Ten Years of Speckle Interferometry at SOAR

被引：165

作者：

Tokovinin, Andrei ^{[1
]}

机构：

[1] Cerro Tololo Interamer Observ, Casilla 603, La Serena, Chile

来源：

PUBLICATIONS OF THE ASTRONOMICAL SOCIETY OF THE PACIFIC | 2018年 / 130卷 / 985期

关键词：

instrumentation: high angular resolution; techniques: high angular resolution; (stars:) binaries: visual; STAR CD-ROM; BINARY STARS; ORBITS; TELESCOPES; RESOLUTION; CATALOG;

D O I：

10.1088/1538-3873/aaa7d9

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Since 2007, close binary and multiple stars are observed by speckle interferometry at the 4.1 m Southern Astrophysical Research (SOAR) telescope. The HRCam instrument, observing strategy and planning, data processing and calibration methods, developed and improved during ten years, are presented here in a concise way. Thousands of binary stars were measured with diffraction-limited resolution (29 mas at 540 nm wavelength) and a high accuracy reaching 1 mas; 200 new pairs or subsystems were discovered. To date, HRCam has performed over 11,000 observations with a high efficiency (up to 300 stars per night). An overview of the main results delivered by this instrument is given.

引用

页数：14

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