Computer Science
Scientific paper
Aug 2007
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2007noao.prop..425b&link_type=abstract
NOAO Proposal ID #2007B-0425
Computer Science
Scientific paper
We propose a narrow-band H(alpha), [SII], and partial [OIII] survey of the massive star and cluster forming complex containing the HII regions W3, W4, and W5 using the Mosaic CCD imager on the KPNO 4m. The W3/4/5 complex is a northern-hemisphere analog of the Carina Nebula; it has produced over 80 OB stars, several giant HII regions, and thousands of low mass stars. Our main goals are: [1] Investigate star formation in a region irradiated by nearly 100 times the UV radiation of the Orion Nebula. [2] Search for irradiated jets and Herbig-Haro outflows that are signposts of on-going accretion onto their central young stars. [3] Characterize the relationship between the Spitzer-identified young stars and clusters and the massive stars, their HII regions, and ionization fronts. [4] Probe the nature of Spitzer identified cometary clouds. [5] Obtain visual photometry of Spitzer identified YSOs. [6] Study the multiplicity fraction of young stars unresolved by Spitzer. [7] Probe the relationship of exotic objects such as the externally irradiated circumstellar ring WeBo 1 and the micro-quasar LSI+61 303 to the W3/4/5 complex and search for additional unique objects. [8] Study the superbubble ionization front of this region. Our survey will produce stunning images that will serve multiple public-outreach and educational purposes.
Allen Lori
Bally John
Koenig Xavier Paul
Megeath Tom
Smith Nathan
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