A compact radio component in 4C 41.17 at z=3.8: a massive clump in a forming galaxy?

Details A compact radio component in 4C 41.17 at z=3.8: a massive clump in a forming galaxy? A compact radio component in 4C 41.17 at z=3.8: a massive clump in a forming galaxy?

Feb 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997a%26a...318...11g&link_type=abstract

Astronomy and Astrophysics, v.318, p.11-14

Astronomy and Astrophysics

Astrophysics

5

Galaxies: Individual: 4C 41.17, Radio Continuum: Galaxies, Galaxies: Jets, Galaxies: Star Clusters

Scientific paper

We present the results of a study of the centiarcsecond radio structure at wavelength of 18 cm in the high-redshift galaxy associated with the radio source 4C 41.17 (z=3.8). We have detected a component of size not more than 15 mas (=~65pc, H_0_=75km/s/Mpc, q_0_=0.5) at a distance of =~2.9kpc from the nucleus of the galaxy which accounts for ~30% of the flux density of the previously known unresolved VLA component. We speculate that the radio component is associated with a clump in the interstellar medium. The estimate of its mass, 1.5x10^8^Msun_, is consistent with those of subgalactic structures preceding formation of globular clusters in the early stages of the evolution of galaxies.

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