Is there LFIR-LHCN correlation for low LFIR isolated galaxies? Ocaña Flaquer, Breezy Leon, S. Espada Fernández, Daniel Lisenfeld , Ute Martín Ruiz, Sergio Sabater, J. Verdes-Montenegro, L. Verley, Simon Galaxies Isolated Molecular gas Star formation Póster We observed HCN(1-0) in 15 well isolated galaxies where 9 galaxies were clearly detected. The aim of these observations is to confirm the relationship between the (dense) molecular gas and star formation (SF) activity through the correlation found by [3][4] between the FIR and HCN luminosity. We find that the detected galaxies in HCN(1-9) have a lower HCN luminosity than the expected from the FIR-HCN correlation. This departure from the correlation may be due to an extended emission of the HCN(1-0) line in the galaxies. To prove this we mapped 4 galaxies that were clearly detected in HCN(1-0) at the center of the galaxy to measure their spatial extension and to get a more precise measurement of the total HCN (1-0) luminosity. The HCN(1-0) luminosity was compared to the CO(1-0) luminosity finding a ratio that implies that de galaxies in the sample have a low level of activity. 2013-10-11T12:16:32Z 2013-10-11T12:16:32Z 2009 other Ocaña Flaquer, B.; et al. Is there LFIR-LHCN correlation for low LFIR isolated galaxies? [póster]. In: Conference "Galaxies in Isolation: exploring nature us nurture", Granada, may 12-15, 2009. [http://hdl.handle.net/10481/28424] http://hdl.handle.net/10481/28424 eng http://creativecommons.org/licenses/by-nc-nd/3.0/ open access Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License