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6"Peremennye Zvezdy", Prilozhenie, vol. 21, N 2 (2021)
Light elements for seven eclipsing binaries and for six suspected variables of other types
E. V. Kazarovets
Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia ISSN 2221-0474 DOI: 10.24412/2221 -0474-2021 -2
Received: 19.05.2021; accepted: 28.05.2021
(E-mail for contact: helene@inasan.ru)
#| Name Other Coord (J2000) Type Max Min System Period Epoch (JD) type Sp. Comment L.Curve Find.Chart Data
1 NSV 14287 S 9700 22 42 38.41, +52 24 27.7 EB 14.81 15.35 V 1.92879 2458383.923 min Comm. 1 14287lc.jpg 14287ch.jpg 14287dat.txt
2 NSV 14323 S 9707 22 48 22.90, +48 11 35.3 EA 14.41 15.03 V 4.53753 2457984.920 min Comm. 2 14323lc.jpg 14323ch.jpe 14323dat.txt
3 NSV 14357 S10098 22 54 13.98, +56 52 37.9 EA 13.92 14.22 V 2.04881 2458060.865 min Comm. 3 14357lc.ipg 14357ch.jpe 14357dat.txt
4 NSV 14400 GSC 3997-01854 23 02 37.51, +58 35 09.2 EA 13.10 13.82 V 3.34363 2458406.893 min Comm. 4 14400lc.ipg 14400ch.jpe 14400dat.txt
5 USN0-A2.0 0825-19934569 23 24 32.84, -03 54 35.9 SR 16.25 16.79 CV 335. 2454730 max Comm. 5 A0825lc.ipg A0825ch.ipg A0825dat.txt
6 NSV 14565 GSC 4280-02147 23 26 42.16, +60 14 34.5 ACV: 11.57 11.63 V 2.47759 2458012.956 max Comm. 6 14565lc.jpe 14565ch.jpe 14565dat.txt
7 NSV 14580 SVS 1167 23 27 33.15, +60 27 03.8 SRC 10.58 11.43 V 416. 2458980 max Comm. 7 14580lc.ipg 14580ch.ipg 14580dat.txt
8 NSV 14585 GSC 4486-00616 23 27 32.48, +72 09 42.0 EA 10.84 11.27 V 3.22766 2458065.725 min Comm. 8 14585lc.ipe 14585ch.ipe 14585dat.txt
9 NSV 14660 HV 9760 23 40 19.34, -44 29 04.8 SRD 13.79 14.40 V 50.7 2456844.8 max Comm. 9 14660lc.jpg 14660ch.jpe 14660dat.txt
10 NSV 14695 S 8309 23 45 23.75, +57 53 57.8 EW 15.51 16.01 V 0.357286 2458067.760 min Comm. 10 14695lc.ipg 14695ch.ipg 14695dat.txt
11 NSV 14729 SVS 751 23 51 34.93, +45 31 26.5 RVA 13.31 14.95 V 220.9 2456990.8 min Comm. 11 14729lc.ipg 14729ch.ipg 14729dat.txt
12 NSV 14741 S 8310 23 53 36.14, +56 06 04.0 EA 14.81 15.60 V 1.17880 2458347.945 min Comm. 12 14741lc.jpe 14741ch.jpe 14741dat.txt
13 NSV 14774 SVS 839 23 57 34.90, +62 00 29.4 BCEP 11.89 11.96 V 0.653937 2457633.939 max Comm. 13 14774lc.jpe 14774ch.jpe 14774dat.txt
Comments:
1. Min II = 15.28 V.
2. Min II = 14.61 V, D = 0.04 P.
3. Min II = 13.96 V, D = 0.06 P. Twice longer period is also possible.
4. Min II = 13.22 V, D = 0.08 P. Min II - Min I = 0.645 P.
5. Near the position of NSV 14544 (Luyten, 1937). Variability of this star was discovered by us using Catalina Sky Survey (CRTS) photometric data.
6. Sp A1. Alias P = 0.711070 d.
7. Sp M4I. ASAS-SN photometry in V- and g-bands, taken together, was used for period determination. g magnitudes were corrected by -1 mag.
8. Min II = 10.95 V, D = 0.04 P. The star was suspected by Metzger (1931) who published no finding chart. Recovered by us using the ASAS-SN project photometric data.
9. J = 11.96, J - H = 0.40, H - K = 0.12. The star was suspected by Luyten (1935) who published no finding chart. Recovered by us using the Catalina Sky Survey (CRTS) photometric data.
10. Min II = 16.00 V. Min I may be Min II.
11. J = 11.17, J - H = 0.31, H - K = 0.24. The star was included in the ASAS-SN Catalog of Variable Stars (Jayasinghe et al. 2018) with a type SR and P = 109.3427086 d.
12. Min II = 15.54 V, D = 0.14 P. The star was included in the ASAS-SN Catalog of Variable Stars (Jayasinghe et al. 2018) with a type EB and P = 2.8822451 d.
13. Sp OB-. M - m = 0.33 P. Remarks:
In the current paper, I continue to announce the preparation of the revised electronic version of the New catalogue of suspected variable stars (NSV). While working on compiling the next Name-List for Version 5.1 of the General Catalogue of Variable Stars (GCVS) (Samus et al. 2017), I determined types, light elements and improved coordinates for 1 new variable star and 12 stars towards the end of NSV catalogue (Kukarkin et al. 1982) to transfer them to the GCVS. The study of the variables was made using the publicly available electronic archive of CCD observations of the All-Sky Automated Survey for Supernovae (ASAS-SN) project (Shappee et al. 2014, Kochanek et al. 2017) andCatalina Sky Survey (CRTS) photometric data (Drake et al. 2009). To find periods I applied the WinEfk software provided by Dr. V.P. Goranskij and the online light curve analysis tool by Dr. K.V. Sokolovsky.
References:
Drake, A.J., Dj orgovski, S.G., Mahabal, A., et al., 2009, Astrophys. J., 696, No. 1, 870
Jayasinghe, T., Stanek, K.Z., Kochanek, C.S., et al., 2018, Mon. Not. Royal Astron. Soc., 486, No. 2, 1907
Kochanek, C.S., Shappee, B.J., Stanek, K.Z., et al., 2017, Publ. Astron. Soc. Pacific, 129, No. 980, 104502
Kukarkin, B.V., Kholopov, P.N., et al., 1982, New Catalogue of Suspected Variable Stars. Moscow: Publ. House "Nauka"
Luyten, W.J., 1935, Astron. Nachr., 256, 332
Luyten, W.J., 1937, Astron. Nachr., 261, 454
Metzger, J., Beobachtungs-Zirkular der Astron. Nachr., 1931, 13, Nr. 41, 70
Samus, N.N., Kazarovets, E.V., Durlevich, O.V., Kireeva, N.N., Pastukhova, E.N., 2017, Astron. Rep., 61, No. 1, 80 Shapee, B.J., Prieto, J.L., Grupe, D., et al., 2014, Astrophys. J., 788, No. 1, article id. 48
