Theoretical restrictions on accretion disks |
| |
Authors: | B F Liu G Z Xie K F Ji |
| |
Institution: | (1) Yunnan Observatory, Academia Sinica, Kunming, Yunnan, P.R. China;(2) United Laboratories for Optical Astronomy, Academia Sinica, P.R. China;(3) Yunnan Observatory, Academia Sinica, Kunming, Yunnan, P.R. China;(4) United Laboratories for Optical Astronomy, Academia Sinica, P.R. China;(5) Center of Astronomy and Astrophysics, CCAST (World Laboratory), Beijing, P.R. China;(6) Yunnan Observatory, Academia Sinica, Kunming, Yunnan, P.R. China |
| |
Abstract: | We construct a standard thin disk model taking into account the pressure from both gas and radiation, the opacity contributed by both electron scattering and absorption, and the gravity from both a central object and a disk. A simple and powerful technique for solving the non-linear equations is presented. Through a numerical algorithm for the two equationl for, , , all the disk quantities are expressed as the analytical function of, , . We also discuss the solutions in the limit cases 0, 1 and the parameter range of the linear approximation. From the numerical solutions and limit analyses, we found that it is not necessary to include the self-gravity of the disk. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|