Observability of characteristic binary-induced structures in circumbinary disks
Observability of characteristic binary-induced structures in circumbinary disks
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环双星盘中特征双星诱导结构的可观测性
DOI：
10.1051/0004-6361/201630084
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发表时间：
2017
影响因子：
6.5
通讯作者：
T. F. Illenseer
中科院分区：
文献类型：
--
作者：
R. Avramenko;S. Wolf;T. F. Illenseer
大部分的原行星盘形成于恒星双星周围。双星系统产生了一个依赖于时间的非轴对称引力势，在环双星盘上产生了强烈的潮汐力。这导致了环双星盘的基本物理性质的变化，这反过来又会导致独特的结构，这些结构可能是用当前一代仪器观察到的。首先，我们进行2D流体动力学模拟。所得到的密度分布后处理的3D辐射传输代码生成再发射和散射光图。基于这些分布，我们研究了各种参数的影响，如质量的恒星组件，质量的磁盘，和二进制分离上可观察到的功能在circumbinary disks.ResultsWe发现，阿塔卡马大（亚）毫米阵列（阿尔马）以及欧洲极大望远镜（E-ELT）是能够跟踪不对称的内部区域的circumbinary磁盘，它们受双星-磁盘相互作用的影响最大。在亚毫米/毫米波长的观测允许在盘的内缘和内腔的密度波的检测。使用E-ELT可以在红外波长范围内部分地解析盘的最内部部分，包括盘的边缘，吸积臂，以及潜在的围绕每个双星组件的预期拱星盘。
ContextA substantial fraction of protoplanetary disks form around stellar binaries. The binary system generates a time-dependent non-axisymmetric gravitational potential, inducing strong tidal forces on the circumbinary disk. This leads to a change in basic physical properties of the circumbinary disk, which should in turn result in unique structures that are potentially observable with the current generation of instruments.AimsThe goal of this study is to identify these characteristic structures, constrain the physical conditions that cause them, and evaluate the feasibility of observing them in circumbinary disks.MethodsTo achieve this, first we perform 2D hydrodynamic simulations. The resulting density distributions are post-processed with a 3D radiative transfer code to generate re-emission and scattered light maps. Based on these distributions, we study the influence of various parameters, such as the mass of the stellar components, mass of the disk, and binary separation on observable features in circumbinary disks.ResultsWe find that the Atacama Large (sub-)Millimetre Array (ALMA) as well as the European Extremely Large Telescope (E-ELT) are capable of tracing asymmetries in the inner region of circumbinary disks, which are affected most by the binary-disk interaction. Observations at submillimetre/millimetre wavelengths allow the detection of the density waves at the inner rim of the disk and inner cavity. With the E-ELT one can partially resolve the innermost parts of the disk in the infrared wavelength range, including the disk’s rim, accretion arms, and potentially the expected circumstellar disks around each of the binary components.
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DOI：
10.1088/2041-8205/748/2/l22
发表时间：
2012-02
期刊：
The Astrophysical Journal Letters
影响因子：
--
作者：
T. Muto;C. Grady;J. Hashimoto;M. Fukagawa;J. Hornbeck;M. Sitko;R. Russell;C. Werren;M. Curé;T. Currie;N. Ohashi;Y. Okamoto;M. Momose;M. Honda;S. Inutsuka;T. Takeuchi;R. Dong;L. Abe;W. Brandner;Timothy D. Brandt;J. Carson;S. Egner;M. Feldt;T. Fukue;M. Goto;O. Guyon;Y. Hayano;M. Hayashi;S. Hayashi;T. Henning;K. Hodapp;M. Ishii;M. Iye;M. Janson;R. Kandori;G. Knapp;T. Kudo;N. Kusakabe;M. Kuzuhara;T. Matsuo;S. Mayama;M. McElwain;S. Miyama;J. Morino;A. Moro-Martin;T. Nishimura;T. Pyo;E. Serabyn;H. Suto;R. Suzuki;M. Takami;N. Takato;H. Terada;C. Thalmann;D. Tomono;E. Turner;M. Watanabe;J. Wisniewski;T. Yamada;H. Takami;T. Usuda;M. Tamura
通讯作者：
T. Muto;C. Grady;J. Hashimoto;M. Fukagawa;J. Hornbeck;M. Sitko;R. Russell;C. Werren;M. Curé;T. Currie;N. Ohashi;Y. Okamoto;M. Momose;M. Honda;S. Inutsuka;T. Takeuchi;R. Dong;L. Abe;W. Brandner;Timothy D. Brandt;J. Carson;S. Egner;M. Feldt;T. Fukue;M. Goto;O. Guyon;Y. Hayano;M. Hayashi;S. Hayashi;T. Henning;K. Hodapp;M. Ishii;M. Iye;M. Janson;R. Kandori;G. Knapp;T. Kudo;N. Kusakabe;M. Kuzuhara;T. Matsuo;S. Mayama;M. McElwain;S. Miyama;J. Morino;A. Moro-Martin;T. Nishimura;T. Pyo;E. Serabyn;H. Suto;R. Suzuki;M. Takami;N. Takato;H. Terada;C. Thalmann;D. Tomono;E. Turner;M. Watanabe;J. Wisniewski;T. Yamada;H. Takami;T. Usuda;M. Tamura
通过动力学相互作用和轨道衰变形成紧密的双星系统
DOI：
--
发表时间：
2002
期刊：
影响因子：
--
作者：
M. Bate;I. Bonnell;V. Bromm
通讯作者：
V. Bromm
影响因子：
6.5
作者：
W. Kley;N. Haghighipour
通讯作者：
W. Kley;N. Haghighipour
圆形结构中的行星形成：湍流抑制星体吸积
DOI：
10.1088/2041-8205/761/1/l7
发表时间：
2012
期刊：
The Astrophysical Journal Letters
影响因子：
--
作者：
S. Meschiari
通讯作者：
S. Meschiari
环二元盘中的结构：可观测性的前景
DOI：
10.1051/0004-6361/201321770
发表时间：
2015
期刊：
arXiv: Earth and Planetary Astrophysics
影响因子：
--
作者：
J.P. Ruge;S. Wolf;T. Demidova;V. Grinin
通讯作者：
V. Grinin