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Accepted manuscript

Orbit determination of visual binary systems observed with CST telescope in 2010-2013

Published online by Cambridge University Press:  06 January 2025

F. M. Rica Open the ORCID record for F. M. Rica [Opens in a new window] ,
R. Barrena Open the ORCID record for R. Barrena [Opens in a new window] ,
J. A. Henríquez ,
G. Vázquez ,
C. Vázquez ,
D. Hernández  and
J. L. del Rosario
F. M. Rica*
Affiliation:
Federación Extremeña de Astronomía, C/José Ruíz Azorín, 14, 4o D, Mérida 06800, Spain
R. Barrena
Affiliation:
Instituto de Astrofísica de Canarias, C/ Vía Láctea s/n, La Laguna 38205, Spain Universidad de La Laguna, Facultad de Ciencias, Departamento de Astrofísica, Avenida Astrofísico Francisco Sánchez, s/n, 38206, La Laguna, Tenerife, Spain
J. A. Henríquez
Affiliation:
Grupo de Observadores Astronómicos de Tenerife (GOAT), Spain Astronomical Observatory MPC J-48, C/San Pancracio, no 26, Urb. Mackay, San Cristóbal de la Laguna E-38205, Spain
G. Vázquez
Affiliation:
Astronomical Observatory MPC J-48, C/San Pancracio, no 26, Urb. Mackay, San Cristóbal de la Laguna E-38205, Spain Agupación Astronómica de Tenerife, post office box 10644-38080, Tenerife, Spain
C. Vázquez
Affiliation:
Astronomical Observatory MPC J-48, C/San Pancracio, no 26, Urb. Mackay, San Cristóbal de la Laguna E-38205, Spain Agupación Astronómica de Tenerife, post office box 10644-38080, Tenerife, Spain
D. Hernández
Affiliation:
Sociedad para el Estudio y el Conocimiento de la Astronomía (SECAT), Tenerife, Spain
J. L. del Rosario
Affiliation:
Sociedad para el Estudio y el Conocimiento de la Astronomía (SECAT), Tenerife, Spain
*
Author for correspondence: F. M. Rica, Email: frica0@gmail.com.
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Abstract

We present new orbital solutions for 15 binaries, which were astrometrically measured by our team during 2010-2013, using the FastCam “lucky-imaging” camera installed at the 1.5-m Carlos Sánchez Telescope (CST) at the Observatorio del Teide, Tenerife (Spain). We present first orbital solutions for BU 1292, STF 147, HDS 1898 and STT 325 and revise orbital solutions for AG 14, D 5 AB, A 1581, HO 525 AB,WOR 19, A 1999, HU 572, HU 742, COU 227, BU 696 AB, and A 893. We apply two orbital calculation techniques, the “three-dimensional grid search method”, first described by Hartkopf, McAlister, & Franz (1989), and the Docobo’s analytical method (Docobo 1985). We use our tool “Binary Deblending”, based on deblending the entire observed multiband photometry into fundamental and photometric parameters for each stellar component based on PARSEC isochrones. We also obatain the total mass for all systems. Our findings include the identification of a binary system consisting of two M-type dwarfs (WOR 19), a binary of evolved components (twin F6IV-V stars) in BU 1292, accompanied by a newly discovered wide (10.5") and faint companion with G = 17.05 mag. Additionally, we explore the X-ray emission system STF 147 and a very young quadruple system, WDS 04573+5345. This comprehensive analysis significantly contributes to our understanding of the formation and evolution of stellar systems.

Keywords

visual binary starsvisual binary starsorbit determinationfundamental parameters of stars
Type
Research Article
Information
Publications of the Astronomical Society of Australia , Accepted manuscript , pp. 1 - 18
Copyright
© The Author(s), 2025. Published by Cambridge University Press on behalf of Astronomical Society of Australia

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