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Discovering habitable Earths, hot Jupiters and other close planets with microlensing
Rosanne Di Stefano
Searches for planets via gravitational lensing have focused on cases in which the projected separation, a, between planet and star is comparable to the Einstein radius, R_E. This p…
Periodic Signals in Binary Microlensing Events
Xinyi Guo, Ann Esin, Rosanne Di Stefano +1
Gravitational microlensing events are powerful tools for the study of stellar populations. In particular, they can be used to discover and study a variety of binary systems. A larg…
Effects of supermassive binary black holes on gravitational lenses
Nan Li, Shude Mao, Liang Gao +2
Recent observations indicate that many if not all galaxies host massive central black holes (BHs). In this paper we explore the influence of supermassive binary black holes (SMBBHs…
On the Nature of the Progenitor of the Type Ia SN2011fe in M101
Jifeng Liu, Rosanne Di Stefano, Tao Wang +1
The explosion of a Type Ia supernova, SN 2011ef, in the nearby Pinwheel galaxy (M101 at 6.4 Mpc) provides an opportunity to study pre-explosion images and search for the progenitor…
Spin-Up/Spin-Down models for Type Ia Supernovae
R. Di Stefano, R. Voss, J. S. W. Claeys
In the single degenerate scenario for Type Ia supernova (SNeIa), a white dwarf (WD) must gain a significant amount of matter from a companion star. Because the accreted mass carrie…