The population I core of the Galaxy

Details The population I core of the Galaxy The population I core of the Galaxy

Aug 1994

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1994pasau..11..191a&link_type=abstract

Astronomical Society of Australia, Proceedings, vol. 11, no. 2, p. 191-193

Astronomy and Astrophysics

Astronomy

1

Galactic Nuclei, Galactic Structure, Radio Sources (Astronomy), Stellar Luminosity, Stellar Mass, Carbon Monoxide, Emission Spectra, Helium, Milky Way Galaxy, Radio Astronomy

Scientific paper

We demonstrate the presence of a cluster of hot, population I stars at the very center of the Galaxy, using the depth of the first overtone band of CO and the presence of emission in He I 2.058 microns and (Fe II) 1.644 microns to identify stars. The cluster is very compact and comprises at least several hundred stars. They lie close to the nonthermal radio source Sgr A* and dominate the luminosity and mass loss of the Galactic core. Their presence suggests that a starburst occurred at the Galactic center.

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