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Value-added catalogs of M type stars in LAMOST DR5
Jing Zhong, Jing Li, Jeffrey L. Carlin +3
In this work, we present new catalogs of M giant and M dwarf stars from the LAMOST DR5. In total, 39,796 M giants and 501,152 M dwarfs are identified from the classification pipeli…
Speckle interferometry at SOAR in 2018
Andrei Tokovinin, Brian D. Mason, Rene A. Mendez +2
The results of speckle interferometric observations at the 4.1 m Southern Astrophysical Research Telescope (SOAR) in 2018 are given, totaling 3097 measurements of 2427 resolved pai…
Visual binary stars with partially missing data: Introducing multiple imputation in astrometric analysis
Ruben M. Claveria, Rene A. Mendez, Jorge F. Silva +1
Partial measurements of relative position are a relatively common event during the observation of visual binary stars. However, these observations are typically discarded when esti…
On the origin of very massive stars around NGC 3603
V. M. Kalari, J. S. Vink, W. de Wit +2
The formation of the most massive stars in the Universe remains an unsolved problem. Are they able to form in relative isolation in a manner similar to the formation of solar-type…