2013AJ....145..113W

Query : 2013AJ....145..113W

2013AJ....145..113W - Astron. J., 145, 113 (2013/April-0)

Near-infrared periodic and other variable field stars in the field of the Cygnus OB7 star-forming region.

WOLK S.J., RICE T.S. and ASPIN C.A.

Abstract (from CDS):

We present a subset of the results of a three-season, 124 night, near-infrared monitoring campaign of the dark clouds Lynds 1003 and Lynds 1004 in the Cygnus OB7 star-forming region. In this paper, we focus on the field star population. Using three seasons of UKIRT J, H, and K-band observations spanning 1.5 years, we obtained high-quality photometry on 9200 stars down to J = 17 mag, with photometric uncertainty better than 0.04 mag. After excluding known disk-bearing stars we identify 149 variables–1.6% of the sample. Of these, about 60 are strictly periodic, with periods predominantly <2 days. We conclude this group is dominated by eclipsing binaries. A few stars have long period signals of between 20 and 60 days. About 25 stars have weak modulated signals, but it was not clear if these were periodic. Some of the stars in this group may be diskless young stellar objects with relatively large variability due to cool starspots. The remaining ∼60 stars showed variations which appear to be purely stochastic.

Abstract Copyright: ∼

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

VizieR on-line data: <Available at CDS (J/AJ/145/113): table3.dat table4.dat table5.dat>

Nomenclature: Tables 3-5: [WRA2013] JHHMMSS.ss+DDMMSS.s N=148, [WRA2013] JHHMMSS.sss+DDMMSS.s N=3.

CDS comments: HH 428 (p.2) is a misprint for HH 448.

