A...546A..69M |
Mlk2012 |
|
A&A 546, A69, 2012 |
|
Ppp1943 |
- |
Popper, D.M. |
1943ApJ....97..394P |
Ppp1943 |
|
ApJ 97, 394, 1943 |
|
Tok2014d |
E2 - |
Tokovinin, A. |
2014AJ....147...86T |
Tok2014d |
|
AJ 147, 86, 2014 |
|
TtB2000 |
Ac j |
ten Brummelaar, T.A., Mason, B.D., McAlister, H.A., Roberts, L.C., Jr., |
2000AJ....119.2403T |
TtB2000 |
|
Turner, N.H., Hartkopf, W.I., & Bagnuolo, W.G., Jr. |
|
TtB2000 |
|
AJ 119, 2403, 2000 (magnitude differences from Mt. Wilson AO) |
|
Zas2009 |
orb - |
Zasche, P., Wolf, M., Hartkopf, W.I., Svoboda, P., Uhlar, R., Liakos, A., & |
2009AJ....138..664Z |
Zas2009 |
|
Gazeas, K. |
|
Zas2009 |
|
AJ 138, 664, 2009 |
|