discov_num |
notes |
refcode |
STF 748 |
A: the 1 Ori A = 41 Ori A = V1016 Ori |
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B: the 1 Ori B = 41 Ori B = BM Ori |
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C: the 1 Ori C = 41 Ori C |
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D: the 1 Ori D = 41 Ori D |
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Trapezium. the Ori A, B, and C were first noted as a triple by |
G__1617 |
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Galileo on 4 February 1617. It was independently found as a triple in |
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by Christian Huygens, who is often given credit for recognizing this |
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multiple system. the Ori D was found by Abbe Jean Picard, as |
A__1935f |
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documented by a manuscript drawing of 20 March 1673. The D component |
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was independently found by Huygens in 1684. |
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A and B are both Algol-type systems, C is an RW Aur-type system. |
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Common proper motion with the multiple system STF 16. |
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Stahl et al. (1996 A&A 312, 539) find that the H-alpha profiles of the |
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C component vary with a 15.4-day cycle which they suggest is related |
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to the star's rotational period; photospheric line radial velocity |
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variations are small. All 4 of the Orion Trapezium stars were observed |
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with the speckle camera (A = HD 37020; B = HD 37021; C = HD 37022; |
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D = HD 37023) and all appeared to be single. Classifications of the |
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B and D components are from the WDS. The spectral classification for |
Lev1991b |
|
the A component is from Morrell & Levato (1991). |
Msn1998a |
|
AB: H 3 1. |
MEv2010 |
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AC: C component = D component of 05354-0525 STFA 17. |
|
WGT 1 |
Ca,Cb: The longer-period Kraus et al. (2007) solution gives a dynamic |
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parallax 2.304 +/- 0.066 mas, the shorter-period solution gives 2.585 |
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+/- 0.074 mas. Mass sums are 47.8 +/- 4.2 and 44.8 +/- 3.9 Msun, |
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respectively. Based on evolutionary models, spectral types for Ca and |
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Cb are O5.5 and O9.5, masses are 34.0 and 15.5 Msun. |
Kss2007 |
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The Kraus et al. (2009) solution is based on VLTI data from 2007-2008, |
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plus speckle (1997-2008) and radial valocity data. They derive a |
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dynamic distance of 410 +/- 20pc and a system mass of 44 +/- 7 Msun. |
Kss2009 |
|
Ca,Cb: From their combined astrometric/spectroscopic solution, Balega |
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et al. (2015) derive the following properties for the system: |
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total mass (Msun): 45.5 +/- 10.0 |
