G. V. Lipunova, N. I. Shakura


The analytic investigation of time dependent accretion in disk is carried out. We consider a disk in a binary system at outburst which has fixed tidally truncated outer radius. The standard model (Shakura-Sunyaev 1973) of the disk is considered. The fully analytic solutions in two different opacity regimes are characterized by power-law variations of accretion rate with time. The solutions supply asymptotic description of the disk evolution after the peak of outburst while the disk is fully ionized. The X-ray flux of multicolor (black-body) α-disk is obtained to vary quasi-exponentially. The application to X-ray novae is briefly discussed concerning observed faster-than-power decays of X-ray light curves. The case of time dependent advective disk is mentioned.

Ключові слова

Stars; binary; novae; cataclysmic variables; X-rays; bursts; stars; individual; A 0620-00

Повний текст:

PDF (English)


Cannizzo J.K., Chen W., Livio M.: 1995, ApJ, 454, 880

Cannizzo J.K.: 1998, ApJ, 494, 366

Chen W., Shrader C.R., Livio M.: 1997, ApJ, 491, 312

Filipov L.G.: 1984, Advances in Space Research, 3, 305

Ichikawa S., Osaki Y.: 1994, PASJ, 46, 621

Kato S., Fukue J., Mineshige S.: 1998, Black-hole Accretion Disks. Kyoto University Press, Japan

Ketsaris N.A., Shakura N.I.: 1998, Astronomical and Astrophysical Transactions, 15, 193.

Kim S.-W., Wheeler J.C., Mineshige S.: 1999, PASJ, 51, 1999.

King A.R., Ritter H.: 1998, MNRAS, , 293, L42

Lipunova G.V., Shakura N.I.: 1999, in press.

Lust R.: 1952, Naturforsch, 7a, 87.

Lynden-Bell D., Pringle J.E.: 1974, MNRAS, 168, 603

Lyubarskii Yu.E., Shakura N.I.: 1987, Soviet Astr. Letters, 13, 386

Mineshige S., Yamasaki T., Ishizaka C.: 1993, PASJ, 45, 707

Narayan R., Yi I.: 1995, ApJ, 452, 710

Paczynski B.: 1977, ApJ, 216, 822

Shakura N.I., Sunyaev R.A.: 1973, A&A, 24, 337

Tanaka Y.: Shibazaki N., 1996, ARA&A, 34, 607

Weizsacker C.F.: 1948, Z. Naturforsch, 3a, 524

DOI: https://doi.org/10.18524/1810-4215.1999.12.93090


  • Поки немає зовнішніх посилань.

Copyright (c) 2017 Odessa Astronomical Publications

Creative Commons License
Ця робота ліцензована Creative Commons Attribution-NonCommercial 4.0 International License.