2011A&A...536A..43N


Query : 2011A&A...536A..43N

2011A&A...536A..43N - Astronomy and Astrophysics, volume 536A, 43-43 (2011/12-1)

Post common envelope binaries from SDSS. XII. The orbital period distribution.

NEBOT GOMEZ-MORAN A., GAENSICKE B.T., SCHREIBER M.R., REBASSA-MANSERGAS A., SCHWOPE A.D., SOUTHWORTH J., AUNGWEROJWIT A., BOTHE M., DAVIS P.J., KOLB U., MUELLER M., PAPADAKI C., PYRZAS S., RABITZ A., RODRIGUEZ-GIL P., SCHMIDTOBREICK L., SCHWARZ R., TAPPERT C., TOLOZA O., VOGEL J. and ZOROTOVIC M.

Abstract (from CDS):

The complexity of the common-envelope phase and of magnetic stellar wind braking currently limits our understanding of close binary evolution. Because of their intrinsically simple structure, observational population studies of white dwarf plus main sequence (WDMS) binaries can potentially test theoretical models and constrain their parameters. The Sloan Digital Sky Survey (SDSS) has provided a large and homogeneously selected sample of WDMS binaries, which we characterise in terms of orbital and stellar parameters. We have obtained radial velocity information for 385 WDMS binaries from follow-up spectroscopy and for an additional 861 systems from the SDSS subspectra. Radial velocity variations identify 191 of these WDMS binaries as post common-envelope binaries (PCEBs). Orbital periods of 58 PCEBs were subsequently measured, predominantly from time-resolved spectroscopy, bringing the total number of SDSS PCEBs with orbital parameters to 79. Observational biases inherent to this PCEB sample were evaluated through extensive Monte Carlo simulations. We find that 21-24% of all SDSS WDMS binaries have undergone common-envelope evolution, which is in good agreement with published binary population models and high-resolution HST imaging of WDMS binaries unresolved from the ground. The bias-corrected orbital period distribution of PCEBs ranges from 1.9h to 4.3d and approximately follows a normal distribution in log(Porb), peaking at ∼10.3h. There is no observational evidence for a significant population of PCEBs with periods in the range of days to weeks. The large and homogeneous sample of SDSS WDMS binaries provides the means to test fundamental predictions of binary population models, hence to observationally constrain the evolution of all close compact binaries.

Abstract Copyright:

Journal keyword(s): binaries: close - binaries: spectroscopic - white dwarfs - stars: low-mass

VizieR on-line data: <Available at CDS (J/A+A/536/A43): stars.dat table3.dat table4.dat table6.dat>

Status at CDS : All or part of tables of objects could be ingested in SIMBAD with priority 2.

