Observations Of CO 1-0 Line Emission In "normal" Star-forming Galaxies At z=1.5

Astronomy and Astrophysics – Astronomy

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Scientific paper

Observations of the CO 1-0 line emission in galaxies directly trace the molecular gas mass, being crucial to estimate the excitation conditions of the molecular gas. Here, we present the first detections of the CO 1-0 line in three BzK-selected galaxies at z=1.5 with the VLA and GBT. This observations allowed us to confirm the low excitation of the gas compared to that of QSOs at similar redshifts. New observations with the EVLA are crucial to measure the extent and kinematics of the cold gas component of the ISM in these "normal" star-forming galaxies at high-redshift.

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