Is the 6.4 KEV Island SGR b2 AN X-Ray Reflection Nebula ?

Details Is the 6.4 KEV Island SGR b2 AN X-Ray Reflection Nebula ? Is the 6.4 KEV Island SGR b2 AN X-Ray Reflection Nebula ?

Sep 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999cxo..prop...46k&link_type=abstract

Chandra Proposal ID #01910375

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Chandra Proposal Id #01910375

Scientific paper

With ASCA we found an extremely bright 6.4-keV line emitting region at the molecular cloud Sgr B2: the 6.4-keV island. X-ray spectrum, and spatial extensions of the island are consistent with those expected by X-ray irradiation on Sgr B2 from an outside source, hence may be called an X-ray reflection nebula: a new category of X-ray sources. Limited spatial resolution of ASCA, however, prevents us quantitative study on this interesting object. With superior resolving power of AXAF, we propose to study details on it. Main objectives are, (1) make further confirmation that Sgr B2 X-rays are really due to reflection of other X-ray source (s) and make a realistic picture of the reflection, (2) search for star forming activity, and (3) give strong constraint on the irradiating X-ray source(s).

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