Open AccessMass and Spin of GRS 1915 $+$ 105 Based on a Resonance Model of QPOs
Author(s) -
Shoji Kato
Publication year - 2004
Publication title -
publications of the astronomical society of japan
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.99
H-Index - 110
eISSN - 2053-051X
pISSN - 0004-6264
DOI - 10.1093/pasj/56.5.l25
Subject(s) - physics , oscillation (cell signaling) , spin (aerodynamics) , astrophysics , accretion disc , resonance (particle physics) , atomic physics , genetics , biology , thermodynamics
We demonstrate that the four high-frequency QPOs observed in GRS 1915+105 canbe interpreted as the oscillation modes on disks which non-linearly andresonantly interact with a warp. The warp is assumed to be a low-frequencyglobal pattern on the disk. This identification suggests that the relevantmass, $M$, and spin, $a$, of GRS 1915+105 are, $M=13\sim 14 M_\odot$ and$a=0\sim 0.15$Comment: 4 pages, 5 figures, accepted in PASJ Vol.56(2004) No.5, The English was improved on September
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