NOAO >   Observing Info >   Approved Programs >   2009A-0363

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Proposal Information for 2009A-0363


PI: John K Parejko, Drexel University, parejkoj@drexel.edu
Address: Physics Department, 3141 Chestnut St., Philadelphia, PA 19104, USA

CoI: Michael S. Vogeley, Drexel University
CoI: Danny Pan, Drexel University
CoI: Amanda White, Drexel University

Title: Investigating the properties of interacting void galaxies from the SDSS

Abstract: Galaxies in the most underdense regions of the universe, the voids, have quite different evolutionary histories than those in more dense regions. In particular, the frequency of interactions and their histories (major and minor mergers) are strongly affected by this low density environment. A galaxy's merger history determines the growth rate of its central black hole, which is estimated from the nuclear emission-line properties. We propose to observe potentially interacting void galaxies identified from the Sloan Digital Sky Survey (SDSS) in order to look for merger-induced star-formation and active galactic nucleus (AGN) activity. The results will help determine the effects of environment on galaxy evolution and help address the issue of the "void phenomenon;" the apparent lack of faint galaxies in void regions.


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NOAO >   Observing Info >   Approved Programs >   2009A-0363

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