2016AJ....151..168K

Query : 2016AJ....151..168K

2016AJ....151..168K - Astron. J., 151, 168-168 (2016/June-0)

Multi-filter light curves of 29 very short period candidate contact binaries.

KOEN C., KOEN T. and GRAY R.O.

Abstract (from CDS):

Light curves of 26 probable contact binary stars are made available, from a list of candidates with the shortest periods known. This is supplemented by sets of light curves of three previously studied systems. Photometry was obtained in the Johnson UBV, Cousins RI system. All stars but one were observed in four wavebands, either UBV RC or {BV}{({RI})}_{C} , depending on brightness. Tentative spectral classifications are given for 23 of the stars. Effective temperatures are derived from infrared and optical photometric indices, and from spectral types. These are generally in good agreement. The multicolor photometry, spectral typing, and estimated effective temperatures can be used to model these systems in detail. A preliminary study, based on Fourier coefficients of the light curves, suggests that all the systems are indeed eclipsing stars, with all but a handful probably in contact configurations.

Abstract Copyright: © 2016. The American Astronomical Society. All rights reserved.

Journal keyword(s): binaries: eclipsing - stars: variables: general

CDS comments: 1SWASP J234401.81-230232.3 is a misprint for 1SWASP J234401.81-212229.1. 2MASS J11560563-0912573 = 2MASS J11560562-0912573.

