Observations of binary stars with the differential speckle survey instrument. II. Hipparcos stars observed in 2010 January and June

Horch, Elliott P. and Gomez, Shamilia C. and Sherry, William H. and Howell, Steve B. and Ciardi, David R. and Anderson, Lisa M. and Van Altena, William F. (2011) Observations of binary stars with the differential speckle survey instrument. II. Hipparcos stars observed in 2010 January and June. The Astronomical Journal, 141 (2). pp. 45-57. ISSN 0004-6256

[img]
Preview
Text (Published Version)
Ciardi_2011_PV.pdf

Download (1678Kb) | Preview

Abstract

The results of 497 speckle observations of Hipparcos stars and selected other targets are presented. Of these, 367 were resolved into components and 130 were unresolved. The data were obtained using the Differential Speckle Survey Instrument at the WIYN 3.5 m Telescope. (The WIYN Observatory is a joint facility of the University of Wisconsin-Madison, Indiana University, YaleUniversity, and theNational Optical AstronomyObservatories.) Since the first paper in this series, the instrument has been upgraded so that it now uses two electron-multiplying CCD cameras. The measurement precision obtained when comparing to ephemeris positions of binaries with very well known orbits is approximately 1-2 mas in separation and better than 0.̊ 6 in position angle. Differential photometry is found to be in very good agreement with Hipparcos measures in cases where the comparison is most relevant. We derive preliminary orbits for two systems.


Statistics for USQ ePrint 32176
Statistics for this ePrint Item
Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Access to published version in accordance with the copyright policy of the publisher.
Faculty / Department / School: No Faculty
Date Deposited: 12 Jun 2017 01:06
Last Modified: 30 Oct 2017 01:33
Uncontrolled Keywords: Binaries: Visual; High angular resolution; Interferometric Techniques: Photometric Techniques
Fields of Research : 02 Physical Sciences > 0201 Astronomical and Space Sciences > 020110 Stellar Astronomy and Planetary Systems
02 Physical Sciences > 0201 Astronomical and Space Sciences > 020102 Astronomical and Space Instrumentation
Socio-Economic Objective: E Expanding Knowledge > 97 Expanding Knowledge > 970102 Expanding Knowledge in the Physical Sciences
Identification Number or DOI: 10.1088/0004-6256/141/2/45
URI: http://eprints.usq.edu.au/id/eprint/32176

Actions (login required)

View Item Archive Repository Staff Only