A Schwarzschild model of the Galactic bar with initial density from N-body simulations
A Schwarzschild model of the Galactic bar with initial density from N-body simulations
复制标题
具有来自 N 体模拟的初始密度的银河棒史瓦西模型
DOI:
10.1093/mnras/stt1537
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发表时间:
2013-08
影响因子:
4.8
通讯作者:
Shen, Juntai
中科院分区:
文献类型:
--
作者:
Wang, Yougang;Mao, Shude;Long, Richard J.;Shen, Juntai
Using the potential from N-body simulations, we construct the Galactic bar models with the Schwarzschild method. By varying the pattern speed and the position angle of the bar, we find that the best-fitting bar model has pattern speed (p) = 40 km s(-1) kpc(-1), and bar angle theta(bar) = 45 degrees. N-body simulations show that the best-fitting model is stable for more than 1.5 Gyr. Combined with the results in Wang et al., we find that the bar angle and/or the pattern speed are not well constrained by Bulge Radial Velocity Assay data in our Schwarzschild models. The proper motions predicted from our model are slightly larger than those observed in four fields. In the future, more kinematic data from the ground- and space-based observations will enable us to refine our model of the Milky Way bar.
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DOI:
10.1088/0004-637x/728/2/128
发表时间:
2010-08
期刊:
The Astrophysical Journal
影响因子:
--
作者:
Alex Deibel;M. Valluri;D. Merritt
通讯作者:
Alex Deibel;M. Valluri;D. Merritt
影响因子:
4.8
作者:
J. Binney;O. Gerhard;David Spergel Dpt.Theoret.Phys.;Oxford;UK.;Astron.Inst.;Univ.Basel;Ch;P. Obs.;Usa
通讯作者:
J. Binney;O. Gerhard;David Spergel Dpt.Theoret.Phys.;Oxford;UK.;Astron.Inst.;Univ.Basel;Ch;P. Obs.;Usa
DOI:
10.1111/j.1365-2966.2004.07457.x
发表时间:
2003-05
影响因子:
4.8
作者:
Takahiro Sumi;X. Wu;A. Udalski;M. Szymański;M. Kubiak;G. Pietrzyński;G. Pietrzyński;I. Soszyński;P. Wozniak;K. Żebruń;O. Szewczyk;Ł. Wyrzykowski
通讯作者:
Takahiro Sumi;X. Wu;A. Udalski;M. Szymański;M. Kubiak;G. Pietrzyński;G. Pietrzyński;I. Soszyński;P. Wozniak;K. Żebruń;O. Szewczyk;Ł. Wyrzykowski
DOI:
10.1086/521098
发表时间:
2006-11
期刊:
The Astrophysical Journal Letters
影响因子:
--
作者:
M. Soto;R. Rich;K. Kuijken
通讯作者:
M. Soto;R. Rich;K. Kuijken
影响因子:
4.8
作者:
HongSheng Zhao;R. Rich;D. Spergel
通讯作者:
HongSheng Zhao;R. Rich;D. Spergel