Results 111 to 120 of about 166,810 (242)

A Disk-originated 329 Day Quasiperiodic Oscillation in the Seyfert 1 Galaxy J1626+5120

open access: yesThe Astrophysical Journal Letters
The Seyfert 1 galaxy J1626+5120 is estimated to host a 10 ^8 M _⊙ black hole (BH) accreting at Eddington ratio ${\dot{m}}_{\,\rm{Edd}\,}\approx 0.043$ . Its long-term multiband light-curve data show flicker-like variations, but in a well-sampled g -band ...
Litao Zhu   +4 more
doaj   +1 more source

Hopf bifurcation for a class of predator-prey system with small immigration

open access: yesElectronic Research Archive
The subject of this paper concerns with the bifurcation of limit cycles for a predator-prey model with small immigration. Since, in general, the biological systems are not isolated, taking into account immigration in the model becomes more realistic.
Maurıicio F. S. Lima, Jaume Llibre
doaj   +1 more source

Hyperbolic periodic orbits

open access: yesJournal of Differential Equations, 1977
David L. Rod   +2 more
openaire   +2 more sources

Analysis of motion in RTBP with variable mass based on Loglogistic distribution

open access: yesResults in Physics
Recent literature has stated that the physical characteristics of natural satellites in Jupiter’s Ananke and Carme groups, such as mass, exhibit the same statistical law, with the best-fitting distribution being a Loglogistic distribution.
Fabao Gao   +3 more
doaj   +1 more source

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