Peremennye Zvezdy

"Peremennye Zvezdy",
Prilozhenie
,
vol. 13, N 4 (2013)

New Variable Stars in Lyra: Area of 2°.3×2°.3, Centered at α=19h25m.0, δ=42°47′ (2000.0)

E. G. Lapukhin#1, S. A. Veselkov#1, D. A. Yatmanov#1, A. M. Zubareva#2,3
#1. Siberian State Aerospace University, Krasnoyarsk, Russia;
#2. Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia;
#3. Sternberg Astronomical Institute, Lomonosov Moscow State University, Moscow, Russia;

Received:   6.09.2012;   accepted:   28.02.2013
(E-mail for contact: slovoktk@mail.ru)


#NameOtherCoord (J2000)TypeMaxMinSystemPeriodEpoch (JD)typeSpCommentL.CurveFind.ChartData
1 USNO-A2 1275-1113637019 19 09.11, +42 22 06.5LB:12.7012.90   other Comm. 1lc29112.pngch29112.jpgout29112.txt
2 USNO-A2 1275-1113783119 19 11.70, +43 19 18.4BY13.0413.32 15.9112455486.7max  lc09619.pngch09619.jpgout09619.txt
3 USNO-A2 1275-1114314619 19 21.08, +43 21 55.0EB14.8115.05 0.7706812455429.114min Comm. 3lc08943.pngch08943.jpgout08943.txt
4 USNO-A2 1275-1114729119 19 28.31, +42 37 52.7EW15.8716.38 0.2690302455485.031min  lc22002.pngch22002.jpgout22002.txt
5 USNO-A2 1275-1114729619 19 28.32, +42 05 39.3RRC15.4915.82 0.2914032455500.001max  lc37171.pngch37171.jpgout37171.txt
6 USNO-A2 1275-1114837019 19 30.15, +43 47 23.5EW14.5815.39 0.2670182455500.086min Comm. 6lc01645.pngch01645.jpgout01645.txt
7 USNO-A2 1275-1115508419 19 41.66, +43 13 09.1EW13.9014.19 0.4867172455429.337min  lc11512.pngch11512.jpgout11512.txt
8 USNO-A2 1275-1115690319 19 44.74, +43 09 26.7EW14.0714.34 0.3566242455499.934min  lc12630.pngch12630.jpgout12630.txt
9 USNO-A2 1275-1117085619 20 08.36, +43 51 12.3EW15.5116.01 0.2744832455429.350min Comm. 9lc00684.pngch00684.jpgout00684.txt
10 USNO-A2 1275-1117204319 20 10.39, +43 42 55.3RRC14.2414.76 0.2753452455485.033max  lc03041.pngch03041.jpgout03041.txt
11 USNO-A2 1275-1117633319 20 17.52, +42 51 40.9EA14.3214.85 0.5813202455429.297min Comm. 11lc17920.pngch17920.jpgout17920.txt
12 USNO-A2 1275-1117920519 20 22.28, +41 49 24.5SR:12.8212.95 40.92455487max Comm. 12lc32237.pngch32237.jpgout32237.txt
13 USNO-A2 1275-1118114819 20 25.52, +42 46 26.0EW13.9014.39 0.4885152455438.161min  lc19529.pngch19529.jpgout19529.txt
14 USNO-A2 1275-1119585919 20 49.17, +42 25 51.0RRC15.2515.73 0.3022522455500.000max  lc29772.pngch29772.jpgout29772.txt
15 USNO-A2 1275-1119809219 20 52.74, +41 38 25.0L:12.7513.61   other Comm. 15lc24035.pngch24035.jpgout24035.txt
16 USNO-A2 1275-1119948919 20 55.00, +42 36 07.2EW13.0513.77 0.3564332455429.313min Comm. 16lc22703.pngch22703.jpgout22703.txt
17 USNO-A2 1275-1120191619 20 58.84, +42 09 19.3EW15.7316.30 0.3272332455438.371min  lc37492.pngch37492.jpgout37492.txt
18 USNO-A2 1275-1120834819 21 09.36, +42 10 54.5DSCT13.2413.39 0.1507812455500.002max  lc38320.pngch38320.jpgout38320.txt
