Results 21 to 30 of about 13,207 (147)
Precise radial velocities of giant stars VIII. Testing for the presence of planets with CRIRES Infrared Radial Velocities [PDF]
We have been monitoring 373 very bright (V < 6 mag) G and K giants with high precision optical Doppler spectroscopy for more than a decade at Lick Observatory.
Quirrenbach, Andreas +4 more
core +2 more sources
Transverse Evolution Operator for the Gross-Pitaevskii Equation in Semiclassical Approximation [PDF]
The Gross-Pitaevskii equation with a local cubic nonlinearity that describes a many-dimensional system in an external field is considered in the framework of the complex WKB-Maslov method.
Borisov, Alexey +2 more
core +2 more sources
The genome diversity and karyotype evolution of mammals
The past decade has witnessed an explosion of genome sequencing and mapping in evolutionary diverse species. While full genome sequencing of mammals is rapidly progressing, the ability to assemble and align orthologous whole chromosome regions from more ...
Trifonov Vladimir A +2 more
doaj +1 more source
Exact Solutions for the General Nonstationary Oscillator with a Singular Perturbation [PDF]
Three linearly independent Hermitian invariants for the nonstationary generalized singular oscillator (SO) are constructed and their complex linear combination is diagonalized.
Trifonov, D. A.
core +6 more sources
The K-type star TOI-2525 has an estimated mass of M = ${0.849}_{-0.033}^{+0.024}$ M _⊙ and radius of R = ${0.785}_{-0.007}^{+0.007}$ R _⊙ observed by the TESS mission in 22 sectors (within sectors 1 and 39).
Trifon Trifonov +46 more
doaj +1 more source
Оptimization of gas turbine aircraft engine control throughout the engine service life
The task of optimizing control methods in order to maintain key performance parameters of a gas turbine engine throughout the engine service life is considered.
O. S. Gurevich +3 more
doaj +1 more source
The article describes a new phenomenon in the breeding group of mini-pigs at the Institute of Cytology and Genetics (ICG, Novosibirsk): polydactyly (extra digits), which is unusual because the additional digits are situated at the lateral surface of legs
S. V. Nikitin +9 more
doaj +1 more source
Precise radial velocities of giant stars. XI. Two brown dwarfs in 6:1 mean motion resonance around the K giant star $\nu$ Ophiuchi [PDF]
We present radial-velocity (RV) measurements for the K giant $\nu$ Oph (= HIP88048, HD163917, HR6698), which reveal two brown dwarf companions with a period ratio close to 6:1.
Andreas Quirrenbach +4 more
core +3 more sources
Ancient DNA analysis affirms the canid from Altai as a primitive dog. [PDF]
The origin of domestic dogs remains controversial, with genetic data indicating a separation between modern dogs and wolves in the Late Pleistocene.
Anna S Druzhkova +7 more
doaj +1 more source
Generalizations of Heisenberg uncertainty relation [PDF]
A survey on the generalizations of Heisenberg uncertainty relation and a general scheme for their entangled extensions to several states and observables is presented.
Trifonov, D. A.
core +2 more sources

