Matches in SemOpenAlex for { <https://semopenalex.org/work/W2089011271> ?p ?o ?g. }
- W2089011271 abstract "We study the relationship between the [CII] emission and the star formation rate (SFR) in the Galactic plane and separate the relationship of different ISM phases to the SFR. We compare these relationships to those in external galaxies and local clouds, allowing examinations of these relationships over a wide range of physical scales. We compare the distribution of the [CII] emission, with its different contributing ISM phases, as a function of Galactocentric distance with the SFR derived from radio continuum observations. We also compare the SFR with the surface density distribution of atomic and molecular gas, including the CO-dark H2 component. The [CII] and SFR are well correlated at Galactic scales with a relationship that is in general agreement with that found for external galaxies. By combining [CII] and SFR data points in the Galactic plane with those in external galaxies and nearby star forming regions, we find that a single scaling relationship between the [CII] luminosity and SFR applies over six orders of magnitude. The [CII] emission from different ISM phases are each correlated with the SFR, but only the combined emission shows a slope that is consistent with extragalactic observations. These ISM components have roughly comparable contributions to the Galactic [CII] luminosity: dense PDRs (30%), cold HI (25%), CO-dark H2 (25%), and ionized gas (20%). The SFR-gas surface density relationship shows a steeper slope compared to that observed in galaxies, but one that it is consistent with those seen in nearby clouds. The different slope is a result of the use of a constant CO-to-H2 conversion factor in the extragalactic studies, which in turn is related to the assumption of constant metallicity in galaxies. We find a linear correlation between the SFR surface density and that of the dense molecular gas." @default.
- W2089011271 created "2016-06-24" @default.
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- W2089011271 date "2014-09-01" @default.
- W2089011271 modified "2023-09-27" @default.
- W2089011271 title "A Herschel [CII] Galactic plane survey III: [CII] as a tracer of star formation" @default.
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