A New Stellar Nursery in the Southern Cross

Details A New Stellar Nursery in the Southern Cross A New Stellar Nursery in the Southern Cross

Aug 1996

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1996aj....112..693p&link_type=abstract

Astronomical Journal v.112, p.693

Astronomy and Astrophysics

Astronomy

7

Stars: Pre-Main Sequence, X-Rays: Stars

Scientific paper

The β cephei variable β Cru was the focus of a pointed observation using the PSPC aboard ROSAT during the AO4 observation cycle. The field contains the target star β Cru, an x-ray binary 4U 1246-58, and several previously unidentified x-ray sources and diffuse emission with a complicated morphology. The data for the brightest 6 previously unidentified sources suggest an identification as T Tauri stars. We present the x-ray timing and spectral data for these candidate T Tauri stars along with data on their possible optical counterparts. From the anticorrelation of the observed x-ray flux with observations in the infrared utilizing archival IRAS data, the complicated diffuse emission structure appears to be the result of shadowing of the Galactic x-ray background by foreground molecular gas.

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