Evaporation of Accretion Disks around Black Holes: The Disk-Corona Transition and the Connection to the Advection-dominated Accretion Flow.

Content Provider	Semantic Scholar
Author	Liu, W. Yuan, Fangting Meyer, H. C. H. Meyer-Hofmeister Xie, Qiuhong
Copyright Year	1999
Abstract	We apply the disk-corona evaporation model (Meyer & Meyer-Hofmeister) originally derived for dwarf novae to black hole systems. This model describes the transition of a thin cool outer disk to a hot coronal flow. The mass accretion rate determines the location of this transition. For a number of well-studied black hole binaries, we take the mass flow rates derived from a fit of the advection-dominated accretion flow (ADAF) model to the observed spectra (for a review, see Narayan, Mahadevan, & Quataert) and determine where the transition of accretion via a cool disk to a coronal flow/ADAF would be located for these rates. We compare this with the observed location of the inner disk edge, as estimated from the maximum velocity of the Halpha emission line. We find that the transition caused by evaporation agrees with this determination in stellar disks. We also show that the ADAF and the "thin outer disk + corona" are compatible in terms of the physics in the transition region.
Starting Page	L17
Ending Page	L20
Page Count	4
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://arxiv.org/pdf/astro-ph/9911051v2.pdf
PubMed reference number	10566989v1
Volume Number	527
Issue Number	1
Journal	The Astrophysical journal
Language	English
Access Restriction	Open
Subject Keyword	Dwarfism Flow Cytometry Prader-Willi habitus, osteopenia, and camptodactyly evaporation
Content Type	Text
Resource Type	Article