Simbad objects: 73

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Number of rows : 73
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 BD+03 3 * 00 08 21.4743669792 +03 54 27.998976348   11.69 10.05     M0 3 0
2 G 269-70 CV* 00 59 28.8888716656 -26 31 05.656933319   16.22 15.94     M5.5 42 0
3 GALEX J015225.3-005807 WD* 01 52 25.3847681856 -00 58 08.621196240           DA+M 16 0
4 SDSS J022503.03+005456.3 WD* 02 25 03.0355719744 +00 54 56.185846380           DC+dM 20 0
5 V* FS Cet CV* 02 35 07.5939240480 +03 43 56.816311296 11.027 12.209 12.412 12.325 11.968 DA1+dM 367 0
6 SDSS J023804.39-000545.7 WD* 02 38 04.3965744168 -00 05 45.710139732           DA+M 18 0
7 GALEX J030138.2+050220 WD* 03 01 38.2315293504 +05 02 18.864882708           DA+M4 11 0
8 GALEX J030544.4-074941 WD* 03 05 44.4088794600 -07 49 41.255755932           DA+dMe 18 0
9 SDSS J030716.44+384822.8 SB* 03 07 16.4510153952 +38 48 22.910725260           M3+DA 7 0
10 SDSS J032038.72-063823.0 ** 03 20 38.7262435368 -06 38 22.922788956   18.7   18.9   DA+M 17 0
11 V* LL Eri EB? 03 32 43.4696700072 -08 55 39.254639412   14.415 13.60     DA+M2.5V 36 0
12 V* RR Cae WD* 04 21 05.5631820426 -48 39 07.061113433 14.50 14.92 14.40     DA7.8 150 1
13 SDSS J080736.96+072412.0 ** 08 07 36.9604804968 +07 24 12.075123132           DA+M 14 0
14 SDSS J083354.84+070240.1 ** 08 33 54.8566618656 +07 02 40.237427652           DA+M 21 0
15 CD-32 5613 WD* 08 41 32.4290850497 -32 56 32.915823461   12.07 11.85 12.3   DA5.5 297 0
16 GALEX J085335.9+072032 WD* 08 53 36.0343495368 +07 20 33.534165552           DC+M3 6 0
17 GALEX J092452.4+002449 WD* 09 24 52.4057728488 +00 24 48.996111996           DA+dMe 28 0
18 GALEX J094913.4+032255 WD* 09 49 13.3692482304 +03 22 54.557292324           DA+dMe 21 0
19 GD 108 HS* 10 00 47.2462375824 -07 33 30.773994012 12.406 13.349 13.563 13.662 13.781 sdB 144 1
20 SDSS J100609.18+004417.1 WD* 10 06 09.1742329440 +00 44 17.077582896           DA7+M 21 0
21 V* UZ Sex WD* 10 28 34.8776549016 -00 00 29.394837900   13.89   13.9   DA3+dM 79 0
22 SDSS J110517.60+385125.7 WD* 11 05 17.5778265984 +38 51 25.948322100           DA+M3 7 0
23 LBQS 1140+0026 WD* 11 43 12.5738603472 +00 09 26.642788056   18.45 18.3     DA4.0+dM 35 0
24 V* EG UMa CV* 12 15 44.0979312096 +52 31 01.289011692   13.0 13.230 13.149   DA+dM 110 1
25 SDSS J123139.80-031000.4 ** 12 31 39.8031544320 -03 10 00.402455928           DA+M 14 0
26 BD+25 2534 HS* 12 37 23.5161671712 +25 03 59.867922240 9.117 10.26 10.59 10.642 10.809 sdB1(k) 243 0
27 GALEX J130012.5+190857 WD* 13 00 12.5067666600 +19 08 57.235596360           DA+M4 6 0
28 SDSS J131334.74+023750.8 ** 13 13 34.7472177096 +02 37 50.730224160           DA+M 15 0
29 GALEX J131632.0-003758 WD* 13 16 32.0482722480 -00 37 58.046849904           DC+M3 7 0
30 PB 4095 WD* 13 48 41.6345425224 +18 34 10.567727472   17       DA+M4 21 0
31 GALEX J135228.1+091039 WD* 13 52 28.1418570408 +09 10 39.074076120           DAe:+M 15 0
32 GALEX J141134.7+102840 WD* 14 11 34.6996128888 +10 28 39.821940948     19.15     DA+M 25 0
33 2MASS J14295117+5759492 SB* 14 29 51.1906922112 +57 59 48.976316700           M3+D 11 0
34 GD 337 WD* 14 34 43.2932850600 +53 35 21.186386556   16.06 16.09     DA3+K 63 0
35 2MASS J14364201+5741462 SB* 14 36 42.0150602304 +57 41 46.295783664           M3+D 7 0
36 SDSS J143746.69+573706.0 ** 14 37 46.6892252136 +57 37 06.057895512           DA+dMe 15 0