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mass ratio: 0.36 0.05 |
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distance (pc): 414 7 |
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flux ratio: 0.30 0.05 |
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Resulting properties for the two components are: |
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mass (Msun): 33.5 +/- 5.2 12.0 +/- 3.0 |
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log L: 5.21 0.01 4.70 0.15 |
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Spectral types: O6Vp B0V |
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Teff 39000 1000 30000 1000 |
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radii (Rsun): 8.91 0.50 8.24 0.50 |
Bag2015 |
STF 748 |
CH: Additional notes may be found in Burnham (1894). |
Bu_1894 |
KSS 1 |
D component of ADS 4186 = the 1 Ori D |
|
PTR 1 |
Ab is a 4 solar mass PMS F star. |
Gvt2018 |
GVT 1 |
Be is a 4-6 solar mass B star. |
Gvt2018 |
GVT 1 |
Dc is a 5-7 solar mass B star. |
Gvt2018 |
DAE 130 |
Oa,Ob: The elongated shape of JW 519's primary suggests the primary to |
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be binary itself. The photometry for JW 519, however, is based on the |
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assumption of a single central object since separate components cannot |
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be identified. |
Dae2012 |
GET 43 |
TU: the 1 Ori G |
|
REP 110 |
Xa,Xb: AF Ori |
|
DCH 110 |
Oa,Ob: MT Ori |
|
refcode |
metd |
author |
reference |
A__1935f |
- |
Aitken, R.G. |
1935QB821.A3....... |
A__1935f |
|
The Binary Stars, 1935 |
|
Bag2015 |
N - |
Balega, Y.Y., Chentsov, E.L., Rzaev, A.Kh. & Weigelt, G. |
2015ASPC..494...57B |
Bag2015 |
+orb |
ASP Conference Series 494, 57, 2015 |
|
Bu_1894 |
Ma j |
Burnham, S.W. |
1894PLicO...2....3B |
Bu_1894 |
|
Pub. Lick Obs. 2, 3, 1894 (includes most data from Bu_1893a) |
1893AN....131..329B |
Dae2012 |
A j |
Daemgen, S., Correia, S., & Petr-Gotzens, M.G. |
2012A&A...540A..46D |
Dae2012 |
|
A&A 540, A46, 2012 |
|
G__1617 |
V - |
Galileo Galilei |
2004S&T...108a..72O |
G__1617 |
+not |
Galilo manuscript 70 c, 10r, Biblioteca Nazionale Centrale, Florence, p 74 |
|
G__1617 |
|
(also see Ond2004) |
|
Gvt2018 |
K |
GRAVITY collaboration, Karl, M., Pfuhl, O., Eisenhauser, F., Genzel, R., Grellman, |
2018A&A...620A.116G |
Gvt2018 |
+orb |
R., Habibi, M., Abuter, R., Accardo, M., Amorim, A., Anugu, N., Avila, G. et al. |
|
Gvt2018 |
+not |
A&A 620, 116, 2018 |
|
Kss2007 |
Si u |
Kraus, S., Balega, Y.Y., Berger, J.-P., Hofmann, K.-H., Millan-Gabat, R., |
2007A&A...466..649K |
Kss2007 |
+orb |
Monnier, J.D., Ohnaka, K., Pedretti, E., et al. |
|
Kss2007 |
|
A&A 466, 649, 2007 (see also IOT2007) |
|
Kss2009 |
Kv u |
Kraus, S., Weigelt, G., Balega, Y.Y.,Docobo, J.A., Hofmann, K.-H., Preibisch, T., |
2009A&A...497..195K |
Kss2009 |
+S |
Schertl, D., Tamazian, V.S., Driebe, T., et al. |
|
Kss2009 |
|
A&A 497, 195, 2009 |
|
Lev1991b |
- |
Morrell, N. & Levato, H. |
1991ApJS...75..965M |
Lev1991b |
|
ApJS 75, 965, 1991 |
|
MEv2010 |
- |
MacEvoy, B. |
................... |
MEv2010 |
|
private communication, 2010 (see http://www.handprint.com/ASTRO/index.html) |
|
Msn1998a |
Sc j |
Mason, B.D., Gies, D.R., Hartkopf, W.I., Bagnuolo, Jr., W.G., |
1998AJ....115..821M |
Msn1998a |
|
ten Brummelaar, T.A., & McAlister, H.A. |
|
Msn1998a |
|
AJ 115, 821, 1998 |
|
idgroup |
discov |
author |
1 |
CLO |
Close, L.M., Roddier, F., Northcott, M.J., Roddier, C., & Graves, J.E. |
2 |
CLO |
Close, L.M., Potter, D., Brandner, W., Lloyd-Hart, M., Liebert, J., Burrows, A., |
