Newly-Discovered Regions of Star Formation in Serpens and Perseus

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Stars, White Dwarfs, Solar System, Southern Cluste, Xmm-Newton Proposal 04028201

Scientific paper

We propose EPIC observations of two fields in Serpens and one in Perseus centered on newly discovered regions of recent star formation. Spitzer IR maps of these regions reveal dense molecular gas and numerous previously unknown PMS stars, diverse in both mass and age. Comparison of the IR disk and X-ray coronal properties will allow detailed characterization of the individual stars and investigation of evolutionary trends in different regions. Young stars are strong X-ray emitters throughout their PMS evolution, from embedded protostars to older dust-free (and hence IR-faint) PMS stars. X-ray emission provides an excellent method of tracing the entire PMS population and investigating the star formation histories of these regions and the processes controlling the fragmentation and formation of stars.

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