Journal "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;

ISSN 2221–0474

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

#	Other	Coord (J2000)	Type	Max	Min	Period	Epoch (JD)	type	Comment	L.Curve	Find.Chart	Data
1	USNO-A2 1275-11136370	19 19 09.11, +42 22 06.5	LB:	12.70	12.90			other	Comm. 1	lc29112.png	ch29112.jpg	out29112.txt
2	USNO-A2 1275-11137831	19 19 11.70, +43 19 18.4	BY	13.04	13.32	15.911	2455486.7	max		lc09619.png	ch09619.jpg	out09619.txt
3	USNO-A2 1275-11143146	19 19 21.08, +43 21 55.0	EB	14.81	15.05	0.770681	2455429.114	min	Comm. 3	lc08943.png	ch08943.jpg	out08943.txt
4	USNO-A2 1275-11147291	19 19 28.31, +42 37 52.7	EW	15.87	16.38	0.269030	2455485.031	min		lc22002.png	ch22002.jpg	out22002.txt
5	USNO-A2 1275-11147296	19 19 28.32, +42 05 39.3	RRC	15.49	15.82	0.291403	2455500.001	max		lc37171.png	ch37171.jpg	out37171.txt
6	USNO-A2 1275-11148370	19 19 30.15, +43 47 23.5	EW	14.58	15.39	0.267018	2455500.086	min	Comm. 6	lc01645.png	ch01645.jpg	out01645.txt
7	USNO-A2 1275-11155084	19 19 41.66, +43 13 09.1	EW	13.90	14.19	0.486717	2455429.337	min		lc11512.png	ch11512.jpg	out11512.txt
8	USNO-A2 1275-11156903	19 19 44.74, +43 09 26.7	EW	14.07	14.34	0.356624	2455499.934	min		lc12630.png	ch12630.jpg	out12630.txt
9	USNO-A2 1275-11170856	19 20 08.36, +43 51 12.3	EW	15.51	16.01	0.274483	2455429.350	min	Comm. 9	lc00684.png	ch00684.jpg	out00684.txt
10	USNO-A2 1275-11172043	19 20 10.39, +43 42 55.3	RRC	14.24	14.76	0.275345	2455485.033	max		lc03041.png	ch03041.jpg	out03041.txt
11	USNO-A2 1275-11176333	19 20 17.52, +42 51 40.9	EA	14.32	14.85	0.581320	2455429.297	min	Comm. 11	lc17920.png	ch17920.jpg	out17920.txt
12	USNO-A2 1275-11179205	19 20 22.28, +41 49 24.5	SR:	12.82	12.95	40.9	2455487	max	Comm. 12	lc32237.png	ch32237.jpg	out32237.txt
13	USNO-A2 1275-11181148	19 20 25.52, +42 46 26.0	EW	13.90	14.39	0.488515	2455438.161	min		lc19529.png	ch19529.jpg	out19529.txt
14	USNO-A2 1275-11195859	19 20 49.17, +42 25 51.0	RRC	15.25	15.73	0.302252	2455500.000	max		lc29772.png	ch29772.jpg	out29772.txt
15	USNO-A2 1275-11198092	19 20 52.74, +41 38 25.0	L:	12.75	13.61			other	Comm. 15	lc24035.png	ch24035.jpg	out24035.txt
16	USNO-A2 1275-11199489	19 20 55.00, +42 36 07.2	EW	13.05	13.77	0.356433	2455429.313	min	Comm. 16	lc22703.png	ch22703.jpg	out22703.txt
17	USNO-A2 1275-11201916	19 20 58.84, +42 09 19.3	EW	15.73	16.30	0.327233	2455438.371	min		lc37492.png	ch37492.jpg	out37492.txt
18	USNO-A2 1275-11208348	19 21 09.36, +42 10 54.5	DSCT	13.24	13.39	0.150781	2455500.002	max		lc38320.png	ch38320.jpg	out38320.txt
19	USNO-A2 1275-11208582	19 21 09.73, +42 58 58.1	EA	14.70	15.23	0.799162	2455467.448	min	Comm. 19	lc15922.png	ch15922.jpg	out15922.txt
20	USNO-A2 1275-11223914	19 21 35.36, +42 43 13.6	EW	14.13	14.26	0.541313	2455603.633	min		lc20659.png	ch20659.jpg	out20659.txt
21	USNO-A2 1275-11227284	19 21 41.20, +42 04 10.1	EW:	14.07	< 14.39	0.33131:	2455819.183	min		lc36657.png	ch36657.jpg	out36657.txt
22	USNO-A2 1275-11231733	19 21 49.08, +41 52 34.0	EW	14.94	15.64	0.371054	2455822.161	min		lc33204.png	ch33204.jpg	out33204.txt
23	USNO-A2 1275-11233880	19 21 52.83, +41 49 23.1	EW	12.99	13.45	0.448554	2455467.094	min		lc27528.png	ch27528.jpg	out27528.txt
24	USNO-A2 1275-11238358	19 22 00.71, +41 45 50.3	EW	15.56	16.07	0.301801	2455485.089	min		lc26339.png	ch26339.jpg	out26339.txt
