Mapping and imaging of the galactic centre in the near infrared

Details Mapping and imaging of the galactic centre in the near infrared Mapping and imaging of the galactic centre in the near infrared

May 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982aipc...83...85s&link_type=abstract

IN: The galactic center; Proceedings of the Workshop, Pasadena, CA, January 7, 8, 1982 (A83-40676 19-90). New York, American Ins

Astronomy and Astrophysics

Astronomy

3

Astronomical Maps, Galactic Nuclei, Infrared Astronomy, Milky Way Galaxy, Near Infrared Radiation, Charge Coupled Devices, H Ii Regions, Interstellar Gas, Line Spectra, Nonthermal Radiation, Point Sources

Scientific paper

A cooled CCD has been used to produce an image of the galactic centre at an effective wavelength of 0.9 microns. The image shows two unresolved point sources separated by 3 arcseconds along the Galactic plane. These sources are very close to the compact non-thermal radio source, and the 2.2 micron source IRS-16. While it is possible that the new sources are a pair of highly reddened individual stars or compact clusters, it appears more likely that they are two compact HII regions seen via line emission. This conclusion is supported by a preliminary map of the region in Brackett gamma. The 1.2 micron continuum map shows an enhancement near one of the sources, but the other source is not apparent.

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