Peremennye Zvezdy

"Peremennye Zvezdy",
Prilozhenie
,
vol. 16, N 7 (2016)

A Study of 41 Red Variables

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

Received:   18.07.2016;   accepted:   29.12.2016
(E-mail for contact: helene@inasan.ru, pastukhova@sai.msu.ru)


#NameOtherCoord (J2000)TypeMaxMinSystemPeriodEpoch (JD)typeSpCommentL.CurveFind.ChartData
1 GSC 7909-0051518 21 06.04, -42 15 07.5SR10.912.4V1262454975max  1lc.jpg1ch.jpgASAS 182106-4215.1
2NSV 11102BV 139418 38 02.45, -47 10 40.5SR9.810.8V6802455025max  11102lc.jpg11102ch.jpgASAS 183802-4710.7
3NSV 11155S 991418 38 43.99, +10 25 32.8SR10.010.6V3312453820maxM4Comm. 311155lc.jpg11155ch.jpgASAS 183844+1025.5
4NSV 11167HV 1002018 40 58.38, -50 11 01.9SR12.613.6V3852454850max  11167lc.jpg11167ch.jpgASAS 184058-5011.0
5NSV 11258GSC 6292-0041118 44 01.82, -21 42 09.6SR10.111.3V12102454200maxM5Comm. 511258lc.jpg11258ch.jpgASAS 184402-2142.1
6NSV 11360Innes 15618 49 31.28, -31 10 05.8SR11.713.6V94.02455040max Comm. 611360lc.jpg11360ch.jpgASAS 184930-3110.0
7NSV 11375HV 1007518 50 57.58, -56 11 32.3BY13.1513.32CV4.9552455104.95max Comm. 711375lc.jpg11375ch.jpg11375dat.txt
8NSV 11545AN 779.193618 55 49.82, -05 56 13.1M13.0<17.5V213:2455110max Comm. 811545lc.jpg11545ch.jpgASAS 185549-0556.2
9NSV 11542AN 778.193618 55 57.41, -18 02 22.1M12.35<15.7V2922455080max  11542lc.jpg11542ch.jpgASAS 185557-1802.4
10NSV 11576AN 228.193018 56 48.90, +14 30 27.0M13.0<16.2V3062454350max  11576lc.jpg11576ch.jpgASAS 185649+1430.5
11NSV 11566AN 780.193618 57 00.87, -21 28 21.1M13.2<16.5V2282455023max Comm. 1111566lc.jpg11566ch.jpgASAS 185701-2128.3
12NSV 11560S 744418 57 35.64, -45 28 09.3SR12.113.6V1952454972max  11560lc.jpg11560ch.jpgASAS 185735-4528.5
13NSV 11606AN 87.193418 58 11.48, +21 52 52.6M12.4<14.5V2792455062max  11606lc.jpg11606ch.jpgASAS 185811+2152.9
14NSV 11613BV 171018 59 32.52, -14 29 37.3SR13.114.5V1822455005max  11613lc.jpg11613ch.jpgASAS 185933-1429.6
15NSV 11668AN 942.193619 02 23.63, -25 32 35.1SR13.214.3V3112454830max Comm. 1511668lc.jpg11668ch.jpgASAS 190224-2532.6
16NSV 11674AN 791.193619 02 29.77, -04 59 02.7M12.5<14.5V250.52455083max Comm. 1611674lc.jpg11674ch.jpgASAS 190230-0459.1
17NSV 11675AN 792.193619 02 36.01, -01 06 17.8M13.6<16.5V2762454552max  11675lc.jpg11675ch.jpgASAS 190236-0106.3
18NSV 11672S 745619 03 21.00, -45 58 39.0SRA12.014.0V142.02455092max  11672lc.jpg11672ch.jpgASAS 190321-4558.6
19NSV 11740S 935219 05 24.49, +47 33 46.0SR13.213.8*882451503maxM7 11740lc.jpg11740ch.jpg11740dat.txt
20NSV 11728SVS 62419 06 13.17, -15 49 49.2M10.5<15.0V4802455043max  11728lc.jpg11728ch.jpgASAS 190613-1549.8
21NSV 11733Kooreman 6819 06 37.67, -31 23 16.8SR11.612.7V8202454820maxM5-M6Comm. 2111733lc.jpg11733ch.jpgASAS 190637-3123.3
22NSV 11755GSC 0471-0092419 08 16.64, +04 29 52.0M11.9<14.6V5802454285max Comm. 2211755lc.jpg11755ch.jpgASAS 190817+0429.9
23NSV 11818S 1052619 13 07.94, -01 27 13.0SR12.814.0V83.52455065max  11818lc.jpg11818ch.jpgASAS 191308-0127.2
24NSV 11860Innes 17119 17 07.51, -31 00 19.0SR12.414.7:V2032454990max  11860lc.jpg11860ch.jpgASAS 191708-3100.3
25NSV 11890BV 171119 18 49.27, -13 06 41.2M:13.1<15.0V2572454922max  11890lc.jpg11890ch.jpgASAS 191849-1306.6
26NSV 11911AN 805.193619 20 08.64, -03 01 59.2M12.7<14.9V3212454219max Comm. 2611911lc.jpg11911ch.jpgASAS 192009-0302.0
27NSV 11903AN 948.193619 20 16.29, -28 17 42.1M12.4<15.0V3072455075max Comm. 2711903lc.jpg11903ch.jpgASAS 192016-2817.7
28NSV 11935S 1055019 21 30.85, +00 16 59.4SR12.713.8V4302454710max  11935lc.jpg11935ch.jpgASAS 192131+0017.0
29NSV 11956AN 9.190519 22 53.38, -00 37 17.0M12.7<15.1V3322455013max  11956lc.jpg11956ch.jpgASAS 192253-0037.3
30NSV 11941BV 139719 23 03.03, -46 20 36.5SR10.311.3V6302455100max  11941lc.jpg11941ch.jpgASAS 192303-4620.6
31NSV 11969AN 13.190519 23 30.16, +01 31 19.6M13.2<16.4V3062455103max Comm. 3111969lc.jpg11969ch.jpgASAS 192330+0131.3
32NSV 11904AN 132.193219 23 31.24, -74 13 29.8SR12.014.3V1422455022max Comm. 3211904lc.jpg11904ch.jpgASAS 192331-7413.5
33NSV 11983S 439919 24 12.18, +03 08 36.9SR12.7<14.0V70.52455100max  11983lc.jpg11983ch.jpgASAS 192412+0308.6
34NSV 12009IRC +4034619 24 59.07, +36 01 42.0M9.8:13.2*450:2451570maxM8III 12009lc.jpg12009ch.jpg12009dat.txt
35NSV 12050 19 27 40.18, +06 53 59.9M13.7<15.9V2252454986maxM6 12050lc.jpg12050ch.jpgASAS 192740+0654.0
36NSV 12077GSC 2125-0118919 29 01.93, +23 16 04.5SR11.112.1V1602454970max  12077lc.jpg12077ch.jpgASAS 192902+2316.1
37NSV 12100AN 21.190519 31 00.82, +02 43 21.7M13.5<17.0V2902454230max  12100lc.jpg12100ch.jpgASAS 193101+0243.4
38NSV 12091AN 326.193319 31 14.03, -35 18 52.2SRA12.514.6V119.22455060max Comm. 3812091lc.jpg12091ch.jpgASAS 193114-3518.9
39NSV 12134AN 962.193519 34 23.99, -45 23 32.3M12.9<15.2V3922452553max Comm. 3912134lc.jpg12134ch.jpgASAS 193424-4523.5
40NSV 12241AN 299.194319 38 54.88, +06 19 58.3SR12.314.1V80.02454633.8max  12241lc.jpg12241ch.jpgASAS 193855+0619.9
41NSV 12254HV 543919 39 10.63, +08 30 18.9M13.8<15.0V2632454607max Comm. 4112254lc.jpg12254ch.jpgASAS 193911+0830.3

