SPECKLE INTERFEROMETRY AT SOAR IN 2010 AND 2011: MEASURES, ORBITS, AND RECTILINEAR FITS

Journal Article · Wed Feb 15 00:00:00 EST 2012 · Astronomical Journal (New York, N.Y. Online)

DOI:https://doi.org/10.1088/0004-6256/143/2/42· OSTI ID:22034714

Hartkopf, William I; Mason, Brian D ^[1]; Tokovinin, Andrei ^[2]

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1. U.S. Naval Observatory, 3450 Massachusetts Ave., Washington, DC (United States)
2. Cerro Tololo Inter-American Observatory, Casilla 603, La Serena (Chile)

We report on the results of speckle observations at the 4.1 m SOAR telescope in 2010 and 2011. A total of 639 objects were observed. We give 562 measurements of 418 resolved binaries, including 21 pairs resolved for the first time, and upper detection limits for 221 unresolved stars. New orbital elements have been determined for 42 physical pairs, of which 22 are first-time calculations; the rest are corrections, sometimes substantial. Linear elements are calculated for nine apparently optical doubles. We comment on new pairs, new orbital solutions, and other remarkable objects.

• OSTI ID: 22034714
• Journal Information: Astronomical Journal (New York, N.Y. Online), Vol. 143, Issue 2; Other Information: Country of input: International Atomic Energy Agency (IAEA); ISSN 1538-3881
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ASTRONOMY
ASTROPHYSICS
BINARY STARS
CORRECTIONS
INTERFEROMETRY
ORBITS
SENSITIVITY
TELESCOPES