19 USNO-A2 1275-1120858219 21 09.73, +42 58 58.1EA14.7015.23 0.7991622455467.448min Comm. 19lc15922.pngch15922.jpgout15922.txt
20 USNO-A2 1275-1122391419 21 35.36, +42 43 13.6EW14.1314.26 0.5413132455603.633min  lc20659.pngch20659.jpgout20659.txt
21 USNO-A2 1275-1122728419 21 41.20, +42 04 10.1EW:14.07< 14.39 0.33131:2455819.183min  lc36657.pngch36657.jpgout36657.txt
22 USNO-A2 1275-1123173319 21 49.08, +41 52 34.0EW14.9415.64 0.3710542455822.161min  lc33204.pngch33204.jpgout33204.txt
23 USNO-A2 1275-1123388019 21 52.83, +41 49 23.1EW12.9913.45 0.4485542455467.094min  lc27528.pngch27528.jpgout27528.txt
24 USNO-A2 1275-1123835819 22 00.71, +41 45 50.3EW15.5616.07 0.3018012455485.089min  lc26339.pngch26339.jpgout26339.txt
25 USNO-A2 1275-1124741719 22 16.70, +41 57 32.8EW15.3815.70 0.4227852455503.214min  lc34594.pngch34594.jpgout34594.txt
26 USNO-A2 1275-1124932819 22 20.06, +42 50 21.2EW13.4613.69 0.4064772455485.152min  lc18590.pngch18590.jpgout18590.txt
27 USNO-A2 1275-1125024819 22 21.57, +43 29 44.1BY:14.3814.62 0.9380452455484.911max  lc07110.pngch07110.jpgout07110.txt
28 USNO-A2 1275-1125523719 22 30.29, +43 10 29.3EA15.0115.48 0.6158172455467.374min Comm. 28lc12745.pngch12745.jpgout12745.txt
29 USNO-A2 1275-1125782219 22 34.87, +42 47 52.0EA14.3614.72 0.884352455484.807min  lc19388.pngch19388.jpgout19388.txt
30 USNO-A2 1275-1130313819 23 52.88, +43 00 50.8EA12.65<12.8 1.489792455483.568min Comm. 30lc15702.pngch15702.jpgout15702.txt
31 USNO-A2 1275-1131350419 24 10.54, +42 07 42.5BY13.8614.12 12.762455503.101max Comm. 31lc37415.pngch37415.jpgout37415.txt
32 USNO-A2 1275-1132027919 24 21.81, +42 29 57.4EW15.1815.80 0.3469642455429.144min  lc30556.pngch30556.jpgout30556.txt
33 USNO-A2 1275-1133041919 24 38.55, +43 14 16.5DSCT14.3714.47 0.1306652455429.228max Comm. 33lc11116.pngch11116.jpgout11116.txt
34 USNO-A2 1275-1135639419 25 21.98, +43 17 22.8EW:14.3914.49 0.422232:2455802.169min  lc11077.pngch11077.jpgout11077.txt
35 USNO-A2 1275-1135665819 25 22.43, +42 19 48.2SR:12.6112.85 85.62455438max Comm. 35lc40253.pngch40253.jpgout40253.txt
36 USNO-A2 1275-1135960119 25 27.25, +41 59 51.0LB:12.0912.28   other Comm. 36lc34645.pngch34645.jpgout34645.txt
37 USNO-A2 1275-1138027019 26 01.08, +43 00 44.3EW11.7011.80 0.4381172455499.945min  lc15887.pngch15887.jpgout15887.txt
38 USNO-A2 1275-1138679919 26 11.50, +43 26 01.2BY:12.1512.24 4.938:2455441.323max  lc08631.pngch08631.jpgout08631.txt
39 USNO-A2 1275-1139357719 26 22.26, +42 34 11.0EW15.7216.01 0.2964522455429.586min  lc31855.pngch31855.jpgout31855.txt
40 USNO-A2 1275-1140213519 26 35.99, +42 10 06.1LB:13.3713.93   other Comm. 40lc37771.pngch37771.jpgout37771.txt
41 USNO-A2 1275-1141132419 26 50.68, +42 05 27.5LB:11.2311.44   other Comm. 41lc36317.pngch36317.jpgout36317.txt