2 |
CLO |
& Siegler, N. |
7 |
CLO |
Close, L.M., Wildi, F., Lloyd-Hart, M., Brusa, G., Fisher, D., Miller, D., |
7 |
CLO |
Riccardi, A., Salinari, P., et al. |
8 |
CLO |
Close, L.M., Lenzen, R., Guirado, J.C., Nielsen, E.L., Mamajek, E.E., |
8 |
CLO |
Brandner, W., Hartung, M., Lidman, C., & Biller, B. |
9 |
CLO |
Close, L.M., Zuckerman, B., Song, I., Barman, T., Marois, C., Rice, E.L., |
9 |
CLO |
Siegler, N., Macintosh, B., et al. |
14 |
CLO |
Close, L.M., Puglisi, A., Males, J.R., Arcidiacono, C., Skemer, A., Guerra, J.C., |
14 |
CLO |
Busoni, L., Brusa, G., Pinna, E., Miller, D.L., Riccardi, A., McCarthy, D., et al. |
15 |
CLO |
Close, L.M., Males, J.R., Morzinski, K., Kopon, D., Follette, K., Rodigas, T.J., |
15 |
CLO |
Hinz, P., Wu, Y-L., Puglisi, A., Esposito, S., Riccardi, A., Pinna, E., et al. |
16 |
CLO |
Close, L.M., Follette, K.B., Males, J.R., Puglisi, A., Xompero, M., Apai, D., |
16 |
CLO |
Najita, J., Weinberger, A.J., Morzinski, K., Rodigas, T.J., Hinz, P., Bailey, V., |
16 |
CLO |
& Briguglio, R. |
17 |
DCH |
Duchene, G., Bouvier, J. & Simon, T |
40 |
DCH |
Duchene, G., McCabe, C., Pinte, C., Stapelfeldt, K.R., Menard, F., Duvert, G., |
40 |
DCH |
Ghez, A.M., Maness, H.L., Bouy, H., Barrado y Navascues, D., Morales-Calderon, M., |
40 |
DCH |
Wolf, S., et al. |
43 |
DCH |
Duchene, G., Oon, J.T., De Rosa, R.J., Kantorski, P., Coy, B., Wang, J.J., Thomas, |
43 |
DCH |
S., Patience, J., Pueyo, L., Nielsen, E.L. & Konopacky, Q. |
44 |
GET |
Getman, K.V., Feigelson, E.D., Grosso, N., McCaughrean, M.J., Micela, G., |
44 |
GET |
Broos, P., Garmire, G., & Townsley, L. |
45 |
MZA |
Maiz-Apellaniz, J., Walborn, N.R., Morrell, N.I., Niemela, V.S., & Nelan, E.P. |
48 |
MZA |
Maiz-Apellaniz, J., Negueruela, I., Barba, R.H., Walborn, N.R., Pellerin, A., |
48 |
MZA |
Simon-Diaz, S., Sota, A., Marco, A., Alonso-Santiago, J., Sanchez-Bermudez, J., |
48 |
MZA |
Gamen, R.C., & Lorenzo, J. |
49 |
MZA |
Maiz-Apellaniz, J., Sota, A., Arias, J.I., Barba, R.H., Walborn, N.R., Simon-Diaz, |
49 |
MZA |
S., Negueruela, I., Marco, A., Leao, J.R., Herrero, A., Gamen, R.C. & Alfaro, E.J. |
51 |
MZA |
Maiz-Apellaniz, J., Barba, R.H., Simon-Diaz, S., Sota, A., Trigueros Paez, E., |
51 |
MZA |
Caballero, J.A. & Alfaro, E.J. |
53 |
MZA |
Maiz Apellaniz, J., Trigueros Paez, E., Negueruela, I., Barba, R.H., Simon-Diaz, |
53 |
MZA |
S., Lorenzo, J., Sota, A., Gamen, R.C., Farina, C., Salas, J., Caballero, J.A., |
53 |
MZA |
Morrell, N.I., Pellerin, A., Alfaro, E.J., Herrero, A., Arias, J.I. & Marco, A. |
57 |
MZA |
Maiz Apellaniz, J., Trigueros Paez, E., Negueruela, I., Barba, R.H., Simon-Diaz, |
57 |
MZA |
S., Lorenzo, J., Sota, A., Gamen, R.C., Farina, C., Salas, J., Caballero, J.A., |
57 |
MZA |
Morrell, N.I., Pellerin, A., Alfaro, E.J., Herrero, A., Arias, J.I. & Marco, A. |
58 |
MZA |
Maiz Apellaniz, J., Barba, R.H., Farina, C., Sota, A., Pantaleoni Gonzalez, M., |
58 |
MZA |
Holgado, G., Negueruela, I. & Simon-Diaz, S. |
59 |
PTR |
Petr, M.G., du Foresto, V.C., Beckwith, S.V.W., Richichi, A., & McCaughrean, M.J. |
62 |
REP |
Reipurth, B. & Gee, G. |
84 |
SMN |
Simon, M., Howell, R.R., Longmore, A.J., Wilking, B., Peterson, D., & Chen, W.-P. |
88 |
SMN |
Simon, M., Ghez, A., Leinert, Ch., Cassar, L., Chen, W.P., Howell, R.R., Jameson, |
88 |
SMN |
R.F., Matthews, K., et al. |
98 |
SMN |
Simon, M., Schaefer, G.H., Prato, L., Ruiz-Rodriguez, D., Karnath, N., |
98 |
SMN |
Franz, O.G., & Wasserman, L.H. |
99 |
STF |
Struve, F.G.W. |
132 |
WGT |
Weigelt, G.P. |
149 |
WGT |
Weigelt, G.P., Balega, Y., Preibisch, T., Schertl, D., Scholler, M., & |
149 |
WGT |
Zinnecker, H. |