| discov_num |
notes |
refcode |
| GHE 6 |
Components A, Ba, and Bb of this system are also commonly designated |
|
|
as N, Sa, and Sb, respectively, due to the north-south orientation of |
|
|
the wider pair. |
|
|
AB: Measure of 1982.5 made by the VLA at radio wavelengths. |
Scw1984 |
|
Measure of 1983.75 made by the VLA at radio wavelengths. |
Scw1986 |
|
Measures of Johnston et al. and Loinard et al. made by the VLA at |
Jnt2003 |
|
radio wavelengths. |
Loi2003 |
|
AB: Rho and theta errors for Ghez et al. (1995), Furlan et al. (2003), |
Ghe1995 |
|
and Roddier et al. (2000) measures have been added/updated as noted by |
Fun2003 |
|
Koehler et al. (2008). Koehler et al. derive a preliminary orbit for |
Rod2000 |
|
the AB pair, yielding a system mass of 5.57 +0.11/-0.29 Msun. |
Koh2008b |
|
A,Ba: The 2000.886 Duchene et al. (2002) theta value was corrected by |
Dch2002 |
|
Duchene et al (2006). Also, the Duchene et al. (2006) theta value for |
Dch2006 |
|
2005.801 was changed by 90deg to correct for the orientation of the |
|
|
camera (Schaefer, priv. comm. cited by Koehler et al. 2008) |
Koh2008b |
| KRS 2 |
Ba,Bb: Tamazian derives a total system mass of 2.82 +/- 0.74 Msun, |
Tam2005 |
|
consistent with the IRC model of Koresko et al. (1997). |
Krs1997 |
|
T Tau Sa-Sb orbit gives range 1991-2001 for T, 0.09-0.87 for e, |
|
|
11-60 for i. Values for P and a are lower limits. |
Sfr2006 |
|
Duchene et al. (2006) derive masses for the Ba and Bb components of |
Dch2006 |
|
2.73 +/- 0.31 and 0.61 +/- 0.17 Msun, respectively. |
|
|
Ba,Bb: The 2000.886 Duchene et al. (2002) theta value was corrected by |
Dch2002 |
|
Duchene et al (2006) |
Dch2006 |
|
The 2002.829 Schaefer et al. (2006) measure is a reanalysis of data |
Sfr2006 |
|
from Beck et al. (2004). |
Bck2004 |
|
Koehler et al. (2008) derive a system mass of 2.96 +0.15/-0.24 Msun |
Koh2008b |
|
and individual masses of 2.13 +0.14/-0.20 and 0.83 +0.10/-0.11 Msun |
|
|
for the Ba and Bb components, respectively. |
|
|
Ba,Bb: The Schaefer et al. (2014) orbit, combined with a VLBA parallax |
|
|
of 6.90 +/- 0.09 mas (147.6 +/- 0.6pc; Loinard et al. 2007, ApJ 671, |
|
|
546) yields a total mass for Ba+Bb of 2.70 +/- 0.22 Msun. |
Sfr2014 |
|
Ba,Bb: Csepany et al. (2015) generated new orbital parameters for T |
|
|
Tau N-S (KRS 2Ba,Bb), but their grid search yields a wide range of |
|
|
possible solutions (P 475-27000y, a 0.57-16.8", etc.) |
Cse2015b |
|
Based on the new orbit and the Gaia parallax the masses of Ba(Bb) is |
Sfr2020 |
|
is 2.049(0.430) +/- 0.137(0.055) \msun. Using the slightly grater |
|
|
distance from the VLBA parallax the result is 2.268(0.476) +/- |
|
|
0.147(0.060) \msun. The brightnesa of Ba and Bb are both variable. |
|
| refcode |
metd |
author |
reference |
| Bck2004 |
Ci j |
Beck, T.L., Schaefer, G.H., Simon, M., Prato, L., Stoesz, J.A., & Howell, R.R. |
2004ApJ...614..235B |
