Grand-scale low-mass star formation in our Galaxy

Details Grand-scale low-mass star formation in our Galaxy Grand-scale low-mass star formation in our Galaxy

Feb 1990

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990ncimc..13..279c&link_type=abstract

Nuovo Cimento C, Serie 1 (ISSN 0390-5551), vol. 13 C, Jan.-Feb. 1990, p. 279-284.

Astronomy and Astrophysics

Astronomy

H Ii Regions, Milky Way Galaxy, Near Infrared Radiation, Star Formation, Infrared Astronomy Satellite, Molecular Clouds, Spectral Energy Distribution

Scientific paper

Preliminary results are reported from a search for regions of solar-type star formation in the Galaxy. An IRAS color-color (25-12 vs 60-25) plot of sources located near the Galactic plane at longitudes around 270 deg was constructed; sources with positive colors, globules, and CO hot spots (V/LSR/ = about +8.5 km/sec) were identified; and observations at 1-5 microns were obtained at ESO to evaluate the energy distributions of the candidate protostellar sources. It is found that most of these sources are in states of gravitational collapse or initial quasi-hydrostatic contraction toward the 'normal-star' or hydrogen-fusion stage. It is pointed out, however, that some (probably about 10 percent) of the candidates are actually background galaxies; more observations are needed to eliminate them from the sample.

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