High latitude gas in the Beta Pictoris system. A possible origin related to Falling Evaporating Bodies.

@article{Beust2007HighLG,
  title={High latitude gas in the Beta Pictoris system. A possible origin related to Falling Evaporating Bodies.},
  author={Herv'e Beust and Pierre Valiron},
  journal={Astronomy and Astrophysics},
  year={2007},
  volume={466},
  pages={201-213}
}
The presence of off-plane Ca II ions in the Beta Pictoris disk, and the non-detection of off-plane Na I atoms, can be explained as a consequence of the evaporation process of Falling Evaporating Bodies (FEBs). In the star-grazing regime, the FEBs are subject to inclination oscillations up to 30 - 40 degrees that causes most metallic species released by sublimation to move off plane The ions are be stopped at about 100 AU from the star. We show that collisions with a neutral medium can stop the… Expand

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References

SHOWING 1-10 OF 45 REFERENCES
Falling evaporating bodies in the β Pictoris system - Resonance refilling and long term duration of the phenomenon
The transient spectral absorption events that have been monitored for years towards the star Pictoris have been interpreted as resulting from the transit across the line of sight of evaporating,Expand
Braking the Gas in the β Pictoris Disk
The star β Pictoris hosts the best studied circumstellar disk to date. Nonetheless, a long-standing puzzle has been around since the detection of metallic gas in the disk: radiation pressure from theExpand
Falling Evaporating Bodies as a Clue to Outline the Structure of the β Pictoris Young Planetary System
Transient redshifted events monitored in the spectrum offl Pictoris have been interpreted for many years as resulting from the evaporation of numerous comet-like bodies in the vicinity of this stars.Expand
The physico-chemical history of Falling Evaporating Bodies around $\beta$ Pictoris: The sublimation of refractory material
Transient spectral redshifted absorption events in the spectrum of Pictoris ( Pic) have been attributed to comet- like bodies falling toward the star ( Falling Evaporating Bodies, or FEB) andExpand
Dust production from collisions in extrasolar planetary systems. The inner beta Pictoris disc
Dust particles observed in extrasolar planetary discs originate from undetectable km-sized bodies but this valuable information remains uninteresting if the theoretical link between grains andExpand
Widespread Atomic Gas Emission Reveals the Rotation of the β Pictoris Disk
We present high-resolution Na I D spectroscopy of the β Pictoris disk, and the resonantly scattered sodium emission can be traced from less than 30 AU to at least 140 AU from the central star. ThisExpand
Mean-Motion Resonances as a Source for Infalling Comets toward β Pictoris
Abstract Repeated time-variable redshifted absorption features in the spectrum of β Pictoris (β Pic) have been attributed to comet-like bodies falling toward the star, when evaporating in itsExpand
The gaseous component of the disk around Beta Pictoris
Optical spectra of alpha Lyr, alpha PsA, and beta Pic have been obtained at a velocity resolution of 3 km/s. No circumstellar absorption lines of Ca II or Na I are detected toward alpha Lyr or alphaExpand
Dynamical modeling of large scale asymmetries in the beta Pictoris dust disk
We report a new and complete model of the Pictoris disk, which succeeds in accounting for both the surface brightness distribution, warp characteristics, the outer \butterfly" asymmetry as observedExpand
Close stellar encounters with planetesimal discs: the dynamics of asymmetry in the β Pictoris system
We numerically investigate the dynamics of how a close stellar fly-by encounter of a symmetrical circumstellar planetesimal disc can give rise to the many kinds of asymmetries and substructuresExpand
...
1
2
3
4
5
...