37 LBQS 1437-0053 CV* 14 39 47.6208102216 -01 06 06.781449132           DA1+Me 30 0
38 SDSS J150657.57-012021.7 WD* 15 06 57.5783653464 -01 20 21.680881296           DA+M 20 0
39 CSO 579 WD* 15 19 21.7358813784 +35 36 25.804056348   17       DA+M 24 0
40 GALEX J152359.2+460449 WD* 15 23 59.2372798536 +46 04 48.873588312           DA+M 16 0
41 CSO 749 blu 15 23 59.5 +46 04 38   17       ~ 2 0
42 CBS 318 WD* 15 24 25.2151600800 +50 40 09.848642160   17       DA+dMe 30 0
43 GALEX J152821.5+344315 WD* 15 28 21.4594916040 +34 43 14.958308712           DA+M 18 0
44 LAWD 59 WD* 15 45 10.9360242504 -38 18 51.617130048   16.5 14.6 14.3   DA2.7 13 1
45 GALEX J155808.4+264225 WD* 15 58 08.4981349224 +26 42 25.774838280           DA+M4 11 0
46 GALEX J155904.6+035623 CV* 15 59 04.6253101512 +03 56 23.485974000           DAe+M 18 0
47 SDSS J160821.48+085149.9 WD* 16 08 21.4803213624 +08 51 49.931466372           DA+M 12 0
48 SDSS J161113.14+464044.3 WD* 16 11 13.1407874040 +46 40 44.233983084           DA+M 16 0
49 SDSS J161145.89+010327.8 ** 16 11 45.8881738632 +01 03 27.855283356           DA+dMe 19 0
50 GALEX J162354.5+630640 WD* 16 23 54.4570174944 +63 06 40.298260896           DA+M3 6 0
51 GALEX J162552.9+640024 WD* 16 25 52.9260781032 +64 00 24.822506988           DA+M6 7 0
52 SDSS J164615.60+422349.3 ** 16 46 15.6124491192 +42 23 49.275912264           DA+M 22 0
53 GALEX J170509.6+210904 WD* 17 05 09.6534830232 +21 09 04.442823828           DA+M 21 0
54 GALEX J171810.2+610113 WD* 17 18 10.1557623528 +61 01 14.025822096           DA+M 24 0
55 SDSS J173101.49+623316.0 ** 17 31 01.4958522528 +62 33 15.941287980           DA+dMe 27 0
56 SDSS J184412.58+412029.4 WD* 18 44 12.6277511688 +41 20 29.426324424           DA+M6 9 0
57 SDSS J204541.90-050925.7 ** 20 45 41.9067817104 -05 09 25.690628160           DA+M 17 0
58 SDSS J211205.31+101428.0 WD* 21 12 05.3135681736 +10 14 28.040318988   17.2   17.8   DA+dMe 22 0
59 GALEX J211428.4-010357 WD* 21 14 28.4153295168 -01 03 57.134555244           DA+M3 18 0
60 GALEX J212052.0-005827 WD* 21 20 51.9230881800 -00 58 27.284932776           DA+M 23 0
61 SDSS J212320.74+002455.5 WD* 21 23 20.7360003720 +00 24 55.588919796           DA+M 25 0
62 GALEX J213218.1+003159 WD* 21 32 18.1167337752 +00 31 58.847829420           DA+M 27 0
63 2MASS J21495227-0717569 SB* 21 49 52.2756988824 -07 17 56.870526984           ~ 2 0
64 BD+28 4211 HS* 21 51 11.0221915656 +28 51 50.367627468 8.922 10.25 10.58 10.656 10.831 sdO2VIIIHe5 793 0
65 GALEX J215614.5-000237 WD* 21 56 14.5732467480 -00 02 37.450116924           DA+? 13 0
66 BD+25 4655 HS* 21 59 41.9748629928 +26 25 57.403455672 8.27 9.39 9.68     sdO6 118 0
67 SDSS J220848.99+122144.6 ** 22 08 48.9940315008 +12 21 44.684689140           DA+dMe 10 0
68 PB 5119 WD* 22 16 16.5908353200 +01 02 05.704602828   17.9 18.60 17.7 17.68 DA+dMe 24 0
69 SDSS J224038.37-093541.4 WD* 22 40 38.3756323872 -09 35 41.421597792           DA+M 25 0
70 GALEX J224307.5+312240 WD* 22 43 07.5944709336 +31 22 39.222009120           DC+M5 7 0
71 GALEX J231105.5+220209 WD* 23 11 05.6519611944 +22 02 08.654043804           DA+M3 7 0
72 SDSS J231825.23-093539.2 WD* 23 18 25.2329758344 -09 35 39.071089392           DA+M 23 0
73 Feige 110 HS* 23 19 58.3996844256 -05 09 56.171142864 10.360 11.45 11.50 11.970 12.145 sdO8VIIIHe5 625 1

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2023.09.29-15:19:01

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