2007A&A...467.1181D


Query : 2007A&A...467.1181D

2007A&A...467.1181D - Astronomy and Astrophysics, volume 467, 1181-1196 (2007/6-1)

Efficiency of mass transfer in massive close binaries. Tests from double-lined eclipsing binaries in the SMC.

DE MINK S.E., POLS O.R. and HILDITCH R.W.

Abstract (from CDS):

One of the major uncertainties in close binary evolution is the efficiency of mass transfer β: the fraction of transferred mass that is accreted by a secondary star. We attempt to constrain the mass-transfer efficiency for short-period massive binaries undergoing case A mass transfer. We present a grid of about 20 000 detailed binary evolution tracks with primary masses 3.5-35M, orbital periods 1-5days at a metallicity Z=0.004, assuming both conservative and non-conservative mass transfer. We perform a systematic comparison, using least-squares fitting, of the computed models with a sample of 50 double-lined eclipsing binaries in the Small Magellanic Cloud, for which fundamental stellar parameters have been determined. About 60% of the systems are currently undergoing slow mass transfer. In general we find good agreement between our models and the observed detached systems. However, for many of the semi-detached systems the observed temperature ratio is more extreme than our models predict. For the 17 semi-detached systems that we are able to match, we find a large spread in the best fitting mass-transfer efficiency; no single value of β can explain all systems. We find a hint that initially wider systems tend to fit better to less conservative models. We show the need for more accurate temperature determinations and we find that determinations of surface abundances of nitrogen and carbon can potentially constrain the mass-transfer efficiency further.

Abstract Copyright:

Journal keyword(s): binaries: close - binaries: eclipsing - binaries: spectroscopic - Magellanic Clouds - stars: evolution - stars: mass-loss

