2001ApJ...563..118P

Query : 2001ApJ...563..118P

2001ApJ...563..118P - Astrophys. J., 563, 118-123 (2001/December-2)

Ages of S0 and elliptical galaxies in the Coma cluster.

POGGIANTI B.M., BRIDGES T.J., CARTER D., MOBASHER B., DOI M., IYE M., KASHIKAWA N., KOMIYAMA Y., OKAMURA S., SEKIGUCHI M., SHIMASAKU K., YAGI M. and YASUDA N.

Abstract (from CDS):

The ages of stellar populations in 52 elliptical and S0 galaxies in the Coma Cluster are investigated, using a new spectroscopic sample. More than 40% of the S0's are found to have undergone star formation in their central regions during the last ∼5 Gyr, while such activity is absent in the ellipticals. Galaxies in this sample have absolute magnitudes in the range -20.5<MB←17.5, and the fraction of S0 galaxies with recent star formation is higher at fainter luminosities. The observed luminosity range of S0 galaxies with signs of recent star formation activity is consistent with them being the descendants of typical star-forming spirals at intermediate redshift whose star formation has been halted as a consequence of the dense environment.

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Journal keyword(s): Galaxies: Clusters: General - galaxies: clusters: individual (Coma) - Galaxies: Elliptical and Lenticular, cD - Galaxies: Evolution

Simbad objects: 7

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Number of rows : 7
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 ACO S 373 ClG 03 38 29.4 -35 27 08           ~ 2029 0
2 NAME NGC 4839 Group GrG 12 57 21.5 +27 31 54           ~ 86 0
3 NGC 4839 BiC 12 57 24.3563164776 +27 29 52.203087132 13.56 13.02 12.06     ~ 482 3
4 NGC 4874 LIN 12 59 35.7093764280 +27 57 33.293892204 13.01 13.7 12.71 12.27 11.386 ~ 814 3
5 ACO 1656 ClG 12 59 44.40 +27 54 44.9           ~ 5141 2
6 NGC 4889 EmG 13 00 08.097 +27 58 37.29 12.93 13.0 11.30 11.652 10.906 ~ 742 1
7 ACO 2218 ClG 16 35 54.0 +66 13 00           ~ 827 1

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