I show that when the observables (π<sub>E</sub>, t<sub>E</sub>, θ<sub>E</sub>, π<sub>s</sub>, µ<sub>s</sub>) are well measured up to a discrete degeneracy in the m...
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https://www.riss.kr/link?id=A107102460
2020
English
SCIE,SCOPUS,KCI등재
학술저널
99-102(4쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
I show that when the observables (π<sub>E</sub>, t<sub>E</sub>, θ<sub>E</sub>, π<sub>s</sub>, µ<sub>s</sub>) are well measured up to a discrete degeneracy in the m...
I show that when the observables (π<sub>E</sub>, t<sub>E</sub>, θ<sub>E</sub>, π<sub>s</sub>, µ<sub>s</sub>) are well measured up to a discrete degeneracy in the microlensing parallax vector π<sub>E</sub>, the relative likelihood of the different solutions can be written in closed form P<sub>i</sub> = KH<sub>i</sub>B<sub>i</sub>, where H<sub>i</sub> is the number of stars (potential lenses) having the mass and kinematics of the inferred parameters of solution i and B<sub>i</sub> is an additional factor that is formally derived from the Jacobian of the transformation from Galactic to microlensing parameters. Here t<sub>E</sub> is the Einstein timescale, θ<sub>E</sub> is the angular Einstein radius, and (π<sub>s</sub>, µ<sub>s</sub>) are the (parallax, proper motion) of the microlensed source. The Jacobian term B<sub>i</sub> constitutes an explicit evaluation of the "Rich Argument", i.e., that there is an extra geometric factor disfavoring large-parallax solutions in addition to the reduced frequency of lenses given by H<sub>i</sub>. I also discuss how this analytic expression degrades in the presence of finite errors in the measured observables.
SPATIALLY RESOLVED KINEMATICS OF GAS AND STARS IN HIDDEN TYPE 1 AGNS