ALFALFA

ALFALFA Graduate Student Project

Proposal Title: Bar Fraction in the Virgo Cluster
Student Name: Lea Giordano
Adviser: Kim-Vy Tran and Ben Moore
Context: Part of Ph.D. thesis
Institution: ITP Zurich
Time frame: (e.g. mid-2008, etc.) 2008--
Other collaborators: Amélie Saintonge
Publication expected? yes, 2008+

Description: (up to ~ 500 words)

In the current evolutionary scenario galaxies can undergo bar instability both from secular evolution and from interactions with the environment (galaxy-galaxy interactions, galaxy-cluster interactions...). In the latter case, the cluster environment is also expected to deplete the galaxies from their gas content. We are using near-infrared data, from UKIDSS LAS, to estimate the fraction of barred galaxies in the Virgo cluster in relation to their morphology. We will use the ALFALFA catalog in the region of Virgo cluster to cross-identify the selected galaxies from UKIDSS LAS and to have a measure of their HI mass. We are looking for a possible correlation between the bars and the gas deficiency, in relation both to morphology and stellar mass.



ALFALFA region:Virgo cluster catalog
ALFALFA data to be used: Catalog datasets
Other data sets to be used: UKIDSS LAS J-H-K imaging and source catalog


This page created and maintained by members of the Cornell ExtraGalactic Group

Last modified: Tue Mar 18 08:30:45 EDT 2008 by martha