Peremennye Zvezdy

Article in PDF
"Peremennye Zvezdy",
Prilozhenie,
vol. 12, N 19 (2012)

New Variable Stars in Auriga: Area of 2°.3×2°.3, Centered at α=06h00m, δ=29°15′

E. G. Lapukhin#1, S. A. Veselkov#1, S. V. Antipin#2,3, N. N. Samus#3,2
#1. Siberian State Aerospace University, Krasnoyarsk, Russia;
#2. Sternberg Astronomical Institute, Lomonosov Moscow State University, Moscow, Russia;
#3. Institute of Astronomy, Russian Academy of Sciences, Moscow, Russia

ISSN 2221–0474

Received:   12.07.2012;   accepted:   5.12.2012
(E-mail for contact: slovoktk@mail.ru)

#NameOtherCoord (J2000)TypeMaxMinSystemPeriodEpoch (JD)typeSpCommentL.CurveFind.ChartData
1 USNO-A2 1200-0402212905 54 38.37, +30 04 24.1EB13.01<13.32 1.433882455589.905:min  lc31459.pngch31459.jpgout31459.txt
2 USNO-A2 1200-0404478405 55 23.18, +30 05 26.7DSCT13.0713.12 0.0842582455837.4367max  lc31068.pngch31068.jpgout31068.txt
3 USNO-A2 1125-0301309905 55 31.83, +28 21 28.4EW13.30<13.75 0.3225512455865.534:min Comm. 3lc06577.pngch06577.jpgout06577.txt
4 USNO-A2 1125-0301890405 55 44.43, +29 12 49.1EW13.1013.17 0.2653922455859.474min Comm. 4lc22982.pngch22982.jpgout22982.txt
5 USNO-A2 1125-0302521905 55 57.84, +28 50 33.3HADS14.9815.32 0.0897952455623.1051max  lc15972.pngch15972.jpgout15972.txt
6 USNO-A2 1200-0407469805 56 24.30, +30 03 58.1EW15.9616.32 0.4432362455590.336min Comm. 6lc31908.pngch31908.jpgout31908.txt
7 USNO-A2 1125-0304328705 56 35.88, +28 20 35.2EB15.9716.48 0.4098232455603.202min  lc06284.pngch06284.jpgout06284.txt
8 USNO-A2 1125-0304801005 56 46.14, +29 49 25.5EB14.2614.93 0.7329842455859.510min Comm. 8lc36625.pngch36625.jpgout36625.txt
9 USNO-A2 1125-0305332305 56 57.46, +29 47 07.7DSCT13.5313.58 0.0799482455603.1035max Comm. 9lc37663.pngch37663.jpgout37663.txt
10 USNO-A2 1125-0305394905 56 58.77, +28 41 08.4EW15.6816.00 0.3395832455622.974min Comm. 10lc12834.pngch12834.jpgout12834.txt
11 USNO-A2 1125-0306563005 57 22.78, +28 44 44.5EB14.2914.71 0.4098732455859.246min Comm. 11lc13643.pngch13643.jpgout13643.txt
12 USNO-A2 1125-0307393605 57 40.03, +29 22 50.2EW15.7716.24 0.3860962455626.219min Comm. 12lc30866.pngch30866.jpgout30866.txt
13 USNO-A2 1125-0307696805 57 46.12, +28 12 45.1RRC15.1315.38 0.2421932455603.067max Comm. 13lc03282.pngch03282.jpgout03282.txt
14 USNO-A2 1125-0309408205 58 20.22, +28 56 01.7LB12.1412.67   other Comm. 14lc17089.pngch17089.jpgout17089.txt
15 USNO-A2 1125-0309448105 58 20.99, +28 45 50.1LB:13.8914.03   other Comm. 15lc10509.pngch10509.jpgout10509.txt
16 USNO-A2 1125-0310929805 58 49.48, +28 40 19.2DSCT13.4013.46 0.1478902455859.3484max  lc12129.pngch12129.jpgout12129.txt
17 USNO-A2 1125-0311195705 58 54.45, +28 20 26.4EA12.8513.24 1.015002455859.790min Comm. 17lc05584.pngch05584.jpgout05584.txt
18 USNO-A2 1200-0415018705 59 03.93, +30 09 05.2LB12.9013.33   other Comm. 18lc28941.pngch28941.jpgout28941.txt
19 USNO-A2 1125-0312633105 59 20.86, +28 23 34.6DSCT14.6414.76 0.0834902455859.3338max  lc04935.pngch04935.jpgout04935.txt
20 USNO-A2 1125-0314882205 59 59.42, +29 26 42.9EA13.1713.63: 2.041332455623.531min Comm. 20lc30044.pngch30044.jpgout30044.txt
