搜索结果: 1-6 共查到“天文学 spin-orbit”相关记录6条 . 查询时间(0.108 秒)
Starspots, spin-orbit misalignment, and active latitudes in the HAT-P-11 exoplanetary system
Starspots spin-orbit misalignment active latitudes
2011/10/9
We present the analysis of 4 months of Kepler photometry of the K4V star HAT-P-11, including 26 transits of its "super-Neptune" planet. The transit data exhibit numerous anomalies that we interpret as...
On using the beaming effect to measure spin-orbit alignment in stellar binaries with Sun-like components
measure spin-orbit alignment stellar binaries Sun-like components
2011/10/13
The beaming effect (aka Doppler boosting) induces a variation in the observed flux of a luminous object, following its observed radial velocity variation. We describe a photometric signal induced by t...
Extending the effective-one-body Hamiltonian of black-hole binaries to include next-to-next-to-leading spin-orbit couplings
Extending Hamiltonian black-hole binaries couplings
2011/10/17
In the effective-one-body (EOB) approach the dynamics of two compact objects of masses m1 and m2 and spins S1 and S2 is mapped into the dynamics of one test particle of mass mu = m1 m2/(m1+m2) and spi...
Using Star Spots to Measure the Spin-orbit Alignment of Transiting Planets
Using Star Spots Measure Alignment Transiting Planets
2011/10/8
Spectroscopic follow-up of dozens of transiting planets has revealed the degree of alignment between the equators of stars and the orbits of the planets they host. Here we determine a method, applicab...
The Banana Project. III. Spin-orbit Alignment in the Long-period Eclipsing Binary NY Cephei
techniques spectroscopic|stars kinematics and dynamics|stars early-type stars rotation|stars formation
2010/11/9
Binaries are not always neatly aligned. Previous observations of the DI Her system showed that the spin axes of both stars are highly inclined with respect to one another and the orbital axis. Here we...
The barycentric motion of exoplanet host stars: tests of solar spin-orbit coupling
Earth and Planetary Astrophysics (astro-ph.EP)
2010/12/24
Empirical evidence suggests a tantalising but unproven link between various indicators of solar activity and the barycentric motion of the Sun. The latter is exemplified by transitions between regular...