2015MNRAS.446.1268C

Query : 2015MNRAS.446.1268C

2015MNRAS.446.1268C - Mon. Not. R. Astron. Soc., 446, 1268-1282 (2015/January-2)

A search for open cluster Cepheids in the Galactic plane.

CHEN X., DE GRIJS R. and DENG L.

Abstract (from CDS):

We analyse all potential combinations of Galactic Cepheids and open clusters (OCs) in the most up-to-date catalogues available. Isochrone fitting and proper-motion calculation are applied to all potential OC-Cepheid combinations. Five selection criteria are used to select possible OC Cepheids: (i) the Cepheid of interest must be located within 60arcmin of the OC's centre; (ii) the Cepheid's proper motion is located within the 1σ distribution of that of its host OC; (iii) the Cepheid is located in the instability strip of its postulated host OC; (iv) the Cepheid and OC distance moduli should differ by less than 1mag; and (v) the Cepheid and OC ages (and, where available, their metallicities) should be comparable: Δlog(t/yr) < 0.3. 19 possible OC Cepheids are found based on our near-infrared (NIR) analysis; eight additional OC-Cepheid associations may be genuine pairs for which we lack NIR data. Six of the Cepheids analysed at NIR wavelengths are new, high-probability OC Cepheids, since they lie on the NIR period (P)-luminosity relation (PLR). These objects include TY Sct and CN Sct in Dolidze 34, XX Sgr in Dolidze 52, CK Sct in NGC 6683, VY Car in ASCC 61 and U Car in Feinstein 1. Two additional new OC Cepheids lack NIR data: V0520 Cyg in NGC 6991 and CS Mon in Juchert 18. The NIR PLR for our confirmed sample of OC Cepheids is MJ = (-3.12±0.29)log(Pd-1) - (2.17±0.29)mag, which is in good agreement with the best NIR PLR available for all Galactic Cepheids.

Abstract Copyright: © 2014 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society (2014)

Journal keyword(s): methods: data analysis - stars: variables: Cepheids - open clusters and associations: general - distance scale

