2023AJ....166..215O

Query : 2023AJ....166..215O

2023AJ....166..215O - Astron. J., 166, 215 (2023/November-0)

KIC 9028474: A Long-period Eclipsing Binary on a Highly Eccentric Orbit.

OZDARCAN O.

Abstract (from CDS):

We present a comprehensive analysis of a very long-period (124.93669 days) eclipsing binary KIC 9028474, which is composed of F9V+G1V components on a highly eccentric (e = 0.82029) orbit. Masses and radii of the primary and the secondary components are M1 = 1.18 ± 0.04 M⊙, M2 = 1.04 ± 0.03 M⊙, R1 = 1.52 ± 0.02 R⊙, and R2 = 1.11 ± 0.01 R⊙, respectively. Eclipse time variations show the presence of apsidal motion, which in turn shows the existence of a third body in a relatively close orbit. Simultaneous analysis of infrared spectra and space photometry reveals that the primary component is about to leave the main sequence, indicating an age of 5.2 ± 0.8 Gyr for the system. Theoretical evaluation of the observed eccentricity indicates that the components of KIC 9028474 will end their whole life much before the orbital circularization is achieved. Given the limited resolution of the spectra, we can only place an upper limit on the rotational velocities of each star, thus a theoretical evaluation of the synchronization of the components.

Abstract Copyright: © 2023. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Eclipsing binary stars - Detached binary stars - Fundamental parameters of stars - Eccentricity

Simbad objects: 1

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Number of rows : 1
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 KOI-3510 EB* 19 36 38.2880635296 +45 22 33.331790100           ~ 25 0

Query : 2023AJ....166..215O

Basic data :
KOI-3510 -- Eclipsing Binary
Other object types: otypes_help 		* (2022AJ,AP,...), EB* (2013ApJ), NIR (2MASS)
ICRS coord. (ep=J2000) : 		19 36 38.2880635296 +45 22 33.331790100 (Optical) [ 0.0079 0.0091 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		19 35 06.2265613569 +45 15 46.653876561 [ 0.0079 0.0091 90 ]
Gal coord. (ep=J2000) : 		078.2364102550147 +11.6560881774450 [ 0.0079 0.0091 90 ]
Proper motions mas/yr : 		2.490 -8.218 [0.011 0.012 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -20.386900 [0.01273] / z(spectroscopic) -0.000068 [0.000000] / cz -20.39 [0.01]
   (NIR) A 2020AJ....160..120J
Parallaxes (mas): 		1.5908 [0.0093] A 2020yCat.1350....0G
Fluxes (4) :
G 12.281655 [0.002760] C 2020yCat.1350....0G
J 11.193 [0.020] C 2003yCat.2246....0C
H 10.908 [0.017] C 2003yCat.2246....0C
K 10.870 [0.014] C 2003yCat.2246....0C
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Identifiers (7) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

2MASS J19363828+4522333 KIC 9028474 TIC 270856764 Gaia DR2 2127962476185944576
AP J19363828+4522333 KOI-3510 Gaia DR3 2127962476185944576

References (25 between 1850 and 2026) (Total 25)
Simbad bibliographic survey began in 1850 for stars (at least bright stars) and in 1983 for all other objects (outside the solar system).
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Collections of Measurements Description of Measurements

Velocities : 3    Distance : 2    Var : 1    Rot : 1    Fe/H : 3    Plx : 2    PM : 2   

   

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2MASS J19363828+4522333 AP J19363828+4522333 KIC 9028474 Gaia DR3 2127962476185944576 Gaia DR2 2127962476185944576

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