SIMBAD references

2025ApJ...981..110L - Astrophys. J., 981, 110 (2025/March-2)

Building on the Archives: Connecting the CN/CO Intensity Ratio with Global Galaxy Properties in Nearby U/LIRGs.

LEDGER B., WILSON C.D., KLIMI O., TORRES-ALBA N. and SAITO T.

Abstract (from CDS):

We use the CN/CO intensity ratio to obtain the dense gas fraction, fdense, for a sample of 16 ultraluminous and luminous infrared (IR) galaxies and compare fdense with a suite of global galaxy properties. We find a significant correlation between fdense and star formation rate calculated using both IR luminosities and radio continuum, although there is significant scatter in each relation. We find no trend between global or peak fdense and merger stage. We find no correlation between global fdense and X-ray luminosity; however, the correlation becomes significant when we measure fdense at the location of peak X-ray emission. Our interpretation is that the dense gas is co-localized with strong X-ray emission from active galactic nuclei or strong central star formation.

Abstract Copyright: © 2025. The Author(s). Published by the American Astronomical Society.

Journal keyword(s): Active galaxies - Interstellar medium - Ultraluminous infrared galaxies - Starburst galaxies - Seyfert galaxies - Luminous infrared galaxies - Interacting galaxies - AGN host galaxies - Star formation - Molecular gas - Active galactic nuclei - Galaxy nuclei

Simbad objects: 18

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