THE ACCRETION RATE INDEPENDENCE OF HORIZONTAL BRANCH OSCILLATION IN XTE J1701-462

THE ACCRETION RATE INDEPENDENCE OF HORIZONTAL BRANCH OSCILLATION IN XTE J1701-462
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XTE J1701-462 中水平分支振荡的增殖率独立性

DOI:
10.1088/0004-637x/786/2/119
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发表时间:
2014-03
影响因子:
4.9
通讯作者:
Xu, Renxin
Xu, Renxin
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Qu, Jinlu;Bu, Qingcui;Wang, Dehua;Xu, Renxin

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研究了一颗独特的中子星星低质量X射线双星XTE J1701-462的时间和能谱特性。假设水平分支/正常分支(HB/NB)顶点作为吸积率的参考位置,HB/NB顶点的水平分支振荡(HBO)大约为50 Hz。这表明高压氧与吸积速率和源强度无关。在HB/NB顶点和NB/耀斑分支(FB)顶点的谱分析表明,在HB/NB和NB/FB顶点可能产生不同的吸积速率。康普顿化分量可以通过受约束的破幂律或nthComp来拟合。与GX 17+2不同,HBO的频率与内盘半径呈正相关,这与Lense-Thirring进动模型的预测相矛盾。XTEJ 1701 -462在类天鹅相和类天球相的宽带噪声的转折频率与HBO的特征频率之间存在正相关关系,即W-K关系。观察到高压氧的频率与光子能量之间存在线性关系。此外,HBO的均方根值随着光子能量的增加而增加,直到10 keV。我们讨论了XTE J1701-462中日冕中HBO的可能起源。
We study the temporal and energy spectral properties of the unique neutron star low-mass X-ray binary XTE J1701-462. Assuming the horizontal branch/normal branch (HB/NB) vertex as a reference position of the accretion rate, the horizontal branch oscillation (HBO) of the HB/NB vertex is roughly 50 Hz. It indicates that the HBO is independent of the accretion rate or the source intensity. The spectral analysis shows in the HB/NB vertex and in the NB/flaring branch (FB) vertex, which implies that different accretion rates may be produced in the HB/NB and NB/FB vertex. The Comptonization component could be fitted by a constrained broken power law or nthComp. Unlike GX 17+2, the frequencies of HBO positively correlate with the inner disk radius, which contradict with the prediction of the Lense–Thirring precession model. XTE J1701-462, both in the Cyg-like phase and in the Sco-like phase, follows a positive correlation between the break frequency of broadband noise and the characteristic frequency of HBO, which is called the W–K relation. An anticorrelation between the frequency of HBO and photon energy is observed. Moreover, the rms of HBO increases with photon energy until ∼10 keV. We discuss the possible origin of HBO from the corona in XTE J1701-462.
DOI: 10.1086/520759
发表时间: 2007-06
期刊: The Astrophysical Journal
影响因子: --
作者:
L. Titarchuk;S. Kuznetsov;N. Shaposhnikov
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影响因子: --
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XTE J1701-462 中沿分支的跨光谱时滞演化
DOI: 10.1088/0004-637x/767/2/167
发表时间: 2013-03
影响因子: 4.9
作者:
Chen, Li;Qu, Jin-lu;Bu, Qing-cui;Wang, De-hua
通讯作者: Wang, De-hua
DOI: --
发表时间: 2011-09
期刊: arXiv: High Energy Astrophysical Phenomena
影响因子: --
作者:
T. Belloni;S. Motta;Teodoro Munoz-Darias INAF-OAB;Merate;Italy.;Universita' dell'Insubria;Como;Instituto de Astrof'isica de Canarias-Instituto-de-Astrof'isica-de-Canarias-102997450;La Laguna;Tenerife;Spain.
通讯作者: T. Belloni;S. Motta;Teodoro Munoz-Darias INAF-OAB;Merate;Italy.;Universita' dell'Insubria;Como;Instituto de Astrof'isica de Canarias-Instituto-de-Astrof'isica-de-Canarias-102997450;La Laguna;Tenerife;Spain.
DOI: 10.1088/0004-637x/710/1/836
发表时间: 2009-12
期刊: The Astrophysical Journal
影响因子: --
作者:
Jing Qu;F. Lu;Yuzhang Lu;L. Song;S. Zhang;Guo-Qiang Ding;Jingying Wang
通讯作者: Jing Qu;F. Lu;Yuzhang Lu;L. Song;S. Zhang;Guo-Qiang Ding;Jingying Wang