# Pairing function of visual binary stars

@article{Chulkov2020PairingFO,
title={Pairing function of visual binary stars},
author={Dmitry Chulkov},
journal={arXiv: Solar and Stellar Astrophysics},
year={2020}
}
• D. Chulkov
• Published 15 November 2020
• Physics
• arXiv: Solar and Stellar Astrophysics
An all-sky sample of 1227 visual binaries based on Washington Double Star catalogue is constructed to infer the IMF, mass ratio, and projected distance distribution with a dedicated population synthesis model. Parallaxes from Gaia DR2 and Hipparcos are used to verify the distance distribution. The model is validated on the single-star Tycho-2 sample and successfully reproduces the observed magnitudes and angular separations. The projected separation distribution follows $f(s)\sim s^{-1.2}$ in…
1 Citations

## Figures and Tables from this paper

A Statistical Detection of Wide Binary Systems in the Ultrafaint Dwarf Galaxy Reticulum II
• Physics
The Astrophysical Journal
• 2022
Binary stars can inflate the observed velocity dispersion of stars in dark matter-dominated systems such as ultrafaint dwarf galaxies (UFDs). However, the population of binaries in UFDs is poorly

## References

SHOWING 1-10 OF 86 REFERENCES
The mass ratio distribution of B-type visual binaries in the Sco OB2 association
• Physics
• 2002
A sample of 115 B-type stars in the Sco OB2 association is examined for existence of visual companions in the J and K s bands, using the ADONIS near-infrared adaptive optics system and coronograph.
The Separation Distribution of Ultrawide Binaries across Galactic Populations
• Physics
The Astrophysical Journal Supplement Series
• 2019
We present an extensive sample of ultra-wide binary stars in the solar neighborhood, focusing on separations of $0.01 85$km/s) samples, presuming that these velocity cuts represent a rough ordering
Wide binaries in Tycho-Gaia: search method and the distribution of orbital separations
• Physics, Geology
• 2017
We mine the Tycho-{\it Gaia} astrometric solution (TGAS) catalog for wide stellar binaries by matching positions, proper motions, and astrometric parallaxes. We separate genuine binaries from
WIDE COMPANIONS TO HIPPARCOS STARS WITHIN 67 PC OF THE SUN
• Physics, Geology
• 2012
A catalog of common-proper-motion (CPM) companions to stars within 67 pc of the Sun is constructed based on the SUPERBLINK proper-motion survey. It contains 1392 CPM pairs with angular separations
New Distant Companions to Known Nearby Stars. II. Faint Companions of Hipparcos Stars and the Frequency of Wide Binary Systems
• Physics
• 2007
We perform a search for faint, common proper motion companions of Hipparcos stars using the recently published Lepine-Shara Proper Motion-North catalog of stars with proper motion μ > 0.15'' yr-1.
A SURVEY OF STELLAR FAMILIES: MULTIPLICITY OF SOLAR-TYPE STARS
• Physics, Geology
• 2009
We present the results of a comprehensive assessment of companions to solar-type stars. A sample of 454 stars, including the Sun, was selected from the Hipparcos catalog with {pi}>40 mas, {sigma}{sub
Exploring the consequences of pairing algorithms for binary stars
• Physics
• 2009
Knowledge of the binary population in stellar groupings provides important information about the outcome of the star forming process in different environments. Binarity is also a key ingredient in
Double stars with wide separations in the AGK3 - II. The wide binaries and the multiple systems*
• Physics
• 2017
A large observation programme was carried out to measure the radial velocities of the components of a selection of common proper motion (CPM) stars, in order to select the physical binaries. Eighty
Wide binaries are rare in open clusters
The population statistics of binary stars are an important output of star formation models. However populations of wide binaries evolve over time due to interactions within a system's birth
The Palomar/Keck Adaptive Optics Survey of Young Solar Analogs: Evidence for a Universal Companion Mass Function
• Physics, Geology
• 2009
We present results from an adaptive optics survey for substellar and stellar companions to Sun-like stars. The survey targeted 266 F5-K5 stars in the 3 Myr-3 Gyr age range with distances of 10-190