File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: A massive thick disc around a massive black hole and its runaway instability

TitleA massive thick disc around a massive black hole and its runaway instability
Authors
KeywordsAccretion, accretion discs
Black hole physics
Instabilities
Issue Date2000
PublisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/MNR
Citation
Monthly Notices Of The Royal Astronomical Society, 2000, v. 314 n. 3, p. 453-458 How to Cite?
AbstractWe investigate the runaway instability of configurations consisting of a massive dense but non-self-gravitating thick disc/torus surrounding a massive black hole (MBH). We limit our model parameters to values that result in a self-consistent thick disc around an MBH. We identify, analytically, the index of the angular momentum distribution that will form a thick disc as an initial equilibrium state, and obtain the mass ratio of the disc to the central black hole for which the disc is dominated by the radiation pressure. In our theoretical framework we find that a self-consistent thick disc with constant angular momentum leads to a runaway instability on a dynamical time-scale. However, even a slight increase of the specific angular momentum outwards has a strong stabilizing effect on the accretion process. Finally, we discuss our results and present possible applications to high-energy emission.
Persistent Identifierhttp://hdl.handle.net/10722/80943
ISSN
2015 Impact Factor: 4.952
2015 SCImago Journal Rankings: 2.806
References

 

DC FieldValueLanguage
dc.contributor.authorLu, Yen_HK
dc.contributor.authorCheng, KSen_HK
dc.contributor.authorYang, LTen_HK
dc.contributor.authorZhang, Len_HK
dc.date.accessioned2010-09-06T08:12:00Z-
dc.date.available2010-09-06T08:12:00Z-
dc.date.issued2000en_HK
dc.identifier.citationMonthly Notices Of The Royal Astronomical Society, 2000, v. 314 n. 3, p. 453-458en_HK
dc.identifier.issn0035-8711en_HK
dc.identifier.urihttp://hdl.handle.net/10722/80943-
dc.description.abstractWe investigate the runaway instability of configurations consisting of a massive dense but non-self-gravitating thick disc/torus surrounding a massive black hole (MBH). We limit our model parameters to values that result in a self-consistent thick disc around an MBH. We identify, analytically, the index of the angular momentum distribution that will form a thick disc as an initial equilibrium state, and obtain the mass ratio of the disc to the central black hole for which the disc is dominated by the radiation pressure. In our theoretical framework we find that a self-consistent thick disc with constant angular momentum leads to a runaway instability on a dynamical time-scale. However, even a slight increase of the specific angular momentum outwards has a strong stabilizing effect on the accretion process. Finally, we discuss our results and present possible applications to high-energy emission.en_HK
dc.languageengen_HK
dc.publisherBlackwell Publishing Ltd. The Journal's web site is located at http://www.blackwellpublishing.com/journals/MNRen_HK
dc.relation.ispartofMonthly Notices of the Royal Astronomical Societyen_HK
dc.subjectAccretion, accretion discsen_HK
dc.subjectBlack hole physicsen_HK
dc.subjectInstabilitiesen_HK
dc.titleA massive thick disc around a massive black hole and its runaway instabilityen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0035-8711&volume=314&spage=453&epage=458&date=2000&atitle=A+Massive+Thick+Disc+around+a+Massive+Black+Hole+and+Its+Runaway+Instabilityen_HK
dc.identifier.emailCheng, KS: hrspksc@hkucc.hku.hken_HK
dc.identifier.authorityCheng, KS=rp00675en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1046/j.1365-8711.2000.03253.x-
dc.identifier.scopuseid_2-s2.0-0041349148en_HK
dc.identifier.hkuros55903en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0041349148&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume314en_HK
dc.identifier.issue3en_HK
dc.identifier.spage453en_HK
dc.identifier.epage458en_HK
dc.publisher.placeUnited Kingdomen_HK
dc.identifier.scopusauthoridLu, Y=7405476987en_HK
dc.identifier.scopusauthoridCheng, KS=9745798500en_HK
dc.identifier.scopusauthoridYang, LT=7406277255en_HK
dc.identifier.scopusauthoridZhang, L=9432987500en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats