Results 11 to 20 of about 3,825,515 (243)

Wide binary stars in the Galactic field : a statistical approach [PDF]

open access: yes, 2010
This thesis focuses on the statistical properties of wide binary (WB) star systems in the Galactic field. With projected separations larger than 200 AU and, consequently, having very low binding energies, WB are sensitive probes of the Galactic ...
Longhitano, Marco
core   +1 more source

New spectroscopic binary companions of giant stars and updated metallicity distribution for binary systems [PDF]

open access: yes, 2016
We report the discovery of 24 spectroscopic binary companions to giant stars. We fully constrain the orbital solution for 6 of these systems. We cannot unambiguously derive the orbital elements for the remaining stars because the phase coverage is ...
Vanzi, L.   +49 more
core   +1 more source

Widely separated binary systems of very low-mass stars

open access: yes, 2005
In this paper we review some recent detections of wide binary brown dwarf systems and discuss them in the context of the multiplicity properties of very low-mass stars and brown ...
Phan-Bao, N., Reylé, C., Martín, E. L.
core   +2 more sources

Binary central stars of planetary nebulae

open access: yes, 2007
This paper reviews our knowledge on binary central stars of planetary nebulae and presents some personal opinions regarding their evolution. Three types of interactions are distinguished: type I, where the binary companion induces the mass loss; type II,
Zijlstra, Albert A.; id_orcid
core   +6 more sources

The origin of very wide binary stars

open access: yes, 2011
A large population of fragile, wide (> 1000 AU) binary systems exists in the Galactic field and halo. These wide binary stars cannot be primordial because of the high stellar density in star forming regions, while formation by capture in the Galactic ...
Goodwin, S.P.   +5 more
core   +3 more sources

The magnetosphere of the close accreting PMS binary V4046 Sgr [PDF]

open access: yes, 2014
SGG acknowledges support from the Science & Technology Facilities Council (STFC) via an Ernest Rutherford Fellowship [ST/J003255/1]. GAW is supported by a Discovery Grant from the Natural Science & Engineering Research Council of Canada (NSERC).V4046 ...
Damiani, F.   +78 more
core   +1 more source

Galactic perturbations on the population of wide binary stars with exoplanets [PDF]

open access: yes, 2017
Aims. The aim of this work is to study the dynamical effects of the Galaxy on binary star systems with physical and orbital characteristics similar to those of the population of known wide binary stars with exoplanets.
J. A. Correa-Otto, R. A. Gil-Hutton
core   +2 more sources

Orbital Elements of visual binary stars with very short arcs: With application to double stars from the 1829 southern double star catalog of James Dunlop [PDF]

open access: yes, 2022
Binary double stars are those whose binding energies are less than zero. Obtaining binary star orbits from short arcs has been a long-standing problem in astrophysics.
Roderick R. Letchford   +5 more
core   +1 more source

PSF-based Analysis for Detecting Unresolved Wide Binaries

open access: yesThe Astrophysical Journal Supplement Series, 2023
Wide binaries play a crucial role in analyzing the birth environment of stars and the dynamical evolution of clusters. When wide binaries are located at greater distances, their companions may overlap in the observed images, becoming indistinguishable ...
You Wu   +7 more
doaj   +1 more source

Space-Based Photometry of Binary Stars: From Voyager to TESS

open access: yesUniverse, 2021
Binary stars are crucial laboratories for stellar physics, so have been photometric targets for space missions beginning with the very first orbiting telescope (OAO-2) launched in 1968.
John Southworth
doaj   +1 more source

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