2019MNRAS.484.1800S

Query : 2019MNRAS.484.1800S

2019MNRAS.484.1800S - Mon. Not. R. Astron. Soc., 484, 1800-1814 (2019/April-1)

The young star population of Lynds 1188.

SZEGEDI-ELEK E., KUN M., MOOR A., MARTON G. and REIPURTH B.

Abstract (from CDS):

We present new results on the young star population of the Lynds 1188 molecular cloud, which is associated with the Cepheus Bubble, a giant interstellar shell around the association Cep OB 2. In order to reveal the star-forming scenario of the molecular cloud located on the supershell, and to understand the history of star formation in the region, we identified and characterized young star candidates based on an Hα emission survey and various published photometric data sets. Using Gaia Data Release 2 astrometry, we studied the spatial distribution of the young star candidates and we isolated three groups based on their distances. We constructed spectral energy distributions of our target stars, based on photometric data from the Panoramic Survey Telescope and Rapid Response System (Pan-STARRS), the Two-Micron All-Sky Survey (2MASS), the Spitzer Space Telescope and the Wide-field Infrared Survey Explorer (WISE), estimating their spectral types, extinctions and luminosities. We estimated masses by means of pre-main-sequence evolutionary models, and we derived accretion rates from the equivalent width of the Hα line. We studied the structure of the cloud by constructing a new extinction map, based on Pan-STARRS data. Our results show that the distribution of low-mass young stars in L1188 is well correlated with that of the dust and molecular gas. We identified two small, compact clusters and a loose aggregate of young stars. We found that star formation in L1188 started about 5 Myr ago. The apparent age gradient of young stars across the cloud and the ammonia cores located to the east of the optically visible young stellar groups support the scenario of star formation propagating away from the centre of the Cepheus Bubble.

Abstract Copyright: © 2019 The Author(s) Published by Oxford University Press on behalf of the Royal Astronomical Society

Journal keyword(s): stars: formation - stars: pre-main-sequence - stars: variables: T Tauri, Herbig Ae/Be - ISM: clouds - ISM: individual objects: Lynds 1188

