discov_num |
notes |
refcode |
STF3135 |
Rabe measures principal stars STF 761 and STF 762. |
Rab1923 |
|
1914, 324@, 209.79". This new WDS entry created 02/18/98. |
|
|
Spectral types of primary and secondary assigned by ten Brummelaar et |
TtB2000 |
|
al., based on adaptive optics observations. |
|
BU 1032 |
sig Ori = 48 Ori. A is the variable V1030 Ori. This is the brightest |
|
|
pair in a trapezium system with at least five components, including |
|
|
components C (mag. 8.79, 11", A2V), D (mag. 6.62, 13", B2V), and the |
|
|
helium-rich star E, BD-02@1327. A has also been reported to be a short |
|
|
period SB2. |
|
|
Heintz (1974) gives formulae for the motions AB,C and AB,D. |
Hei1974b |
|
The suspected small RV variation of AB was not confirmed in David |
|
|
Dunlap Obs. spectra. |
|
|
See Baize & Petit (1989) catalog of doubles with variable component. |
Baz1989d |
|
The AB pair has decreased in position angle from 171 deg to 125 deg |
|
|
between 1975 and 1994. Fullerton (1990) describes three spectral |
Ful1990 |
|
components in the He I 5876 A profile which suggests that one of the |
|
|
stars is a double-lined spectroscopic binary (see Bolton, 1974 ApJ |
|
|
192, L7). Classifications of the B, C, and D components are from |
Hof1991 |
|
Hoffleit & Warren (1991), while the classification for the E |
Lev1991b |
|
component is from Morrell & Levato (1991). |
Msn1998a |
|
AB: Additional notes may be found in Worley (1956). |
Wor1956b |
|
AB: Malkov et al. (2012) derive dynamical, photometric, and |
|
|
spectroscopic masses 27.34 +/- 40.70, 25.32, 21.87 Msun, respectively. |
Mlk2012 |
sig Ori |
Aa,Ab: Simon-Diaz et al. (2015) derive a new spectroscopic orbit for |
|
|
the primary (sig Ori Aa,Ab) as well as astrometry and photometry for |
|
|
the AB pair. New values for mass, log g, age, Teff, etc are derived |
|
|
for Aa, Ab, and B. |
SiD2015 |
NOI 6 |
Aa,Ab: Schaefer et al. (2016) resolved the primary of sig Ori A and |
|
|
derive a new combined solution, as well as a new orbit of the AB pair. |
|
|
Derived masses for Aa, Ab, and B are 16.99 +/- 0.20, 12.81 +/- 0.18, |
|
|
and 11.54 +/- 1.15 Msun, respectively. They also derive a parallax of |
|
|
2.5806 +/- 0.0088 mas, corresponding to distance 387.51 +/- 0.12 pc. |
NOI2016b |
|
Spectral type of Aa 09.5V, Ab B0.5V |
Opl2023 |
STF 762 |
AB,C: H 2 11. |
MEv2010 |
|
Sigma Ori E (V1030 Ori) has a strong magnetic field and a magnetosphere |
IAU2014a |
|
with two clouds of plasma constrained by magnetic and centrifugal |
|
|
forces which co-rotate with the 1.19d period of the star which results |
|
|
in eclipse features. |
|
|
Note that the C component was first resolved by Dawes while D and E |
Da_1835 |
|
were first resolved by Mayer. However, the discovery designation is |
MyC1784 |
|
maintained due to the long standing historical designations. |
|
STF3135 |
AB,F: F component = primary of 05386-0233 STF 761. |
|
RAS 22 |
Ea,Eb: Helium star V1030 Ori, type B2; spectral type of Eb estimated |
|
|
as late-A. |
Ras2014 |
CAB 26 |
Ha,Hb: [W96] 4771-899 = Mayrit 528005 |
|
BOY 24 |
Ja,Jb: sig Ori IRS 1 = Mayrit 3020 |
Boy2009 |
refcode |
metd |
author |
reference |
Baz1989d |
- |
Baize, P. & Petit, M. |
1989A&AS...77..497B |
Baz1989d |
|
A&AS 77, 497, 1989 |
|
Boy2009 |
A j |
Bouy, H., Huelamo, N., Martin, E.L., Marchis, F., Barrado Y Navascues, D., |