21 USNO-A2 1125-0315511406 00 10.17, +29 07 13.0EW15.5815.88 0.2954002455850.304min Comm. 21lc20412.pngch20412.jpgout20412.txt
22 USNO-A2 1125-0318776506 01 06.78, +28 58 21.2EW:12.0512.14 0.7781412455837.206min Comm. 22lc12976.pngch12976.jpgout12976.txt
23 USNO-A2 1125-0319672706 01 22.28, +29 33 21.5EB14.8115.02 0.6403192455590.239min  lc40507.pngch40507.jpgout40507.txt
24 USNO-A2 1125-0319814206 01 24.83, +29 21 21.6EB:13.7113.87 0.7885512455590.380min  lc24572.pngch24572.jpgout24572.txt
25 USNO-A2 1125-0319931106 01 26.83, +28 11 36.8EW14.1014.22 0.3727602455626.201min Comm. 25lc02153.pngch02153.jpgout02153.txt
26 USNO-A2 1125-0320068206 01 29.31, +29 27 45.9DSCT12.9913.03 0.0746452455623.0635max  lc29904.pngch29904.jpgout29904.txt
27 USNO-A2 1125-0320576506 01 38.36, +28 14 53.6EA14.5915.14 2.20781:2455603.344min Comm. 27lc03107.pngch03107.jpgout03107.txt
28 USNO-A2 1125-0321932106 02 02.42, +28 14 51.0LB13.0013.43   other Comm. 28lc03055.pngch03055.jpgout03055.txt
29 USNO-A2 1125-0322385306 02 10.49, +28 28 19.3LB14.7114.89   other Comm. 29lc07542.pngch07542.jpgout07542.txt
30 USNO-A2 1125-0322903506 02 19.62, +28 57 48.3BY:12.4612.51 6.39:2455606.3max  lc16943.pngch16943.jpgout16943.txt
31 USNO-A2 1125-0323486606 02 29.54, +29 31 34.2EA14.4114.56 0.7711782455623.037min Comm. 31lc35236.pngch35236.jpgout35236.txt
32 USNO-A2 1200-0424871706 02 46.28, +30 12 00.7EW15.5316.06: 0.4526282455859.696:min Comm. 32lc28705.pngch28705.jpgout28705.txt
33 USNO-A2 1125-0324834906 02 52.84, +28 25 13.9EW14.6914.89 0.3119542455865.368min  lc06479.pngch06479.jpgout06479.txt
34 USNO-A2 1125-0325424506 03 03.01, +29 35 27.1EA:14.7815.09 0.7649702455850.189min  lc33638.pngch33638.jpgout33638.txt
35 USNO-A2 1200-0425713606 03 06.08, +30 01 00.6LB13.2513.40   other Comm. 35lc33321.pngch33321.jpgout33321.txt
36 USNO-A2 1200-0426135206 03 16.40, +30 09 17.0LB12.2012.25   other Comm. 36lc23189.pngch23189.jpgout23189.txt
37 USNO-A2 1125-0326428806 03 19.70, +28 09 24.6EW12.7512.91 0.3949452455859.526min Comm. 37lc00859.pngch00859.jpgout00859.txt
38 USNO-A2 1200-0426338806 03 21.16, +30 10 05.3EB13.7414.15 0.6353262455590.071min Comm. 38lc31076.pngch31076.jpgout31076.txt
39 USNO-A2 1200-0426353806 03 21.48, +30 18 16.4DSCT13.2713.33 0.1281932455859.3551max Comm. 39lc27058.pngch27058.jpgout27058.txt
40 USNO-A2 1125-0326655906 03 23.47, +28 45 15.6BY:13.1113.20 0.9746802455618.058max Comm. 40lc12859.pngch12859.jpgout12859.txt
41 USNO-A2 1125-0326808606 03 25.98, +29 06 02.0DSCT14.3014.43 0.1022002455590.1185max  lc19307.pngch19307.jpgout19307.txt
42 USNO-A2 1125-0327554106 03 38.15, +28 19 58.9EW14.7915.12: 0.3329392455623.140:min Comm. 42lc04644.pngch04644.jpgout04644.txt
43 USNO-A2 1125-0328718506 03 57.55, +28 49 37.2EW16.0516.60 0.3613812455590.111min Comm. 43lc14265.pngch14265.jpgout14265.txt
44 USNO-A2 1200-0427942706 04 00.46, +30 07 45.1BY:13.8114.05 2.82452455603.71max Comm. 44lc31809.pngch31809.jpgout31809.txt
45 USNO-A2 1125-0330465806 04 26.20, +28 57 45.1EW13.4513.56 0.3815142455859.224min  lc16583.pngch16583.jpgout16583.txt

