摘要: We have obtained spectroscopic and photometric measurements of the close DA plus dMe binaries BPM 71214 EC 13471-1258, established their orbital parameters. measured an period 0.201626 day for 0.15074 13471-1258. The light curves show presence ellipsoidal variations in both systems with 13471-1258 also being eclipsing binary. Detailed modeling data (R I 71214, B R 13471-1258) results mass ratios range 0.5 to 0.7 shows that red dwarfs are nearly filling Roche lobes. Because there is no evidence transfer systems, we conclude possibly hibernating novae.
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Michael M. Shara, Mario Livio, Anthony F. J. Moffat, Marina Orio, Do novae hibernate during most of the millenia between eruptions? Links between dwarf and classical novae, and implications for the space densities and evolution of cataclysmic binaries The Astrophysical Journal. ,vol. 311, pp. 163- ,(1986) , 10.1086/164762
Adela Kawka, Stéphane Vennes, Rolf Koch, Andrew Williams, Optical observations and orbital parameters of the close DA plus dMe binaries BPM 71214, EUVE J0720-31.7, BPM 6502, and EC 13471-1258 The Astronomical Journal. ,vol. 124, pp. 2853- 2867 ,(2002) , 10.1086/343836
Are some pre-cataclysmic variables also post-cataclysmic variables? Monthly Notices of the Royal Astronomical Society. ,vol. 276, pp. 1336- ,(1995) , 10.1093/MNRAS/276.4.1336
Matt A. Wood, Theoretical white dwarf luminosity functions: DA models LNP. ,vol. 443, pp. 41- 45 ,(1995) , 10.1007/3-540-59157-5_171
Adela Kawka, Stéphane Vennes, Spectroscopic and photometric observations of the close binary BPM 71214 The Astronomical Journal. ,vol. 125, pp. 1444- 1447 ,(2003) , 10.1086/367598
T.R. Marsh, Detached white-dwarf close-binary stars - CV's extended family New Astronomy Reviews. ,vol. 44, pp. 119- 124 ,(2000) , 10.1016/S1387-6473(00)00024-5
Todd C. Hillwig, R. Kent Honeycutt, Jeff W. Robertson, Post-Common-Envelope Binary Stars and the Precataclysmic Binary PG 1114+187 The Astronomical Journal. ,vol. 120, pp. 1113- 1119 ,(2000) , 10.1086/301479
A. R. King, J. Frank, U. Kolb, H. Ritter, Mass transfer cycles in cataclysmic variables web science. ,vol. 444, ,(1995) , 10.1086/187854
D. Kilkenny, D. O'Donoghue, C. Koen, R. S. Stobie, A. Chen, The Edinburgh-Cape Blue Object Survey — II. Zone 1 — the North Galactic Cap Monthly Notices of the Royal Astronomical Society. ,vol. 287, pp. 867- 893 ,(1997) , 10.1093/MNRAS/287.4.867
J. Christopher Clemens, I. Neill Reid, John E. Gizis, M. Sean O'Brien, The Lower Main Sequence and the Orbital Period Distribution of Cataclysmic Variable Stars The Astrophysical Journal. ,vol. 496, pp. 352- 363 ,(1998) , 10.1086/305353