Hα Emission Stars in the Cepheus OB3 Region

Details Hα Emission Stars in the Cepheus OB3 Region Hα Emission Stars in the Cepheus OB3 Region

Mar 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001ap%26ss.275..441m&link_type=abstract

Astrophysics and Space Science, v. 275, Issue 4, p. 441-462 (2001).

Astronomy and Astrophysics

Astrophysics

4

Scientific paper

Hα emission objects were searched for, using the objective-prism Schmidt plates in a 36 deg^2 sky area covering the Cepheus OB3 association. Hundred and eight emission stars have been found, 68 of which are new findings to our knowledge. The properties of the IRAS point sources identified with Hα emission stars indicate that most of the Hα emission stars are T Tauri stars or related objects. Hα emission stars associated with IRAS sources and those unassociated have different distributions, suggesting an age sequence among them. Altogether, they show a ring- or shell-like surface distribution, which almost coincides with that of heated dusts, and these distributions appear to be encompassed by an HI shell.

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