Navy Prototype Optical Interferometer observations of the double stars Mizar A and Matar

被引：96

作者：

Hummel, CA

Mozurkewich, D

Armstrong, JT

Hajian, AR

Elias, NM

Hutter, DJ

机构：

[1] USN Observ, Astrometry Dept, Washington, DC 20392 USA

[2] USN, Res Lab, Remote Sensing Div, Washington, DC 20375 USA

来源：

ASTRONOMICAL JOURNAL | 1998年 / 116卷 / 05期

关键词：

binaries : spectroscopic; techniques : interferometric;

D O I：

10.1086/300602

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present a detailed analysis of two spectroscopic binaries based on new observations obtained with the Navy Prototype Optical Interferometer (NPOI). While the data calibration needs refinement, first results show the impressive potential of NPOI, both in terms of speed and precision, for imaging and modeling the orbits of spectroscopic binaries. We determine the orbital parameters of Mizar A (zeta(1) Ursae Majoris) and Matar (eta Pegasi), and derive masses and luminosities using published radial velocities and Hipparcos trigonometric parallaxes. The results on Mizar A are compared to earlier work done with the Mark III interferometer, while data from this instrument were combined with NPOI data in the Matar analysis.

引用

页码：2536 / 2548

页数：13

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