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An Upper Limit on the Stochastic Gravitational-Wave Background of Cosmological Origin
The LIGO Scientific Collaboration, the Virgo Collaboration
A stochastic background of gravitational waves is expected to arise from a superposition of a large number of unresolved gravitational-wave sources of astrophysical and cosmologica…
Testing Binary Population Synthesis Models with Hot Subdwarfs
Richard A. Wade, Ravi kumar Kopparapu
Models of binary star interactions have been successful in explaining the origin of field hot subdwarf (sdB) stars in short period systems, but longer-period systems that formed vi…
Stability of additional planets in and around the habitable zone of the HD 47186 Planetary System
Ravi kumar Kopparapu, Sean N. Raymond, Rory Barnes
We study the dynamical stability of an additional, potentially habitable planet in the HD 47186 planetary system. Two planets are currently known in this system: a "hot Neptune" wi…