CC BY
17"Peremennye Zvezdy", Prilozhenie,
vol. 19, N 2 (2019)
Variability types and light elements for several suspected variable stars
E. V. Kazarovets
Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia ISSN 2221-0474 DOI: 10.24411/2221 -0474-2019-00005
Received: 2.12.2019; accepted: 18.12.2019
(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 13172 GSC 2690-01618 20 35 51.87, +32 57 14.4 RS 11.86 12.46 V 27.8 2457940.6 max Comm. 1 13172lc.jpg NSV13172ch.ipg 13172dat.txt
2 NSV 13183 GSC 3962-01672 20 36 23.48, +59 08 58.5 EB 13.86 14.06 V 19.641 2457936.867 min Comm. 2 13183lc.jpg NSV13183ch.jpg 13183dat.txt
3 NSV 13270 HV 1185 20 44 32.55, +32 19 57.0 EA 14.92 15.95 V 1.90719 2457490.067 min Comm. 3 13270lc.jpg NSV13270ch.ipg 13270dat.txt
4 NSV 13279 S 9081 20 44 54.99, +33 27 57.1 EA 14.29 15.46 V 0.807665 2457852.090 min Comm. 4 13279lc.jpg NSV13279ch.ipg 13279dat.txt
5 NSV 13310 HV 1190 20 48 03.36, +33 05 02.1 M 13.4 <16.6 V 353. 2458002 max Comm. 5 13310lc.jpg NSV13310ch.ipg 13310dat.txt
6 NSV 13341 SVS 1410 20 50 01.16, +32 07 51.3 EA 14.65 15.57 V 2.47767 2458347.875 min Comm. 6 13341lc.jpg NSV13341ch.jpg 13341dat.txt
7 NSV 13362 S 9099 20 51 29.87, +33 50 07.3 SRA: 14.4 17.0 : V 273. 2458288 max Comm. 7 13362lc.jpg NSV13362ch.jpg 13362dat.txt
8 NSV 13374 S 9101 20 51 54.42, +34 04 17.0 EA 15.63 16.2 V 3.5047 2458291.928 min Comm. 8 13374lc.jpg NSV13374ch.jpg 13374dat.txt
9 NSV 13520 S10083 21 05 07.58, +45 33 45.8 EB 14.87 16.47 V 0.96730 2457511.084 min Comm. 9 13520lc.jpg NSV13520ch.jpg 13520dat.txt
10 USN0-A2.0 1275-14697464 21 06 00.09, +41 25 31.5 M 14.9 <18. V 417. : 2458298 max Comm. 10 A1275lc.jpg A1275ch.jpg A1275dat.txt
11 NSV 13547 S 9104 21 06 57.55, +39 12 20.9 EA 15.83 16.45 V 4.1517 2457980.881 min Comm. 11 13547lc.jpg NSV13547ch.jpg 13547dat.txt
12 NSV 13589 GSC 3169-00498 21 11 11.22, +37 52 18.7 M 12.6 <14.9 V 359. 2457559 max 13589lc.jpg NSV13589ch.jpg 13589dat.txt
13 NSV 13652 S 9124 21 18 39.27, +39 08 44.2 EW 15.66 16.16 V 0.379017 2458431.781 min Comm. 13 13652lc.jpg NSV13652ch.jpg 13652dat.txt
14 NSV 13655 HV 6118 21 19 28.63, +23 21 06.2 RRC 14.48 15.02 V 0.320841 2457954.821 max Comm. 14 13655lc.jpg NSV13655ch.jpg 13655dat.txt
15 NSV 13775 GSC 2196-00414 21 32 32.50, +27 44 44.1 RVA 11.67 11.95 V 163.65 2457909.0 min Comm. 15 13775lc.jpg NSV13775ch.jpg 13775dat.txt
Comments:
1. X-ray source 1WGA J2035.8+3257.
2. Min II = 13.98 V. The star was included in the ASAS-SN Catalog of Variable Stars II (Jayasinghe et al. 2018) with a type ROT and period of 9d8185186 .
3. The star was suspected by Leavitt (1906) without published finding chart. It recovered by me using the ASAS-SNphotometric data. Min II = 15.02 V, D = 0.10 P.
4. Min II = 14.45 V, D = 0.20 P.
5. The star was suspected by Leavitt (1906) without published finding chart. It recovered by us using the ASAS-SNphotometric data.
6. Min II = 14.74 V, D = 0.12 P.
7. Mira type and Min <17.0 V are not excluded. I measured minimal brightness using DSS images of the STScI Archive: V = 17.0 on the Quick-V Northern plate (1983-08-12), B = 18.4 on the POSS-II blue plate (1989-07-01), R = 15.7 on the POSS-II red plate (1992-06-29).
8. Min II = 15.8 V, D = 0.04 P.
9. Min II = 15.08 V.
10. Neighbor of NSV 13535. Variability of this star was discovered by me using DSS images of the STScI Archive. For example, R = 15.0 on the POSS-I red plate (1954-07-05) and R = 18.0 on the POSS-II red plate (1991-07-09).
11. Min II = 15.96 V, D = 0.08: P.
13. Min II = 16.14 V.
14. The star was suspected by Shapley and Hughes (1934) without published finding chart. It was found, upon my request, by the late Dr. M. Hazen in Harvard Observatory's logbooks. M - m = 0.30 P.
15. The star was suspected by Shapley and Hughes (1934) without published finding chart. It was found, upon my request, by the late Dr. M. Hazen thanks to the author's marks on Harvard Observatory's photographic plates. The star was included in the ASAS-SN Catalog of Variable Stars II (Jayasinghe et al. 2018) with a type SR and period of 81d9892624.
Remarks:
In the current paper, I continue to announce the preparation of the new electronic version of the New Suspected Variables Catalogue. While working on compiling of the Name-List No. 82 for Version 5.1 of GCVS (Samus et al. 2017), I determined types, light elements and improved coordinates for 1 new variable star and 14 more stars from the NSV catalogue (Kukarkin et al. 1982) to transfer them to the General Catalogue of Variable Stars. The study of the variables was made using the publicly available electronic archive of CCD observations of the Sky Patrol All-Sky Automated Survey for Supernovae (ASAS-SN) project (Shappee et al. 2014, Kochanek et al. 2017). I measured brightness of large part of the Mira variables using Digitized Sky Survey images (B, V, R bands) of the Space Telescope Science Institute Archive (the STScI Digitized Sky Survey). To find periods, I applied the WinEfk software provided by Dr. V.P. Goranskij and the on-line lightcurve analysis tool of Dr. K.V. Sokolovsky.
References:
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: "Nauka" Leavitt, H.S., 1906, Harvard Circ., No. 107
Samus, N.N., Kazarovets, E.V., Durlevich, O.V., Kireeva, N.N., Pastukhova, E.N., 2017, General Catalogue of Variable Stars: Version GCVS 5.1, Astron. Rep., 61, No. 1, pp. 80-88 Shapee, B. J., Prieto, J. L., Grupe, D., et al., 2014, Astrophys. J., 788, No. 1, article id. 48 Shapley, H., and Hughes, E.M., 1934, Harvard Annals, 90, No. 4, 163
