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| Query : 2023AJ....165..203W |
2023AJ....165..203W - Astron. J., 165, 203 (2023/May-0)
The Orbital and Physical Properties of Five Southern Be+sdO Binary Systems.
WANG L., GIES D.R., PETERS G.J. and HAN Z.
Abstract (from CDS):
Close binary interactions may play a critical role in the formation of the rapidly rotating Be stars. Mass transfer can result in a mass gainer star spun up by the accretion of mass and angular momentum, while the mass donor is stripped of its envelope to form a hot and faint helium star. Far-UV spectroscopy has led to the detection of about 20 such binary Be+sdO systems. Here we report on a 3 yr program of high-quality spectroscopy designed to determine the orbital periods and physical properties of five Be binary systems. These binaries are long orbital period systems with P = 95-237 days and small semiamplitude K1 < 11 km s–1. We combined the Be star velocities with prior sdO measurements to obtain mass ratios. A Doppler tomography algorithm shows the presence of the He IIλ4686 line in the faint spectrum of the hot companion in four of the targets. We discuss the observed line variability and show evidence of phase-locked variations in the emission profiles of HD 157832, suggesting a possible disk spiral density wave due to the presence of the companion star. The stripped companions in HD 113120 and HD 137387 may have a mass larger than 1.4 M⊙, indicating that they could be progenitors of Type Ib and Ic supernovae.
Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.
Journal keyword(s): Stellar evolution - Spectroscopic binary stars - Emission line stars
VizieR on-line data: <Available at CDS (J/AJ/165/203): table1.dat table2.dat tableb1.dat tableb2.dat tableb3.dat tablec2.dat>
Simbad objects: 31
| Number of rows : 31 |
| N | Identifier | Otype |
ICRS (J2000) RA |
ICRS (J2000) DEC |
Mag U | Mag B | Mag V | Mag R | Mag I | Sp type |
#ref
1850 - 2026 |
#notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | * gam Cas | HXB | 00 56 42.5310945 | +60 43 00.264089 | 1.18 | 2.29 | 2.39 | 2.32 | 2.40 | B0.5IVpe | 1253 | 0 |
| 2 | * phi Per | Be* | 01 43 39.6379691568 | +50 41 19.433124998 | 3.10 | 4.02 | 4.06 | 3.90 | 3.88 | B1.5V:e-shell | 594 | 0 |
| 3 | HD 12882 | Be* | 02 08 45.4368570096 | +65 02 14.726502060 | 7.36 | 7.940 | 7.618 | B2.5III:[n]e+ | 75 | 0 | ||
| 4 | * zet Tau | Be* | 05 37 38.6854231 | +21 08 33.158804 | 2.22 | 2.84 | 3.03 | 3.06 | 3.15 | B1IVe_shell | 751 | 0 |
| 5 | HD 41335 | Be* | 06 04 13.5003372120 | -06 42 32.225392980 | 4.31 | 5.14 | 5.21 | 5.13 | 5.09 | B1V | 314 | 0 |
| 6 | LS V +22 25 | Be* | 06 11 49.0761116160 | +22 49 32.686712760 | 11.5 | 11.788 | 11.468 | 11.451 | B3V | 96 | 0 | |
| 7 | HD 45995 | Be* | 06 31 09.5621343984 | +11 15 04.953226644 | 5.20 | 6.06 | 6.14 | B1.5Vne | 164 | 0 | ||
