2019RAA....19...94Z

Query : 2019RAA....19...94Z

2019RAA....19...94Z - Research in Astron. and astroph., 19, 94-94 (2019/July-0)

Photometric investigation of the eclipsing binary TX Herculis observed by LUT.

ZHU L.-Y., TIAN X.-M., ZHOU X., LI L.-J. and WANG Z.-H.

Abstract (from CDS):

The lander of China's Chang'E-3 spacecraft is equipped with a 15-cm telescope that is very useful for monitoring celestial objects in the ultraviolet (UV) band (245-340 nm). The Lunar-based Ultraviolet Telescope (LUT) is the first long-term lunar-based astronomical observatory, that can make uninterrupted observations of a target from the Moon. Here we present the continuous complete UV light curve of the eclipsing binary TX Herculis (TX Her). The analysis of the light curve suggests that TX Her is a detached binary. The dip in the light curve was explained by the emergence of a stellar dark spot on the less massive F0 type component. The cyclic change of arrival eclipse times for the system reveals that it contains an additional stellar companion with a minimal mass of 0.35 M☉ and a period of 48.92 yr, which is supported by the detected light contribution of the third body from light curve analysis. This third body may play an important role in the formation of the present short-period system TX Her.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries : close - stars: binaries : eclipsing - stars: individuals: (TX Herculis) - stars: multiple system - stars: activity

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 V* TX Her SB* 17 18 36.4457299128 +41 53 17.103632424   8.38 8.12     kA5mA8/F0 187 0

Query : 2019RAA....19...94Z

Basic data :
V* TX Her -- Spectroscopic Binary
Other object types: otypes_help 		* (2022AJ,HD,...), SB* (2022yCat,SBC7,...), EB* (2014A&A), V* (AN,V*), UV (TD1), NIR (2MASS)
ICRS coord. (ep=J2000) : 		17 18 36.4457299128 +41 53 17.103632424 (Optical) [ 0.0144 0.0159 90 ] A 2020yCat.1350....0G
FK4 coord. (ep=B1950 eq=1950) : 		17 17 01.6637014252 +41 56 20.625514196 [ 0.0144 0.0159 90 ]
Gal coord. (ep=J2000) : 		066.8714877318204 +34.4396757903597 [ 0.0144 0.0159 90 ]
Proper motions mas/yr : 		-8.613 -3.614 [0.019 0.020 90] A 2020yCat.1350....0G
Radial velocity / Redshift / cz : 		V(km/s) -14.236200 [0.027663] / z(spectroscopic) -0.000047 [0.000000] / cz -14.24 [0.03]
   (NIR) A 2020AJ....160..120J
Parallaxes (mas): 		5.8889 [0.0165] A 2020yCat.1350....0G
Spectral type: 		kA5mA8/F0 D 1970ApJ...162..925P
Fluxes (6) :
B 8.38 [~] E ~
V 8.12 [~] E ~
G 8.051726 [0.002778] C 2020yCat.1350....0G
J 7.535 [0.023] C 2003yCat.2246....0C
H 7.486 [0.020] C 2003yCat.2246....0C
K 7.391 [0.023] C 2003yCat.2246....0C
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Identifiers (27) :
An access of full data is available using the icon Vizier near the identifier of the catalogue

HD 156965 GEN# +1.00156965 SAO 46626 uvby98 100156965
AG+41 1464 GSC 03081-01297 SBC7 618 V* TX Her
AGKR 15434 HIC 84670 SBC9 959 WEB 14298
AN 91.1910 HIP 84670 SV* HV 3277 Gaia DR2 1348044175263408384
AP J17183642+4153170 2MASS J17183642+4153170 TD1 20285 Gaia DR3 1348044175263408384
BD+42 2823 PPM 56084 TIC 101675455 Gaia DR1 1348044170966765568
GCRV 10000 Renson 44140 TYC 3081-1297-1

References (187 between 1850 and 2026) (Total 187)
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 : 7    Distance : 2    Var : 4    Rot : 1    Fe/H : 3    Plx : 5    PM : 4    SpT : 4   

   

External archives :

Archive data at HEASARC - High-Energy Astrophysics Science Archive Research Center

Link by name to the catalogue in VizieR :

HD 156965 AG+41 1464 AP J17183642+4153170 BD+42 2823 GSC 03081-01297
HIC 84670 HIP 84670 2MASS J17183642+4153170 PPM 56084 SAO 46626
TD1 20285 TYC 3081-1297-1 uvby98 100156965 V* TX Her Gaia DR2 1348044175263408384
Gaia DR3 1348044175263408384 Gaia DR1 1348044170966765568

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