CSIRO Publishing Books Journals About Us Shopping Cart You are here: Journals > PASA   
PASA
  Publications of the Astronomical Society of Australia
 
Search
 
 
  Advanced Search
   

Journal Home
About the Journal
Editorial Board
Contacts
Content
Online Early
Current Issue
Just Accepted
All Issues
Special Issues
Sample Issue
Call for Proposals
For Authors
General Information
Instructions to Authors
Submit Article
Open Access
For Referees
General Information
Review Article
For Subscribers
Subscription Prices
Customer Service

 Early Alert
Subscribe to our email Early Alert or RSS feeds for the latest journal papers.

 Connect with us
facebook   youtube

Training

Publication Workshops


 

Article << Previous     |     Next >>   Contents Vol 24(2)

Hα Emission from the Magellanic Bridge

E. Muller A D, Q. A. Parker B C

A Bolton Fellow, Australia Telescope National Facility, CSIRO, P.O. Box 76, Epping NSW 1710, Australia
B Department of Physics, Macquarie University, Sydney NSW 2109, Australia
C Anglo-Australian Observatory, Epping NSW 1710, Australia
D Corresponding author. Email: erik.muller@csiro.au
 
 Full Text
 PDF (1.2 MB)
 Export Citation
 Print
  


Abstract

We present here a preliminary report and commentary of recently processed observations of Hα emission towards the Magellanic Bridge. These data have been analysed in an attempt to quantify the extent to which the stellar population is capable of reshaping the local ISM. We find that the Hα emission regions are small, weak and sparsely distributed, consistent with a relatively quiescent and inactive ISM where radiative and collisional ionisation is inefficient and sporadic. This suggests that energetic processes at the small scale (i.e. ~tens of pc) do not dominate the energy balance within the ISM of the Bridge, which therefore hosts a pristine turbulent structure, otherwise inaccessible within our own Galaxy. We find Hα emission that is well correlated with detected 12CO(1–0) line emission (a proxy for molecular hydrogen), as well as other easily identified ring-like Hi features.

Keywords: Turbulence — ISM: structure — galaxies: ISM — galaxies: interactions — stars: activity


   
    


 
Top  Email this page
 
Legal & Privacy | Contact Us | Help

CSIRO

© CSIRO 1996-2012