25	USNO-A2 1275-11247417	19 22 16.70, +41 57 32.8	EW	15.38	15.70	0.422785	2455503.214	min		lc34594.png	ch34594.jpg	out34594.txt
26	USNO-A2 1275-11249328	19 22 20.06, +42 50 21.2	EW	13.46	13.69	0.406477	2455485.152	min		lc18590.png	ch18590.jpg	out18590.txt
27	USNO-A2 1275-11250248	19 22 21.57, +43 29 44.1	BY:	14.38	14.62	0.938045	2455484.911	max		lc07110.png	ch07110.jpg	out07110.txt
28	USNO-A2 1275-11255237	19 22 30.29, +43 10 29.3	EA	15.01	15.48	0.615817	2455467.374	min	Comm. 28	lc12745.png	ch12745.jpg	out12745.txt
29	USNO-A2 1275-11257822	19 22 34.87, +42 47 52.0	EA	14.36	14.72	0.88435	2455484.807	min		lc19388.png	ch19388.jpg	out19388.txt
30	USNO-A2 1275-11303138	19 23 52.88, +43 00 50.8	EA	12.65	<12.8	1.48979	2455483.568	min	Comm. 30	lc15702.png	ch15702.jpg	out15702.txt
31	USNO-A2 1275-11313504	19 24 10.54, +42 07 42.5	BY	13.86	14.12	12.76	2455503.101	max	Comm. 31	lc37415.png	ch37415.jpg	out37415.txt
32	USNO-A2 1275-11320279	19 24 21.81, +42 29 57.4	EW	15.18	15.80	0.346964	2455429.144	min		lc30556.png	ch30556.jpg	out30556.txt
33	USNO-A2 1275-11330419	19 24 38.55, +43 14 16.5	DSCT	14.37	14.47	0.130665	2455429.228	max	Comm. 33	lc11116.png	ch11116.jpg	out11116.txt
34	USNO-A2 1275-11356394	19 25 21.98, +43 17 22.8	EW:	14.39	14.49	0.422232:	2455802.169	min		lc11077.png	ch11077.jpg	out11077.txt
35	USNO-A2 1275-11356658	19 25 22.43, +42 19 48.2	SR:	12.61	12.85	85.6	2455438	max	Comm. 35	lc40253.png	ch40253.jpg	out40253.txt
36	USNO-A2 1275-11359601	19 25 27.25, +41 59 51.0	LB:	12.09	12.28			other	Comm. 36	lc34645.png	ch34645.jpg	out34645.txt
37	USNO-A2 1275-11380270	19 26 01.08, +43 00 44.3	EW	11.70	11.80	0.438117	2455499.945	min		lc15887.png	ch15887.jpg	out15887.txt
38	USNO-A2 1275-11386799	19 26 11.50, +43 26 01.2	BY:	12.15	12.24	4.938:	2455441.323	max		lc08631.png	ch08631.jpg	out08631.txt
39	USNO-A2 1275-11393577	19 26 22.26, +42 34 11.0	EW	15.72	16.01	0.296452	2455429.586	min		lc31855.png	ch31855.jpg	out31855.txt
40	USNO-A2 1275-11402135	19 26 35.99, +42 10 06.1	LB:	13.37	13.93			other	Comm. 40	lc37771.png	ch37771.jpg	out37771.txt
41	USNO-A2 1275-11411324	19 26 50.68, +42 05 27.5	LB:	11.23	11.44			other	Comm. 41	lc36317.png	ch36317.jpg	out36317.txt
42	USNO-A2 1275-11412325	19 26 52.28, +43 01 29.3	EW	14.42	14.7	0.364556	2455438.173	min	Comm. 42	lc15859.png	ch15859.jpg	out15859.txt
43	USNO-A2 1275-11437717	19 27 32.17, +42 54 37.6	EA	15.65	16.44	0.264537	2455429.268	min	Comm. 43	lc17994.png	ch17994.jpg	out17994.txt
44	USNO-A2 1275-11440836	19 27 37.00, +43 51 09.8	EB	14.36	14.76	0.651405	2455503.178	min	Comm. 44	lc01561.png	ch01561.jpg	out01561.txt
45	USNO-A2 1275-11471930	19 28 25.99, +43 32 52.9	EA	13.19	13.27	0.643734:	2455429.035	min		lc06863.png	ch06863.jpg	out06863.txt
46	USNO-A2 1275-11479604	19 28 37.88, +42 17 28.0	EW	14.18	14.46	0.394215	2455499.937	min		lc28310.png	ch28310.jpg	out28310.txt
47	USNO-A2 1275-11483647	19 28 44.25, +41 48 56.2	EW	14.75	15.16	0.269424	2455484.944	min		lc26463.png	ch26463.jpg	out26463.txt
48	USNO-A2 1275-11492538	19 28 58.51, +43 23 52.6	EA	13.16	13.25	0.470750	2455441.152	min	Comm. 48	lc09502.png	ch09502.jpg	out09502.txt
49	USNO-A2 1275-11498159	19 29 07.40, +42 37 54.8	BY:	13.74	13.86	1.13259	2455429.419	max		lc23140.png	ch23140.jpg	out23140.txt
