Forbidden C I emission at Z = 2.286 in the protogalaxy IRAS F10214 + 4724

Details Forbidden C I emission at Z = 2.286 in the protogalaxy IRAS F10214 + 4724 Forbidden C I emission at Z = 2.286 in the protogalaxy IRAS F10214 + 4724

Sep 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992apj...397l..11b&link_type=abstract

Astrophysical Journal, Part 2 - Letters (ISSN 0004-637X), vol. 397, no. 1, p. L11-L14.

Astronomy and Astrophysics

Astronomy

20

Emission Spectra, Galactic Evolution, Molecular Gases, Carbon Monoxide, Ground State, Infrared Astronomy Satellite, Red Shift, Spectral Emission

Scientific paper

Forbidden C I emission in both the 3P2-3P1 and 3P1-3P0 ground-state fine-structure lines has been detected at a redshift of z = 2.286 in the protogalaxy IRAS F10214 + 4724. Like the CO emission observed in this source, the forbidden C I emission suggests that the line emission region is structured over spatial scales greater than 12 arcsec. Estimates for the amount of molecular gas in the source are 1 x 10 exp 12/sq h to 2 x 10 exp 13/sq h solar masses, comparable to those based on CO data and comparable also to the total dynamical mass in the system. IRAS F10214 + 4724, a largely gaseous system bathed in ultraviolet light, exhibits the principal characteristics of a protogalaxy.

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