Peremennye Zvezdy

"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

Received:   2.12.2019;   accepted:   18.12.2019
(E-mail for contact: helene@inasan.ru)


#NameOtherCoord (J2000)TypeMaxMinSystemPeriodEpoch (JD)typeSpCommentL.CurveFind.ChartData
1NSV 13172GSC 2690-0161820 35 51.87, +32 57 14.4RS11.8612.46V27.82457940.6max Comm. 113172lc.jpgNSV13172ch.jpg13172dat.txt
2NSV 13183GSC 3962-0167220 36 23.48, +59 08 58.5EB13.8614.06V19.6412457936.867min Comm. 213183lc.jpgNSV13183ch.jpg13183dat.txt
3NSV 13270HV 118520 44 32.55, +32 19 57.0EA14.9215.95V1.907192457490.067min Comm. 313270lc.jpgNSV13270ch.jpg13270dat.txt
4NSV 13279S 908120 44 54.99, +33 27 57.1EA14.2915.46V0.8076652457852.090min Comm. 413279lc.jpgNSV13279ch.jpg13279dat.txt
5NSV 13310HV 119020 48 03.36, +33 05 02.1M13.4<16.6V353.2458002max Comm. 513310lc.jpgNSV13310ch.jpg13310dat.txt
6NSV 13341SVS 141020 50 01.16, +32 07 51.3EA14.6515.57V2.477672458347.875min Comm. 613341lc.jpgNSV13341ch.jpg13341dat.txt
7NSV 13362S 909920 51 29.87, +33 50 07.3SRA:14.417.0 :V273.2458288max Comm. 713362lc.jpgNSV13362ch.jpg13362dat.txt
8NSV 13374S 910120 51 54.42, +34 04 17.0EA15.6316.2V3.50472458291.928min Comm. 813374lc.jpgNSV13374ch.jpg13374dat.txt
9NSV 13520S 1008321 05 07.58, +45 33 45.8EB14.8716.47V0.967302457511.084min Comm. 913520lc.jpgNSV13520ch.jpg13520dat.txt
10 USNO-A2.0 1275-1469746421 06 00.09, +41 25 31.5M14.9<18.V417. :2458298max Comm. 10A1275lc.jpgA1275ch.jpgA1275dat.txt
11NSV 13547S 910421 06 57.55, +39 12 20.9EA15.8316.45V4.15172457980.881min Comm. 1113547lc.jpgNSV13547ch.jpg13547dat.txt
12NSV 13589GSC 3169-0049821 11 11.22, +37 52 18.7M12.6<14.9V359.2457559max  13589lc.jpgNSV13589ch.jpg13589dat.txt
13NSV 13652S 912421 18 39.27, +39 08 44.2EW15.6616.16V0.3790172458431.781min Comm. 1313652lc.jpgNSV13652ch.jpg13652dat.txt
14NSV 13655HV 611821 19 28.63, +23 21 06.2RRC14.4815.02V0.3208412457954.821max Comm. 1413655lc.jpgNSV13655ch.jpg13655dat.txt
15NSV 13775GSC 2196-0041421 32 32.50, +27 44 44.1RVA11.6711.95V163.652457909.0min Comm. 1513775lc.jpgNSV13775ch.jpg13775dat.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 9d.8185186 .

3. The star was suspected by Leavitt (1906) without published finding chart. It recovered by me using the ASAS-SN photometric 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-SN photometric 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 81d.9892624.

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



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