Abstract

We report the results of X{ray (2{10 keV) observations of the giant molecular clouds Sgr B, Sgr C and Sgr D in the Galactic Center region, together with the discovery of the point-like source SAX J1748.2{2808. The data have been obtained with the MECS instrument on the BeppoSAX satellite. The core of Sgr B2 has an X{ray luminosity of6 10 34 erg s 1 and its spectrum is characterized by a strong Fe emission line at6.5 keV with an equivalent width of 2 keV. Faint diuse X{ray emission is detected from Sgr C and from the SNR G1.05{0.15 (Sgr D). A new, unresolved source with a strong Fe line has been discovered in the Sgr D region. This source, SAX J1748.2{2808, is probably associated with a SiO and OH maser source at the Galactic Center distance. If so, its luminosity is 10 34 erg s 1 . We propose that the X{ray emission from SAX J1748.2{2808 is produced either by protostars or by a giant molecular cloud core. Emission from sources similar to SAX J1748.2{2808 could have an impact on the expected contribution on the observed Fe line emission from the Galactic ridge.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.