Disk eclipse in IY UMa: Further evidence for stream overflow

被引:0
作者
Smak, J [1 ]
机构
[1] Polish Acad Sci, N Copernicus Astron Ctr, PL-00716 Warsaw, Poland
来源
ACTA ASTRONOMICA | 2003年 / 53卷 / 02期
关键词
binaries : eclipsing; novae; cataclysmic variables; stars : individual : IYUMa;
D O I
暂无
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
Disk eclipse light curve of dwarf nova IY UMa at quiescence (Steeghs et al. 2003) is analyzed. It is found that about 10% of the observed disk flux comes from parts of the stream which are overflowing the disk. They are also responsible for the residual flickering present during total eclipse of the hot spot. The fraction of mass involved in the stream overflow is very crudely estimated to be about 20%.
引用
收藏
页码:167 / 173
页数:7
相关论文
共 23 条
[1]   Hydrodynamics of the stream-disk impact in interacting binaries [J].
Armitage, PJ ;
Livio, M .
ASTROPHYSICAL JOURNAL, 1998, 493 (02) :898-+
[2]   Spatially resolved spectra of the accretion disc of the nova-like variable UU Aquarii [J].
Baptista, R ;
Silveira, C ;
Steiner, JE ;
Horne, K .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2000, 314 (04) :713-726
[3]   V1315 Aquilae and the nature of SW Sextantis stars [J].
Hellier, C .
ASTROPHYSICAL JOURNAL, 1996, 471 (02) :949-957
[4]   On the occurrence of stream overflow in cataclysmic variables with accretion disks [J].
Hessman, FV .
ASTROPHYSICAL JOURNAL, 1999, 510 (02) :867-873
[5]   Substantial stream-disc overflow found in three-dimensional SPH simulations of cataclysmic variables [J].
Kunze, S ;
Speith, R ;
Hessman, FV .
MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2001, 322 (03) :499-514
[6]  
Kurucz R., 1993, 13 CDROM
[7]   GAS-DYNAMICS OF SEMIDETACHED BINARIES .2. VERTICAL STRUCTURE OF STREAM [J].
LUBOW, SH ;
SHU, FH .
ASTROPHYSICAL JOURNAL, 1976, 207 (01) :L53-L55
[8]  
PACZYNSKI B, 1980, ACTA ASTRON, V30, P125
[9]   PHOTOMETRIC STUDY OF RECURRENT NOVA WZ SAGITTAE AT MINIMUM LIGHT [J].
ROBINSON, EL ;
NATHER, RE ;
PATTERSON, J .
ASTROPHYSICAL JOURNAL, 1978, 219 (01) :168-182
[10]  
ROBINSON EL, 1993, ACCRETION DISKS COMP, P75