Simbad objects: 154

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Number of rows : 154
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 NAME Per Arm PoG 03 30 +45.0           ~ 1672 0
2 IC 348 OpC 03 44 31.1 +32 10 02           ~ 1476 1
3 NAME Taurus Complex SFR 04 41.0 +25 52           ~ 4971 0
4 BD+40 4124 Ae* 20 20 28.2413946720 +41 21 51.529070088 11.11 11.36 10.62 10.510   B2Ve 303 0
5 IC 1396 OpC 21 38 51.4 +57 31 52           ~ 523 1
6 NGC 7129 OpC 21 43 01.1 +66 07 04     11.5     ~ 271 0
7 NAME Cepheus Bubble PoC 21 44 +61.7           ~ 39 0
8 Ass Cep OB 2 As* 21 51 +60.0           ~ 303 0
9 2MASS J22140180+6129208 Em* 22 14 01.7961967488 +61 29 20.774979024           ~ 1 0
10 ZTF J221408.09+613016.3 Or* 22 14 08.0967164160 +61 30 16.300610460           ~ 8 0
11 2MASS J22141156+6126063 Or* 22 14 11.5604614632 +61 26 06.371154564           ~ 8 0
12 2MASS J22141165+6156281 Em* 22 14 11.6654461848 +61 56 28.321324548           ~ 1 0
13 2MASS J22142611+6127246 Y*? 22 14 26.1172284384 +61 27 24.685869240           ~ 1 0
14 2MASS J22142723+6129433 Or* 22 14 27.2346927936 +61 29 43.327506912           ~ 3 0
15 2MASS J22142746+6126103 Or* 22 14 27.4627055592 +61 26 10.404496248           ~ 7 0
16 2MASS J22142761+6126200 Or* 22 14 27.6168941424 +61 26 20.114992572           ~ 2 0
17 2MASS J22142887+6125239 Or* 22 14 28.8783153672 +61 25 23.997804024           ~ 9 0
18 2MASS J22142908+6126025 Em* 22 14 29.0823942168 +61 26 02.629682772           ~ 1 0
19 2MASS J22142915+6127426 Y*? 22 14 29.1600985272 +61 27 42.739539264           ~ 1 0
20 2MASS J22142967+6125394 Y*? 22 14 29.6721029736 +61 25 39.439546356           ~ 1 0
21 2MASS J22143014+6132132 Or* 22 14 30.1442375136 +61 32 13.227840096           ~ 2 0
22 2MASS J22143083+6127304 Or* 22 14 30.8309672688 +61 27 30.417309216           ~ 2 0
23 2MASS J22143129+6127587 Em* 22 14 31.2936792096 +61 27 58.741140420           ~ 2 0
24 ZTF J221431.96+613221.6 Or* 22 14 31.9710400584 +61 32 21.712662276           ~ 5 0
25 2MASS J22143312+6129374 Em* 22 14 33.1260965544 +61 29 37.504004856           ~ 1 0
26 2MASS J22143646+6124439 Or* 22 14 36.4531123968 +61 24 44.019201960           ~ 2 0
27 ZTF J221436.82+615025.1 BY* 22 14 36.8259685704 +61 50 25.105200360           ~ 4 0
28 2MASS J22143714+6126246 Em* 22 14 37.1486528616 +61 26 24.711334872           ~ 1 0
29 2MASS J22143799+6128060 Or* 22 14 37.9987300296 +61 28 06.112078824           ~ 2 0
30 2MASS J22143816+6125514 Or* 22 14 38.1616103856 +61 25 51.459094704           ~ 2 0
31 IRAS 22129+6110 Cld 22 14 38.3 +61 25 41           ~ 6 0
32 2MASS J22143844+6125019 Or* 22 14 38.4458933976 +61 25 01.970318532           ~ 9 0
33 ZTF J221438.59+612437.8 RS* 22 14 38.5973535792 +61 24 37.824227100           ~ 3 0
34 2MASS J22143941+6125427 mul 22 14 39.41304 +61 25 42.7692           ~ 1 0
35 2MASS J22143956+6127511 Em* 22 14 39.5759583144 +61 27 51.183842508           ~ 1 0
36 2MASS J22143982+6125587 Or* 22 14 39.8196717096 +61 25 58.822683204           ~ 7 0
37 [ADM95] 1 Y*O 22 14 40.3023672216 +61 26 13.812983880       15.428   ~ 8 0
38 2MASS J22144089+6126451 Or* 22 14 40.8961330824 +61 26 45.121246692           ~ 2 0