| Bck2004 |
+A |
ApJ 614, 235, 2004 |
|
| Bck2004 |
+Xl |
(IRTF+NSFcam, Keck and Gemini AO, IRTX SpeX) |
|
| Cse2015b |
A j |
Csepany, G., van den Ancker, M., Abraham, P., Brandner, W. & Hormuth, F. |
2015A&A...578L...9C |
| Cse2015b |
|
A&AL 578, 9, 2015 |
|
| Dch2002 |
A j |
Duchene, G. Ghez, A.M. & McCabe, C. |
2002ApJ...568..771D |
| Dch2002 |
+S |
ApJ 568, 771, 2002 |
|
| Dch2006 |
orb j |
Duchene, G., Beust, H., Adjali, F., Konopacky, Q.M., & Ghez, A.M. |
2006A&A...457L...9D |
| Dch2006 |
+Si |
A&A 457, L9, 2006 |
|
| Dch2006 |
+A |
|
|
| Fun2003 |
A j |
Furlan, E., Forrest, W.J., Watson, D.M., Uchida, K.I., Brandl, B.R., Keller, L.D., |
2003ApJ...596L..87F |
| Fun2003 |
+orb |
& Herter, T.L. |
|
| Fun2003 |
|
ApJ 596, L87, 2003 (erratum: 2003 ApJ 599, L117) |
2003ApJ...599L.117F |
| Ghe1995 |
Si j |
Ghez, A.M., Weinberger, A.J., Neugebauer, G., Matthews, K., & McCarthy, D.W., Jr. |
1995AJ....110..753G |
| Ghe1995 |
|
AJ 110, 753, 1995 |
|
| Jnt2003 |
Kl j |
Johnston, K.J., Gaume, R., Fey, A., de Vegt, C., & Claussen, M. |
2003AJ....125..858J |
| Jnt2003 |
+orb |
AJ 125, 858, 2003 |
|
| Jnt2003 |
|
(error estimates from Tamazian, AJ 127, 2378, 2004) |
2004AJ....127.2378T |
| Koh2008b |
A j |
Koehler, R., Ratzka, T., Herbst, T.M., & Kasper, M. |
2008A&A...482..929K |
| Koh2008b |
+orb |
A&A 482, 929, 2008 |
|
| Krs1997 |
- |
Koresko, C.D., Herbst, T.M., & Leinert, Ch. |
1997ApJ...480..741K |
| Krs1997 |
|
ApJ 480, 741, 1997 |
|
| Loi2003 |
Kl - |
Loinard, L., Rodriguez, L. & Rodriguez, M. |
2003ApJ...587L..47L |
| Loi2003 |
|
ApJ 587, L47, 2003 |
|
| Loi2003 |
|
(error estimates from Tamazian, 2004 AJ 127, 2378) |
2004AJ....127.2378T |
| Rod2000 |
A j |
Roddier, C., Roddier, C., Brandner, W., Charissoux, D., Veran, J.-P., & Courbin,F. |
2000IAUS..200P..60R |
| Rod2000 |
|
IAU Symp. 200, 60, 2000 |
|
| Scw1984 |
Kl - |
Schwartz, P.R., Simon, T., Zuckerman, B., & Howell, R.R. |
1984ApJ...280L..23S |
| Scw1984 |
|
ApJ 280, L23, 1984 |
|
| Scw1986 |
Kl - |
Schwartz, P.R., Simon, T., & Campbell, R. |
1986ApJ...303..233S |
| Scw1986 |
|
ApJ 303, 233, 1986 |
|
| Sfr2006 |
Hf j |
Schaefer, G.H., Simon, M., Beck, T.L., Nelan, E., & Prato, L. |
2006AJ....132.2618S |
| Sfr2006 |
+A |
AJ 132, 2618, 2006 |
|
| Sfr2006 |
|
(information slightly updated using information from Sfr2012. Photometry of DF Tau |
|
| Sfr2006 |
|
= 04271+2542 = THB 1 corrected and converted to V-band by Allen et al. 2017) |
2017ApJ...845..161A |
| Sfr2014 |
orb j |
Schaefer, G.H., Prato, L., Simon, M., & Patience, J. |
2014AJ....147..157S |
| Sfr2014 |
+A |
AJ 147, 157, 2014 |
|
| Sfr2020 |
orb j |
Schaefer, G.H., Beck, T.L., Prato, L. & Simon, M. |
2020AJ....160...35S |
| Sfr2020 |
+A |
AJ 160, 35, 2020 |
|
| Tam2005 |
S j |
Tamazian, V.S., Docobo, J.A., Melikian, N.D., Balega, Y.Y., & Karapetian, A.A. |
2005AJ....130.2847T |
| Tam2005 |
+orb |
AJ 130, 2847, 2005 |
|
