SUPERHUMPS, RESONANCES AND ACCRETION DISKS

被引:232
作者
WHITEHURST, R
KING, A
机构
[1] Astronomy Group, University of Leicester, Leicester
关键词
D O I
10.1093/mnras/249.1.25
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
The structure of accretion discs within binary systems is shown to be influenced by the excitation of resonances within the disc. Of particular importance is that near the 3:1 commensurability with the stars' orbit. This can be used to explain the superhump phenomenon of SU Ursae Majoris dwarf novae in superoutburst. This resonance can only appear for mass ratios which satisfy M2/M1 less-than-or-equal-to 0.25-0.33: for larger mass ratios the available resonances are weaker and of the wrong form to produce the superhump phenomenon. The mass-transfer stream is shown to be an important contributor to the growth rate of the resonance.
引用
收藏
页码:25 / 35
页数:11
相关论文
共 11 条
[1]  
BATH GT, 1974, MON NOT R ASTRON SOC, V246, P84
[2]   APPROXIMATIONS TO THE RADII OF ROCHE LOBES [J].
EGGLETON, PP .
ASTROPHYSICAL JOURNAL, 1983, 268 (01) :368-369
[3]  
GREENBERG R, 1984, SATURN, P593
[4]  
HENON M, 1965, ANN ASTROPHYS, V28, P992
[5]  
Hirose M., 1989, THEORY ACCRETION DIS, P207
[6]  
KING AR, 1988, Q J ROY ASTRON SOC, V29, P1
[7]   PARTICLE METHODS FOR HYDRODYNAMICS [J].
MONAGHAN, JJ .
COMPUTER PHYSICS REPORTS, 1985, 3 (02) :71-124
[8]  
OSAKI Y, 1989, PUBLS ASTR SOC JAPAN, P183
[9]   NUMERICAL SIMULATIONS OF ACCRETION DISKS .1. SUPERHUMPS - A TIDAL PHENOMENON OF ACCRETION DISKS [J].
WHITEHURST, R .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1988, 232 (01) :35-51
[10]   NUMERICAL SIMULATIONS OF ACCRETION DISKS .2. DESIGN AND IMPLEMENTATION OF A NEW NUMERICAL-METHOD [J].
WHITEHURST, R .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 1988, 233 (03) :529-551