Journal "Peremennye Zvezdy"

"Peremennye Zvezdy",
Prilozhenie,
vol. 11, N 34 (2011)

Eight New Eclipsing Binaries

A. V. Khruslov
Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia

ISSN 2221–0474

Received: 7.08.2011; accepted: 28.12.2011
(E-mail for contact: khruslov@bk.ru)

#	Other	Coord (J2000)	Type	Max	Min	System	Period	Epoch (JD)	type	Comment	L.Curve	Find.Chart	Data
1	USNO-A2.0 1500-01069711	01 01 54.29, +67 08 49.2	EA	13.57	13.82	R	1.8799	2451471.876	min	Comm. 1	1.PNG	chart1.PNG	NSVS 232996 NSVS 332685 NSVS 1640558 NSVS 1682946
2	GSC 3336-02092	04 11 24.01, +49 00 43.9	EA	13.4	13.7:	R	1.3526	2451502.54	min	Comm. 2	2.PNG	chart2.PNG	NSVS 4248705 NSVS 4272677
3	GSC 2925-00290	06 03 33.35, +39 19 38.2	EW	13.65	14.05	R	0.257573	2451540.552	min	Comm. 3	3.PNG	chart3.PNG	NSVS 4539641
4	GSC 4537-00689	06 11 32.14, +81 52 54.9	EW	13.7	14.0	R	0.37760	2451500.797	min	Comm. 4	4.PNG	chart4.PNG	NSVS 86050 NSVS 111427 NSVS 585481 NSVS 632636
5	GSC 4566-01563	15 45 41.04, +80 36 10.4	EW	14.4	15.0	R	0.34676	2451450.822	min	Comm. 5	5.PNG	chart5.PNG	NSVS 1365 NSVS 1012688 NSVS 1047787 NSVS 1148838
6	GSC 4211-00096	17 41 09.30, +66 52 21.4	EW	12.4	12.7	R	0.38800	2451450.608	min	Comm. 6	6.PNG	chart6.PNG	NSVS 1099875 NSVS 2956110
7	USNO-A2.0 1200-19350667	22 37 08.39, +30 17 23.5	EW	13.7	14.2	R	0.33053	2451460.531	min	Comm. 7	7.PNG	chart7.PNG	NSVS 8908026 NSVS 8948504
8	GSC 2757-00493	22 52 59.60, +33 54 26.4	EB	13.8	14.4	R	0.6245	2451440.966	min	Comm. 8	8.PNG	chart8.PNG	NSVS 8926129 NSVS 8996478

Comments:

1. MinII = 13.78. The secondary minimum is away from the phase 0.5, indicating an eccentric binary. MinII – MinI = 0.525P. The ROTSE data with photometric correction flags were kept for the analysis.

2. MinII = 13.65. D = 0.12P. The ROTSE data with photometric correction flags were kept for the analysis.

3. MinII = 14.0.

4. MinII = 13.95. The ROTSE data with photometric correction flags were kept for the analysis.

5. MinII = 14.9. The ROTSE data with photometric correction flags were kept for the analysis.

6. MinII = 12.7. There is a fainter close companion GSC 4211-00231. The ROTSE data with photometric correction flags were kept for the analysis.

7. MinII = 14.1. The ROTSE data with photometric correction flags were kept for the analysis.

8. MinII = 14.2. The ROTSE data with photometric correction flags were kept for the analysis.

Remarks:
I present the discovery of eight new eclipsing binaries. My search for variables was carried out in the publicly available data of the Northern Sky Variability Survey (NSVS, Wozniak et al. 2004). These observations were analyzed using the period-search software developed by Dr. V.P. Goranskij for Windows environment. The coordinates were drawn from the 2MASS catalog.

References:
Wozniak, P.R., Vestrand, W.T., Akerlof, C.W., et al., 2004, Astron. J., 127, 2436

Eight New Eclipsing Binaries

A. V. Khruslov Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia

A. V. Khruslov
Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia