Results 11 to 20 of about 736 (237)

Visual binaries among high-mass stars [PDF]

Astronomy & Astrophysics, 2001
Accepted for publication in A&A, LaTeX2e, 15 pages, 5 embedded ...
Duchene, G., Simon, T., Eisloffel, J., Bouvier, J.   +3 more
openaire   +3 more sources

Visual Orbits and Alignments of Planet-hosting Binary Systems

The Astronomical Journal, 2023
Roughly half of Solar-type planet hosts have stellar companions, so understanding how these binary companions affect the formation and evolution of planets is an important component to understanding planetary systems overall.
Kathryn V. Lester, Steve B. Howell, Rachel A. Matson, Elise Furlan, Crystal L. Gnilka, Colin Littlefield, David R. Ciardi, Mark E. Everett, Sergio B. Fajardo-Acosta, Catherine A. Clark   +9 more
doaj   +2 more sources

Orbits of Binary Stars: from Visual Measures to Speckle Interferometry

The Astronomical Journal
Knowledge of the orbits of visual binary stars has always been one of the fundamentals of astronomy. Based historically on the visual measures, nowadays the orbits rely more (or exclusively) on the accurate speckle data.
Andrei Tokovinin
doaj   +3 more sources

Visual Binaries: Cross-Matching and Compiling of a Comprehensive List

Open Astronomy, 2015
Visual binary stars make up the largest set among observed types of binaries (currently more than 110 000 systems are known containing more than 230 000 components).
Isaeva A. A., Kovaleva D. A., Malkov O. Yu.   +2 more
doaj   +3 more sources

The New Version of the Binary Star Database (BDB)

Open Astronomy, 2012
The Binary star database contains data on about 100 000 stellar systems of multiplicity 2 to 22, taken from a large variety of published catalogues for all types of binary stars: visual, orbital, astrometric, interferometric, spectroscopic, photometric ...
Kaygorodov P., Debray B., Kolesnikov N., Kovaleva D., Malkov O.   +4 more
doaj   +3 more sources

Visual Orbits of Wolf–Rayet Stars. I. The Orbit of the Dust-producing Wolf–Rayet Binary WR 137 Measured with the CHARA Array

The Astrophysical Journal
Classical Wolf–Rayet (W-R) stars are the descendants of massive OB stars that have lost their hydrogen envelopes and are burning helium in their cores prior to exploding as Type Ib/c supernovae.
Noel D. Richardson, Gail H. Schaefer, Jan J. Eldridge, Rebecca Spejcher, Amanda Holdsworth, Ryan M. Lau, John D. Monnier, Anthony F. J. Moffat, Gerd Weigelt, Peredur M. Williams, Stefan Kraus, Jean-Baptiste Le Bouquin, Narsireddy Anugu, Sorabh Chhabra, Isabelle Codron, Jacob Ennis, Tyler Gardner, Mayra Gutierrez, Noura Ibrahim, Aaron Labdon, Cyprien Lanthermann, Benjamin R. Setterholm   +21 more
doaj   +3 more sources

Spectroscopic Orbits of Subsystems in Multiple Stars. X (Summary)

The Astronomical Journal, 2023
Results of a large program of spectroscopic monitoring of nearby solar-type stellar hierarchical systems using the CHIRON echelle spectrograph at the 1.5 m telescope are summarized.
Andrei Tokovinin
doaj   +1 more source

Investigation Limb darkening for short period AB Andromeda eclipsing binary star

Polytechnic Journal, 2023
This work deal with characterizing the limb darkening coefficients for the short period binary stars AD Andromeda to determine the size, luminosities and masses of the Individual stars as well as orbital size and orientation of the binary system ...
Chiman Ibrahim Hussein Mrs
doaj   +1 more source

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, Abdallah M. Hussein, Mashhoor A. Al-Wardat   +2 more
doaj   +1 more source

Central Star of NGC 3132: A Visual Binary [PDF]

Symposium - International Astronomical Union, 1978
A faint companion to HD 87892 (V=10.07, B-V=+0.09, U-B=+0.10, Sp.A2) has been discovered with the 3.6 m telescope (prime focus) of the European Southern Observatory at La Silla having the following parameters: separation ψ = 1″.65, position angle θ = 226°.3.
L. Kohoutek, S. Laustsen
openaire   +1 more source