Comments:


3. P = 0d.3409505 is also possible.

4. MinII = 13m.15. B = 13.8, R = 13.1 (USNO-A2.0). DSCT type with P = 0d.132695 is possible.

6. MinII = 16m.3. P = 0d.362922 is also possible.

8. MinII = 14m.54.

9. The one-day alias, P = 0d.086921, is also possible.

10. MinII = 15m.77.

11. MinII = 14m.42.

12. MinII = 16m.2.

13. The one-day alias, P = 0d.195018, is also possible.

14. B = 17.0, R = 14.0 (USNO-A2.0). J = 7.249, H = 6.149, K = 5.660 (2MASS).

15. B = 15.7, R = 13.5 (USNO-A2.0). J = 11.737, H = 11.124, K = 10.877 (2MASS).

17. MinII = 12m.93.

18. The star in the NSVS database: NSVS ID 7023650 and NSVS ID 7008698. The NSVS data confirm the star's type.
B = 17.5, R = 14.4 (USNO-A2.0). J = 8.456, H = 7.391, K = 6.934 (2MASS).

20. MinII = 13m.46.

21. MinII = 15m.85.

22. The star in the NSVS database: NSVS ID 7075110. The NSVS data confirm the star's type and period.

25. MinII = 14m.2.

27. P = 2d.20781 is one of several possible periods. Additional CCD observations are needed to choose the true period.

28. B = 16.4, R = 13.9 (USNO-A2.0). J = 9.155, H = 8.111, K = 7.676 (2MASS).

29. X-ray source 1RXS J060210.7+282821, HR1 = 1.0, HR2 = 0.57, distanse 3".53.
B = 14.6, R = 13.4 (USNO-A2.0). J = 12.231, H = 11.222, K = 10.140 (2MASS).

31. MinII = 14m.52.

32. MinII = 15m.9.

35. B = 14.0, R = 12.2 (USNO-A2.0). J = 10.265, H = 9.144, K = 8.783 (2MASS).

36. The star in the NSVS database: NSVS ID 7014088. The NSVS data confirm the star's type.
B = 15.1, R = 12.6 (USNO-A2.0). J = 8.741, H = 7.615, K = 7.250 (2MASS).

37. MinII = 12m.91.

38. MinII = 14m.06, slight O'Connell effect.

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

40. J = 10.405, H = 9.466, K = 9.220 (2MASS).

42. MinII = 15m.07.

43. MinII = 16m.45.

44. B = 17.2, R = 14.3 (USNO-A2.0). J = 10.042, H = 8.827, K = 8.444 (2MASS).

Remarks:
Our observations of an area in Auriga were performed in the observatory of the Siberian State Aerospace University with a Hamilton telescope (D = 400 mm, F = 915 mm) equipped with an FLI ML9000 CCD chip (3056x3056 pixels, pixel size 12 μm). We obtained all unfiltered CCD observations during two time intervals: January 2011 – March 2011 and October 2011. Exposure times were 30 seconds for all frames. The size of the field 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 & Lebedev 2005) software to search for new variable stars. To find periods, we applied WinEfk software provided by Dr. V.P. Goranskij. Observations for several stars can also be found in the ROTSE-I/NSVS survey (Wozniak et al. 2004).

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). This publication makes use of data products from the Two Micron All Sky Survey, which is a joint project of the UMass/IPAC-Caltech, funded by the NASA and the NSF, and the Aladin interactive sky atlas, operated at CDS, Strasbourg, France.

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 Données 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
Wozniak, P.R., Vestrand, W.T., Akerlof, C.W., et al., 2004, Astron. J., 127, 2436


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