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Please use this identifier to cite or link to this item: http://hdl.handle.net/10481/28424

Title: Is there LFIR-LHCN correlation for low LFIR isolated galaxies?
Authors: Ocaña Flaquer, Breezy
Leon, S.
Espada, D.
Lisenfeld, Ute
Martín Ruiz, Sergio
Sabater, J.
Verdes-Montenegro, L.
Verley, S.
Issue Date: 2009
Abstract: 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.
Keywords: Galaxies
Molecular gas
Star formation
URI: http://hdl.handle.net/10481/28424
Rights : Creative Commons Attribution-NonCommercial-NoDerivs 3.0 License
Citation: 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]
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