Relating basic properties of bright early-type dwarf galaxies to their location in Abell 901/902
We present a study of the population of bright early-type dwarf galaxies in the multiple-cluster system Abell 901/902. We use data from the STAGES survey and COMBO-17 to investigate the relation between the color and structural properties of the dwarfs and their location in the cluster. The definiti...
| Main Authors: | , , , , , , , , , , , , , , , , , , , , , , |
|---|---|
| Format: | Journal article |
| Language: | English |
| Published: |
2009
|
| _version_ | 1826272032281591808 |
|---|---|
| author | Barazza, F Wolf, C Gray, M Jogee, S Balogh, M McIntosh, D Bacon, D Barden, M Bell, E Boehm, A Caldwell, J Haeussler, B Heiderman, A Heymans, C Kampen, K Lane, K Marinova, I Meisenheimer, K Peng, C Sanchez, S Taylor, A Wisotzki, L Zheng, X |
| author_facet | Barazza, F Wolf, C Gray, M Jogee, S Balogh, M McIntosh, D Bacon, D Barden, M Bell, E Boehm, A Caldwell, J Haeussler, B Heiderman, A Heymans, C Kampen, K Lane, K Marinova, I Meisenheimer, K Peng, C Sanchez, S Taylor, A Wisotzki, L Zheng, X |
| author_sort | Barazza, F |
| collection | OXFORD |
| description | We present a study of the population of bright early-type dwarf galaxies in the multiple-cluster system Abell 901/902. We use data from the STAGES survey and COMBO-17 to investigate the relation between the color and structural properties of the dwarfs and their location in the cluster. The definition of the dwarf sample is based on the central surface brightness and includes galaxies in the luminosity range -16 >= M_B >~-19 mag. Using a fit to the color magnitude relation of the dwarfs, our sample is divided into a red and blue subsample. We find a color-density relation in the projected radial distribution of the dwarf sample: at the same luminosity dwarfs with redder colors are located closer to the cluster centers than their bluer counterparts. Furthermore, the redder dwarfs are on average more compact and rounder than the bluer dwarfs. These findings are consistent with theoretical expectations assuming that bright early-type dwarfs are the remnants of transformed late-type disk galaxies involving processes such as ram pressure stripping and galaxy harassment. This indicates that a considerable fraction of dwarf elliptical galaxies in clusters are the results of transformation processes related to interactions with their host cluster. |
| first_indexed | 2024-03-06T22:06:08Z |
| format | Journal article |
| id | oxford-uuid:50346fb0-edb5-444a-898e-59d05fbbbec6 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T22:06:08Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:50346fb0-edb5-444a-898e-59d05fbbbec62022-03-26T16:12:19ZRelating basic properties of bright early-type dwarf galaxies to their location in Abell 901/902Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:50346fb0-edb5-444a-898e-59d05fbbbec6EnglishSymplectic Elements at Oxford2009Barazza, FWolf, CGray, MJogee, SBalogh, MMcIntosh, DBacon, DBarden, MBell, EBoehm, ACaldwell, JHaeussler, BHeiderman, AHeymans, CKampen, KLane, KMarinova, IMeisenheimer, KPeng, CSanchez, STaylor, AWisotzki, LZheng, XWe present a study of the population of bright early-type dwarf galaxies in the multiple-cluster system Abell 901/902. We use data from the STAGES survey and COMBO-17 to investigate the relation between the color and structural properties of the dwarfs and their location in the cluster. The definition of the dwarf sample is based on the central surface brightness and includes galaxies in the luminosity range -16 >= M_B >~-19 mag. Using a fit to the color magnitude relation of the dwarfs, our sample is divided into a red and blue subsample. We find a color-density relation in the projected radial distribution of the dwarf sample: at the same luminosity dwarfs with redder colors are located closer to the cluster centers than their bluer counterparts. Furthermore, the redder dwarfs are on average more compact and rounder than the bluer dwarfs. These findings are consistent with theoretical expectations assuming that bright early-type dwarfs are the remnants of transformed late-type disk galaxies involving processes such as ram pressure stripping and galaxy harassment. This indicates that a considerable fraction of dwarf elliptical galaxies in clusters are the results of transformation processes related to interactions with their host cluster. |
| spellingShingle | Barazza, F Wolf, C Gray, M Jogee, S Balogh, M McIntosh, D Bacon, D Barden, M Bell, E Boehm, A Caldwell, J Haeussler, B Heiderman, A Heymans, C Kampen, K Lane, K Marinova, I Meisenheimer, K Peng, C Sanchez, S Taylor, A Wisotzki, L Zheng, X Relating basic properties of bright early-type dwarf galaxies to their location in Abell 901/902 |
| title | Relating basic properties of bright early-type dwarf galaxies to their
location in Abell 901/902 |
| title_full | Relating basic properties of bright early-type dwarf galaxies to their
location in Abell 901/902 |
| title_fullStr | Relating basic properties of bright early-type dwarf galaxies to their
location in Abell 901/902 |
| title_full_unstemmed | Relating basic properties of bright early-type dwarf galaxies to their
location in Abell 901/902 |
| title_short | Relating basic properties of bright early-type dwarf galaxies to their
location in Abell 901/902 |
| title_sort | relating basic properties of bright early type dwarf galaxies to their location in abell 901 902 |
| work_keys_str_mv | AT barazzaf relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT wolfc relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT graym relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT jogees relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT baloghm relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT mcintoshd relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT bacond relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT bardenm relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT belle relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT boehma relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT caldwellj relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT haeusslerb relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT heidermana relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT heymansc relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT kampenk relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT lanek relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT marinovai relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT meisenheimerk relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT pengc relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT sanchezs relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT taylora relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT wisotzkil relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 AT zhengx relatingbasicpropertiesofbrightearlytypedwarfgalaxiestotheirlocationinabell901902 |