Ammonia Cores in Massive Star Formation

1
Ammonia Cores in Massive Star Formation

• Steve Longmore, UNSW, ATNF
• Michael Burton, UNSW
• Peter Barnes, U. Syd
• Cormac Purcell, UNSW

2
ATCA Observations

• Sample
• 25 sites of Massive Star Formation
• Selected from previous multi-wavelength surveys
• Variety of evolutionary stages
• Aim
• Uncover physical and kinematic properties of
  dense cores.
• Test the evolutionary paradigm
• Observations
• Snapshot imaging inversion transitions of Ammonia
• 2003 Detection
• 2004 (1,1), (2,2)
• 2005 (4,4),(5,5)

3
Results 2. Line Profiles
Large Asymmetries
4
Results 2. The Cool Cores
5
Results 3
6
(No Transcript)