2018JAVSO..46...43A

Query : 2018JAVSO..46...43A

2018JAVSO..46...43A - J. Am. Assoc. Variable star obs., 46, 43 (2018/June-0)

Observations, Roche Lobe Analysis, and Period Study of the Eclipsing Contact Binary System GM Canum Venaticorum.

ALTON K. and NELSON R.

Abstract (from CDS):

GM CVn is an eclipsing W UMa binary system (P = 0.366984 d) which has been largely neglected since its variability was first detected during the ROTSE campaign (1999n2000). Other than a single unfiltered light curve (LC) no other photometric data have been published. LC data collected in three bandpasses (B, V, and Rc) at UnderOak Observatory (UO) produced three new times of minimum for GM CVn. These along with other eclipse timings from the literature were used to update the linear ephemeris. Roche modeling to produce synthetic LC fits to the observed data was accomplished using binary maker 3, wdwint56a, and phoebe v.31a. Newly acquired radial velocity data were pivotal to defining the absolute and geometric parameters for this partially eclipsing binary system. An unspotted solution achieved the best Roche model fits for the multi-color LCs collected in 2013.

Journal keyword(s):

Status at CDS : Objects in title, abstract, text, figures, and all or part of small table(s) being processed in SIMBAD.

Simbad objects: 1

View the references in ADS

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* GM CVn	SB*	14 01 46.6346710752	+32 08 47.900942592		10.93	10.34	9.816	9.493	F9	18	0

Query : 2018JAVSO..46...43A

Basic data :

V* GM CVn -- Spectroscopic Binary

* (TYC,GSC,...), EB* (2017ARep,[GGM2006]), V* (ROTSE1,V*), SB* (2022yCat), Em* (2023ApJS), NIR (2MASS), Opt (LAMOST)

14 01 46.6346710752 +32 08 47.900942592 (Optical) [ 0.0101 0.0094 90 ] A 2020yCat.1350....0G

13 59 34.1176645961 +32 23 12.978450559 [ 0.0101 0.0094 90 ]

055.3479138503029 +73.9361878135873 [ 0.0101 0.0094 90 ]

-13.051 24.698 [0.015 0.012 90] A 2020yCat.1350....0G

V(km/s) -29.96 [6.36] / z(spectroscopic) -0.000100 [0.000021] / cz -29.96 [6.36] (Opt) D 2023ApJS..264...17Z

5.2642 [0.0151] A 2020yCat.1350....0G

F9 E 2023ApJS..264...17Z

B 10.93 [0.04] D 2000A&A...355L..27H

V 10.34 [0.04] D 2000A&A...355L..27H

R 9.816 [~] D 2012AJ....143...99T

G 10.161720 [0.004957] C 2020yCat.1350....0G

I 9.493 [~] D 2012AJ....143...99T

J 9.162 [0.022] C 2003yCat.2246....0C

H 8.882 [0.049] C 2003yCat.2246....0C

K 8.800 [0.016] C 2003yCat.2246....0C

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`TYC 2545-970-1`	`2MASS J14014664+3208478`	*`V GM CVn`**	`Gaia DR1 1454617118627601152`
`GSC 02545-00970`	`NSVS 7710072`	`[GGM2006] 7710071`
`LAMOST J140146.82+320847.9`	`ROTSE1 J140146.66+320847.5`	`Gaia DR2 1454617122923582976`
`LAMOST J140146.98+320847.9`	`TIC 232527356`	`Gaia DR3 1454617122923582976`

References (18 between 1850 and 2026) (Total 18)
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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`TYC 2545-970-1`	`GSC 02545-00970`	`2MASS J14014664+3208478`	*`V GM CVn`**	`Gaia DR2 1454617122923582976`
`Gaia DR3 1454617122923582976`	`Gaia DR1 1454617118627601152`

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