Simbad objects: 56

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Number of rows : 56
N Identifier Otype ICRS (J2000)
RA
ICRS (J2000)
DEC
Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2023
#notes
1 OGLE SMC-SC1 99121 EB* 00 38 51.9513983952 -73 34 33.509274024 15.45 16.66 16.23   17.18 B0.5+B1/3 9 0
2 MOA J004633.1-732216 EB* 00 46 33.1170942168 -73 22 17.403333600 15.03 16.24 15.82   15.78 B0+B0/2 10 0
3 OGLE SMC-SC4 110409 EB* 00 47 00.1692066432 -73 18 43.529668056 14.98 15.96 15.53 15.99 16.23 B1+B0.5/3 11 0
4 MOA J004725.5-732716 EB* 00 47 25.4753834616 -73 27 17.075747124 14.04 15.35 15.16 15.42 15.64 B0.5+B0/1 13 0
5 OGLE SMC-SC4 163552 EB* 00 47 53.2227709776 -73 15 56.940931152 15.25 15.82 15.73   15.74 B1+B0/3 12 0
6 AzV 41 EB* 00 48 35.4119324520 -72 52 56.970723324 13.38 14.42 14.53 14.68 14.72 B0+B0.5/2 20 0
7 MOA J004859.9-731328 EB* 00 48 59.8398528168 -73 13 29.216167644 15.16 15.96 16.13 16.39 16.30 B1+B1/3 12 0
8 OGLE SMC-SC5 38089 EB* 00 49 01.8351821616 -73 06 07.364853252 14.02 14.83 14.85 15.35 15.17 ~ 14 0
9 SV* HV 11284 EB* 00 49 43.0820547360 -72 51 09.494795124 14.20 15.13 15.17 15.30 15.35 B1.5+B2 14 0
10 OGLE SMC100.8 52871 EB* 00 49 50.4094507896 -73 19 32.012783940   14.38 14.53 14.74 14.63 O9+O9 11 0
11 BBB SMC 33 EB* 00 50 27.9281649480 -73 03 16.538396148 13.04 13.85 13.88   14.24 B0III+O9V 28 0
12 OGLE SMC-SC5 180064 EB* 00 50 44.7446634864 -73 17 40.345102716 14.85 15.68 15.69   15.88 B1+B1 9 0
13 OGLE SMC-SC5 208049 EB* 00 50 45.0073330440 -72 58 44.798223252 15.25 16.01 16.17 15.97 16.30 B1+B1/5 10 0
14 OGLE SMC-SC5 316725 EB* 00 51 05.978 -72 40 57.37 13.45 14.29 14.54   14.78 B1 11 0
15 OGLE SMC-SC5 277080 EB* 00 51 11.38 -73 05 21.7 18.42 17.47 16.66 15.91 15.86 B1+B2 12 0
16 MOA J005118.6-733015 EB* 00 51 18.7712904456 -73 30 16.283059596 14.17 14.69 14.91 14.99 15.57 O8.5+O9/B0 14 0
17 AzV 94 EB* 00 51 20.1877572072 -72 49 43.446917676 12.80 13.71 13.94   14.04 O9+O9 14 0
18 OGLE SMC-SC5 300549 EB* 00 51 23.5880656752 -72 52 24.483287604 14.91 15.55 15.70 15.89 15.90 B0+B0/2 11 0
19 OGLE SMC-SC5 255984 EB* 00 51 29.6511500352 -73 21 38.153965716   15.99 16.14 16.33 16.22 B1+B1/2 10 0
20 MOA J005134.7-724546 EB* 00 51 34.8533012400 -72 45 46.388796552 14.83 15.74 16.00 16.06 16.01 B0+B0/3 16 0
21 AzV 109 EB* 00 51 50.1404795064 -72 39 23.130224784   13.60 13.884 14.09 14.06 B0(III) 18 0
22 OGLE SMC100.1 36237 EB* 00 52 03.9705114144 -73 18 49.850346456   15.72 15.85 16.04 15.97 B0+B0/1 10 0
23 MOA J005219.2-724151 EB* 00 52 19.2899838312 -72 41 52.209960396 14.03 14.79 14.92 15.12 15.05 ~ 11 0
24 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 10535 1
25 OGLE SMC-SC6 152981 EB* 00 52 41.8953895584 -72 46 22.852751484 14.52 15.38 15.68 15.76 15.93 B1+B1/3 10 0
26 AzV 144 EB* 00 53 33.3633261624 -72 56 24.469052352 12.86 13.64 13.93 13.93 14.14 B1-3(II) 19 0
27 MOA J005340.4-725222 LP* 00 53 40.40 -72 52 22.4   15.71 15.89 16.04 16.00 B1+B1/2 14 0
28 MOA J005342.2-732320 EB* 00 53 42.4280607816 -73 23 20.355864756 14.81 15.61 15.84 15.77 15.68 B0.5+B0/2 12 0
29 OGLE SMC-SC6 251047 EB* 00 53 43.94 -72 31 24.2   16.12 16.22 16.34 16.16 B1.5+B3 11 0
30 OGLE SMC-SC6 311225 EB* 00 54 02.0146117104 -72 42 22.020465564 14.20 15.04 15.22   15.49 B0+B0.5/2 13 0
31 OGLE SMC-SC6 319960 EB* 00 54 05.2653449808 -72 34 26.331488796 13.88 14.90 14.98 15.31 15.66 B1+B1/2 10 0
32 SV* HV 1620 EB* 00 54 38.2336666176 -72 32 06.414177876 13.36 14.34 14.45 14.62 14.68 B0.5(IV)e? 34 0
33 OGLE SMC-SC7 120044 EB* 00 55 31.64 -72 43 07.6   15.50 15.65 15.86 15.79 B1+B1 10 0
34 SV* HV 1669 EB* 00 55 54.4552210944 -72 28 08.770435140   15.12 14.97 15.19 15.212 B1IVe 23 0
35 OGLE SMC-SC7 193779 EB* 00 56 21.8244776184 -72 37 01.996249260 15.18 15.87 16.19 16.19 16.12 B1+B1/2 10 0
36 OGLE SMC-SC7 189660 EB* 00 56 37.3169625144 -72 41 43.636436484 15.13 16.10 16.06 16.32 16.47 B1+B1/2 10 0
37 OGLE SMC-SC7 243913 EB* 00 56 56.3596173048 -72 49 06.810717144 13.48 14.95 14.70 14.99 15.13 O7/9 15 0
38 OGLE SMC-SC7 255621 EB* 00 57 26.4009012960 -72 36 46.240269552 14.99 16.00 16.09 16.38 16.33 B0-5(IV) 13 0
39 OGLE SMC-SC8 104222 EB* 00 58 25.0927103976 -72 19 10.016450328 14.99 16.20 16.51 15.94 16.05 B1+B1/2 12 0
40 OGLE SMC-SC8 87175 EB* 00 58 30.9811395600 -72 39 14.176620252 15.70 16.12 16.08   16.47 B1+B1/2 10 0
41 MOA J010015.9-721244 EB* 01 00 16.0470398808 -72 12 44.168284080 13.57 14.23 14.50   14.60 O9V 12 0
42 OGLE SMC-SC9 47454 EB* 01 00 52.0571541384 -72 07 05.758359456 14.89 15.81 16.01 16.06 16.65 B1+B1/2 10 0
43 OGLE SMC-SC9 10098 EB* 01 00 52.9108288368 -72 47 48.981528420 14.03 15.19 15.33 15.41 15.65 B0V 13 0
44 OGLE SMC-SC9 64498 EB* 01 01 17.2910525520 -72 42 32.478242040 15.14 16.05 16.12 16.29 16.35 B0-5(IV) 13 0
45 MOA J010321.3-720538 EB* 01 03 21.3011685264 -72 05 38.152558428 12.06 13.15 13.36   13.95 O6V+O4/5III(f) 25 0
46 OGLE SMC-SC10 37156 EB* 01 03 28.8055344312 -72 01 28.853851980   15.21 15.387   15.575 ~ 9 0
47 OGLE SMC113.1 21 EB* 01 05 07.1784006384 -72 24 58.593859632   14.94 15.185 15.55 15.411 ~ 9 0
48 OGLE SMC-SC10 110440 EB* 01 05 09.6263976504 -71 58 42.291468516     16.166   16.335 ~ 7 0
49 SV* HV 1998 EB* 01 05 30.5993409384 -72 01 21.697362012   14.53 14.856   15.028 ~ 15 0
50 SV* HV 2016 EB* 01 06 24.8849866608 -72 12 48.648475440 13.56 14.54 14.79 14.83 15.21 ~ 14 0
51 OGLE SMC-SC11 57855 EB* 01 07 31.4700927648 -72 19 53.150521368   18.29 18.69 15.79 15.99 ~ 10 0
52 NAME Magellanic Clouds GrG 03 00 -71.0           ~ 6560 1
53 * bet Per EB* 03 08 10.1324535 +40 57 20.328013 1.70 2.07 2.12 2.08 2.11 B8V 1190 1
54 V* AS Eri EB* 03 32 25.1263057224 -03 18 48.095135748   8.49 8.30     A3V+K0III 165 0
55 V* BP Cru HXB 12 26 37.5605188992 -62 46 13.261044684   12.70 10.66     B1.5Iaeq 657 0
56 * bet Lyr EB* 18 50 04.7952472 +33 21 45.609978 2.85 3.42 3.42 3.31 3.29 B8.5Ib-II 914 0

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2023.02.01-21:09:19

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