39 2MASS J22144158+6124100 Or* 22 14 41.5845966936 +61 24 10.099105668           ~ 8 0
40 2MASS J22144218+6125251 Or* 22 14 42.1827265368 +61 25 25.187599092           ~ 7 0
41 2MASS J22144343+6128192 Or* 22 14 43.4431276632 +61 28 19.246614204           ~ 2 0
42 2MASS J22145152+6140127 Em* 22 14 51.5378553552 +61 40 12.862678656           ~ 1 0
43 ZTF J221452.13+613105.3 Or* 22 14 52.1303645616 +61 31 05.196391896           ~ 4 0
44 2MASS J22145479+6128328 Or* 22 14 54.7942772880 +61 28 32.867365728           ~ 2 0
45 2MASS J22145480+6142247 Y*O 22 14 54.8129354832 +61 42 24.802836480       13.852   ~ 2 0
46 LBN 105.28+04.03 RNe 22 15 +61.4           ~ 6 0
47 2MASS J22150238+6132443 Or* 22 15 02.3932276104 +61 32 44.341205316           ~ 2 0
48 2MASS J22150364+6129297 Em* 22 15 03.6556747128 +61 29 29.689275192           ~ 1 0
49 ZTF J221504.19+613917.3 Y*O 22 15 04.1892316080 +61 39 17.268901272           ~ 3 0
50 2MASS J22150844+6131551 Or* 22 15 08.4416342160 +61 31 55.098998508           ~ 3 0
51 ZTF J221519.25+613652.3 LP* 22 15 19.2457339824 +61 36 52.310321064           ~ 5 0
52 UCAC4 760-068619 Y*O 22 15 21.0819020640 +61 48 27.399178404   15.815 14.690 14.448   ~ 4 0
53 2MASS J22153114+6155278 Em* 22 15 31.1934866784 +61 55 27.887318760           ~ 1 0
54 TYC 4263-49-1 Y*? 22 15 43.9993960200 +61 52 27.953438448   12.15 10.55     ~ 1 0
55 ZTF J221549.45+613646.5 RS* 22 15 49.4509868400 +61 36 46.586818728           ~ 3 0
56 IRAS 22143+6120 Em* 22 15 57.6377421624 +61 35 46.416347592           ~ 5 0
57 2MASS J22155931+6135364 Y*O 22 15 59.3082263688 +61 35 36.422141136           ~ 1 0
58 2MASS J22160406+6136151 Em* 22 16 04.0671172416 +61 36 15.163603164           ~ 2 0
59 2MASS J22160599+6135539 Y*O 22 16 05.9913981024 +61 35 54.059883180           ~ 1 0
60 2MASS J22161536+6133101 Em* 22 16 15.3618013224 +61 33 10.143651780           ~ 1 0
61 SSTSL2 J221615.78+612948.6 Y*? 22 16 15.88896 +61 29 48.8184           ~ 1 0
62 2MASS J22161979+6129485 Y*? 22 16 19.79760 +61 29 48.5052           ~ 1 0
63 IRAS 22146+6111 C* 22 16 19.8370291944 +61 26 20.563107972           C 9 0
64 2MASS J22162448+6159190 Or* 22 16 24.4847611344 +61 59 19.034221128           ~ 3 0
65 SSTSL2 J221627.88+614047.7 Y*O 22 16 27.8584688928 +61 40 47.378066556           ~ 1 0
66 LDN 1188 DNe 22 16.7 +61 45           ~ 24 0
67 2MASS J22164304+6138199 Y*? 22 16 43.1158212624 +61 38 19.945847760           ~ 1 0
68 LS III +61 9 Y*O 22 16 43.4316949800 +61 24 17.529599736   11.212 10.736 10.644   B 25 0
69 2MASS J22164689+6133363 Y*? 22 16 46.8955944384 +61 33 36.320969088           ~ 1 0
70 2MASS J22165314+6143154 Y*? 22 16 53.14872 +61 43 15.4776           ~ 1 0
71 SSTSL2 J221658.12+614620.4 Y*O 22 16 58.12 +61 46 20.4           ~ 1 0
72 SSTSL2 J221702.70+611503.6 * 22 17 02.70576 +61 15 03.5316           ~ 1 0
73 ZTF J221703.24+613714.9 BY* 22 17 03.2433074544 +61 37 14.927015748           ~ 3 0
74 IRAS 22154+6149 Y*? 22 17 03.9499943376 +62 04 55.955576460           ~ 3 0
75 2MASS J22170788+6150395 Y*? 22 17 07.8834431136 +61 50 39.603330096           ~ 1 0
76 2MASS J22170839+6131063 Or* 22 17 08.4004017024 +61 31 06.470225400           ~ 4 0
