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Conference Paper: HCN(1-0) maser emission by IR pumping from unresolved AGN disk/torus toward the Seyfert 2 nucleus of M51?

TitleHCN(1-0) maser emission by IR pumping from unresolved AGN disk/torus toward the Seyfert 2 nucleus of M51?
Authors
Issue Date2015
PublisherAstronomical Society of the Pacific.
Citation
The 2014 Tokyo International Forum on Revolution in Astronomy with ALMA: The Third Year, Tokyo, Japan, 8–11 December 2014. In ASP Conference Series, 2015, v. 499, p. 153 How to Cite?
AbstractWe present ˜1'' (˜34 pc) resolution observations of HCN(1-0) together with CO J=1-0, 2-1, and 3-2 toward the Seyfert 2 nucleus of M51 using IRAM PdBI and SMA. HCN shows a strong emission at the nucleus only at the systemic velocity, where no obvious CO emission. HCN(1-0)/CO(1-0) >2 at this region. Based on our radiative transfer calculations, we suggest that this strong HCN emission is affected by the IR pumping and possibly weak HCN masing. This suggests the presence of an edge-on rotating circumnuclear dense molecular gas disk or torus, which remains unresolved at our resolution.
Descriptionv.499 of this Conference Series entitled: Revolution in Astronomy with ALMA: The Third Year
Persistent Identifierhttp://hdl.handle.net/10722/232748
ISSN

 

DC FieldValueLanguage
dc.contributor.authorMatsushita, S-
dc.contributor.authorDinh, VT-
dc.contributor.authorBoone, F-
dc.contributor.authorKrips, M-
dc.contributor.authorLim, JJL-
dc.contributor.authorMuller, S-
dc.date.accessioned2016-09-20T05:32:02Z-
dc.date.available2016-09-20T05:32:02Z-
dc.date.issued2015-
dc.identifier.citationThe 2014 Tokyo International Forum on Revolution in Astronomy with ALMA: The Third Year, Tokyo, Japan, 8–11 December 2014. In ASP Conference Series, 2015, v. 499, p. 153-
dc.identifier.issn9781583818824-
dc.identifier.urihttp://hdl.handle.net/10722/232748-
dc.descriptionv.499 of this Conference Series entitled: Revolution in Astronomy with ALMA: The Third Year-
dc.description.abstractWe present ˜1'' (˜34 pc) resolution observations of HCN(1-0) together with CO J=1-0, 2-1, and 3-2 toward the Seyfert 2 nucleus of M51 using IRAM PdBI and SMA. HCN shows a strong emission at the nucleus only at the systemic velocity, where no obvious CO emission. HCN(1-0)/CO(1-0) >2 at this region. Based on our radiative transfer calculations, we suggest that this strong HCN emission is affected by the IR pumping and possibly weak HCN masing. This suggests the presence of an edge-on rotating circumnuclear dense molecular gas disk or torus, which remains unresolved at our resolution.-
dc.languageeng-
dc.publisherAstronomical Society of the Pacific.-
dc.relation.ispartofASP Conference Series-
dc.titleHCN(1-0) maser emission by IR pumping from unresolved AGN disk/torus toward the Seyfert 2 nucleus of M51?-
dc.typeConference_Paper-
dc.identifier.emailLim, JJL: jjlim@hku.hk-
dc.identifier.authorityLim, JJL=rp00745-
dc.identifier.hkuros263787-
dc.identifier.volume499-
dc.identifier.spage153-
dc.identifier.epage153-
dc.publisher.placeUnited States-

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