Simbad objects: 50

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Number of rows : 50
N Identifier Otype ICRS (J2000)
RA 		ICRS (J2000)
DEC 		Mag U Mag B Mag V Mag R Mag I Sp type #ref
1850 - 2026 		#notes
1 1SWASP J000437.82+033301.2 EB* 00 04 37.8402415152 +03 33 01.142186688     14.53     ~ 10 0
2 1SWASP J004050.63+071613.9 EB* 00 40 50.6720557152 +07 16 13.733691996 13.04 12.90 12.18 11.76 11.30 ~ 9 0
3 LSPM J0220+3320 ** 02 20 50.850720 +33 20 47.55228   14.86 13.37 12.98 10.98 M2e 52 0
4 V* DS Ari EB* 02 27 26.3810090232 +11 56 49.486416864   16.650 15.11 15.010   ~ 20 0
5 1SWASP J022727.03+115641.7 * 02 27 27.0423002160 +11 56 41.618368788     14.95     ~ 7 1
6 1SWASP J030749.87-365201.7 EB* 03 07 49.9296035472 -36 52 02.123347944           ~ 12 0
7 1SWASP J034439.97+030425.5 EB* 03 44 39.9789998856 +03 04 25.420918476     13.79     ~ 12 0
8 1SWASP J040615.79-425002.3 EB* 04 06 15.8287303944 -42 50 02.335399800     14.14     ~ 9 0
9 1SWASP J041120.40-230232.3 EB* 04 11 20.5977050664 -23 02 33.149614848     13.95     ~ 8 0
10 1SWASP J041655.13-492709.8 EB* 04 16 55.1549361696 -49 27 09.807210252     15.04     ~ 6 0
11 ASAS J050905-0741.7 EB* 05 09 04.4454771192 -07 41 44.254513500   14.28 13.30 13.29   ~ 18 0
12 1SWASP J051501.18-021948.7 EB* 05 15 01.1166177072 -02 19 50.444335632     14.53 14.346 13.747 ~ 10 0
13 ASAS J052037+0304.1 EB* 05 20 36.8482214256 +03 04 02.284200912     12.35     ~ 8 0
14 1SWASP J055416.98+442534.0 EB* 05 54 17.0161527735 +44 25 34.076373148           ~ 26 1
15 1SWASP J074658.62+224448.5 EB* 07 46 58.6433536080 +22 44 48.244280604     14.13     ~ 28 0
16 1SWASP J080150.03+471433.8 EB* 08 01 50.0297088792 +47 14 33.429534972     13.40     ~ 30 0
17 StKM 1-704 ** 08 31 27.877776 +19 53 03.50628   11.52 10.38 10.04 9.125 K4 45 0
18 1SWASP J092754.99-391053.4 EB* 09 27 54.9453451392 -39 10 52.817817828     12.01     ~ 5 0
19 1SWASP J092756.25-391119.2 EB? 09 27 56.25 -39 11 19.2     11.77     ~ 3 0
20 CD-39 7036 ** 11 19 31.4887587277 -39 50 48.376232939   11.51 11.02     G6V+G6V 10 0
21 1SWASP J114929.22-423049.0 EB* 11 49 29.1970502328 -42 30 48.922377264   15.56 14.33 13.48 12.67 ~ 7 0
22 ZTF J115605.58-091257.0 EB* 11 56 05.6291725440 -09 12 57.385872180           ~ 3 0
23 TYC 5518-774-1 EB? 11 56 05.8865933232 -09 13 00.747808752   12.65 12.22     ~ 4 0
24 1SWASP J120110.98-220210.8 EB* 12 01 10.9716789168 -22 02 10.740845796   16.13 15.01 14.32 13.72 ~ 7 0
25 V* CC Com SB* 12 12 06.0378799056 +22 31 58.682832024   13.09 11.42 10.543 10.085 K4/5V 228 0
26 1SWASP J121906.35-240056.9 EB* 12 19 06.3292423176 -24 00 56.956266828     15.25     ~ 11 0
27 TYC 895-616-1 EB* 13 31 05.8411652424 +12 15 38.395607292   11.74 10.667 10.56   K3 25 0
28 ATO J215.8025-22.4070 EB? 14 23 12.6202307568 -22 24 25.281423648     13.19     ~ 7 0
29 1SWASP J150822.80-054236.9 EB* 15 08 22.7872590552 -05 42 36.898208784     12.45 12.306   ~ 23 0
30 1SWASP J151652.90+004835.8 EB? 15 16 52.8660683328 +00 48 35.557232436     13.97     ~ 4 0
31 FASTT 631 EB* 15 16 54.5374052064 +00 48 26.420749164     14.61     ~ 11 0
32 1SWASP J155822.10-025604.8 EB* 15 58 22.0970365128 -02 56 04.862017716   14.870 13.87     ~ 17 0
33 1SWASP J160156.04+202821.6 EB* 16 01 56.0393264112 +20 28 21.535058244     13.81     ~ 30 0
34 1SWASP J161334.28-284706.7 EB? 16 13 34.2875336304 -28 47 06.727284348     12.43     ~ 4 0
35 1RXS J161336.5-284722 EB* 16 13 35.7851998176 -28 47 22.592348520     12.55     ~ 14 0
36 ROTSE1 J170240.11+151122.7 EB* 17 02 40.0602010104 +15 11 23.473735728     13.56     ~ 14 0
37 ATO J264.6185+11.1973 EB* 17 38 28.46 +11 11 50.5     13.80     ~ 10 0
38 V* V1067 Her EB* 17 43 10.9789967640 +43 27 09.456982380   13.359 13.513 12.889 11.663 K1 48 0
39 V* V1104 Her EB* 18 09 47.6414646096 +49 02 54.991909536   14.0 13.51 13.560   M0 44 0
40 ATO J299.7514-25.4563 EB* 19 59 00.3326992861 -25 27 22.997672687     14.64     ~ 8 0
41 1SWASP J210318.76+021002.2 EB? 21 03 18.7650640032 +02 10 02.175300984     13.00     ~ 10 0
42 CRTS J210319.9+020933 EB* 21 03 19.9759061856 +02 09 33.934561524     15.31     ~ 11 0
43 UCAC4 488-136818 dS* 21 04 23.5766263910 +07 31 41.941988590   14.990 13.960 13.960   ~ 5 0
44 ATO J316.1002+07.5273 EB* 21 04 24.0426219504 +07 31 38.081677944           ~ 8 0
45 LAMOST J212454.52+203030.4 EB* 21 24 54.5335262249 +20 30 30.359443029     14.35     ~ 13 0
46 CRTS J212808.8+151622 EB* 21 28 08.8584368496 +15 16 21.937443456   16.108 14.49     ~ 25 0
47 CRTS J224747.1-351850 EB* 22 47 47.2057185336 -35 18 49.732010532     13.89     ~ 8 0
48 1SWASP J232607.07-294130.7 EB? 23 26 07.0593509117 -29 41 31.109600153     13.71     ~ 4 0
49 1SWASP J232610.13-294146.6 EB* 23 26 10.1235658632 -29 41 47.074773408     13.58     ~ 10 0
50 StKM 1-2148 SB* 23 44 01.8132261120 -21 22 29.099158536   12.84 11.70 11.50   K4 19 0

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