Astronomy and Astrophysics – Astronomy
Scientific paper
Oct 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992mnras.258..705m&link_type=abstract
Monthly Notices of the Royal Astronomical Society (ISSN 0035-8711), vol. 258, no. 4, p. 705-714.
Astronomy and Astrophysics
Astronomy
17
Galactic Nuclei, Infrared Astronomy Satellite, Infrared Imagery, Milky Way Galaxy, Star Formation, Early Stars, H Ii Regions, Infrared Stars, Near Infrared Radiation, Stellar Luminosity
Scientific paper
A number of IRAS sources in the direction of the Galactic center and suspected of being regions of recent or current star formation have been investigated by means of direct near-infrared imaging and limited spectroscoy in a further attempt to clarify their nature. Near-infrared counterparts to the IRAS sources are selected from the various objects in the images on the basis of their near-infrared colors, coincidence with the 3.5-micron sources of Glass (1988), and general appearance. Photometry is derived from the images, and combined with the spectroscopy and with previously published results to determine whether indeed these sources are close to the Galactic center and whether they are young. In general, the sources have cool energy distributions and luminosities of early-type ZAMS stars. Most of them share the properties of young massive stars still embedded in dust cocoons, though two of them appear to be surrounded by a compact H II region. The new results generally confirm our earlier conclusion that star formation is ongoing in the vicinity of the Galactic center.
Glass I. I.
Moneti Andrea
Moorwood Alan
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