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V/43 Masses and Ages of Stars in Twelve Open Clusters (Myakutin+ 1984)
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Catalogue of Masses and Ages of Stars in Twelve Open Clusters
Myakutin V.I., Sagar R., Joshi U.C.
<CDS Bull. No. 26, p. 103 (1984)>
=1984BICDS..26..103M
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ADC_Keywords: Clusters, open ; Stars, masses ; Stars, ages
Description:
In this catalogue the evolutionary masses and ages of about 1030 stars
in 12 open clusters for which the UBV photoelectric photometry
has been carried out at the U.P. State Observatory, Nainital, India
are listed. The mass and age of a star can be estimated by its
position in the H-R diagram using the theoretical evolutionary
tracks of stars with different masses. In comparison to field
stars, members of an open cluster are more suitable objects for
such calculations because of the homogeneous chemical composition
in the clusters and the reliability of luminosities and temperatures
determined from the cluster UBV data (Piskunov, 1980)
See the list of clusters in the Note(1) below.
File Summary:
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FileName Lrecl Records Explanations
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ReadMe 80 . This file
catalog.dat 73 1724 The catalogue
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Byte-by-byte Description of file: catalog.dat
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Bytes Format Units Label Explanations
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1 A1 --- Cl [A-L] Cluster designation (1)
3- 5 I3 --- Seq Sequential number of the star
7- 10 A4 --- Ident Designation of the star number
in the UBV source
12- 16 F5.2 mag V V magnitude
18- 22 F5.2 mag B-V color index
24- 28 F5.2 mag U-B color index
30- 34 F5.2 mag E(B-V) Color excess
37- 38 A2 --- Memb Membership indicator
40- 41 I2 --- LC Lumminosity Class
44- 47 F4.2 K logTe Effective temperature
49- 53 F5.2 Sun logL Luminosity
55- 63 E9.2 yr Age Star age
65- 69 F5.2 Sun Mass Mass of the star
71- 73 I3 --- Pr [0/100]? Probability of estimated mass and age
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Note (1): The list includes the following clusters:
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NGC Cluster# Rup m-M E(B-V) Ref
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A = 581 C0129+604 326 12.05 0.38 [1]
B = (TR1) C0132+610 328 11.64 0.52 [2]
C = 654 C0140+616 330 10.85 [3]
D = (IC1805) C0228+612 352 11.90 [4]
E = 1778 C0504+369 429 11.09 0.34 [5]
F = 2169 C0605+139 481 10.04 0.18 [6]
G = 2264 C0638+099 495 9.50 [7]
H = 2539 C0808-126 611 10.60 0.11 [8]
I = 6530 C1801-243 19 11.20 [9]
J = 6611 C1816-138 54 12.50 [10]
K = 6823 C1941+231 124 12.70 [11]
L = 6913 C2022+383 168 10.40 [12]
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References:
[1] Sagar R., Joshi U.C, 1978, Bull.Astron.Soc.India, 6, 12
[2] Joshi U.C, Sagar R, 1977, Ap.Space Sci, 48,225
[3] Joshi U.C, Sagar R, 1983, Mon.N.R.Astron.Soc, 202, 961
[4] Joshi U.C, Sagar R, 1983, J.Roy.Astron.Soc.Canada, 77, N.1,40
[5] Joshi U.C, Sagar R, Pandey P., 1975, PRAMANA, 4,160
[6] Sagar R, 1976, Ap.Space Sci, 40, 447
[7] Sagar R, Joshi U.C, 1983, Mon.N.R.Astron.Soc, 205, N.2
[8] Joshi U.C, Sagar R, 1983, preprint
[9] Sagar R, Joshi U.C, 1978, Mon.N.R.Astron.Soc, 184, 467
[10] Sagar R, Joshi U.C, 1979, Ap.Space Sci, 66, 3
[11] Sagar R, Joshi U.C, 1981, Ap.Space Sci, 75, 465
[12] Joshi U.C, Sanwal B.B, Sagar R, 1983, Publ.Astron.Soc.Japan, 35, 405
Piskunov A.E., 1980, Bull. Inf. CDS 19, 67
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(End) Francois Ochsenbein [CDS], James Gass [SSDOO/ADC] 29-Jul-1997