FROM BINARIES TO MULTIPLES. I. DATA ON F AND G DWARFS WITHIN 67 pc OF THE SUN
By A. Tokovinin. 2014
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Data on the multiplicity of F- and G-type dwarf stars within 67 pc of the Sun are presented. This distance-limited sample based on the Hipparcos catalog contains 4847 primary stars (targets) with 0.5 < V − IC < 0.8 and is >90% complete. There are 2196 known stellar pairs; some of them belong to 361 hierarchical systems from triples to quintuples. Models of companion detection by radial velocity, astrometric acceleration, direct resolution, and common proper motion are developed. They serve to compute completeness for each target, using the information on its coverage collected here. About 80% of companions to the primary stars are detected, but the census of subsystems in the secondary components is only about 30%. Masses of binary components are estimated from their absolute magnitudes or by other methods; the periods of wide pairs are evaluated from their projected separations. A third of binaries with periods shorter than ∼100 yr are spectroscopic and/or astrometric pairs with yet unknown periods and mass ratios. These data are used in the accompanying Paper II to derive unbiased statistics of hierarchical multiple systems.
Subfields: Astronomy and Astrophysics, Instrumentation
View Paper: https://www.semanticscholar.org/paper/190d8a1787e56f56f9de2f5773526d8b28588b26
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Citations in the corpus
- The Eccentric Kozai-Lidov Effect and Its Applications (2016, background): “…astrophysical settings covering a large range of mass and physical scales, such as triple stars (e.g., Tokovinin 1997; Eggleton et al. 2007; Tokovinin 2014b,a), and accreting compact binaries with a companion (such as companions to X-ray binaries e.g., Grindlay et al. 1988; Prodan and…”
- Multiplicity among Solar-type Stars (2017, methodology): “Otherwise, our analysis proceeds in essentially the same manner as described above for HD 1273, except that we can directly refer to the visual magnitudes VA=6.48 and VB=9.87 from Tokovinin (2014a) based on speckle interferometric measurements.”
- FROM BINARIES TO MULTIPLES. II. HIERARCHICAL MULTIPLICITY OF F AND G DWARFS (2014, methodology): “Information on triples and higher-order systems collected in the Multiple Star Catalog, MSC (Tokovinin 1997) is heavily distorted by observational selection and not suitable for unbiased statistical study.”
- Speckle Interferometry at SOAR in 2016 and 2017 (2014, background): “Statistical relation of these estimates to true periods is discussed by Tokovinin (2014).”
- Binary Companions of Evolved Stars in APOGEE DR14: Search Method and Catalog of ∼5000 Companions (2018, background): “Most of what is known about stellar companions comes from studies of nearby main-sequence (MS) stars (e.g., Duquennoy et al. 1991; Raghavan et al. 2010; Tokovinin 2014; Moe & Di Stefano 2017).”
- A comprehensive study of the Kepler triples via eclipse timing (2015, background): “All the other tertiaries with periods less than one year had been discovered spectroscopically in accord with the fact that spectroscopic detection is much more effective for short period outer orbits (see, e.g. Mayer 1990; Tokovinin 2014a).”
- OBSERVATIONS OF HIERARCHICAL SOLAR-TYPE MULTIPLE STAR SYSTEMS (2015, background): “The emerging statistics (Law et al. 2010; Tokovinin 2014b) indicates that a third to a half of visual binaries harbor subsystem(s).”
- Searching for faint companions with VLTI/PIONIER - II. 92 main sequence stars from the Exozodi survey (2014, background): “A lot of papers were published regarding the multiplicity of solar-type stars (F-G stars), including e.g. censuses of binaries within 25 pc (Raghavan et al. 2010) and within 67 pc (Tokovinin 2014a,b).”