Peremennye Zvezdy

"Peremennye Zvezdy",
Prilozhenie
,
vol. 16, N 6 (2016)

Investigation of 25 Early Type Suspected Variables

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

Received:   7.07.2016;   accepted:   15.12.2016
(E-mail for contact: helene@inasan.ru, pastukhova@sai.msu.ru)


#NameOtherCoord (J2000)TypeMaxMinSystemPeriodEpoch (JD)typeSpCommentL.CurveFind.ChartData
1NSV 11319HV 1005518 47 20.45, -53 03 40.8EW14.1814.84CV0.4571542455029.972min Comm. 111319lc.jpg11319ch.jpg11319dat.txt
2NSV 11334HV 1005818 48 17.53, -55 23 40.7EB14.0014.60CV0.4708122456394.216min Comm. 211334lc.jpg11334ch.jpg11334dat.txt
3NSV 11340S 712518 49 03.61, -58 16 54.6EA14.4016.17CV1.4445602456149.040min Comm. 311340lc.jpg11340ch.jpg11340dat.txt
4NSV 11497S 743818 55 21.84, -47 55 02.0RRAB13.514.5:CV0.4408342456132.067max Comm. 411497lc.jpg11497ch.jpg11497dat.txt
5NSV 11532Ross 23918 55 40.35, -09 14 57.4EA13.4514.1V1.0270552454576.855min Comm. 511532lc.jpg11532ch.jpgASAS 185540-0914.9
6NSV 11541S 744118 56 46.80, -47 43 35.5RRAB14.1414.87CV0.5024042456214.980max Comm. 611541lc.jpg11541ch.jpg11541dat.txt
7NSV 11491BV 113218 56 57.76, -70 35 34.9RRAB13.6014.45CV0.5774022456089.233max Comm. 711491lc.jpg11491ch.jpg11491dat.txt
8NSV 11702S 936519 02 49.65, +53 47 18.2RRAB15.316.2CV0.5953712454741.729max Comm. 811702lc.jpg11702ch.jpg11702dat.txt
9NSV 11682S 745719 03 48.85, -42 40 15.5RRC14.8215.45CV0.3177852456150.982max Comm. 911682lc.jpg11682ch.jpg11682dat.txt
10NSV 11726S 936619 04 23.98, +54 13 47.2EW:15.3216.0:CV0.2587582456077.773min Comm. 1011726lc.jpg11726ch.jpg11726dat.txt
11NSV 11739Innes 16419 07 09.53, -38 04 03.7RRC13.9714.32CV0.3147122454362.928max Comm. 1111739lc.jpg11739ch.jpg11739dat.txt
12NSV 11747S 746219 08 06.72, -43 50 44.8RRC14.6115.00CV0.3201072456460.090max Comm. 1211747lc.jpg11747ch.jpg11747dat.txt
13NSV 11752S 746519 08 46.65, -40 28 21.2RRC13.7614.19CV0.3886052456214.987max Comm. 1311752lc.jpg11752ch.jpg11752dat.txt
14NSV 11779S 746719 11 27.10, -44 57 06.0RRC14.3214.73CV0.3144702455707.253max Comm. 1411779lc.jpg11779ch.jpg11779dat.txt
15NSV 11832S 937319 12 21.06, +55 05 06.4RRAB15.0<15.8CV0.6979002456568.71max Comm. 1511832lc.jpg11832ch.jpg11832dat.txt
16NSV 11784S 713219 12 34.32, -57 34 05.2EA15.1015.80CV0.9301152454945.166min Comm. 1611784lc.jpg11784ch.jpg11784dat.txt
17NSV 11825BV 96919 19 13.56, -79 22 20.4RRAB13.114.2V0.6512382454357.639max Comm. 1711825lc.jpg11825ch.jpgASAS 191914-7922.3
18 SSS J19207.6-42053919 21 07.62, -42 05 39.4RRC16.1016.45CV0.3102102456214.985max Comm. 1818lc.jpg18ch.jpg18dat.txt
19 SSS J19315.2-30511919 31 05.16, -30 51 19.4RRAB14.815.52CV0.6779222455849.964max  19lc.jpg19ch.jpg19dat.txt
20NSV 12146543.193319 34 16.81, -31 08 54.8EW14.4614.76CV0.4031912454297.056min  12146lc.jpg12146ch.jpg12146dat.TXT
21NSV 12157544.193319 34 56.23, -30 49 12.0RRAB14.8015.60CV0.4656722455849.953max  12157lc.jpg12157ch.jpg12157dat.TXT
22NSV 12232S 718719 39 28.64, -42 51 35.0EW13.9114.48CV0.35110752454531.282min  12232lc.jpg12232ch.jpg12232dat.txt
23NSV 12240S 719019 39 42.02, -43 12 23.5EW14.4815.04CV0.3665532456151.034min  12240lc.jpg12240ch.jpg12240dat.TXT
24NSV 12217BV 132019 39 53.02, -63 42 26.9RRAB13.714.9:V0.6401832454583.893max  12217lc.jpg12217ch.jpgASAS 193953-6342.5
25NSV 12389S 723119 47 09.89, -37 40 14.4RRC15.0715.48CV0.3421782456060.295max Comm. 2512389lc.jpg12389ch.jpg12389dat.txt

Comments:


1. MinII = 14.74 CV.

2. MinII = 14.21 CV.

3. MinII = 14.6: CV, D = 0.15 P.

4. Blazhko effect.

5. MinII = 13.65: V, D = 0.16 P.

6. M-m = 0.11 P. NE companion of 5" pair.

7. M-m = 0.16 P.

8. M-m = 0.17 P.

9. M-m = 0.29 P.

10. MinI may be changed to MinII.

11. M-m = 0.40 P. We recovered the variable suspected by Innes (1917). Finding charts for these variables have never been published before.

12. M-m = 0.45 P.

13. M-m = 0.43 P.

14. M-m = 0.41 P.

15. We analyzed observations from in the SuperWASP (Butters et al. 2010) and Catalina (Drake at al. 2009) Surveys.

16. MinII = 15.53 CV, D = 0.09 P.

17. M-m = 0.15 P.

18. M-m = 0.45 P. EW type with a twice longer period is also possible.

25. M–m = 0.45 P.

Remarks:
We calculated light elements and defined type of variability for 23 stars as a part of our work on improvement of the precise coordinates for variables in the electronic version of the NSV catalog (Samus et al. 2007–2015). Also we add to this list two stars numbered as #18 and #19. These additional objects were found as a consequence of recovery of Luyten's variables NSV 11908 and NSV 12086 respectively, both without published finding charts. We studied the variables using publicly available electronic archives of CCD observations of the ASAS-3 project (Pojmanski 2002) and the Catalina Sky Survey photometric data (Drake et al. 2009).

Acknowledgments: The authors wish to thank A.V. Khruslov for using SuperWASP data in their investigations. Our studies are partialy supported by a grant from the Program "Transition and explosive processes in the Universe" of the Presidium of Russian Academy of Sciences.

References:
Butters, O.W., West, R.G., Anderson, D.R., et al., 2010, Astron. Astrophys., 520, L10
Drake, A.J., Djorgovski, S.G., Mahabal, A., et al., 2009, Astrophys. J., 696, 870
Innes, R.T.A., 1917, Circ. Union Obs., No.37, 300
Pojmanski, G., 2002, Acta Astron., 52, 397
Samus, N.N., Durlevich, O.V., Goranskij, V.P., Kazarovets, E V., Kireeva, N.N., Pastukhova, General Catalogue of Variable Stars, Centre de Donnees Astronomiques de Strasbourg, B/gcvs



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