2004A&A...423..607G

Query : 2004A&A...423..607G

2004A&A...423..607G - Astronomy and Astrophysics, volume 423607-611 (2004/8-4)

A study of the EB-type eclipsing binary GR Tauri with mass transfer.

GU S.-H., CHEN P.-S., CHOY Y.-K., LEUNG K.-C., CHUNG W.-K. and POON T.-S.

Abstract (from CDS):

In this paper, new CCD BV light curves of the EB-type eclipsing binary GR Tau, which were obtained in 1999, are analyzed by means of the Wilson-Devinney program. The photometric solution of this system is obtained, and its absolute parameters are also derived. Our study has demonstrated that GR Tau is a near-contact binary system with an almost-contact semidetached configuration in which the primary fills its Roche lobe, and both components are main-sequence stars. The asymmetric shape of the light curves can be explained by a hot spot on the surface of the secondary, which is created by the mass transfer from the primary to the secondary. GR Tau belongs to the V1010 Oph subclass of near-contact binaries, and is a good example of a system in the broken-contact phase predicted by the TRO theory.

Abstract Copyright: ∼

Journal keyword(s): stars: binaries: close - stars: individual: GR Tau

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* GR Tau	SB*	04 01 03.2344925232	+20 24 50.248533276		10.80	10.36	10.43		A5V	84	0

Query : 2004A&A...423..607G

Basic data :

V* GR Tau -- Spectroscopic Binary

* (BD,EPIC,...), SB* (2022yCat,SBC9), EB* (2022yCat), V* (V*), NIR (2MASS)

04 01 03.2344925232 +20 24 50.248533276 (Optical) [ 0.0287 0.0173 90 ] A 2020yCat.1350....0G

03 58 08.0851018840 +20 16 29.092595592 [ 0.0287 0.0173 90 ]

171.9349856337072 -23.9217197197909 [ 0.0287 0.0173 90 ]

-7.142 -29.422 [0.035 0.021 90] A 2020yCat.1350....0G

V(km/s) -33.2 [~] / z(~) -0.000111 [~] / cz -33.20 [~] E 1995A&AS..114..269D

2.9554 [0.033] A 2020yCat.1350....0G

A5V C 1984PASJ...36..175Y

B 10.80 [0.06] D 2000A&A...355L..27H

V 10.36 [0.05] D 2000A&A...355L..27H

R 10.43 [0.04] D 2009yCat.1315....0Z

G 10.386029 [0.008145] C 2020yCat.1350....0G

J 9.720 [0.021] C 2003yCat.2246....0C

H 9.536 [0.022] C 2003yCat.2246....0C

K 9.426 [0.018] C 2003yCat.2246....0C

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`BD+20 685`	`SBC9 213`	`UCAC2 38920408`	`Gaia DR2 50652993161025792`
`EPIC 210835735`	*`SV BV 152`**	`UCAC3 221-18085`	`Gaia DR3 50652993161025792`
`GSC 01258-00505`	`TIC 14257028`	*`V GR Tau`**	`Gaia DR1 50652988863155840`
`2MASS J04010323+2024503`	`TYC 1258-505-1`	`WEB 3612`

References (84 between 1850 and 2026) (Total 84)
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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`BD+20 685`	`GSC 01258-00505`	`2MASS J04010323+2024503`	`TYC 1258-505-1`	`UCAC2 38920408`
`UCAC3 221-18085`	*`V GR Tau`**	`Gaia DR2 50652993161025792`	`Gaia DR3 50652993161025792`	`Gaia DR1 50652988863155840`

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