2009A&A...493..931B |
Boy2009 |
|
Kolb, J.,Marchetti, E., Petr-Gotzens, M.G., Sterzik, M., Ivanov, V.D., Kohler, R., |
|
Boy2009 |
|
& Nurnberger, D. |
|
Boy2009 |
|
A&A 493, 931, 2009 |
|
Da_1835 |
Ma - |
Dawes, W.R. |
1835MmRAS...8...61D |
Da_1835 |
|
MemRAS 8, 61, 1835 |
|
Ful1990 |
- |
Fullerton, A.W. |
. |
Ful1990 |
|
PhD thesis, Univ. of Toronto, 1990 |
|
Hei1974b |
orb - |
Heintz, W.D. |
1974AJ.....79..397H |
Hei1974b |
|
AJ 79, 397, 1974 |
|
Hof1991 |
- |
Hoffleit, D. & Jaschek, C. |
1991bsc..book.....H |
Hof1991 |
|
The Bright Star Catalogue, Fifth Revised Edition (preliminary version), 1991 |
|
IAU2014a |
- |
Oksala, M. (IAU Symposium 307, in press) |
. |
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) |
|
Mlk2012 |
not - |
Malkov, O.Yu., Tamazian, V.S., Docobo, J.A., & Chulkov, D.A. |
2012A&A...546A..69M |
Mlk2012 |
|
A&A 546, A69, 2012 |
|
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 |
|
MyC1784 |
- |
Mayer, Ch. |
. |
MyC1784 |
|
"Verzeichniss aller Doppelsterne" |
|
MyC1784 |
|
(Directory of all hitherto discovered doubled stars) in "Astronomisches Jahrbuch |
|
MyC1784 |
|
fur das Jahr 1784" by J.E. Bode, pp 183-186 |
|
MyC1784 |
|
(Note: this is the first known double star catalog) |
|
NOI2016b |
Kn j |
Schaefer, G.H., Hummel, C.A., Gies, D.R., Zavala, R.T., Monnier, J.D., |
2016AJ....152..213S |
NOI2016b |
|
Walter, F.M., Turner, N.H., Baron, F., ten Brummelaar, T., Che, X., |
|
NOI2016b |
|
Farrington, C.D., Kraus, S., Sturmann, J., & Sturmann, L. |
|
NOI2016b |
|
AJ 152, 213, 2016 (see also CIA2016c) |
|
Opl2023 |
- |
Oplistilova, A., Mayer, P., Harmanec, P. et al. |
2023A&A...672A..31O |
Opl2023 |
|
A&A 672, A31, 2023 |
|
Rab1923 |
Ma - |
Rabe, W. |
1923AN....217..413R |
Rab1923 |
|
AN 217, 413, 1923 |
|
Ras2014 |
S j |
Rastegaev, D.A., Balega, Y.Y., Dyachenko, V.V., Maksimov, A.F., & Malogolovets, E. |
2014AstBu..69..296R |
Ras2014 |
|
Astrophys. Bull. 69, 296, 2014 |
|
SiD2015 |
orb j |
Simon-Diaz, S., Caballero, J.A., Lorenzo, J., Maiz Apellaniz, J., Schneider, F.R., |
2015ApJ...799..169S |
SiD2015 |
+C |
Negueruela, I., Barba, R.H., Dorda, R., Marco, A., Montes, D., Pellerin, A., |
|
SiD2015 |
|
Sanchez-Berumudez, S., et al. |
|
SiD2015 |
|
ApJ 799, 169, 2015 |
|
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) |
|
Wor1956b |
Ma - |
Worley, C.E. |
1956AJ.....61..162W |
Wor1956b |
|
AJ 61, 162, 1956 |
|
idgroup |
discov |
author |
1 |
BU |
Burnham, S.W. (BU 1 - 81) |
179 |
CAB |
Caballero, J.A. |
188 |
CAB |
Caballero, J.A., Montes, D., Klutsch, A., Genebriera, J., Miret, F.X., Tobal, T., |
188 |
CAB |
Cairol, J. & Redraz, S. |
199 |
CAB |
Aberasturi, M., Caballero, J.A., Montesinos, B., Galvez-Ortiz, M.C., Solano, E. & |
199 |
CAB |
Martin, E.L. |
209 |
CAB |
Alonso-Floriano, F.J., Caballero, J.A., Cortes-Contreras, M., Solano, E., & |
209 |
CAB |
Montes, D. |
218 |
CAB |
Caballero, J.A., de Burgos, A., Alonso-Floriano, F.J., Cabrera-Lavers, A., |
218 |
CAB |
Garcia-Alvarez, D. & Montes, D. |
219 |
SHJ |
South, J. & Herschel, J. |
236 |
STF |
Struve, F.G.W. |
269 |
TRN |
Turner, N.H., ten Brummelaar, T.A., & Mason, B.D. |
270 |
TRN |
Turner, N.H., ten Brummelaar, T.A., McAlister, H.A., Mason, B.D., Hartkopf, W.I., |
270 |
TRN |
& Roberts, L.C. |
271 |
TRN |
Turner, N.H., ten Brummelaar, T.A., Roberts, L.C., Mason, B.D., Hartkopf, W.I., & |
271 |
TRN |
Gies, D.R. |