Computer Science
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007jena.confe..61c&link_type=abstract
"JENAM-2007, "Our non-stable Universe", held 20-25 August 2007 in Yerevan, Armenia. Abstract book, p. 61-61"
Computer Science
Scientific paper
Dwarf elliptical galaxies (dE's) are numerically dominant population in clusters, however understanding their formation and evolution remains a challenging task, in particular, because these objects are very difficult to observe due to low surface brightness. We performed 3D spectroscopy of a handful of dE's in the Virgo cluster and nearby groups using MPFS IFU spectrograph at the Russian 6-m telescope, and obtained spatially resolved maps of internal kinematics and luminosity-weighted stellar population parameters using novel stellar population fitting technique. Nearly all observed galaxies exhibit presence of kinematically and/or evolutionary embedded structures: embedded stellar disc is revealed in IC3653 (Virgo), young nuclear structures are discovered in three Virgo dE's: IC783, IC3468, IC3509, young metal-rich counter-rotating stellar disc is seen in NGC770 (NGC772 group). What is the origin of these structures? They undoubtedly strengthen connection between early and late-type dwarfs. Ram pressure stripping turns to be the most favourable scenario in clusters, while in the groups slow accretion of cold gas from gas-rich companion with following star-formation in situ may also play an important role.
Afanasiev Viktor
Chilingarian Igor
Prugniel Philippe
Sil'chenko Olga
No associations
LandOfFree
Embedded Structures and Young Nuclei in dE Galaxies: 3D Spectroscopic View does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Embedded Structures and Young Nuclei in dE Galaxies: 3D Spectroscopic View, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Embedded Structures and Young Nuclei in dE Galaxies: 3D Spectroscopic View will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1812657