Spiral shocks in the accretion disk of the dwarf nova U Geminorum

被引：0
|
作者：
Neustroev, VV
Borisov, NV
机构：
[1] Udmurt State Univ, Dept Astron & Mech, Izhevsk 426034, Russia
[2] Special Astrophys Observ, Karachaevo Cherkesia 357147, Russia
来源：
ASTRONOMY & ASTROPHYSICS | 1998年 / 336卷 / 03期
关键词：
accretion; accretion disks; line : profiles; line : formation; novae; cataclysmic variables; stars : individual : U Gem;
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a study of the observable spectral manifestations associated with spiral shocks within quiescent accretion disks and compare them with observations of the dwarf nova U Geminorum. Our results indicate that the orbital behaviour of the hydrogen emission line profile in the spectrum of U Gem can be reproduced via a simple model of the accretion disk with two symmetrically located spiral shocks with the spiral angle theta about 60 degrees. This provides for the first time convincing evidence for the existence of spiral shocks in the accretion disk of a cataclysmic variable in quiescence.
引用
收藏
页码：L73 / L76
页数：4
相关论文
共 50 条
  • [41] THE FEASIBILITY OF OBSERVING SPIRAL SHOCKS IN ACCRETION DISKS
    BUNK, W
    LIVIO, M
    VERBUNT, F
    ASTRONOMY & ASTROPHYSICS, 1990, 232 (02) : 371 - 376
  • [42] CONVECTIVE ACCRETION DISKS AND THE ONSET OF DWARF NOVA OUTBURSTS
    CANNIZZO, JK
    GHOSH, P
    WHEELER, JC
    ASTROPHYSICAL JOURNAL, 1982, 260 (02): : L83 - L86
  • [43] Interaction between the ejecta, the accretion disk, and the secondary star in the recurrent nova system U Sco
    Figueira, Joana
    Jose, Jordi
    Cabezon, Ruben
    Garcia-Senz, Domingo
    ASTRONOMY & ASTROPHYSICS, 2025, 693
  • [44] Orbital period analysis of eclipsing dwarf novae: U Geminorum
    Zhibin Dai
    Shengbang Qian
    Astrophysics and Space Science, 2009, 321 : 91 - 100
  • [45] DWARF NOVA BURST ASYMMETRY AND THE PHYSICS OF ACCRETION DISKS
    CANNIZZO, JK
    WHEELER, JC
    POLIDAN, RS
    ASTROPHYSICAL JOURNAL, 1986, 301 (02): : 634 - 640
  • [46] Dynamo driven accretion discs and dwarf nova eruptions
    Armitage, PJ
    Livio, M
    Pringle, JE
    CATACLYSMIC VARIABLES AND RELATED OBJECTS, 1996, 208 : 107 - 108
  • [47] The disk instability model for dwarf nova outbursts
    Osaki, Y
    PROCEEDINGS OF THE JAPAN ACADEMY SERIES B-PHYSICAL AND BIOLOGICAL SCIENCES, 2005, 81 (08): : 291 - 305
  • [48] The flared disk in the dwarf nova Z Cha
    Robinson, EL
    Wood, JH
    Wade, RA
    WILD STARS IN THE OLD WEST: PROCEEDINGS OF THE 13TH NORTH AMERICAN WORKSHOP ON CATACLYSMIC VARIABLES AND RELATED OBJECTS, 1997, 137 : 531 - 532
  • [49] Orbital period analysis of eclipsing dwarf novae: U Geminorum
    Dai, Zhibin
    Qian, Shengbang
    ASTROPHYSICS AND SPACE SCIENCE, 2009, 321 (02) : 91 - 100
  • [50] Evidence for mass accretion driven by spiral shocks onto the white dwarf in SDSS J123813.73-033933.0
    Pala, A. F.
    Gansicke, B. T.
    Marsh, T. R.
    Breedt, E.
    Hermes, J. J.
    Landstreet, J. D.
    Schreiber, M. R.
    Townsley, D. M.
    Wang, L.
    Aungwerojwit, A.
    Hambsch, F. -J.
    Monard, B.
    Myers, G.
    Nelson, P.
    Pickard, R.
    Poyner, G.
    Reichart, D. E.
    Stubbings, R.
    Godon, P.
    Szkody, P.
    De Martino, D.
    Dhillon, V. S.
    Knigge, C.
    Parsons, S. G.
    MONTHLY NOTICES OF THE ROYAL ASTRONOMICAL SOCIETY, 2019, 483 (01) : 1080 - 1103
12345