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Spitzer spectral line mapping of protostellar outflows: I. Basic data and outflow energetics
David A. Neufeld, Brunella Nisini, Teresa Giannini +7
We report the results of spectroscopic mapping observations carried out toward protostellar outflows in the BHR71, L1157, L1448, NGC 2071, and VLA 1623 molecular regions using the…
Far-Ultraviolet H2 Emission from Circumstellar Disks
Laura Ingleby, Nuria Calvet, Edwin Bergin +15
We analyze the far-ultraviolet (FUV) spectra of 33 classical T Tauri stars (CTTS), including 20 new spectra obtained with the Advanced Camera for Surveys Solar Blind Channel (ACS/S…
The Chemical Evolution of Protoplanetary Disks
Edwin A. Bergin
The origins of planets, and perhaps life itself, is intrinsically linked to the chemistry of planet formation. In this chapter we will attempt to explore the chemistry of planet-fo…
Molecular Line Observations of Infrared Dark Clouds II: Physical Conditions
David Gibson, Rene Plume, Edwin Bergin +2
Using a source selection biased towards high mass star forming regions, we used a Large Velocity Gradient (LVG) code to calculate the H2 densities and CS column densities for a sam…
Spitzer mapping of molecular hydrogen pure rotational lines in NGC 1333: A detailed study of feedback in star formation
Sebastien Maret, Edwin A. Bergin, David A. Neufeld +10
We present mid-infrared spectral maps of the NGC 1333 star forming region, obtained with the the Infrared Spectrometer on board the Spitzer Space Telescope. Eight pure H2 rotationa…
Detection of Structure in Infrared-Dark Clouds with Spitzer: Characterizing Star Formation in the Molecular Ring
Sarah E. Ragan, Edwin A. Bergin, Robert A. Gutermuth
We have conducted a survey of a sample of infrared-dark clouds (IRDCs) with the Spitzer Space Telescope in order to explore their mass distribution. We present a method for tracing…