Kinematics of the Broad Line Region in M81

dc.contributor.author	Shearer, Andrew	en
dc.date.accessioned	2011-03-10T16:58:03Z	en
dc.date.available	2011-03-10T16:58:03Z	en
dc.date.issued	2007	en
dc.identifier.citation	Nick Devereux, Andrew Shearer...(2007)Kinematics of the Broad Line Region in M81, Nick Devereux, Andrew Shearer	en
dc.identifier.uri	http://hdl.handle.net/10379/1733	en
dc.description.abstract	A new model is presented which explains the origin of the broad emission lines observed in the LINER/Seyfert nucleus of M81 in terms of a steady state spherically symmetric inflow, amounting to 1 x 10^-5 Msun/yr, which is sufficient to explain the luminosity of the AGN. The emitting volume has an outer radius of ~1 pc, making it the largest broad line region yet to be measured, and it contains a total mass of ~ 5 x 10^-2 Msun of dense, ~ 10^8 cm^-3, ionized gas, leading to a very low filling factor of ~ 5 x 10^-9. The fact that the BLR in M81 is so large may explain why the AGN is unable to sustain the ionization seen there. Thus, the AGN in M81 is not simply a scaled down quasar.	en
dc.format	application/pdf	en
dc.language.iso	en	en
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Ireland
dc.rights.uri	https://creativecommons.org/licenses/by-nc-nd/3.0/ie/
dc.subject	Astrophysics	en
dc.title	Kinematics of the Broad Line Region in M81	en
dc.type	Article	en
dc.local.publishedsource	http://arxiv.org/pdf/0708.0396	en
dc.description.peer-reviewed	peer-reviewed	en
dc.local.authors	Nick Devereux, Andrew Shearer	en
dc.local.arxivid	0708.0396	en
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