dc.contributor.author | Walker-Smith, S | |
dc.contributor.author | Richer, J | |
dc.contributor.author | Buckle, J | |
dc.contributor.author | Salji, C | |
dc.contributor.author | Hatchell, J | |
dc.contributor.author | Drabek, E | |
dc.date.accessioned | 2021-01-29T12:27:14Z | |
dc.date.issued | 2013-07-01 | |
dc.description.abstract | We present the results of a large-scale survey of the very dense molecular gas in Perseus, Orion A and B, Serpens and Ophiuchus using HCO+ and HCN (J = 4 - 3) transitions. We have used this emission to trace the structure and kinematics of gas at the extremely high densities found in pre- and protostellar cores; as well as tracing outflows powered by these early star-forming cores. We present a comparison of the HCO+/HCN data, highlighting regions where there is a marked discrepancy in the spectra of the two emission lines. This is particularly noticeable in some of the more powerful outflows driven by Class 0 sources, where the HCN is greatly enhanced in the linewings in comparison with HCO+. We also use the HCO+ to positively identify protostellar outflows and their driving sources. We present a statistical analysis of the outflow properties that we derive from this tracer. We show that our results are comparable to those obtained from similar outflow analyses using 12CO. | en_GB |
dc.identifier.uri | http://hdl.handle.net/10871/124554 | |
dc.language.iso | en | en_GB |
dc.publisher | Protostars and Planets VI | en_GB |
dc.rights | © 2013 | en_GB |
dc.title | The JCMT dense gas survey in dense molecular clouds: an HCO+/HCN comparison | en_GB |
dc.type | Conference paper | en_GB |
dc.date.available | 2021-01-29T12:27:14Z | |
dc.description | Poster 1B001 presented at Protostars and Planets VI, Heidelberg, 15 - 20 July 2013 | en_GB |
dc.rights.uri | http://www.rioxx.net/licenses/all-rights-reserved | en_GB |
rioxxterms.version | VoR | en_GB |
rioxxterms.licenseref.startdate | 2013-07-01 | |
rioxxterms.type | Conference Paper/Proceeding/Abstract | en_GB |
refterms.dateFCD | 2021-01-29T12:26:22Z | |
refterms.versionFCD | VoR | |
refterms.dateFOA | 2021-01-29T12:27:25Z | |
refterms.panel | B | en_GB |