Simbad objects: 171

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Number of rows : 171
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 NGC 1333 OpC 03 29 09.2 +31 20 59           ~ 1575 1
2 IC 348 OpC 03 44 31.1 +32 10 02           ~ 1476 1
3 V* AA Tau Or* 04 34 55.4201902392 +24 28 53.033624580 13.14 13.34 12.20 12.03   K5Ve 801 0
4 V* V1118 Ori TT* 05 34 44.7401295035 -05 33 42.119715628 15.053 15.378 14.430 15.22 12.701 M1e 153 0
5 NAME Orion Nebula Cluster OpC 05 35.0 -05 29           ~ 2514 0
6 NAME Ori A MoC 05 38 -07.1           ~ 3187 0
7 NAME sig Ori Cluster OpC 05 38 42 -02 36.0           ~ 623 0
8 NAME Orion Molecular Cloud MoC 05 56 -01.8           ~ 1227 1
9 V* W UMa SB* 09 43 45.4704536952 +55 57 09.061630668   8.54 7.75     G2Vn 686 0
10 NAME Cha 1 MoC 11 06 48 -77 18.0           ~ 1266 1
11 HD 325367 Or* 16 03 05.4915085848 -40 18 25.426727676   11.40 8.50     M0 406 0
12 NAME Northern Coalsack DNe 20 21 +37.0           ~ 124 0
13 NAME Cyg X Cld 20 30 04.7973633 +40 51 36.002197           ~ 962 1
14 NAME Cyg Complex reg 20 32 +45.0           ~ 667 0
15 IC 5070 HII 20 51.0 +44 22           ~ 218 1
16 2MASS J20573338+5202518 V*? 20 57 33.3918126048 +52 02 51.782511984           ~ 1 0
17 2MASS J20573381+5216571 V*? 20 57 33.8231693928 +52 16 57.125533764           ~ 1 0
18 ZTF J205740.60+523038.5 EB* 20 57 40.6225626504 +52 30 38.535878988           ~ 4 0
19 2MASS J20574254+5249224 EB* 20 57 42.5619809400 +52 49 22.159223868           ~ 1 0
20 2MASS J20574671+5203022 EB* 20 57 46.718 +52 03 02.26           ~ 1 0
21 2MASS J20574703+5243576 V*? 20 57 47.0457780240 +52 43 57.478663020           ~ 1 0
22 2MASS J20574781+5235245 V*? 20 57 47.8226084256 +52 35 24.628448652           ~ 1 0
23 2MASS J20574944+5236138 EB* 20 57 49.4558012352 +52 36 13.550042988           ~ 1 0
24 2MASS J20575041+5233279 EB* 20 57 50.4184598424 +52 33 28.023209028           ~ 1 0
25 2MASS J20575118+5231545 V*? 20 57 51.1957803312 +52 31 54.704368632           ~ 1 0
26 2MASS J20575199+5252338 * 20 57 51.9972565824 +52 52 33.652060248           ~ 2 0
27 ZTF J205756.91+524019.7 EB* 20 57 56.9158826640 +52 40 19.724488932           ~ 4 0
28 2MASS J20580145+5222373 EB* 20 58 01.4624208960 +52 22 37.174267452           ~ 1 0
29 ZTF J205801.69+522009.3 RS* 20 58 01.7023721760 +52 20 09.208786200     17.626 16.179 15.486 ~ 5 0
30 2MASS J20580828+5222243 V*? 20 58 08.2438997952 +52 22 24.294995220           ~ 1 0
31 [WRA2013] J205811.02+522653.4 V*? 20 58 11.0277825864 +52 26 53.404376892           ~ 1 0
32 ZTF J205814.04+524724.6 EB* 20 58 14.0578441152 +52 47 24.599241276           ~ 3 0
33 [WRA2013] J205815.20+525357.8 EB* 20 58 15.1885465320 +52 53 57.760436580           ~ 1 0
34 ATO J314.5706+52.7929 RS* 20 58 16.9561799184 +52 47 34.619898120           ~ 5 0
35 2MASS J20581883+5213073 V*? 20 58 18.8328324768 +52 13 07.391176644           ~ 1 0
36 2MASS J20581891+5210101 V*? 20 58 18.9246920376 +52 10 10.100686080           ~ 1 0
37 2MASS J20581912+5221406 V*? 20 58 19.1209975344 +52 21 40.631076576           ~ 1 0
38 [WRA2013] J205820.99+522300.8 EB* 20 58 20.9924774232 +52 23 00.779254332           ~ 1 0
39 2MASS J20582114+5254447 EB* 20 58 21.1660444488 +52 54 45.141582888           ~ 1 0
40 2MASS J20582207+5226479 V*? 20 58 22.0653051120 +52 26 47.888359620           ~ 1 0
41 2MASS J20582386+5220101 V*? 20 58 23.8637806608 +52 20 10.116280788           ~ 1 0
42 [WRA2013] J205824.90+523031.5 Pu* 20 58 24.906 +52 30 31.60           ~ 1 0
43 2MASS J20582571+5222484 EB* 20 58 25.717 +52 22 48.49           ~ 1 0
