R144: a very massive binary likely ejected from R136 through a binary–binary encounter

R144: a very massive binary likely ejected from R136 through a binary–binary encounter
复制标题

R144:一个非常巨大的双星,可能通过双星相遇从 R136 中喷出

DOI:
10.1093/mnras/stt2219
复制
发表时间:
2014
影响因子:
4.8
通讯作者:
Banerjee
Banerjee
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
Kroupa;Banerjee

文献摘要

参考文献

被引文献

相似文献

R144 是最近被证实的一个非常巨大的光谱双星,它似乎与大质量年轻星团 R136 的核心隔离。 Sana 等人声称动态喷射假说作为其位置的起源是不可能的。由于其二元性质和高质量。我们在这里通过直接 N 体计算证明,通过与一个非常大的系统的近距离接触,一个非常大的双星系统可以很容易地从类似 R136 的星团中动态弹出。四分之一的 N 体星团模型会产生一个动态喷射的非常巨大的双星系统,其质量与 R144 相当。该系统的系统质量为 ≈355 M⊙,距离其母星团中心 36.8 pc,由于二元相互作用,以 57 km s−1at 2 Myr 的速度远离母星团。这意味着 R144 可能是通过与另一颗巨大双星或单星的强烈相遇而从 R136 中喷射出来的。此外,我们还讨论了在 N 体模型中从其母星团动态弹出的所有大质量双星和单星。
R144 is a recently confirmed very massive, spectroscopic binary which appears isolated from the core of the massive young star cluster R136. The dynamical ejection hypothesis as an origin for its location is claimed improbable by Sana et al. due to its binary nature and high mass. We demonstrate here by means of directN-body calculations that a very massive binary system can be readily dynamically ejected from an R136-like cluster, through a close encounter with a very massive system. One out of fourN-body cluster models produces a dynamically ejected very massive binary system with a mass comparable to R144. The system has a system mass of ≈355 M⊙and is located at 36.8 pc from the centre of its parent cluster, moving away from the cluster with a velocity of 57 km s−1at 2 Myr as a result of a binary–binary interaction. This implies that R144 could have been ejected from R136 through a strong encounter with another massive binary or single star. In addition, we discuss all massive binaries and single stars which are ejected dynamically from their parent cluster in theN-body models.
超大质量 30 Dor 主序 WN6h O 双星 R145 的第一个轨道解
DOI: --
发表时间: 2009
期刊:
影响因子: --
作者:
O. Schnurr;O. Schnurr;A. Moffat;A. Villar;N. St;N. Morrell
通讯作者: N. Morrell
DOI: 10.1088/0004-637x/746/1/15
发表时间: 2011-11
期刊: The Astrophysical Journal
影响因子: --
作者:
S. Banerjee;P. Kroupa;Seungkyung Oh
通讯作者: S. Banerjee;P. Kroupa;Seungkyung Oh
球状星团中原初质量偏析的证据
DOI: --
发表时间: 2008
期刊:
影响因子: --
作者:
H. Baumgardt;G. de Marchi;P. Kroupa
通讯作者: P. Kroupa
DOI: --
发表时间: 2013
期刊:
影响因子: --
作者:
H. Sana;T. Boeckel;F. Tramper;L. Ellerbroek;A. D. Koter;A. D. Koter;A. D. Koter;L. Kaper;A. Moffat;O. Schnurr;F. Schneider;D. Gies
通讯作者: D. Gies
DOI: 10.1126/science.1223344
发表时间: 2012-07
期刊: Science
影响因子: 56.9
作者:
H. Sana;S. D. Mink;A. D. Koter;N. Langer;C. Evans;M. Gieles;E. Gosset;R. Izzard;J. L. Bouquin-J.
通讯作者: H. Sana;S. D. Mink;A. D. Koter;N. Langer;C. Evans;M. Gieles;E. Gosset;R. Izzard;J. L. Bouquin-J.