2007AJ....133..290S

Query : 2007AJ....133..290S

2007AJ....133..290S - Astron. J., 133, 290-302 (2007/January-0)

Newly identified star clusters in M33. I. Integrated photometry and color-magnitude diagrams.

SARAJEDINI A., BARKER M.K., GEISLER D., HARDING P. and SCHOMMER R.

Abstract (from CDS):

We present integrated photometry and color-magnitude diagrams (CMDs) for 24 star clusters in M33, of which 12 were previously uncataloged. These results are based on Advanced Camera for Surveys observations from the Hubble Space Telescope of two fields in M33. Our integrated V magnitudes and V-I colors for the previously identified objects are in good agreement with previously published photometry. We are able to estimate ages for 21 of these clusters using features in the CMDs, including isochrone fitting to the main-sequence turnoffs for 17 of the clusters. Comparisons of these ages with the clusters' integrated colors and magnitudes suggest that simple stellar population models perform reasonably well in predicting these properties.

Abstract Copyright: ∼

Journal keyword(s): Galaxies: Individual: Messier Number: M33 - Galaxies: Spiral - Galaxies: Stellar Content - Stars: Hertzsprung-Russell Diagram

Nomenclature: Table 2, Figs 2, 3: [SBG2007] NN (Nos 1-24).

Simbad objects: 25

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Number of rows : 25
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 [SSA2010] 1233 GlC 01 33 30.90 +30 49 11.8 19.216 19.034 18.478 18.142 17.722 ~ 15 0
2 [SSA2010] 1258 GlC 01 33 33.00 +30 49 41.7 19.359 19.160 18.551 18.132 17.645 ~ 16 0
3 [SSA2010] 1262 GlC 01 33 33.28 +30 48 30.5 19.095 18.980 18.462 18.151 17.678 ~ 16 0
4 CBF 108 Cl* 01 33 34.68 +30 48 21.2 19.549 19.791 19.172 18.707 18.196 ~ 10 0
5 [SBG2007] 4 GlC 01 33 35.0831406456 +30 49 00.041875644 19.988 19.447 18.373 17.692 17.099 ~ 27 0
6 [SSA2010] 1287 GlC 01 33 36.19 +30 47 55.1 18.184 18.429 18.067 17.831 17.475 ~ 11 0
7 [SSA2010] 1303 GlC 01 33 36.79 +30 49 17.5 18.904 19.168 18.651 18.293 17.903 ~ 7 0
8 [SBG2007] 10 Cl* 01 33 37.81 +30 50 32.3 18.607 20.373 19.495 18.348 18.336 ~ 6 0
9 [SSA2010] 1355 GlC 01 33 39.49 +30 48 48.2 19.153 19.101 18.719 18.558 18.301 ~ 15 0
10 [SSA2010] 1393 GlC 01 33 41.5629123768 +30 48 08.557479864 19.411 19.411 18.704 18.435 18.354 ~ 8 0
11 [SBG2007] 12 Cl* 01 33 41.94 +30 49 20.1 21.438 20.996 19.970 19.498 18.399 ~ 6 0
12 [SBG2007] 11 Cl* 01 33 45.1100809656 +30 49 09.231581064 19.933 20.018 18.781 18.545 18.053 ~ 10 0
13 M 33 GiG 01 33 50.8965749232 +30 39 36.630403128 6.17 6.27 5.72     ~ 6226 1
14 [SBG2007] 23 GlC 01 34 21.5517716496 +30 36 46.063306620 18.803 19.019 18.594 18.395 18.126 ~ 11 0
15 [SSA2010] 1999 GlC 01 34 23.0200943328 +30 37 39.675012492 19.351 19.373 19.058 18.760 18.389 ~ 7 0
16 [SSA2010] 2026 GlC 01 34 25.51 +30 36 56.8 18.438 18.581 18.188 17.895 17.342 ~ 10 0
17 [SBG2007] 21 GlC 01 34 26.2969321535 +30 37 22.815420195 18.182 18.554 18.181 17.819 17.382 ~ 7 0
18 [SSA2010] 2043 GlC 01 34 27.10 +30 36 42.3 18.136 18.181 17.697 17.423 17.084 ~ 21 0
19 [SSA2010] 2050 GlC 01 34 28.19 +30 36 17.1 15.911 16.211 15.938 15.778 15.540 ~ 7 0
20 [SSA2010] 2054 GlC 01 34 28.4510449152 +30 37 56.037852984 19.049 19.210 18.900 18.478 18.469 ~ 7 0
21 [SBG2007] 14 Cl* 01 34 29.07 +30 38 05.4 19.051 19.428 18.999 18.618 18.251 ~ 8 0
22 [SSA2010] 2075 GlC 01 34 30.20 +30 38 13.0 17.848 17.880 17.127 16.618 16.108 ~ 34 0
23 [SSA2010] 2115 GlC 01 34 32.90 +30 38 12.0 19.803 19.679 19.030 18.489 17.848 ~ 11 0
24 [SSA2010] 2119 GlC 01 34 33.0464764800 +30 37 36.172095204 18.106 18.473 18.291 18.116 17.861 ~ 12 0
25 CBF 76 Cl* 01 34 33.12 +30 38 14.2 19.738 19.629 18.983 18.637 18.317 ~ 9 0

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