Peremennye Zvezdy

"Peremennye Zvezdy",
Prilozhenie
,
vol. 15, N 5 (2015)

A Study of 20 Eclipsing Binary Variables from the NSV Catalog

E. V. Kazarovets, E. N. Pastukhova
Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia

Received:   9.10.2015;   accepted:   16.10.2015
(E-mail for contact: helene@inasan.ru, pastukhova@sai.msu.ru)


#NameOtherCoord (J2000)TypeMaxMinSystemPeriodEpoch (JD)typeSpCommentL.CurveFind.ChartData
1NSV 10189HV 1180918 06 44.24, -39 46 11.6EW13.614.2 :V0.3068852453634.540min Comm. 110189lc.jpg10189ch.jpgASAS 180644-3946.2
2NSV 10193HV 798218 07 38.76, -53 15 33.6EW13.414.2V0.4460772453677.543min Comm. 210193lc.jpg10193ch.jpgASAS 180739-5315.6
3NSV 10379Plaut 11618 13 53.97, -35 46 04.8EW13.514.2 :V0.4383702454649.630min Comm. 310379lc.jpg10379ch.jpgASAS 181354-3546.1
4NSV 10388HV 979518 15 05.42, -54 45 11.0EW14.6715.18CV0.33389472455104.950min Comm. 410388lc.jpg10388ch.jpg10388dat.txt
5NSV 10453HV 933018 17 04.67, -47 32 14.6EA13.5< 14.4V6.63032453827.05min Comm. 510453lc.jpg10453ch.jpgASAS 181705-4732.2
6NSV 10480HV 982818 18 12.83, -55 59 44.7EW14.8415.19CV0.6968672455023.115min Comm. 610480lc.jpg10480ch.jpg10480dat.txt
7NSV 10503HV 934018 19 41.62, -62 52 20.0EA14.5516.06CV1.915172453647.885min Comm. 710503lc.jpg10503ch.jpg10503dat.txt
8NSV 10683 18 21 59.92, -23 54 26.1EW13.213.6V0.398102455048.620min Comm. 810683lc.jpg10683ch.jpgASAS 182200-2354.4
9NSV 10729HV 989218 25 07.04, -52 49 16.8EB15.1215.48CV0.6318512455806.012min Comm. 910729lc.jpg10729ch.jpg10729dat.txt
10NSV 10734HV 989318 25 18.82, -53 02 51.4EA14.7815.35CV0.6676312455104.965min Comm. 1010734lc.jpg10734ch.jpg10734dat.txt
11NSV 10760Plaut 85318 25 46.82, -36 44 12.0EA12.713.5V1.014852454573.795min Comm. 1110760lc.jpg10760ch.jpgASAS 182547-3644.2
12NSV 10917HV 994618 31 39.01, -54 52 35.9EA14.5414.78CV0.7144412455763.078min Comm. 1210917lc.jpg10917ch.jpg10917dat.txt
13NSV 10927HV 994918 32 05.54, -57 21 50.8EA13.5514.02CV1.893852453850.125min Comm. 1310927lc.jpg10927ch.jpg10927dat.txt
14NSV 11037HV 997718 35 49.94, -57 01 40.0EW14.2715.05CV0.3212452454354.907min Comm. 1411037lc.jpg11037ch.jpg11037dat.txt
15NSV 11044HV 998018 36 08.95, -55 35 15.2EW14.9315.40CV0.3322232456065.154min Comm. 1511044lc.jpg11044ch.jpg11044dat.txt
16NSV 11047HV 998118 36 15.55, -55 05 24.3EA15.5< 16.6CV4.6362:2456175.80min Comm. 1611047lc.jpg11047ch.jpg11047dat.txt
17NSV 11101 18 37 20.18, -25 19 23.8EB13.413.9V0.4570482454631.767min Comm. 1711101lc.jpg11101ch.jpgASAS 183720-2519.4
18NSV 11137HV 1001018 40 00.16, -55 04 50.3EB14.8515.55CV0.3862212454697.074min Comm. 1811137lc.jpg11137ch.jpg11137dat.txt
19NSV 11162HV 1001818 41 09.20, -55 51 20.9EW13.7014.15CV0.27181852456448.013min Comm. 1911162lc.jpg11162ch.jpg11162dat.txt
20NSV 11220Innes 52a18 42 54.18, -33 18 16.8EW13.614.25V0.3341762454916.893min Comm. 2011220lc.jpg11220ch.jpgASAS 184254-3318.3

Comments:


1. MinII = 14.1. Twice shorter period with DSCT type is also possible.

2. MinII = 13.9.

3. MinII = 13.9.

4. MinII = 15.18.

5. MinII =13.8. No finding chart was available for this variable before.

6. MinII = 15.17. Twice shorter period with RRC type is also possible.

7. MinII = 14.70. D = 0.12 P. No finding chart was available for this variable before.

8. MinII = 13.55.

9. MinII = 15.4:.

10. MinII = 14.93. D = 0.16 P.

11. MinII = 12.9. D = 0.16 P.

12. D = 0.11 P. We see only one minimum and do not know if it is MinI or MinII.

13. MinII = 13.92. D = 0.10 P.

14. MinII = 14.91.

15. MinII = 15.36.

16. MinII = 15.8.

17. MinII = 13.7.

18. MinII = 15.25.

19. MinII = 14.10.

20. MinII = 14.05.

Remarks:
In our work aimed at improvement of the coordinates of variable stars from the NSV catalog (Samus et al. 2007–2015), we found light elements and types for 20 of them. We recovered the variable NSV 10453 suspected by Luyten (1935) and NSV 10503 suspected by Luyten (1933). We study the variables using publicly available electronic archives of CCD observations of the ASAS-3 project (Pojmanski 2002), images of the US Naval Observatory Image and Catalog Archive, and the online publicly available Catalina Sky Survey photometric data (2013).

Acknowledgments: Our studies are supported by a grant from the Program "Transition and explosive processes in the Universe" of the Presidium of Russian Academy of Sciences and by Russian Foundation for Basic Research grant 13-02-00664.

References:
Luyten, W.J., 1933, AN, 249, 395
Luyten, W.J., 1935, AN, 258, 121
Pojmanski, G., 2002, Acta Astron., 52, 397
Samus, N.N., Durlevich, O.V., Kazarovets, E.V., Kireeva, N.N., Pastukhova E.N., et al., 2015, General Catalogue of Variable Stars, Centre de Données Astronomiques de Strasbourg, B/gcvs



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