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
The mass ratio distribution of B-type visual binaries in the Sco OB2 association [PDF]
, 2001 The sample of 115 B-type stars in Sco OB2 association is examined for existence of visual companions with ADONIS near-infrared adaptive optics system and coronograph in J and K bands. Practically all components in the separation range 0.3"-6" (45-900 A.U.
A. Tokovinin +34 more
core +2 more sources
Star-crossed Lovers DI Tau A and B: Orbit Characterization and Physical Properties Determination
The 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
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 +9 more
doaj +1 more source
Searching for faint companions with VLTI/PIONIER. II. 92 main sequence stars from the Exozodi survey [PDF]
, 2014 The Exozodi survey aims to determine the occurrence rate of bright exozodiacal discs around nearby main sequence stars using infrared interferometry. Although the Exozodi survey targets have been carefully selected to avoid the presence of binary stars ...
Absil, Olivier +8 more
core +4 more sources
A Search for wide visual companions of exoplanet host stars - The Calar Alto Survey [PDF]
, 2006 We have carried out a search for co-moving stellar and substellar companions around 18 exoplanet host stars with the infrared camera MAGIC at the 2.2m Calar Alto telescope, by comparing our images with images from the all sky surveys 2MASS, POSS I and II.
Broeg, C. +5 more
core +1 more source
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. +2 more
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JWST Observations of the Enigmatic Y-Dwarf WISE 1828+2650. I. Limits to a Binary Companion
The 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
Binary star astrometry with milli and sub-milli arcsecond precision [PDF]
Serbian 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
Accurate M Dwarf Metallicities from Spectral Synthesis: A Critical Test of Model Atmospheres [PDF]
, 2006 We describe a method for accurately determining M dwarf metallicities with spectral synthesis based on abundance analyses of visual binary stars. We obtained high resolution, high signal-to-noise spectra of each component of five visual binary pairs at ...
Bean, Jacob L. +4 more
core +2 more sources