High resolution K-band images of the Galactic centre

Details High resolution K-band images of the Galactic centre High resolution K-band images of the Galactic centre

Jul 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993ap%26ss.205....1h&link_type=abstract

Astrophysics and Space Science (ISSN 0004-640X), vol. 205, no. 1, p. 1-4.

Astronomy and Astrophysics

Astronomy

Angular Resolution, Galactic Nuclei, Infrared Imagery, Radio Sources (Astronomy), Cameras, High Resolution, Ultrahigh Frequencies

Scientific paper

A new near-IR camera, SHARP (System for High Angular Resolution Pictures), has been used at the 3.25 m ESO NTT to produce near-diffraction-limited K-band images of the Galactic center region. The new images show a substantial improvement in resolution and sensitivity over previous K-band images. IRS 16 splits into about 20 compact sources, the extended ridge in IRS 16 W-E is resolved into at least five stellar components, and a faint source (K = 13.7 +/- 0.6) is detected at the position of SgrA. Measurement of proper motions of the stellar sources within a few arcseconds of this source will allow us to determine the central mass within the next few years.

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