42 USNO-A2 1275-1141232519 26 52.28, +43 01 29.3EW14.4214.7 0.3645562455438.173min Comm. 42lc15859.pngch15859.jpgout15859.txt
43 USNO-A2 1275-1143771719 27 32.17, +42 54 37.6EA15.6516.44 0.2645372455429.268min Comm. 43lc17994.pngch17994.jpgout17994.txt
44 USNO-A2 1275-1144083619 27 37.00, +43 51 09.8EB14.3614.76 0.6514052455503.178min Comm. 44lc01561.pngch01561.jpgout01561.txt
45 USNO-A2 1275-1147193019 28 25.99, +43 32 52.9EA13.1913.27 0.643734:2455429.035min  lc06863.pngch06863.jpgout06863.txt
46 USNO-A2 1275-1147960419 28 37.88, +42 17 28.0EW14.1814.46 0.3942152455499.937min  lc28310.pngch28310.jpgout28310.txt
47 USNO-A2 1275-1148364719 28 44.25, +41 48 56.2EW14.7515.16 0.2694242455484.944min  lc26463.pngch26463.jpgout26463.txt
48 USNO-A2 1275-1149253819 28 58.51, +43 23 52.6EA13.1613.25 0.4707502455441.152min Comm. 48lc09502.pngch09502.jpgout09502.txt
49 USNO-A2 1275-1149815919 29 07.40, +42 37 54.8BY:13.7413.86 1.132592455429.419max  lc23140.pngch23140.jpgout23140.txt
50 USNO-A2 1275-1149945119 29 09.57, +41 50 58.2EW15.0916.13 0.2947882455503.176min  lc27138.pngch27138.jpgout27138.txt
51 USNO-A2 1275-1150351219 29 15.88, +43 03 50.5EW15.7716.17 0.4016102455429.442min Comm. 51lc15408.pngch15408.jpgout15408.txt
52 USNO-A2 1275-1150928019 29 25.04, +41 44 32.9EA14.2514.49: 1.061882455429.046min Comm. 52lc24971.pngch24971.jpgout24971.txt
53 USNO-A2 1275-1151026719 29 26.61, +42 36 09.9LB:13.2313.58   other Comm. 53lc31935.pngch31935.jpgout31935.txt
54 USNO-A2 1275-1151301119 29 30.97, +41 54 02.0RRC14.6214.82 0.2731922455503.055max  lc27622.pngch27622.jpgout27622.txt
55 USNO-A2 1275-1151355319 29 31.85, +41 42 09.6EA15.5316.38 2.28694:2455429.866min  lc24163.pngch24163.jpgout24163.txt
56 USNO-A2 1275-1151541419 29 34.81, +41 50 53.8LB:12.0512.2   other Comm. 56lc27023.pngch27023.jpgout27023.txt
57 USNO-A2 1275-1151736219 29 38.01, +43 47 51.1EW13.2213.53 0.3991272455795.156min  lc02648.pngch02648.jpgout02648.txt
58 USNO-A2 1275-1151828019 29 39.52, +41 48 38.0DSCT14.0114.14 0.1658262455822.233max  lc26315.pngch26315.jpgout26315.txt
59 USNO-A2 1275-1151942819 29 41.28, +42 30 06.6EW14.8715.34 0.4534072455503.190min  lc30172.pngch30172.jpgout30172.txt
60 USNO-A2 1275-1152741019 29 53.62, +43 24 57.1EW14.6815.12 0.2692452455431.235min Comm. 60lc09298.pngch09298.jpgout09298.txt
61 USNO-A2 1275-1152962319 29 57.08, +43 18 43.7EA13.9314.09 0.7555142455448.094min Comm. 61lc11023.pngch11023.jpgout11023.txt
62 USNO-A2 1275-1154879219 30 27.41, +43 10 31.5EB13.99<14.65 0.5255742455499.912min Comm. 62lc13488.pngch13488.jpgout13488.txt
63 USNO-A2 1275-1156487219 30 52.33, +43 09 55.8LB14.0514.48   other Comm. 63lc13720.pngch13720.jpgout13720.txt
64 USNO-A2 1275-1157460019 31 07.28, +42 30 24.0BY:12.6212.75 1.357712455441.439max  lc29950.pngch29950.jpgout29950.txt