77 2MASS J22170856+6141269 Y*? 22 17 08.5716364272 +61 41 26.730183624           ~ 1 0
78 UCAC4 759-067886 Y*O 22 17 09.5968745184 +61 41 11.714762976   15.201 14.265 14.065   ~ 2 0
79 RNO 140 ISM 22 17.2 +61 45           ~ 5 0
80 RNO 141 ISM 22 17.2 +61 45           ~ 4 0
81 2MASS J22171578+6152077 Y*? 22 17 15.7947912024 +61 52 07.877984484           ~ 1 0
82 2MASS J22171631+6141103 Y*? 22 17 16.3238844912 +61 41 10.466696148           ~ 1 0
83 2MASS J22171752+6138199 Em* 22 17 17.5271968368 +61 38 19.980775860           ~ 1 0
84 2MASS J22171890+6142327 Y*? 22 17 18.8220890208 +61 42 33.033547728           ~ 1 0
85 2MASS J22171956+6143038 Y*? 22 17 19.5781345056 +61 43 03.939445812           ~ 1 0
86 2MASS J22172039+6116469 Em* 22 17 20.3989556688 +61 16 47.056178712           ~ 1 0
87 ZTF J221721.75+614040.7 Or* 22 17 21.7509803088 +61 40 40.626625404           ~ 5 0
88 IRAS 22157+6127 Or* 22 17 22.2813378096 +61 43 05.613641040           ~ 7 0
89 2MASS J22172319+6149533 Y*? 22 17 23.19576 +61 49 53.3352           ~ 1 0
90 2MASS J22172330+6142312 Y*? 22 17 23.30352 +61 42 31.2192           ~ 1 0
91 UCAC4 759-067894 Y*O 22 17 25.5070569912 +61 43 02.096398164       13.437   ~ 2 0
92 2MASS J22172625+6139303 Em* 22 17 26.2621362504 +61 39 30.453492348           ~ 1 0
93 2MASS J22172630+6142188 Y*? 22 17 26.30136 +61 42 18.8712           ~ 1 0
94 2MASS J22172653+6142399 Y*? 22 17 26.53848 +61 42 39.9780           ~ 1 0
95 2MASS J22172654+6148145 Y*? 22 17 26.5503381576 +61 48 14.697158832           ~ 1 0
96 2MASS J22172691+6148110 Y*? 22 17 26.9264043816 +61 48 11.096543772           ~ 1 0
97 2MASS J22172728+6142174 Y*? 22 17 27.28992 +61 42 17.4024           ~ 1 0
98 2MASS J22172826+6145172 Em* 22 17 28.2707342736 +61 45 17.366508792           ~ 1 0
99 2MASS J22172872+6141509 Y*O 22 17 28.7469581088 +61 41 51.023501448           ~ 1 0
100 UCAC4 759-067897 Y*? 22 17 32.2285591584 +61 38 54.739563720       15.078   ~ 1 0
101 2MASS J22173240+6141522 Y*? 22 17 32.40144 +61 41 52.2564           ~ 1 0
102 ZTF J221734.55+613928.5 LP* 22 17 34.5604894392 +61 39 28.485866916           ~ 4 0
103 2MASS J22173637+6127153 Y*? 22 17 36.3849402912 +61 27 15.352290036           ~ 1 0
104 2MASS J22173716+6143125 Y*? 22 17 37.1789227056 +61 43 12.544451400           ~ 1 0
105 2MASS J22173825+6141461 Y*? 22 17 38.2623742872 +61 41 46.185062316           ~ 1 0
106 2MASS J22174025+6147025 Or* 22 17 40.2539217048 +61 47 02.648740812           ~ 5 0
107 2MASS J22174140+6143525 ** 22 17 41.40360 +61 43 52.5288           ~ 1 0
108 2MASS J22174277+6131334 Y*O 22 17 42.7865760840 +61 31 33.507211332           ~ 1 0
109 SSTSL2 J221743.66+612657.7 Y*? 22 17 43.6517753544 +61 26 57.867135000           ~ 1 0
110 IRAS 22161+6140 Y*O 22 17 44.8947765960 +61 55 37.002277488           ~ 10 0
111 2MASS J22174489+6141310 Or* 22 17 44.9115987360 +61 41 31.117869816           ~ 3 0
112 2MASS J22174587+6154328 Y*? 22 17 45.885816 +61 54 32.96232   13.892 13.080 12.819   ~ 1 0
113 2MASS J22174609+6139252 Y*O 22 17 46.1045249424 +61 39 25.307319168           ~ 4 0
114 WISEA J221748.98+615514.9 Y*? 22 17 48.98568 +61 55 14.9520           ~ 1 0
115 2MASS J22180144+6137582 Or* 22 18 01.4587364232 +61 37 58.323095796           ~ 2 0