50	USNO-A2 1275-11499451	19 29 09.57, +41 50 58.2	EW	15.09	16.13	0.294788	2455503.176	min		lc27138.png	ch27138.jpg	out27138.txt
51	USNO-A2 1275-11503512	19 29 15.88, +43 03 50.5	EW	15.77	16.17	0.401610	2455429.442	min	Comm. 51	lc15408.png	ch15408.jpg	out15408.txt
52	USNO-A2 1275-11509280	19 29 25.04, +41 44 32.9	EA	14.25	14.49:	1.06188	2455429.046	min	Comm. 52	lc24971.png	ch24971.jpg	out24971.txt
53	USNO-A2 1275-11510267	19 29 26.61, +42 36 09.9	LB:	13.23	13.58			other	Comm. 53	lc31935.png	ch31935.jpg	out31935.txt
54	USNO-A2 1275-11513011	19 29 30.97, +41 54 02.0	RRC	14.62	14.82	0.273192	2455503.055	max		lc27622.png	ch27622.jpg	out27622.txt
55	USNO-A2 1275-11513553	19 29 31.85, +41 42 09.6	EA	15.53	16.38	2.28694:	2455429.866	min		lc24163.png	ch24163.jpg	out24163.txt
56	USNO-A2 1275-11515414	19 29 34.81, +41 50 53.8	LB:	12.05	12.2			other	Comm. 56	lc27023.png	ch27023.jpg	out27023.txt
57	USNO-A2 1275-11517362	19 29 38.01, +43 47 51.1	EW	13.22	13.53	0.399127	2455795.156	min		lc02648.png	ch02648.jpg	out02648.txt
58	USNO-A2 1275-11518280	19 29 39.52, +41 48 38.0	DSCT	14.01	14.14	0.165826	2455822.233	max		lc26315.png	ch26315.jpg	out26315.txt
59	USNO-A2 1275-11519428	19 29 41.28, +42 30 06.6	EW	14.87	15.34	0.453407	2455503.190	min		lc30172.png	ch30172.jpg	out30172.txt
60	USNO-A2 1275-11527410	19 29 53.62, +43 24 57.1	EW	14.68	15.12	0.269245	2455431.235	min	Comm. 60	lc09298.png	ch09298.jpg	out09298.txt
61	USNO-A2 1275-11529623	19 29 57.08, +43 18 43.7	EA	13.93	14.09	0.755514	2455448.094	min	Comm. 61	lc11023.png	ch11023.jpg	out11023.txt
62	USNO-A2 1275-11548792	19 30 27.41, +43 10 31.5	EB	13.99	<14.65	0.525574	2455499.912	min	Comm. 62	lc13488.png	ch13488.jpg	out13488.txt
63	USNO-A2 1275-11564872	19 30 52.33, +43 09 55.8	LB	14.05	14.48			other	Comm. 63	lc13720.png	ch13720.jpg	out13720.txt
64	USNO-A2 1275-11574600	19 31 07.28, +42 30 24.0	BY:	12.62	12.75	1.35771	2455441.439	max		lc29950.png	ch29950.jpg	out29950.txt

Comments:

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

3. MinII=14^m.93.

6. MinII=15^m.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=14^m.50.

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

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

16. MinII=13^m.64.

19. MinII=14^m.80.

28. MinII=15^m.11.

30. MinII=12^m.74.

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

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

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

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

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

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

42. A close pair of two stars.

43. MinII=15^m.96.

44. MinII=14^m.56.

48. MinII=13^m.21.

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

52. MinII=14^m.32.

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

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

60. MinII=15^m.02.

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

62. MinII=14^m.20.

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

Remarks:
Our observations of an area in Lyra (centered at α=19^h25^m.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

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;