Stellar parameters of the two binary systems: HIP 14075 and HIP 14230

Abstract

We present the stellar parameters of the individual components of the two old close binary systems HIP\,14075 and HIP\,14230 using synthetic photometric analysis. These parameters are accurately calculated based on the best match between the synthetic photometric results within three different photometric systems with the observed photometry of the entire system. From the synthetic photometry, we derive the masses and radii of HIP\,14075 as: ${\mathcal{M}}^A=0.99\pm 0.19{\mathcal{M}}_{\odot }$, $R_A=0.877\pm 0.08R_{\odot }$ for the primary and ${\mathcal{M}}^B=0.96\pm 0.15{\mathcal{M}}_{\odot }$, $R_B=0.821\pm 0.07R_{\odot }$ for the secondary, and of HIP\,14230 as: ${\mathcal{M}}^A=1.18\pm 0.22{\mathcal{M}}_{\odot }$, $R_A=1.234\pm 0.05R_{\odot }$ for the primary and ${\mathcal{M}}^B=0.84\pm 0.12{\mathcal{M}}_{\odot }$, $R_B=0.820\pm 0.05R_{\odot }$ for the secondary, both systems depend on Gaia parallaxes. Based on the positions of the components of the two systems on a theoretical Hertzsprung- Russell diagram, we find that the age of HIP 14075 is $11.5\pm 2.0$\,Gyr and of HIP 14230 is $3.5\pm 1.5$\,Gyr. Our analysis reveals that both systems are old close binary systems ($\approx >$ 4 Gyr). Finally, the positions of the components of both systems on the stellar evolutionary tracks and isochrones are discussed.

arXiv comment10 pages, 6 Figures and 4 Tables

References in corpus (12)

• Measuring Reddening with SDSS Stellar Spectra and Recalibrating SFD
• Validation of the new Hipparcos reduction
• Speckle interferometry at the Blanco and SOAR telescopes in 2008 and 2009
• Spectrophotometric Libraries, Revised Photonic Passbands and Zero-points for UBVRI, Hipparcos and Tycho Photometry
• Speckle Interferometry of Nearby Multiple Stars. IV. Measurements in 2004 and New Orbits
• Physical Parameters of the Visually Close Binary Systems Hip70973 and Hip72479
• Physical and Geometrical Parameters of CVBS XII: Fin 350 (Hip 64838)
• Complex Analysis of the Stellar Binary HD25811; A Subgiant System
• 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
• The curious case of PDS 11: a nearby, >10 Myr old, classical T Tauri binary system

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