The stellar system HIP 101227: is it a binary, a triple or a quadruple system?

Abstract

In this paper, we present the analysis of the stellar system HIP 101227 to determine the actual number of components in the system, and their properties. We use dynamical modeling and complex spectrophotometric (involving atmospheric modeling) techniques with recent data, to determine the physical properties and orbital solution for the system, respectively, with better accuracy than past studies. Based on our analysis, we found that the system is more consistent with being a quadruple rather than a binary, or a triple system as that suggested by previous studies. The total mass of the system determined from our SED analysis is 3.42 $\pm$ 0.20 $M_{\odot }$, which are distributed almost equally between the four stars. The stars are found to be zero-age main sequence stars; i.e., at the last stage of pre-main sequence,with age less than 200 Myr and spectral types K0. All four stars have very similar physical characteristics, suggesting that fragmentation process is the most likely theory for the formation and evolution of the system.

arXiv comment9 pages, 8 figures and 9 tables

References in corpus (18)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• Validation of the new Hipparcos reduction
• 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
• Pulkovo Compilation of Radial Velocities for 35495 Hipparcos Stars in a Common System
• A Comprehensive Study of the Kepler Triples via Eclipse Timing
• 3D maps of interstellar dust in the Local Arm: using $Gaia$, 2MASS and APOGEE-DR14
• The Updated Multiple Star Catalog
• Photodynamical analysis of the triply eclipsing hierarchical triple system EPIC 249432662
• A Spectroscopic Survey of the Youngest Field Stars in the Solar Neighborhood. II. The optically faint sample
• Physical Parameters of the Visually Close Binary Systems Hip70973 and Hip72479
• Orbits of four young triple-lined multiple systems
• Physical and Geometrical Parameters of CVBS XII: Fin 350 (Hip 64838)
• Speckle Interferometry of Red Dwarf Stars
• Physical and Dynamical Parameters of the Triple Stellar System: HIP 109951
• Physical and Geometrical Parameters of CVBS XI: COU1511 (HIP12552)
• Physical and Geometrical Parameters of CVBS X: The Spectroscopic Binary Gliese 762.1
• Physical and Geometrical Parameters of VCBS XIII: HIP 105947
• Orbital and physical parameters of the close binary system: GJ 9830 (HIP 116259)