44 [WRA2013] J205827.49+523642.6 V*? 20 58 27.500 +52 36 42.68           ~ 1 0
45 2MASS J20582768+5218319 V*? 20 58 27.6689541888 +52 18 31.933245744           ~ 1 0
46 2MASS J20583077+5206390 V*? 20 58 30.7760457576 +52 06 38.881528812           ~ 1 0
47 2MASS J20583378+5230329 EB* 20 58 33.783 +52 30 32.93           ~ 1 0
48 2MASS J20583547+5242409 V*? 20 58 35.4764374872 +52 42 40.962775824           ~ 1 0
49 2MASS J20583574+5243530 V*? 20 58 35.7411284856 +52 43 53.088545820           ~ 1 0
50 [WRA2013] J205837.31+522808.2 V*? 20 58 37.314 +52 28 08.06           ~ 1 0
51 2MASS J20584160+5242458 V*? 20 58 41.6059307976 +52 42 45.843895836           ~ 1 0
52 2MASS J20584207+5220034 V*? 20 58 42.0715911384 +52 20 03.461183736           ~ 1 0
53 [WRA2013] J205842.87+524429.6 EB* 20 58 42.8725545360 +52 44 29.623818840           ~ 1 0
54 2MASS J20584499+5242588 V*? 20 58 45.0098084160 +52 42 58.928770296           ~ 1 0
55 ZTF J205846.45+522941.6 LP* 20 58 46.4659243560 +52 29 41.689226472           ~ 2 0
56 2MASS J20584694+5208233 V*? 20 58 46.9420337736 +52 08 23.472902688           ~ 1 0
57 NGC 7000 Cl* 20 58 47 +44 19.8           ~ 427 0
58 [WRA2013] J205847.02+524140.6 V*? 20 58 47.02 +52 41 40.6           ~ 1 0
59 [WRA2013] J205848.88+522231.6 V*? 20 58 48.881 +52 22 31.44           ~ 1 0
60 2MASS J20585255+5226235 EB* 20 58 52.5507395880 +52 26 23.499333600           ~ 1 0
61 2MASS J20585275+5219389 V*? 20 58 52.7681720568 +52 19 39.113460732           ~ 1 0
62 2MASS J20585314+5242466 V*? 20 58 53.1523636512 +52 42 46.771996140           ~ 1 0
63 2MASS J20590346+5202340 V*? 20 59 03.4564393056 +52 02 33.957844512           ~ 1 0
64 [WRA2013] J205904.29+523302.6 V*? 20 59 04.29 +52 33 02.6           ~ 1 0
65 2MASS J20590547+5207113 EB* 20 59 05.4664157256 +52 07 11.294482188           ~ 1 0
66 2MASS J20590811+5245316 EB* 20 59 08.1678153600 +52 45 31.670578800           ~ 1 0
67 2MASS J20591141+5246419 V*? 20 59 11.4164656584 +52 46 42.005909604           ~ 1 0
68 2MASS J20591216+5209421 V*? 20 59 12.1690868112 +52 09 42.093874800           ~ 1 0
69 [WRA2013] J205913.54+520359.1 V*? 20 59 13.523 +52 03 58.97           ~ 1 0
70 2MASS J20591412+5253304 EB* 20 59 14.125 +52 53 30.49           ~ 1 0
71 2MASS J20591774+5246123 V*? 20 59 17.7571174416 +52 46 12.376528356           ~ 1 0
72 2MASS J20592280+5223384 EB* 20 59 22.8065150976 +52 23 38.425159464           ~ 1 0
73 [WRA2013] J205922.91+523513.8 V*? 20 59 22.910 +52 35 13.75           ~ 1 0
74 2MASS J20592654+5252473 EB* 20 59 26.5323932424 +52 52 47.365054068           ~ 2 0
75 2MASS J20592855+5210101 V*? 20 59 28.5590823840 +52 10 10.434789408           ~ 1 0
76 2MASS J20592889+5245441 EB* 20 59 28.896 +52 45 44.16           ~ 1 0
77 2MASS J20593139+5228022 RR* 20 59 31.3913032320 +52 28 01.990581132           ~ 1 0
78 LDN 1003 DNe 20 59 32 +52 21.7           ~ 26 0
79 2MASS J20593227+5232475 V*? 20 59 32.2646579952 +52 32 47.309447904           ~ 1 0
80 2MASS J20593388+5210168 V*? 20 59 33.8788290336 +52 10 16.873870224           ~ 1 0
81 2MASS J20593689+5254108 EB* 20 59 36.9013089576 +52 54 11.035476000           ~ 1 0
82 2MASS J20593802+5217027 EB* 20 59 38.023 +52 17 02.73           ~ 1 0
83 2MASS J20593989+5203432 EB* 20 59 39.8908155216 +52 03 43.385269968           ~ 1 0
84 [WRA2013] J205941.00+522349.2 V*? 20 59 41.015 +52 23 49.36           ~ 1 0
85 [WRA2013] J205941.783+523910.2 V*? 20 59 41.790 +52 39 09.95           ~ 1 0
86 [WRA2013] J205942.46+523740.0 EB* 20 59 42.46 +52 37 40.0           ~ 1 0
87 ZTF J205945.68+520716.3 EB* 20 59 45.6829853328 +52 07 16.336282404           ~ 4 0
