2013MNRAS.433.1300F

Query : 2013MNRAS.433.1300F

2013MNRAS.433.1300F - Mon. Not. R. Astron. Soc., 433, 1300-1311 (2013/August-1)

Apsidal motion in massive close binary systems - I. HD 165052, an extreme case ?

FERRERO G., GAMEN R., BENVENUTO O. and FERNANDEZ-LAJUS E.

Abstract (from CDS):

We present a new set of radial velocity measurements of the spectroscopic binary HD 165052 obtained by disentangling high-resolution optical spectra. The longitude of the periastron (π = 60±2°) shows a variation with respect to previous studies. We have determined the apsidal motion rate of the system, {dot}ϖ=12.1 ±0 ^○_. 3 yr-1, which was used to calculate the absolute masses of the binary components: M1 = 22.5±1.0M☉ and M2 = 20.5±0.9M☉. Analysing the separated spectra, we have reclassified the components as O7Vz and O7.5Vz stars.

Abstract Copyright: © 2013 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2013)

Journal keyword(s): binaries: close - binaries: spectroscopic - stars: early-type - stars: fundamental parameters - stars: individual: HD 165052 - stars: massive

VizieR on-line data: <Available at CDS (J/MNRAS/433/1300): tableb1.dat rv.dat>

Simbad objects: 16

goto Full paper

goto View the references in ADS

Number of rows : 16
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 HD 93146 ** 10 44 00.13416 -60 05 08.7396           O6V+O9.5V 88 0
2 HD 93146A * 10 44 00.1579435416 -60 05 09.880180368 7.57 8.45 8.47 9.281   O7V((f))z 91 0
3 V* V560 Car SB* 10 44 33.7393258944 -59 44 15.434446956 6.89 7.80 7.75 7.56 7.46 O3.5V((f))+O8V 314 0
4 V* V572 Car SB* 10 44 47.3048862456 -59 43 53.277923784 8.17 8.96 8.81 9.45   O7V+O9.5V+B0.2IV 182 0
5 CPD-59 2628 SB* 10 45 08.2244134080 -59 40 49.413975060 8.791 9.571 9.460 9.87 9.219 O9.5V(n)+B0.5V(n) 88 0
6 V* V731 Car SB* 10 45 12.7214663496 -59 44 46.149112428 8.739 9.472 9.229 9.65 8.699 O8V(n)+O9.5V 98 0
7 V* V662 Car EB* 10 45 36.3215655240 -59 48 23.261257368 12.74 12.91 12.05 12.10   O5Vz+B0:V 54 0
8 V* LX TrA LP* 15 27 33.0785673096 -64 31 53.399458920   7.349 5.706     K5/M0III 28 0
9 * tau Sco * 16 35 52.9528530 -28 12 57.661515 1.55 2.56 2.81 2.93 3.18 B0V 959 0
10 VdBH 86 RNe 17 19 46 -36 05.8           ~ 64 0
11 HD 319703 * 17 19 46.1639892408 -36 05 52.337458248 11.9 11.73 10.92 10.46 9.30 O7V((f))z 63 0
12 M 8 OpC 18 03 37 -24 23.2           ~ 644 1
13 NGC 6530 OpC 18 04 31 -24 21.5           ~ 443 0
14 HD 165052 SB* 18 05 10.5506592816 -24 23 54.847798080 6.16 6.98 6.87 7.77   O6.5V((f))z 282 1
15 * 11 Sgr Or* 18 09 17.6999100192 -23 59 18.231196056 6.65 7.45 7.31 8.36   O7V(n)z+B0:V: 146 2
16 HD 215835 SB* 22 46 54.1107754872 +58 05 03.533752788 8.24 8.85 8.629   8.049 O5.5V((f))+O6V((f)) 260 0

To bookmark this query, right click on this link: simbad:objects in 2013MNRAS.433.1300F and select 'bookmark this link' or equivalent in the popup menu