V907 Sco Switched to the Eclipsing Mode Again
The Astronomical Journal, 2023 V907 Scorpii is a unique triple system in which the inner binary component has been reported to have switched on and off eclipses several times in modern history.
Petr Zasche +3 more
doaj +1 more source
Born to Be Wide: The Distribution of Wide Binaries in the Field and Soft Binaries in Clusters
The Astrophysical Journal, 2023 Most stars, binaries, and higher-multiplicity systems are thought to form in stellar clusters and associations that later dissociate. Very wide binaries can be easily disrupted in clusters due to dynamical evaporation (soft binaries) and/or tidal ...
Mor Rozner, Hagai B. Perets
doaj +1 more source
CCD measurements of double and multiple stars at NAO Rozhen. IV [PDF]
Serbian Astronomical Journal, 2010 Using the 2 m telescope of the Bulgarian National Astronomical Observatory at Rozhen observations of 30 double or multiple stars were carried out during two half nights on July 20 and 21, 2009.
Cvetković Zorica +2 more
doaj +3 more sources
A Catalog of Nearby Accelerating Star Candidates in Gaia DR3
The Astronomical Journal, 2023 We describe a new catalog of accelerating star candidates with Gaia G ≤ 17.5 mag and distances d ≤ 100 pc. Designated as the Gaia Nearby Accelerating Star Catalog (GNASC), it contains 29,684 members identified using a supervised machine-learning ...
Marc L. Whiting +3 more
doaj +1 more source
ORBITS OF SUBSYSTEMS IN FOUR HIERARCHICAL MULTIPLE STARS [PDF]
, 2016 Seven spectroscopic orbits in nearby solar-type multiple stars are presented. The primary of the chromospherically active star HIP 9642 is a 4.8 day double-lined pair; the outer 420 year visual orbit is updated, but remains poorly constrained.
A. Tokovinin
semanticscholar +1 more source
CCD measurements of double and multiple stars at NAO Rozhen. III [PDF]
Serbian Astronomical Journal, 2007 Using the 2-m telescope of the Bulgarian National Astronomical Observatory at Rozhen, observations of 55 multiple stars were carried out during one night, December 16/17. 2006.
Cvetković Z. +4 more
doaj +1 more source
Magnetic cycles at different ages of stars [PDF]
, 2016 We study the different patterns of interannual magnetic variability in stars on or near the lower main sequence, approximately solar-type (G-K dwarf) stars in time series of 36 years from the Mount Wilson Observatory Ca\,{\sc ii}\,H\&K survey.
Baliunas, S. +6 more
core +2 more sources
Atmospheric and Fundamental Parameters of the Individual Components of Multiple Stellar Systems
The Astronomical Journal, 2023 We present detailed analyses of eight triple stellar systems (lying between 20 and 155 pc) and nine quadruple stellar systems (lying between 20 and 250 pc) with different configurations. Most of these systems are hierarchical.
Enas M. Abu-Alrob +2 more
doaj +1 more source
A Catalog of Wide Binary and Multiple Systems of Bright Stars from Gaia-DR2 and the Virtual Observatory [PDF]
Astronomical Journal, 2019 Binary and multiple stars have long provided an effective empirical method of testing stellar formation and evolution theories. In particular, the existence of wide binary systems (separations >20,000 au) is particularly challenging to binary formation ...
F. Jim'enez-Esteban +2 more
semanticscholar +1 more source
The multiplicity of massive stars in the Orion Nebula cluster as seen with long-baseline interferometry [PDF]
, 2013 The characterization of multiple stellar systems is an important ingredient for testing current star formation models. Stars are more often found in multiple systems, the more massive they are.
Grellmann, Rebekka +5 more
core +1 more source