X-Ray Emission from Low-Mass Protostars in Two Small Dark Clouds

Details X-Ray Emission from Low-Mass Protostars in Two Small Dark Clouds X-Ray Emission from Low-Mass Protostars in Two Small Dark Clouds

Oct 2006

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006xmm..prop..141s&link_type=abstract

XMM-Newton Proposal ID #05036702

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Stars, White Dwarfs, Solar System, Rno15-Fir, L723-Vla2, Xmm-Newton Proposal 05036702

Scientific paper

A handful of Class I protostars have been detected in X rays, but no firmly established Class 0 object has ever been detected as an X ray source. I am proposing to obtain 30 ks pointings with XMM of two small dark cloud regions, each of which is known to harbor high-velocity molecular outflows, long chains of HH emission knots, and low-luminosity Class 0 IRAS sources. The goal of the observations is to determine whether the X ray and other physical properties of these objects and their surrounding environments are different from those of embedded protostars that form in much more massive clouds. Because of their lower density and mass, these small clouds may be more transparent to X-rays and hence more easily probed than a dense cloud like Orion.

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