Comments:


3. Superposed variations with P = 47.3 d.

5. Superposed variations with P = 119 d.

6. Was suspected by Innes (1917). Recovered by us.

7. HV 10075 = 1RXS J185057.0-561148.

8. Was suspected by Luyten (1937). Recovered by us.

11. Was suspected by Luyten (1937). Recovered by us.

15. Was suspected by Luyten (1937). Recovered by us.

16. Was suspected by Luyten (1937). Recovered by us.

21. Discovered by Kooreman (1965).

22. M. Sitek and G. Pojmanski (2014) gave Mira type with a wrong period of 1173 d.

26. Was suspected by Luyten (1937). Recovered by us.

27. Was suspected by Luyten (1937). Recovered by us.

31. We proofed our P = 306 d using the NSVS data.

32. Was suspected by Luyten (1932). Recovered by us.

38. Was suspected by Luyten (1933). Recovered by us.

39. Was suspected by Luyten (1935). Recovered by us.

41. Was suspected by Hoffleit (1932). Recovered by us.

Remarks:
In the process of improving coordinates of variable stars in the electronic version of NSV catalog (Samus et al. 2007–2015), we determined light elements and types of variability for 40 red suspected variables. 1 variable was discovered when we were searching for Luyten's star NSV 11908. Finding charts for recovered variable stars mentioned in the comments are published for the first time. The study of the variables was made using the 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). We studied the variability of NSV 11740 and NSV 12009 in the Northern Sky Variability Survey (NSVS) data (Woźniak et al. 2004). We measured minimal brightness for many Mira variables using Digitized Sky Survey images (R-band) of the STScI Archive. Variability of 10 stars was discovered in the ASAS-3 survey; the stars enter in variable-star catalog as a MISC-type with a wrong periods: 72.35 d for #1, 182.75 d for NSV 11102, 52.96 d for NSV 11155, 121.9 d for NSV 11258, 97.1 d for NSV 11360, 127.1 d for NSV 11560, 128.8 d for NSV 11733, 67.91 d for NSV 11860, 240.2 d for NSV 11890, and 483.9 d for NSV 11941.

Acknowledgments: 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 Science

References:
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
Kooreman, C.J., 1965, Leid. Ann., 22, 91
Luyten, W.J., 1932, Astron. Nachr., 246, 437
Luyten, W.J., 1933, Astron. Nachr., 249, 395
Luyten, W.J., 1935, Astron. Nachr., 258, 121
Luyten, W.J., 1937, Astron. Nachr., 261, 451
Pojmanski, G., 2002, Acta Astron., 52, 397
Samus, N.N., Durlevich, O.V., Goranskij, V.P., Kazarovets, E V., Kireeva, N.N., Pastukhova, E.N., Zharova, A.V., 2007–2015, General Catalogue of Variable Stars, Centre de Donnees Astronomiques de Strasbourg, B/gcvs
Sitek, M., Pojmanski G., 2014, Acta Astron., 64, 115
Woźniak, P. R., Vestrand, W. T., Akerlof, C. W., et al., 2004, Astron. J., 127, 2436



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