2014A&A...566A.128L


C.D.S. - SIMBAD4 rel 1.7 - 2020.07.03CEST22:02:39

2014A&A...566A.128L - Astronomy and Astrophysics, volume 566A, 128-128 (2014/6-1)

Period and amplitude variations in post-common-envelope eclipsing binaries observed with SuperWASP.

LOHR M.E., NORTON A.J., ANDERSON D.R., COLLIER CAMERON A., FAEDI F., HASWELL C.A., HELLIER C., HODGKIN S.T., HORNE K., KOLB U.C., MAXTED P.F.L., POLLACCO D., SKILLEN I., SMALLEY B., WEST R.G. and WHEATLEY P.J.

Abstract (from CDS):

Period or amplitude variations in eclipsing binaries may reveal the presence of additional massive bodies in the system, such as circumbinary planets. Here, we have studied twelve previously-known eclipsing post-common-envelope binaries for evidence of such light curve variations, on the basis of multi-year observations in the SuperWASP archive. The results for HW Vir provided strong evidence for period changes consistent with those measured by previous studies, and help support a two-planet model for the system. ASAS J102322-3737.0 exhibited plausible evidence for a period increase not previously suggested; while NY Vir, QS Vir and NSVS 14256825 afforded less significant support for period change, providing some confirmation to earlier claims. In other cases, period change was not convincingly observed; for AA Dor and NSVS 07826147, previous findings of constant period were confirmed. This study allows us to present hundreds of new primary eclipse timings for these systems, and further demonstrates the value of wide-field high-cadence surveys like SuperWASP for the investigation of variable stars.

Abstract Copyright:

Journal keyword(s): stars: variables: general - binaries: close - binaries: eclipsing

VizieR on-line data: <Available at CDS (J/A+A/566/A128): stars.dat tablea1.dat-tablea22.dat>

Simbad objects: 16

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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 - 2020
#notes
1 V* V471 Tau Al* 03 50 24.9664598642 +17 14 47.433240686   10.258 9.373   8.393 K2V+DA 615 0
2 HD 269696 HS* 05 31 40.3598545037 -69 53 02.158611829 9.74 10.92 11.15     sdB+dM 171 0
3 RX J0930.1+5339 ** 09 30 10.770144 +53 38 59.63712   10.52 9.54 9.28   ~ 22 0
4 TYC 7709-376-1 HS* 10 23 21.8948397206 -37 36 59.904200339   11.43 11.51     sdB+dM 14 0
5 EC 10246-2707 HS* 10 26 56.4746927507 -27 22 57.098414117   14.56 14.77 14.85   sdB+dM 17 0
6 BD-07 3477 HS* 12 44 20.2386520980 -08 40 16.848587212   10.46 10.594 10.895   sdB2VIIHe3 249 1
7 PSR B1257+12 Psr 13 00 03.1075 +12 40 55.155           ~ 471 1
8 V* DE CVn WD* 13 26 53.2714916743 +45 32 46.687036035   14.23 12.96 12.59   DA+M3V 39 0
9 V* NY Vir HS* 13 38 48.1466489725 -02 01 49.209465866   13.43 13.66 13.75   sdB1VIIHe1 191 1
10 1SWASP J134952.00-131336.9 V* 13 49 52.00 -13 13 36.9           ~ 1 0
11 V* QS Vir WD* 13 49 52.0031855330 -13 13 37.001934702 14.27 14.98 14.40 14.37   DA3+dM 122 1
12 FBS 1531+381 HS* 15 33 49.4443951104 +37 59 28.094103704     13.08     sdB+dM 29 0
13 Kepler-451 HS* 19 38 32.6124172412 +46 03 59.139156733   12.17 12.69 12.46 12.399 sdB+dM 52 0
14 V* V1828 Aql HS* 20 20 00.4586719589 +04 37 56.519765906   12.9   13.34   sdOB+dM 54 1
15 V* V391 Peg HS* 22 04 12.1044101613 +26 25 07.820507559   14.41 14.61 15.00   sdB 99 2
16 HS 2231+2441 HS* 22 34 21.4839930427 +24 56 57.390542495     14.20     sdB+dM 39 1

    Equat.    Gal    SGal    Ecl

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2020.07.03-22:02:39

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