Comments:


1. USNO-A2.0: B=15m.5, R=13m.1.
2MASS: J=10m.018, H=9m.179, K=8m.823.

3. MinII=14m.93.

6. MinII=15m.24. Sligth O`Connell effect.

9. 2XMMi-DR3 Catalog: 2XMM J192008.4+435106, HR1=0.817, HR2=–0.233, HR3=–0.439, HR4=0.369.

11. MinII=14m.50.

12. USNO-A2.0: B=15m.3, R=13m.4.
2MASS: J=11m.009, H=10m.093, K=9m.897.

15. USNO-A2.0: B=14m.2, R=13m.2.
2MASS: J=11m.998, H=11m.513, K=11m.478.
The star shows no noticeable variability in NSVS data.

16. MinII=13m.64.

19. MinII=14m.80.

28. MinII=15m.11.

30. MinII=12m.74.

31. USNO-A2.0: B=15m.0, R=13m.8.
2MASS: J=12m.577, H=12m.021, K=11m.907.

33. The twice longer period with EW type is also not excluded.

35. USNO-A2.0: B=15m.0, R=13m.0.
2MASS: J=11m.669, H=11m.084, K=10m.919.

36. USNO-A2.0: B=14m.8, R=12m.5.
2MASS: J=9m.988, H=9m.057, K=8m.805.

40. USNO-A2.0: B=16m.2, R=14m.0.
2MASS: J=11m.224, H=10m.294, K=10m.070.

41. USNO-A2.0: B=14m.0, R=12m.1.
2MASS: J=8m.752, H=7m.844, K=7m.541.

42. A close pair of two stars.

43. MinII=15m.96.

44. MinII=14m.56.

48. MinII=13m.21.

51. The one-day alias, P = 0d.334285, is also possible.

52. MinII=14m.32.

53. USNO-A2.0: B=15m.0, R=13m.5.
2MASS: J=11m.832, H=11m.275, K=11m.186.

56. USNO-A2.0: B=14m.4, R=12m.3.
2MASS: J=9m.777, H=8m.844, K=8m.578.

60. MinII=15m.02.

61. MinII=13m.99. A close pair of two stars.

62. MinII=14m.20.

63. USNO-A2.0: B=16m.8, R=14m.6.
2MASS: J=11m.976, H=11m.115, K=10m.878.

Remarks:
Our observations of an area in Lyra (centered at α=19h25m.0, δ=42°47′ J2000.0) were performed in the observatory of the Siberian State Aerospace Univercity with a Hamilton telescope (D = 400 mm, F = 915 mm) equipped with an FLI ML9000 CCD chip (3056×3056 pixels, pixel size 12 μm). All our unfiltered CCD observations were obtained during two time intervals: August 21 – November 07, 2010 and August  21 – September 17, 2011. Exposure times of all frames were 30 seconds. The area of our CCD images is 2°.3 × 2°.3. The magnitudes were referred to red magnitudes of comparison stars from the USNO-A2.0 catalog (Monet et al. 1998). We used VaST (Sokolovsky and Lebedev, 2005) software to search for new variable stars. To determine periods, we applied WinEfk software created by Dr. V.P. Goranskij.

Acknowledgements: The authors wish to thanks Dr. V.P. Goranskij for providing his efficient period-search software and Dr. K.V. Sokolovsky for providing VaST (a software package for detection of variable objects on a series of astronomical images).

References:
Monet, D., Bird, A., Canzian, B., et al., 1998, USNO-A2.0, A Catalog of Astrometric Standards (U.S. Naval Observatory, Washington, DC), Centre de Donnees Astronomiques de Strasbourg, I/252
Sokolovsky, K., Lebedev, A., 2005, in 12th Young Scientists' Conference on Astronomy and Space Physics, Kyiv, Ukraine, April 19-23, 2005, eds.: Simon, A.; Golovin, A., p.79



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