The 24 Aqr triple system: A closer look at its unique high-eccentricity hierarchical architecture
arXiv:2512.23645 · doi:10.1016/j.asr.2023.10.044
Abstract
As its periastron passage occurred during the third quarter of 2020, system 24 Aqr is of particular significance. New visual solutions for the latest speckle interferometry observations collected by the Lowell Discovery Telescope (LTD) with its new QWSSI speckle camera are presented here. A variety of techniques were used to analyze the system, including ORBITX code for orbital solution, Al-Wardat's method for analyzing multiple stellar systems, and Edwards' method for analyzing visual and spectroscopic binaries. We derive precise masses and the complete set of its fundamental parameters for the three components, and we introduce a new orbital solution, and a new dynamical parallax, which is very close to the measured value given by Hipparcos 2007 and from that of Gaia DR2. In the next section, we discuss the possibility of a coplanar orbit. In conclusion, we demonstrate that we need a 65-m telescope to resolve the inner binary visually, although an array of telescopes could be used instead.
Published in Advances in Space Research
References in corpus (35)
- The Gaia mission
- Evolutionary tracks and isochrones for low- and intermediate-mass stars: from 0.15 to 7 M_sun, and from Z=0.0004 to 0.03
- Intrinsic Colors, Temperatures, and Bolometric Corrections of Pre-Main Sequence Stars
- The SIMBAD astronomical database
- Shrinking binary and planetary orbits by Kozai cycles with tidal friction
- Stellar, brown dwarf and multiple star properties from a radiation hydrodynamical simulation of star cluster formation
- Stellar, Brown Dwarf, and Multiple Star Properties from Hydrodynamical Simulations of Star Cluster Formation
- Secular Dynamics in Hierarchical Three-Body Systems
- From binaries to multiples II: hierarchical multiplicity of F and G dwarfs
- The Formation of Close Binary Systems by Dynamical Interactions and Orbital Decay
- KOI-126: A Triply-Eclipsing Hierarchical Triple with Two Low-Mass Stars
- From binaries to multiples I: Data on F and G dwarfs within 67 pc of the Sun
- Comparative statistics and origin of triple and quadruple stars
- Formation of close binaries by disc fragmentation and migration, and its statistical modeling
- Dynamical Formation of Close Binaries During the Pre-main-sequence Phase
- The evolution of stellar triples: The most common evolutionary pathways
- HD 181068: A Red Giant in a Triply-Eclipsing Compact Hierarchical Triple System
- The statistical properties of stars and their dependence on metallicity: the effects of opacity
- Orbit alignment in triple stars
- The Correlation Between Metallicity and Debris Disk mass
- Speckle interferometry at SOAR in 2015
- Eccentricity evolution in hierarchical triple systems with eccentric outer binaries
- Physical Parameters of the Visually Close Binary Systems Hip70973 and Hip72479
- Algebraic and machine learning approach to hierarchical triple-star stability
- Eccentricity generation in hierarchical triple systems with coplanar and initially circular orbits
- Physical and Geometrical Parameters of CVBS XII: Fin 350 (Hip 64838)
- Spectroscopic orbits of subsystems in multiple stars. III
- Orbital elements and individual component masses from joint spectroscopic and astrometric data of double-line spectroscopic binaries
- Complex Analysis of the Stellar Binary HD25811; A Subgiant System
- The dependence of the stability of hierarchical triple systems on the orbital inclination
- Physical and Dynamical Parameters of the Triple Stellar System: HIP 109951
- Comparison of Gaia and Hipparcos parallaxes of close visual binary stars and the impact on determinations of their masses
- Precise orbital elements, masses and parallax of the spectroscopic-interferometric binary HD 26441
- Physical and geometrical parameters of CVBS XIV: The two nearby systems HIP 19206 and HIP 84425
- Chasing extreme planetary architectures: I- HD196885Ab, a super-Jupiter dancing with two stars?