Astronomy and Astrophysics – Astronomy
Scientific paper
Jan 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993a%26a...267..439r&link_type=abstract
Astronomy and Astrophysics (ISSN 0004-6361), vol. 267, no. 2, p. 439-446.
Astronomy and Astrophysics
Astronomy
11
H Alpha Line, Interstellar Matter, Star Formation, Stellar Mass, Stellar Spectra, Astronomical Photometry, Infrared Astronomy, Sky Surveys (Astronomy)
Scientific paper
We have surveyed five fields in the Gum Nebula containing cometary globules, in a search for new regions of low-mass star formation. Seven H-alpha emission stars were found in association with the CG4/CG6/Sa101 cloud complex, and one in association with the CG13 globule. All eight stars are late-type emission line stars, and appear to be low-mass pre-main sequence stars. Low dispersion spectra and optical and IR photometry are presented for the objects, as well as for PH-alpha 92, an already known young star in CG22. Most of the globules surveyed are not associated with H-alpha emission stars. We demonstrate that star formation has occurred in the Gum Nebula over several million years, right up to very recently.
Pettersson Bertil
Reipurth Bo
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