A Deep Objective Prism Survey for Classical T Tauri Stars in the Sigma Orionis Region

Details A Deep Objective Prism Survey for Classical T Tauri Stars in the Sigma Orionis Region A Deep Objective Prism Survey for Classical T Tauri Stars in the Sigma Orionis Region

Dec 2000

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000aas...197.1011b&link_type=abstract

American Astronomical Society, 197th AAS Meeting, #10.11; Bulletin of the American Astronomical Society, Vol. 32, p.1414

Astronomy and Astrophysics

Astronomy

1

Scientific paper

Three degrees north of the Orion Nebula is a group of 15 B stars including Sigma Orionis. Kiso objective prism surveys have detected H-alpha emission-line objects in the area. There are about 100 X-ray sources within one degree of Sigma Ori. A very deep 1976 CTIO Curtis Schmidt objective prism plate taken under excellent conditions of the area has permitted us to search for fainter classical T Tauri stars associated with this cluster. We have discovered 60 H-alpha emission stars in the area to a limiting magnitude of about 17. Most of these stars are new additions to the growing list of PMS objects identified in this very dense, very young cluster.

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