stars: planetary systems
Tidal dissipation in stars and fluid planetary layers and its impact on the evolution of star-planet systems
... Abstract. Tidal dissipation in stars and planets is one of the key physical mechanisms that drive the evolution of planetary systems. It intrinsically depends on the nature of the tidal response of ...
5
Liberating exomoons in white dwarf planetary systems
... We emphasize that many of the results obtained herein will apply directly to MS stars as well as the post-MS WDs we have focused on. In other words, planet–planet scattering around MS stars will cause the ...
16
Testing proposed planetary systems - to destruction
... the stars in these binaries are the result of per turbations from massive unseen companions, then those companions must move on orbits dramatically different to those proposed in the discovery ...these ...
6
Overcoming Diminished Motivation
... only planetary system of which we knew—our own Solar ...ing stars other than the Sun) were discovered more than two decades ago, their properties immediately hinted at the diversity of planetary ...
194
A planetesimal orbiting within the debris disc around a white dwarf star
... planet-hosting stars are known (1), the vast majority of which will end their lives as white ...that planetary systems, including the Solar System, can survive the evolution of their host star ...
61
Polarimetry of planetary systems
... Each pixel on the CCD has a slightly di↵erent gain than the neighbouring pixels, so the response to incoming photons is slightly di↵erent. In order to smooth this e↵ect out for incoming radiation, the science images are ...
236
Dust production and depletion in evolved planetary systems
... comparison stars in common for all nine Spitzer ...comparison stars is not accounted for here, but ignoring this possibility yields a difference of 23 per cent between the minimum and maximum differential ...
12
Planetary host stars : evaluating uncertainties in cool model atmospheres
... mission have allowed the number of known exoplanets to grow rapidly. Up to date, the Exoplanet Encyclopaedia (exoplanet.eu) lists a total of 1822 planets in 1137 planetary systems. Better in- struments and ...
23
The fate of exomoons in white dwarf planetary systems
... that planetary instability is guaranteed on a short ...modelled stars with main-sequence masses of 3 M or ...simulated systems with four or more planets across all phases of stellar evolution, ...
9
Doppler monitoring of five k2 transiting planetary systems
... The characterization of a planet starts with the measurement of its mass and radius. Without these two quantities, we cannot even begin to answer the most basic questions about the planet ’ s internal structure, ...
16
A circumbinary debris disk in a polluted white dwarf system
... of planetary systems around close binary stars is a challenging problem, yet provides insight into the growth of planetesimals within evolving protoplanetary disks and planet formation in ...
25
Simulations of winds of weak lined T Tauri stars II : The effects of a tilted magnetosphere and planetary interactions
... The stellar wind of a host star is expected to directly influence an orbiting planet and its atmosphere. The interaction, for example, of a magnetized wind with a magnetized planet can give rise to reconnection of mag- ...
21
IC 4663: the first unambiguous [WN] Wolf-Rayet central star of a planetary nebula
... central stars of PNe via radial-velocity (RV) variability ...central stars overlap with this morphological prescription and so it was not unexpected that new examples would be found during the ...
14
A census of AM CVn stars : three new candidates and one confirmed 48 3 minute binary
... Phase-resolved spectroscopy is the technique of choice for measuring the orbital period of AM CVn binaries, for which photometry does typically not yield stable orbital period signals. In AM CVn stars, the ...
8
Spitzer observations confirm and rescue the habitable-zone super-earth K2-18b for future characterization
... In the coming years, mass measurement of K2-18b will be critical to provide an understanding of the nature and bulk composition of K2-18b. Radial velocity measurements are challenging, however, because the host star is ...
10
Kaschinski, Cornelius Bernhard (2013): Parameters of selected central stars of planetary nebulae from consistent optical and UV spectral analysis. Dissertation, LMU München: Fakultät für Physik
... For CSPNs the hydrodynamical analysis yielded a much larger spread in reported masses com- pared to the ones derived from the optical analysis in conjunction with theoretical post-AGB evo- lutionary tracks. These ...
148
Dynamic and Meshing Analysis of Planetary Gears Assembly
... a planetary gear systems were at first , the number of planets each planetary gear stage would carry, the number of teeth on every gear, module for gears, pitch circle diameter the torque transmitted ...
13
Building Positive Future Orientations: The Role of Natural Mentors in the Lives of African American Girls
... double stars at that time, only 50 had reliable orbits and an additional 1,000 showed hints of orbital ...double stars to argue for a physical ...105 stars (Luyten & Shapley ...
751
Observations of remnant planetary systems at white dwarfs
... The first hint of the now-accepted explanation came from infrared observations of the white dwarf G 29-38 by Zuckerman & Becklin (1987), which showed excess flux at wavelengths longer than ≈ 1 . 5 µ m (Figure 1.8.a). ...
146
The Orbital Dynamics of Advanced Planetary Observation Systems
... 167 The Martian environment is of particular interest with recent missions including Mars Odyssey [46], Mars Express [43], MRO [45], and the Curiosity rover 10 . Such missions have allowed a comprehensive view of Mars to ...
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