The distance to the Orion Nebula

被引：657
作者：
Menten, K. M.
Reid, M. J.
Forbrich, J.
Brunthaler, A.
机构：
[1] Max Planck Inst Radioastron, D-53121 Bonn, Germany
[2] Harvard Smithsonian Ctr Astrophys, Cambridge, MA 02138 USA
来源：
ASTRONOMY & ASTROPHYSICS | 2007年 / 474卷 / 02期
关键词：
stars : pre-main sequence; radio continuum : stars; techniques : interferometic; astrometry;
D O I：
10.1051/0004-6361:20078247
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We have used the Very Long Baseline Array to measure the trigonometric parallax of several member stars of the Orion Nebula Cluster showing non-thermal radio emission. We have determined the distance to the cluster to be 414 +/- 7 pc. Our distance determination allows for an improved calibration of luminosities and ages of young stars. We have also measured the proper motions of four cluster stars which, when accurate radial velocities are measured, will put strong constraints on the origin of the cluster.
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收藏
页码：515 / 520
页数：6
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