2002A&A...385..404M

Query : 2002A&A...385..404M

2002A&A...385..404M - Astronomy and Astrophysics, volume 385, 404-411 (2002/4-2)

SED, metallicity and age of halo globular clusters in M33.

MA J., ZHOU X., CHEN J., WU H., JIANG Z., XUE S. and ZHU J.

Abstract (from CDS):

In this paper we study the properties of ten halo globular clusters in the nearby spiral galaxy M33. CCD images of M33 were obtained as a part of the BATC Colour Survey of the sky in 13 intermediate-band filters from 3800 to 10000Å. By aperture photometry, we obtain the spectral energy distributions (SEDs) of these globular clusters. We estimate the ages of our sample clusters by comparing the photometry of each object with theoretical stellar population synthesis models for different values of metallicity. Our results suggest that eight of the ten sample halo globular clusters have ``intermediate'' ages, i.e. between 1 and 8Gyrs.

Abstract Copyright: ∼

Journal keyword(s): galaxies: photometry - galaxies: cluster: individual: M 33 - galaxies: evolution

Simbad objects: 28

Full paper

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Number of rows : 28

N	Identifier	Otype	ICRS (J2000) RA	ICRS (J2000) DEC	Mag U	Mag B	Mag V	Mag R	Mag I	Sp type	#ref 1850 - 2023	#notes
1	M 31	G	00 42 44.330	+41 16 07.50	4.86	4.36	3.44			~	12376	1
2	CBF 54	GlC	01 33 14.2863375672	+30 28 22.530659808	19.362	19.129	18.323	17.752	17.258	~	34	0
3	[SSA2010] 1132	Cl*	01 33 22.10	+30 45 34.3	19.846	19.674	19.034	18.596	18.083	~	8	0
4	[CS82] U50	Cl*	01 33 23.30	+30 46 09.0	19.918	20.033	19.624	19.467	19.181	~	6	1
5	[SSA2010] 1203	GlC	01 33 28.6875445368	+30 41 35.186506296	18.092	18.042	17.286	16.846	16.379	~	30	0
6	[SSA2010] 1230	GlC	01 33 30.70	+30 22 21.4	18.988	18.583	18.036	17.644	17.206	~	24	0
7	[SBG2007] 4	GlC	01 33 35.0831406456	+30 49 00.041875644	19.988	19.447	18.373	17.692	17.099	~	26	0
8	[SSA2010] 1458	GlC	01 33 45.10	+30 47 46.7	17.210	17.081	16.298	15.823	15.311	~	38	0
9	M 33	GiG	01 33 50.8965749232	+30 39 36.630403128	6.17	6.27	5.72			~	5721	1
10	[SSA2010] 1566	GlC	01 33 52.20	+30 29 03.8	18.297	18.126	17.290	16.773	16.277	~	32	0
11	[SSA2010] 1819	GlC	01 34 11.00	+30 40 30.1	18.339	18.259	17.730	17.377	16.896	~	20	0
12	[SSA2010] 2016	Cl*	01 34 24.53	+30 53 05.4	19.261	19.014	18.199	17.668	17.119	~	18	0
13	[SSA2010] 2043	GlC	01 34 27.10	+30 36 42.3	18.136	18.181	17.697	17.423	17.084	~	20	0
14	[CS82] C15	Cl*	01 34 28.50	+30 53 35.9		19.79	19.16		18.53	~	5	1
15	[SSA2010] 2059	Cl*	01 34 29.10	+30 53 20.6	19.095	18.963	18.382	18.084	17.659	~	13	1
16	[SSA2010] 2075	GlC	01 34 30.20	+30 38 13.0	17.848	17.880	17.127	16.618	16.108	~	33	0
17	[CS82] U102	Cl*	01 34 30.4828161216	+30 36 48.372350436	19.262	19.709	19.391	19.121	18.752	~	6	1
18	[CS82] C27	Cl*	01 34 43.7461899672	+30 47 38.224477104	17.777	17.748	17.247	16.968	16.583	~	16	1
19	[SSA2010] 2222	GlC	01 34 44.20	+30 52 18.9	18.565	18.427	17.578	17.073	16.595	~	27	0
20	HD 19445	PM*	03 08 25.5883873084	+26 19 51.400965175	8.29	8.52	8.06	7.60	7.27	G2VFe-3	765	0
21	NGC 2264	OpC	06 40 52.1	+09 52 37						~	1760	0
22	NGC 2419	GlC	07 38 08.51	+38 52 54.9			10.05			~	916	0
23	HD 84937	Pe*	09 48 56.0992891997	+13 44 39.326709913	8.49	8.68	8.32	7.97	7.70	F8Vm-5	781	0
24	M 81	Sy2	09 55 33.1726556496	+69 03 55.062505368		7.89	6.94			~	4358	3
25	BD+26 2606	SB*	14 49 02.3593347728	+25 42 09.192358874	9.92	10.16	9.73	9.27	8.95	A5	368	0
26	NGC 7006	GlC	21 01 29.465	+16 11 16.49			10.46			~	519	0
27	M 15	GlC	21 29 58.33	+12 10 01.2						~	3102	0
28	BD+17 4708	SB*	22 11 31.3756832854	+18 05 34.177983548	9.73	9.91	9.46	9.03	8.70	sdF8	563	0

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