Structures in circumbinary disks: Prospects for observability
Structures in circumbinary disks: Prospects for observability
复制标题
环二元盘中的结构:可观测性的前景
DOI:
10.1051/0004-6361/201321770
复制
发表时间:
2015
期刊:
影响因子:
--
通讯作者:
V. Grinin
中科院分区:
文献类型:
--
作者:
J.P. Ruge;S. Wolf;T. Demidova;V. Grinin
ContextDuring the past decade circumbinary disks have been discovered around various young binary stars. Hydrodynamical calculations indicate that the gravitational interaction between the central binary star and the surrounding disk results in global perturbations of the disk density profile.AimsWe study the observability of characteristic large-scale disk structures resulting from the binary-disk interaction in the case of close binary systems.MethodsWe derived the structure of circumbinary disks from smoothed-particle hydrodynamic simulations. Subsequently, we performed radiative transfer simulations to obtain scattered light and thermal reemission maps. We investigated the influence of the binary mass ratio, the inclination of the binary orbit relative to the disk midplane, and the eccentricity of the binary orbit on observational quantities.ResultsWe find that ALMA will allow tracing asymmetries of the inner edge of the disk and potentially resolving spiral arms if the disk is seen face-on. For an edge-on orientation, ALMA will allow detecting perturbations in the disk density distribution through asymmetries in the radial brightness profile. Through the asymmetric structure of the disks, areas are formed with a temperature 2.6 times higher than at the same location in equivalent unperturbed disks. The time-dependent appearance of the density waves and spiral arms in the disk affects the total re-emission flux of the object by a few percent.
登录
查看更多内容
DOI:
10.1086/344501
发表时间:
2002
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
S. Wolf;H. Klahr
通讯作者:
H. Klahr
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
T. Demidova;N. Sotnikova;V. Grinin
通讯作者:
V. Grinin
DOI:
--
发表时间:
2013
期刊:
Proceedings of the International Astronomical Union
影响因子:
--
作者:
Jean;C. Pinte;S. Maddison;F. M'enard
通讯作者:
F. M'enard
DOI:
10.1111/j.1365-2966.2011.18339.x
发表时间:
2011
影响因子:
4.8
作者:
Miguel de Val;G. Gahm;H. C. Stempels;A. Pepli'nski
通讯作者:
A. Pepli'nski
DOI:
--
发表时间:
2010
期刊:
影响因子:
--
作者:
P. Kaygorodov;D. Bisikalo;A. Fateeva;A. Sytov
通讯作者:
A. Sytov