88 [WRA2013] J205949.14+520442.7 V*? 20 59 49.1280139968 +52 04 42.664705104           ~ 1 0
89 2MASS J20595101+5203480 EB* 20 59 51.0033149112 +52 03 48.177480384           ~ 1 0
90 ZTF J205953.46+520809.4 EB* 20 59 53.4785206560 +52 08 09.419272764           ~ 3 0
91 2MASS J20595653+5248442 EB* 20 59 56.5168852440 +52 48 44.326324980           ~ 1 0
92 [WRA2013] J205957.42+523857.2 V*? 20 59 57.428 +52 38 57.33           ~ 1 0
93 2MASS J20595970+5210430 V*? 20 59 59.7095890224 +52 10 43.227492348           ~ 1 0
94 2MASS J21000046+5224505 V*? 21 00 00.4576436208 +52 24 50.559247548           ~ 1 0
95 [WRA2013] J210001.78+522545.3 V*? 21 00 01.767 +52 25 45.30           ~ 1 0
96 [WRA2013] J210002.10+521726.1 V*? 21 00 02.110 +52 17 26.01           ~ 1 0
97 [WRA2013] J210013.31+520224.6 V*? 21 00 13.302 +52 02 24.69           ~ 1 0
98 2MASS J21001487+5214579 Em* 21 00 14.8798079112 +52 14 58.035776424           ~ 4 0
99 2MASS J21001500+5230058 V*? 21 00 15.0035339352 +52 30 06.029775792           ~ 1 0
100 2MASS J21001617+5247596 V*? 21 00 16.1720901888 +52 47 59.600097240           ~ 1 0
101 [WRA2013] J210019.16+522716.0 V*? 21 00 19.142 +52 27 15.90           ~ 1 0
102 2MASS J21002048+5231083 V*? 21 00 20.4824538816 +52 31 08.295292632           ~ 1 0
103 2MASS J21002251+5242537 V*? 21 00 22.5209978904 +52 42 53.766895536           ~ 1 0
104 2MASS J21002277+5207339 V*? 21 00 22.7943727176 +52 07 33.790039356           ~ 1 0
105 [WRA2013] J210023.12+520432.7 V*? 21 00 23.105 +52 04 32.94           ~ 1 0
106 2MASS J21002330+5242584 V*? 21 00 23.3023697616 +52 42 58.383644148           ~ 1 0
107 2MASS J21002348+5254182 V*? 21 00 23.4887443632 +52 54 18.259871184           ~ 1 0
108 2MASS J21002396+5242206 V*? 21 00 23.9547285744 +52 42 20.510888868           ~ 1 0
109 2MASS J21002939+5211476 EB* 21 00 29.395 +52 11 47.66           ~ 1 0
110 HH 448 HH 21 00 31.8 +52 29 17           ~ 19 0
111 2MASS J21003326+5214244 EB* 21 00 33.269 +52 14 24.40           ~ 1 0
112 [WRA2013] J210037.50+520704.1 V*? 21 00 37.50 +52 07 04.1           ~ 1 0
113 2MASS J21003756+5217538 EB* 21 00 37.5645397224 +52 17 53.993180364           ~ 2 0
114 [WRA2013] J210038.51+523146.1 EB* 21 00 38.51 +52 31 46.1           ~ 1 0
115 2MASS J21004227+5220105 Or* 21 00 42.2795169240 +52 20 10.705137936   18.220 17.310 15.760   ~ 6 0
116 2MASS J21004283+5246161 V*? 21 00 42.8356988784 +52 46 16.233657096           ~ 1 0
117 2MASS J21004381+5213019 EB* 21 00 43.818 +52 13 01.97           ~ 1 0
118 2MASS J21005121+5250355 EB* 21 00 51.2259089736 +52 50 35.375681724           ~ 1 0
119 2MASS J21005463+5232134 EB* 21 00 54.6188731464 +52 32 13.415078868           ~ 1 0
120 2MASS J21005893+5238107 EB* 21 00 58.9351418304 +52 38 10.742505504           ~ 1 0
121 2MASS J21010360+5220428 V*? 21 01 03.6020680200 +52 20 42.907098228           ~ 1 0
122 [WRA2013] J210106.83+520432.1 V*? 21 01 06.83 +52 04 32.1           ~ 1 0
123 ZTF J210107.02+522442.0 EB* 21 01 07.0279244040 +52 24 41.884857216           ~ 4 0
124 [WRA2013] J210113.48+520901.3 V*? 21 01 13.477 +52 09 01.20           ~ 1 0
125 2MASS J21012118+5243434 V*? 21 01 21.1812948984 +52 43 43.710087072           ~ 1 0
126 2MASS J21012250+5237516 EB* 21 01 22.5470100840 +52 37 51.911946912           ~ 1 0
127 [WRA2013] J210127.73+524255.8 EB* 21 01 27.7316761200 +52 42 55.856248020           ~ 1 0
128 LDN 1004 DNe 21 01.5 +52 22           ~ 19 0
129 2MASS J21013110+5247096 EB* 21 01 31.1326955544 +52 47 09.902051700           ~ 1 0
130 2MASS J21013426+5247413 V*? 21 01 34.2721901424 +52 47 41.175215412           ~ 1 0
