Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992acaps..11..344l&link_type=abstract
(Acta Astrophysica Sinica, vol. 11, no. 4, 1991, p. 344-351) Chinese Astronomy and Astrophysics (ISSN 0275-1062), vol. 16, no. 1
Astronomy and Astrophysics
Astronomy
1
Emission Spectra, Infrared Sources (Astronomy), O Stars, Star Formation, Cosmic Dust, Diffuse Radiation, H Ii Regions, Open Clusters
Scientific paper
Using IRAS data, the infrared emission character of the star-forming region CMa OB1/R1 complex was studied in detail and compared with the optical, CO, and radio continuum observations. The results show that the emission from this complex consists of a diffuse emission and several discrete sources. The infrared diffuse emission can be explained by two O stars, but the extended H II region may be the combined result of a remnant of an old H II region and those two O stars, which are still on the main sequence. Most of the discrete sources correspond to the emission or reflection nebulae, but a few have no optical counterparts. The latter may be excited by early-type stars just arriving at the main sequence and still embedded in dense dust cloud.
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