2024AJ....168...34W

Query : 2024AJ....168...34W

2024AJ....168...34W - Astron. J., 168, 34 (2024/July-0)

Search for Classical Cepheids in Galactic Open Clusters and Calibration of the Period-Wesenheit-Metallicity Relation in the Gaia Bands.

WANG H., XU Y., LIN Z., HAO C., LIU D. and LI Y.

Abstract (from CDS):

It is beneficial to calibrate the period-Wesenheit-metallicity relation (PWZR) of Delta Cephei stars (DCEPs), i.e., classical Cepheids, using accurate parallaxes of associated open clusters (OCs) from Gaia data release 3 (DR3). To this aim, we obtain a total of 43 OC-DCEPs (including 33 fundamental mode, 9 first overtone mode, and 1 multimode DCEPs) and calibrate the PWZR as ${W}_{G}=(-3.356\pm 0.033)(\mathrm{log}P-1)+(-5.947\pm 0.025)$ + (-0.285 ± 0.064)[Fe/H]. The concurrently obtained residual parallax offset in OCs, zp = -4 ± 5 μas, demonstrates the adequacy of the parallax corrections within the magnitude range of OC member stars. By comparing the field DCEPs' DR3 parallaxes with their photometric parallaxes derived by our PWZR, we estimated the residual parallax offset in field DCEPs as zp = -15 ± 3 μas. Using our PWZR, we estimate the distance modulus of the Large Magellanic Cloud to be 18.482 ± 0.040 mag, which aligns well with the most accurate published value obtained through geometric methods.

Abstract Copyright: © 2024. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Cepheid variable stars - Cepheid distance - Open star clusters