131 2MASS J21013520+5209168 EB* 21 01 35.201 +52 09 16.80           ~ 1 0
132 ZTF J210136.22+522144.3 BY* 21 01 36.2237262984 +52 21 44.298222660           ~ 4 0
133 2MASS J21014162+5202179 V*? 21 01 41.6221541688 +52 02 17.821523508           ~ 1 0
134 ZTF J210145.38+524059.8 EB* 21 01 45.3862286424 +52 40 59.817749880           ~ 4 0
135 2MASS J21014980+5252360 EB* 21 01 49.7951875776 +52 52 35.791935564           ~ 2 0
136 [WRA2013] J210155.68+522659.6 V*? 21 01 55.688 +52 26 59.54           ~ 1 0
137 [WRA2013] J210157.61+520430.3 V*? 21 01 57.6122451408 +52 04 30.295382484           ~ 1 0
138 2MASS J21015879+5250417 EB* 21 01 58.8288052835 +52 50 41.414140191           ~ 1 0
139 [WRA2013] J210201.04+524313.8 EB* 21 02 01.0393146384 +52 43 13.668091464           ~ 1 0
140 2MASS J21020269+5239288 V*? 21 02 02.7058501008 +52 39 28.937792484           ~ 1 0
141 [WRA2013] J210205.76+522253.9 V*? 21 02 05.757 +52 22 53.87           ~ 1 0
142 [WRA2013] J210206.63+520731.0 V*? 21 02 06.631 +52 07 31.17           ~ 1 0
143 2MASS J21020978+5247293 EB* 21 02 09.7766983680 +52 47 29.270592132           ~ 1 0
144 [WRA2013] J210209.93+523135.4 EB* 21 02 09.93 +52 31 35.4           ~ 1 0
145 2MASS J21021669+5202199 V*? 21 02 16.7000556000 +52 02 19.993777728           ~ 1 0
146 2MASS J21021782+5207313 V*? 21 02 17.8144196616 +52 07 31.600284672           ~ 1 0
147 2MASS J21021828+5226084 EB* 21 02 18.2786850168 +52 26 08.295294012           ~ 2 0
148 2MASS J21021934+5204460 * 21 02 19.3436633952 +52 04 46.193767320           ~ 2 0
149 [WRA2013] J210222.239+524457.9 V*? 21 02 22.2405826752 +52 44 57.866543052           ~ 1 0
150 [WRA2013] J210223.06+525056.6 EB* 21 02 23.0501462928 +52 50 56.571374832           ~ 1 0
151 [WRA2013] J210223.22+524951.0 dS* 21 02 23.2242204600 +52 49 50.982305520           ~ 1 0
152 2MASS J21022500+5246138 EB* 21 02 24.9667046640 +52 46 13.894332996           ~ 1 0
153 2MASS J21023132+5211090 EB* 21 02 31.3031049984 +52 11 09.068051796           ~ 2 0
154 2MASS J21023421+5209337 V*? 21 02 34.2047793624 +52 09 33.902840700           ~ 1 0
155 ZTF J210235.58+524353.6 RS* 21 02 35.5877133144 +52 43 53.603833584           ~ 3 0
156 [WRA2013] J210240.50+524352.3 EB* 21 02 40.4998626792 +52 43 52.273718652           ~ 1 0
157 ATO J315.6691+52.5800 EB* 21 02 40.6023245784 +52 34 48.330622488           ~ 5 0
158 2MASS J21024491+5242513 EB* 21 02 44.9101071384 +52 42 51.256241640           ~ 1 0
159 2MASS J21030204+5253494 V*? 21 03 02.0674848792 +52 53 49.438638996           ~ 1 0
160 [WRA2013] J210305.18+525501.1 EB* 21 03 05.1730663536 +52 55 01.132349088           ~ 1 0
161 2MASS J21031080+5222044 EB* 21 03 10.7998982664 +52 22 04.286627076           ~ 1 0
162 [WRA2013] J210314.00+520337.9 V*? 21 03 13.995 +52 03 37.86           ~ 1 0
163 2MASS J21031492+5203584 V*? 21 03 14.9260979112 +52 03 58.806156780           ~ 1 0
164 2MASS J21031636+5214487 EB* 21 03 16.3881445848 +52 14 48.764342688           ~ 1 0
165 2MASS J21031791+5216377 V*? 21 03 17.9127594768 +52 16 37.904141352           ~ 1 0
166 2MASS J21031825+5217465 V*? 21 03 18.2666970168 +52 17 46.628174616           ~ 1 0
167 2MASS J21031841+5203368 V*? 21 03 18.4110467376 +52 03 37.149696792           ~ 1 0
168 2MASS J21031854+5215066 V*? 21 03 18.5609647272 +52 15 06.658797204           ~ 1 0
169 2MASS J21031972+5240260 EB* 21 03 19.725 +52 40 26.08           ~ 1 0
170 Ass Cyg OB 7 As* 21 08 +47.6           ~ 218 0
171 NAME Elephant Trunk Nebula MoC 21 36 +57.4           ~ 58 0

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