Other
Scientific paper
Aug 2008
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008noao.prop..463s&link_type=abstract
NOAO Proposal ID #2008B-0463
Other
Scientific paper
We propose to conduct a near-infrared JHK full imaging survey of the W3/4/5 star forming complex down to ~20 mag, ~5 mag deeper than 2MASS. Select regions within W3/4/5 of new jet and outflow sources require H_2, [Fe II], and (in some cases) Br(gamma) imaging. This will complete our ground-based survey, providing essential data on the residing stellar populations, outflows and jets, and interaction of the ionizing OB stellar radiation with the ISM and dense molecular gas (pillars) in which active star formation is occurring. The main objectives are: [1] combine the JHK photometry with optical and Spitzer data to construct complete color-color and magnitude-color diagrams, yielding spatial resolved luminosity and mass functions of the various complexes; [2] identify which Bolocam 1.1(micron) cores contain stars; [3] obtain critical narrow-band imaging of key YSOs (jet, outflow, and proplyd/cometary sources) previously identified from our Mayall 4m MOSAIC H(alpha), [S II], and i-band imaging survey (2007B: Bally N0425) - these provide direct evidence and insight for recent (triggered?) star formation; [4] combine these data with our other extensive multi-wavelength data to investigate spatially segregated age gradients, and definitively determine whether triggered and sequential star formation has occurred.
Allen Lori
Bally John
Ginsburg Adam
Koenig Xavier
Probst Ron
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