| 8 | HD 51354 | Be* | 06 57 42.9025797024 | +17 54 07.237439316 | 6.29 | 7.02 | 7.16 | B3ne | 70 | 0 | ||
| 9 | HD 55606 | Be* | 07 13 34.1003415384 | -02 04 39.100526796 | 8.28 | 9.01 | 9.04 | B0.5Vnnpe | 66 | 0 | ||
| 10 | HD 58978 | Be* | 07 26 59.4826856664 | -23 05 09.689679528 | 4.51 | 5.45 | 5.56 | 7.05 | B0.5IVe | 248 | 0 | |
| 11 | * omi Pup | Be* | 07 48 05.1686329933 | -25 56 13.810593657 | 3.42 | 4.43 | 4.49 | 4.37 | 4.37 | B1IVe | 228 | 0 |
| 12 | * r Pup | Be* | 08 13 29.5172754003 | -35 53 58.265647773 | 3.68 | 4.66 | 4.77 | 4.68 | 4.77 | B1V | 199 | 0 |
| 13 | * kap Dra | Be* | 12 33 28.9433168544 | +69 47 17.659892220 | 3.18 | 3.75 | 3.89 | 3.84 | 3.92 | B6IIIe | 395 | 0 |
| 14 | HD 113120 | Be* | 13 03 05.3358171458 | -71 28 32.642280570 | 5.21 | 6.08 | 6.03 | B2IVne | 132 | 0 | ||
| 15 | * kap01 Aps | Be* | 15 31 30.8221293192 | -73 23 22.529543604 | 4.60 | 5.37 | 5.49 | B2Vnpe | 126 | 0 | ||
| 16 | * chi Oph | Be* | 16 27 01.4355697915 | -18 27 22.499961252 | 3.95 | 4.71 | 4.43 | 3.97 | 3.73 | B2Vne | 624 | 0 |
| 17 | HD 152478 | Be* | 16 56 08.8420101600 | -50 40 29.242895268 | 5.64 | 6.31 | 6.33 | B3Vnpe | 96 | 0 | ||
| 18 | * iot Ara | Be* | 17 23 16.0762402440 | -47 28 05.505681720 | 4.32 | 5.14 | 5.25 | 5.12 | 5.20 | B1V | 157 | 0 |
| 19 | HD 157832 | Be* | 17 27 54.8113451976 | -47 01 34.397043672 | 5.81 | 6.636 | 6.663 | B2ne | 75 | 0 | ||
| 20 | HD 161306 | Be* | 17 45 07.7041298136 | -09 48 54.445589568 | 8.35 | 8.78 | 8.30 | B3/5Vnne | 65 | 0 | ||
| 21 | HD 167128 | Be* | 18 17 07.5324253562 | -56 01 24.057583523 | 4.62 | 5.30 | 5.36 | 5.32 | 5.36 | B3IIIe | 175 | 0 |
| 22 | HD 183362 | Be* | 19 27 36.3966416760 | +37 56 28.307118120 | 5.46 | 6.20 | 6.34 | B3Ve | 119 | 0 | ||
| 23 | * 7 Vul | Be* | 19 29 20.8977162984 | +20 16 47.065594296 | 6.226 | 6.326 | B5Vn | 59 | 1 | |||
| 24 | HD 184279 | Be* | 19 33 36.9185843448 | +03 45 40.793081472 | 6.63 | 7.00 | 7.00 | B0V | 153 | 0 | ||
| 25 | HD 194335 | Be* | 20 23 44.3690462664 | +37 28 35.209455780 | 4.82 | 5.70 | 5.90 | B2IIIe | 161 | 0 | ||
| 26 | BD+47 3129 | HXB | 20 30 30.8452150680 | +47 51 50.717123784 | 8.95 | 9.594 | 9.273 | 9.273 | B0.5V-IIIe | 51 | 0 | |
| 27 | * f01 Cyg | Be* | 20 59 49.5541247496 | +47 31 15.363746436 | 3.77 | 4.71 | 4.75 | 4.62 | 4.63 | B1.5Vnne | 514 | 0 |
| 28 | * 60 Cyg | Be* | 21 01 10.9277453472 | +46 09 20.795190696 | 4.23 | 5.226 | 5.432 | B1Ve | 217 | 0 | ||
| 29 | BD+43 3913 | Be* | 21 25 02.4437067432 | +44 27 06.376740300 | 9.07 | 9.33 | 8.91 | B1.5V:nnep | 63 | 0 | ||
| 30 | * pi. Aqr | Be* | 22 25 16.6230017410 | +01 22 38.634449478 | 3.64 | 4.60 | 4.64 | 4.48 | 4.48 | B1III-IVe | 436 | 0 |
| 31 | HD 220058 | Be* | 23 20 19.0150387584 | +55 48 28.075999176 | 8.05 | 8.76 | 8.59 | B2 | 51 | 0 |
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