Simbad objects: 74

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Number of rows : 74
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 Cl Berkeley 58 OpC 00 00 17.4 +60 56 28   10.39 9.7     ~ 72 0
2 V* CG Cas cC* 00 00 59.2385245512 +60 57 32.432852268   12.70 11.28     F5 113 0
3 V* V379 Cas cC* 00 26 35.9584556448 +60 47 53.433364776   10.18 9.16     F6 63 0
4 V* DL Cas cC* 00 29 58.5888773064 +60 12 43.065292140 10.66 9.88 8.63   7.582 G1Ib-IIHdel-1 349 0
5 NGC 129 OpC 00 30 25.8 +60 12 44   7.33 6.5     ~ 216 0
6 NAME SMC G 00 52 38.0 -72 48 01   2.79 2.2     ~ 12317 1
7 Cl Czernik 8 OpC 02 32 56.4 +58 45 39   10.89 9.7     ~ 46 0
8 V* UY Per cC* 02 34 31.3002163512 +58 49 53.842491876   12.46 11.18   9.431 F7 133 0
9 DSH J0631.4+0648 OpC 06 31 25.6 +06 48 01           ~ 19 1
10 V* CS Mon cC* 06 32 10.9439677896 +06 39 11.026231236   12.24 11.25 10.78   ~ 61 0
11 V* CV Mon cC* 06 37 04.8449178072 +03 03 50.274557532   11.32 9.90   8.631 ~ 254 0
12 Cl VDB 1 OpC 06 37 06.0 +03 04 31           ~ 68 0
13 ASAS J075503-2614.3 cC* 07 55 02.8775541984 -26 14 17.304085032   12.33 11.33     ~ 8 0
14 Cl Trumpler 9 OpC 07 55 39.8 -25 53 20   8.96 8.7     ~ 53 0
15 Cl Ruprecht 65 OpC 08 39 24.6 -44 02 57           ~ 35 0
16 V* AP Vel cC* 08 39 45.7557936912 -43 51 39.163001040   11.17 10.16     F9 106 0
17 Cl Ruprecht 79 OpC 09 41 04.1 -53 50 33           ~ 89 0
18 V* CS Vel cC* 09 41 10.2609376392 -53 48 57.785105952   12.46 11.24   10.078 ~ 126 0
19 Cl Collinder 220 OpC 10 25 44.7 -57 55 38           ~ 39 0
20 V* UW Car cC* 10 26 50.8788022224 -59 40 10.377831792   10.33 9.47   8.219 G0 83 0
21 V* VY Car cC* 10 44 32.6909254176 -57 33 55.327074480 8.12 7.70 6.87   6.299 F7Iab/b 231 0
22 V* SX Car cC* 10 46 05.8412346072 -57 32 51.122540256   9.93 9.06 9.51 8.047 F6Ib/II 110 0
23 [KPR2005] 61 OpC 10 46.1 -56 52           ~ 18 0
24 V* U Car cC* 10 57 48.1866744768 -59 43 55.883482140 8.31 7.21 6.11   5.073 G5/8Iab 247 0
25 Cl Sher 1 OpC 11 01 01.9 -60 13 57   9.14 8.8     ~ 42 0
26 V* FN Car cC* 11 01 14.3898966552 -60 06 59.666333364   12.30 11.66     ~ 60 0
27 [KPR2005] 64 OpC 11 03 04 -60 55.2           ~ 20 0
28 V* HK Car cC* 11 03 45.2040357888 -60 38 32.175959100   11.35 10.24 10.034   G5 48 0
29 V* XZ Car cC* 11 04 13.4721922680 -60 58 47.732442924 11.38 10.11 8.67     K5 131 0
30 Cl Feinstein 1 OpC 11 06 43 -59 49.2   4.84 4.7     ~ 39 0
31 [KPR2005] 69 OpC 12 06 36 -69 46.2           ~ 27 0
32 V* S Mus cC* 12 12 47.0199008472 -70 09 06.439196664 7.58 8.80 8.33 7.39 5.196 F6Ib+B5V 275 0
33 V* R Cru cC* 12 23 37.6899136176 -61 37 44.852101104 7.41 7.00 6.42     F7Ib/II 174 0
34 NGC 4349 OpC 12 24 14.1 -61 52 11   8.01 7.4     ~ 124 0
35 V* V Cen cC* 14 32 33.0833481288 -56 53 15.774129600 8.44 7.84 6.93   5.798 F5Ib/II 288 0
36 NGC 5662 OpC 14 34 55.5 -56 40 41   6.18 5.5     ~ 136 0
37 ASAS J155149-5621.8 cC* 15 51 48.8054519280 -56 21 50.999572260   13.31 11.83 11.30   ~ 4 0
38 NGC 5999 OpC 15 52 11.0 -56 28 51     9.0     ~ 57 0
39 Cl Lynga 6 OpC 16 04 50.7 -51 57 19   10.28 9.5     ~ 95 0
40 V* TW Nor cC* 16 04 55.2261513912 -51 57 12.653328096   13.67 11.17     ~ 171 0
41 V* QZ Nor cC* 16 11 20.4664528848 -54 21 14.824796688 10.08 9.53 8.71 8.66   G1Iab 154 0
42 NGC 6067 OpC 16 13 10.2 -54 13 48           ~ 239 0
43 V* S Nor cC* 16 18 51.8316855000 -57 53 59.256000852 8.15 7.49 6.49   5.427 F8/G0Ib 396 1
44 NGC 6087 OpC 16 18 55.7 -57 53 32           ~ 198 0
45 Cl Ruprecht 119 OpC 16 28 06.4 -51 29 37           ~ 56 0
46 ASAS J162811-5111.9 cC* 16 28 11.2296391608 -51 11 56.322920220   11.63 10.31     ~ 11 0
47 Cl Turner 2 OpC 18 16 51 -19 01.8           ~ 29 0
48 V* WZ Sgr cC* 18 16 59.7160721616 -19 04 32.989734840   9.10 7.45     F7(III) 270 0
49 Cl Kharchenko 3 OpC 18 22 47 -14 38.0           ~ 13 0
50 Cl Dolidze 52 OpC 18 23 55 -16 38.4           ~ 13 0
51 V* XX Sgr cC* 18 24 44.5009232352 -16 47 49.818126264   10.51 9.65 9.38   F7/8II 131 0
52 ASAS J182714-1507.1 cC* 18 27 13.4506473456 -15 07 04.715016708   11.93 10.692     ~ 20 0
53 IC 4725 OpC 18 31 47.5 -19 07 37           ~ 239 0
54 V* U Sgr cC* 18 31 53.3323107600 -19 07 30.261459540 8.50 7.81 6.68   5.413 G1Ib 491 0
55 V* CK Sct cC* 18 41 00.6633099216 -06 05 50.009057124   12.59 10.72     G 84 0
56 Cl Dolidze 34 OpC 18 41 54 -04 16.0           ~ 17 0
57 V* RU Sct cC* 18 41 56.3818572048 -04 06 38.376404820   10.17 8.82     G5 216 0
58 V* TY Sct cC* 18 42 07.9137911472 -04 17 36.534635808   13.07 11.00   8.829 F8 115 0
59 NGC 6683 OpC 18 42 13 -06 12.0   9.93 9.4     ~ 28 0
60 V* CN Sct cC* 18 42 30.4903281960 -04 19 50.351682900   14.58       ~ 58 0
61 Cl Trumpler 35 OpC 18 42 57.9 -04 13 21   10.44 9.2     ~ 79 0
62 V* BB Sgr cC* 18 50 59.8729954248 -20 17 42.829838520 8.07 7.53 6.69   5.824 G0Ib 269 0
63 Cl Collinder 394 OpC 18 52 34.9 -20 10 39     6.3     ~ 96 0
64 Cl Turner 9 OpC 19 44 42.2 +29 29 20           ~ 41 0
65 V* X Cyg cC* 20 43 24.1917118680 +35 35 16.077149700 8.69 7.70 6.47   5.241 F7Ib 496 0
66 Cl Ruprecht 175 OpC 20 45 04 +35 30.2           ~ 18 0
67 NGC 6991 OpC 20 54 31.8 +47 23 26           ~ 77 2
68 V* V520 Cyg cC* 20 54 57.5308091904 +47 32 01.690200132   12.10 10.89     G0 68 0
69 V* V1726 Cyg cC* 21 29 38.9418445224 +48 58 08.707807488   9.76 8.91     F5 80 1
70 V* CE Cas B cC* 23 58 09.1062438336 +61 12 49.078923084   12.27 11.20     F8Ib 52 0
71 V* CE Cas ** 23 58 09.313 +61 12 49.26     10.63     F9Ib+F8Ib 135 0
72 V* CE Cas A cC* 23 58 09.4463569272 +61 12 49.336242768   12.15 10.95     F9Ib 59 0
73 V* CF Cas cC* 23 58 17.9760671064 +61 13 15.821693832   12.72 10.80   9.700 F8Ibv 256 0
74 NGC 7790 OpC 23 58 27.6 +61 12 33   9.18 8.5     ~ 286 0

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