Red and nebulous objects in dark clouds - A survey

Details Red and nebulous objects in dark clouds - A survey Red and nebulous objects in dark clouds - A survey

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aj.....85...29c&link_type=abstract

Astronomical Journal, vol. 85, Jan. 1980, p. 29-35.

Astronomy and Astrophysics

Astronomy

163

Astronomical Photography, Hot Stars, Nebulae, Stellar Radiation, T Tauri Stars, Classifications, Comets, Emission Spectra, Sky Surveys (Astronomy), Stellar Mass

Scientific paper

A search on the NGS-PO Sky Survey photographs has revealed 150 interesting nebulous and/or red objects, mostly lying in dark clouds and not previously catalogued. Spectral classifications are presented for 55 objects. These indicate a small number of new members of the class of Herbig-Haro objects, a significant number of new T Tauri stars, and a few emission-line hot stars. It is argued that hot, high-mass stars form preferentially in the dense cores of dark clouds. The possible symbiosis of high and low mass stars is considered. A new morphology class is defined for cometary nebulae, in which a star lies on the periphery of a nebulous ring.

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