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Speckle Interferometry at the U.S. Naval Observatory. XXIII
Brian D. Mason, William I. Hartkopf, Sean E. Urban +1
The results of 3,989 intensified CCD observations of double stars, made with the 26-inch refractor of the U.S. Naval Observatory, are presented. Each observation of a system repres…
Speckle interferometry at SOAR in 2016 and 2017
Andrei Tokovinin, Brian D. Mason, William I. Hartkopf +2
The results of speckle interferometric observations at the 4.1 m SOAR telescope in 2016 and 2017 are given, totaling 2483 measurements of 1570 resolved pairs and 609 non-resolution…
Distances of Dwarf Carbon Stars
Hugh C. Harris, Conard C. Dahn, John P. Subasavage +8
Parallaxes are presented for a sample of 20 nearby dwarf carbon stars. The inferred luminosities cover almost two orders of magnitude. Their absolute magnitudes and tangential velo…
Speckle Interferometry of Red Dwarf Stars
Brian D. Mason, William I. Hartkopf, Korie N. Miles +3
We report high resolution optical speckle observations of 336 M dwarfs which result in 113 measurements of relative position of 80 systems and 256 other stars with no indications o…