116 ZTF J221801.54+614030.2 LP* 22 18 01.5496579944 +61 40 30.262625940           ~ 4 0
117 2MASS J22180824+6131326 Y*? 22 18 08.2562338272 +61 31 32.702581128           ~ 1 0
118 2MASS J22181032+6150416 Or* 22 18 10.3167739632 +61 50 41.707134312           ~ 4 0
119 ZTF J221814.40+613557.0 Or* 22 18 14.4043843512 +61 35 57.060827880           ~ 7 0
120 2MASS J22182573+6137265 Or* 22 18 25.7314348296 +61 37 26.564320020           ~ 4 0
121 NIKC 4-64 C* 22 18 27.1305683712 +61 41 56.647726476           C 15 0
122 ZTF J221840.50+613729.8 Or* 22 18 40.5114110568 +61 37 29.889663420           ~ 7 0
123 2MASS J22185005+6122062 Em* 22 18 50.0494363704 +61 22 06.032653068           ~ 1 0
124 2MASS J22190050+6136265 Or* 22 19 00.5075366160 +61 36 26.585683488           ~ 4 0
125 2MASS J22190065+6136384 Em* 22 19 00.6453500256 +61 36 38.497655160           ~ 1 0
126 2MASS J22190298+6136208 Or* 22 19 02.9822577528 +61 36 20.856098628           ~ 4 0
127 UCAC4 759-067948 Em* 22 19 03.1721842296 +61 37 56.381319804       16.140   ~ 1 0
128 2MASS J22190443+6136486 Em* 22 19 04.4303083176 +61 36 48.728926044           ~ 1 0
129 2MASS J22190442+6136250 Or* 22 19 04.4332607160 +61 36 25.172111592           ~ 4 0
130 IRAS 22174+6121 Or* 22 19 05.5486080432 +61 36 15.741531612           ~ 9 0
131 2MASS J22190631+6135522 Y*O 22 19 06.3096796440 +61 35 52.292765904           ~ 1 0
132 SH 2-140 OpC 22 19 07.8 +63 17 07           ~ 668 2
133 2MASS J22190876+6137075 Em* 22 19 08.7553808256 +61 37 07.615246440           ~ 1 0
134 2MASS J22190879+6137329 Em* 22 19 08.7861125160 +61 37 32.981774304           ~ 2 0
135 ZTF J221909.48+613758.7 Or* 22 19 09.4954559808 +61 37 58.753251588           ~ 8 0
136 2MASS J22191296+6137305 Em* 22 19 12.9562576488 +61 37 30.595844172           ~ 1 0
137 2MASS J22191372+6137457 Y*O 22 19 13.7245212096 +61 37 45.730238484   13.480 12.682 12.452   ~ 4 0
138 2MASS J22191468+6138474 Y*O 22 19 14.6886947832 +61 38 47.550629112           ~ 2 0
139 2MASS J22192789+6158582 Em* 22 19 27.8908782144 +61 58 58.289450916           ~ 1 0
140 IRAS 22179+6106 Y*? 22 19 40.9748205245 +61 21 19.914870960   15.456 14.402 14.234   ~ 4 0
141 2MASS J22194525+6124372 Y*? 22 19 45.2542064616 +61 24 37.269202896       15.554   ~ 1 0
142 2MASS J22201557+6159403 Em* 22 20 15.5855711376 +61 59 40.308110232           ~ 1 0
143 2MASS J22210934+6120172 Em* 22 21 09.3331591272 +61 20 17.319451164           ~ 1 0
144 2MASS J22214129+6141164 Or* 22 21 41.3195891352 +61 41 16.380150180           ~ 3 0
145 2MASS J22214250+6130588 Y*? 22 21 42.5051961576 +61 30 58.854535128           ~ 1 0
146 2MASS J22222362+6132525 Y*? 22 22 23.6369948304 +61 32 52.618492140           ~ 1 0
147 2MASS J22222816+6154302 Em* 22 22 28.1741028360 +61 54 30.182255784           ~ 1 0
148 IRAS 22213+6142 Y*O 22 23 00.3848425656 +61 57 21.262390020           ~ 3 0
149 LDN 1204 DNe 22 26.7 +63 15           ~ 88 1
150 LDN 1211 DNe 22 47 39 +62 01.3           ~ 38 0
151 Ass Cep OB 2a As* ~ ~           ~ 8 0
152 [ADM95] B PoC ~ ~           ~ 2 0
153 [ADM95] A PoC ~ ~           ~ 2 0
154 [ADM95] C PoC ~ ~           ~ 2 0

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