Results 11 to 20 of about 2,942 (136)

Investigation Limb darkening for short period AB Andromeda eclipsing binary star

open access: yesPolytechnic 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

Star-crossed Lovers DI Tau A and B: Orbit Characterization and Physical Properties Determination

open access: yesThe Astrophysical Journal, 2023
The stellar companion to the weak-line T Tauri star DI Tau A was first discovered by the lunar occultation technique in 1989 and was subsequently confirmed by a speckle imaging observation in 1991.
Shih-Yun Tang   +7 more
doaj   +1 more source

Visual Orbits and Alignments of Planet-hosting Binary Systems

open access: yesThe 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   +9 more
doaj   +1 more source

JWST Observations of the Enigmatic Y-Dwarf WISE 1828+2650. I. Limits to a Binary Companion

open access: yesThe Astrophysical Journal, 2023
The Y-dwarf WISE 1828+2650 is one of the coldest known brown dwarfs with an effective temperature of ∼300 K. Located at a distance of just 10 pc, previous model-based estimates suggest WISE1828+2650 has a mass of ∼5–10 M _J , making it a valuable ...
Matthew De Furio   +22 more
doaj   +1 more source

The Census of Exoplanets in Visual Binaries: Population Trends from a Volume-Limited Gaia DR2 and Literature Search

open access: yesFrontiers in Astronomy and Space Sciences, 2021
We present results from an extensive search in the literature and Gaia DR2 for visual co-moving binary companions to stars hosting exoplanets and brown dwarfs within 200 pc.
Clémence Fontanive   +1 more
doaj   +1 more source

Binary star astrometry with milli and sub-milli arcsecond precision [PDF]

open access: yesSerbian Astronomical Journal, 2014
The past several decades have seen accelerating progress in improving binary stars fundamental parameters determinations, as new observational techniques have produced visual orbits of many spectroscopic binaries with a milli arcsecond precision.
Jankov S., Cvetković Z., Pavlović R.
doaj   +1 more source

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

open access: yesOpen 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.   +2 more
doaj   +1 more source

Statistical Analysis of a Comprehensive List of Visual Binaries

open access: yesOpen Astronomy, 2015
Visual binary stars are the most abundant class of observed binaries. The most comprehensive list of data on visual binaries compiled recently by cross-matching the largest catalogues of visual binaries allowed a statistical investigation of ...
Kovaleva D.   +4 more
doaj   +1 more source

On the Component Masses of Visual Binaries [PDF]

open access: yesSerbian Astronomical Journal, 2010
In the Sixth Catalog of Orbits of Visual Binary Stars we found those belonging to the Main Sequence to form a sample containing 432 visual binaries. Their total masses were obtained dynamically, i.e.
Ninkovic, S., Cvetkovic, Z.
doaj   +3 more sources

The New Version of the Binary Star Database (BDB)

open access: yesOpen 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.   +4 more
doaj   +1 more source

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