Simbad objects: 81

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Number of rows : 81
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 V* CG Cas cC* 00 00 59.2385245512 +60 57 32.432852268   12.70 11.28     F5 113 0
2 V* V824 Cas cC* 00 22 31.2848072112 +63 01 58.958586948   12.535 11.224     ~ 17 0
3 SAI 4 OpC 00 23 32.3 +62 42 31           ~ 27 0
4 V* NO Cas cC* 00 24 04.6461814512 +61 20 29.931830124 13.22 12.506 11.393 11.062   G:I:e: 35 0
5 NGC 103 OpC 00 25 14.6 +61 19 34   10.28 9.8     ~ 87 0
6 V* V379 Cas cC* 00 26 35.9584556448 +60 47 53.433364776   10.18 9.16     F6 63 0
7 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
8 NGC 129 OpC 00 30 25.8 +60 12 44   7.33 6.5     ~ 216 0
9 CWNU 1841 OpC 00 39 48 -00 57.7           ~ 2 0
10 [CKS2019] COIN-Gaia 36 OpC 02 25 01 +59 58.5           ~ 5 0
11 V* GM Cas cC* 02 26 56.6912934864 +60 34 17.099458032   13.55 11.25     ~ 42 0
12 UBC 1273 OpC 03 45 18.5 +50 43 49           ~ 5 0
13 V* MN Cam cC* 03 57 29.7425622120 +54 56 17.075310576           ~ 25 0
14 V* AN Aur cC* 04 59 41.5376124792 +40 50 09.726015408   11.35 10.21     F6 117 0
15 NAME LMC G 05 23 34.6 -69 45 22     0.4     ~ 19090 0
16 [HXW2022] OC-0301 OpC 05 53 31.25976 +25 11 29.9904           ~ 2 0
17 V* RS Ori cC* 06 22 13.1926522608 +14 40 41.255838516   9.34 8.42   7.270 F4Ib 166 0
18 [FSR2007] 0951 OpC 06 22 17.9 +14 37 54           ~ 38 0
19 V* CV Mon cC* 06 37 04.8449178072 +03 03 50.274557532   11.32 9.90   8.631 ~ 254 0
20 Cl VDB 1 OpC 06 37 06.0 +03 04 31           ~ 68 0
21 V* WX Pup cC* 07 41 59.0037418728 -25 52 34.252471632   9.99 9.09   7.944 G0 130 0
22 UBC 231 OpC 07 42 12.2 -26 18 18           ~ 10 0
23 ASAS J075345-3658.2 cC* 07 53 45.0701837808 -36 58 13.444996008   12.49 11.05     ~ 17 0
24 V* V335 Pup cC* 07 56 57.7030564896 -22 49 31.572414660   9.58 9.18 9.16   F3II 68 0
25 UBC 1429 OpC 07 57 02.8 -27 54 37           ~ 5 0
26 UBC 229 OpC 07 57 04.8 -22 47 46           ~ 11 0
27 Cl Ruprecht 79 OpC 09 41 04.1 -53 50 33           ~ 89 0
28 V* CS Vel cC* 09 41 10.2609376392 -53 48 57.785105952   12.46 11.24   10.078 ~ 126 0
29 CWNU 2490 OpC 09 48 35 +01 23.5           ~ 2 0
30 [HR2023] HSC 2354 OpC 10 35 02.2 -59 37 52           ~ 2 0
31 OGLE GD-CEP-1847 cC* 10 35 05.9451407288 -59 38 05.327956271     12.304   10.638 ~ 7 0
32 V* VW Cru cC* 12 33 18.6685630272 -63 30 22.913163396   10.98 9.76 9.68 7.985 K0 80 0
33 CWNU 175 OpC 12 33 22.1 -63 31 48           ~ 3 0
34 V* X Cru cC* 12 46 22.2791657112 -59 07 29.015649480   8.97 8.10     G0/2Ib 106 0
35 UBC 290 OpC 12 47 47.1 -59 22 49           ~ 17 0
36 UBC 1558 OpC 14 30 49.3 -60 24 14           ~ 6 0
37 V* V Cen cC* 14 32 33.0833481288 -56 53 15.774129600 8.44 7.84 6.93   5.798 F5Ib/II 288 0
38 NGC 5662 OpC 14 34 55.5 -56 40 41   6.18 5.5     ~ 136 0
39 V* IQ Nor cC* 15 12 49.5175152288 -54 45 18.976049316   10.77 9.71     ~ 61 0
40 CWNU 19 OpC 15 14 09.6 -54 31 17           ~ 3 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 [KC2019] Theia 3005 As* 16 11 59.2 -54 21 04           ~ 2 0
43 NGC 6067 OpC 16 13 10.2 -54 13 48           ~ 239 0
44 V* V340 Nor cC* 16 13 17.3997630552 -54 14 05.586545400   9.61 8.47 8.83   G2Iab 175 1
45 V* S Nor cC* 16 18 51.8316855000 -57 53 59.256000852 8.15 7.49 6.49   5.427 F8/G0Ib 396 1
46 NGC 6087 OpC 16 18 55.7 -57 53 32           ~ 198 0
47 V* KQ Sco cC* 16 51 38.5473559392 -45 25 36.101286516 12.37 10.69 9.31     K7 149 0
48 [HR2023] HSC 2961 OpC 17 49 43.6 -32 58 38           ~ 2 0
49 V* RY Sco cC* 17 50 52.3447976064 -33 42 20.412288432 9.77 8.79 7.51   6.256 F6Ib 203 0
50 V* VY Sgr cC* 18 12 04.5659242512 -20 42 14.462412336   12.70 11.36     F6 87 0
51 IC 4725 OpC 18 31 47.5 -19 07 37           ~ 239 0
52 V* U Sgr cC* 18 31 53.3323107600 -19 07 30.261459540 8.50 7.81 6.68   5.413 G1Ib 491 0
53 NGC 6649 OpC 18 33 26.2 -10 23 54   10.35 8.9     ~ 154 0
54 V* V367 Sct cC* 18 33 35.2353033192 -10 25 38.126250552   13.34 11.580     F7Ib 187 0
55 NGC 6664 OpC 18 36 32.4 -08 11 23   8.81 7.8     ~ 135 0
56 CWNU 337 OpC 18 36 38.0 -08 53 59           ~ 3 0
57 V* EV Sct cC* 18 36 39.6017483712 -08 11 05.361288684   10.99 9.90     F8Ib 267 0
58 V* Y Sct cC* 18 38 03.3064182864 -08 22 08.163746040   11.2 9.69     F7 141 0
59 NAME Valparaiso 1 OpC 18 41 54.0 -05 25 01           ~ 16 0
60 V* TY Sct cC* 18 42 07.9137911472 -04 17 36.534635808   13.07 11.00   8.829 F8 115 0
61 NGC 6683 OpC 18 42 13 -06 12.0   9.93 9.4     ~ 28 0
62 V* CM Sct cC* 18 42 26.8209024792 -05 20 27.044239848   11.93 10.93   9.406 ~ 100 0
63 V* CN Sct cC* 18 42 30.4903281960 -04 19 50.351682900   14.58       ~ 58 0
64 V* Z Sct cC* 18 42 57.2738818992 -05 49 15.250864188   10.89 9.60   8.077 G0-M0 144 0
65 Cl Trumpler 35 OpC 18 42 57.9 -04 13 21   10.44 9.2     ~ 79 0
66 V* SV Vul cC* 19 51 30.9059845128 +27 27 36.837672012 8.65 9.00 6.74   5.703 F8Ia 460 0
67 Cl Alicante 13 OpC 19 52 14.2 +27 26 30           ~ 15 0
68 UBC 129 OpC 19 56 11.0 +26 28 17           ~ 16 0
69 V* X Vul cC* 19 57 28.6054979616 +26 33 23.284943352   10.16 8.87   7.147 F8Ia 187 0
70 UBC 135 OpC 19 59 17.8 +33 43 26           ~ 12 0
71 V* GI Cyg cC* 19 59 33.7107718752 +33 44 45.828351024   13.20 11.69   10.014 ~ 63 0
72 V* CD Cyg cC* 20 04 26.5612467720 +34 06 44.187399612   9.35 8.35     F8-G5Iab-Ib 226 0
73 Cl Berkeley 84 OpC 20 04 41 +33 54.4           ~ 14 0
74 Cl VDB 130 OpC 20 18 00 +39 19.8   9.87 9.3     ~ 24 1
75 V* V438 Cyg cC* 20 18 54.3162051216 +40 03 52.181190612   12.65 10.78     ~ 59 0
76 DSH J2135.5+5330 OpC 21 35 33.5 +53 31 07           ~ 27 0
77 ASASSN-V J213533.70+533049.3 cC* 21 35 33.7052737610 +53 30 49.264669620   13.840 12.463 12.010   ~ 17 0
78 V* CE Cas B cC* 23 58 09.1062438336 +61 12 49.078923084   12.27 11.20     F8Ib 52 0
79 V* CE Cas A cC* 23 58 09.4463569272 +61 12 49.336242768   12.15 10.95     F9Ib 59 0
80 V* CF Cas cC* 23 58 17.9760671064 +61 13 15.821693832   12.72 10.80   9.700 F8Ibv 256 0
81 NGC 7790 OpC 23 58 27.6 +61 12 33   9.18 8.5     ~ 286 0

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