Stellar Encounters with the β Pictoris Planetesimal System

@article{Kalas2001StellarEW,
  title={Stellar Encounters with the $\beta$ Pictoris Planetesimal System},
  author={Paul Kalas and Jean-Marc Deltorn and John D. Larwood},
  journal={The Astrophysical Journal},
  year={2001},
  volume={553},
  pages={410-420}
}
We use data from the Hipparcos catalog and the Barbier-Brossat & Figon catalog of stellar radial velocities to test the hypothesis that the b Pic planetesimal disk was disrupted by a close stellar encoun- ter. We trace the space motions of 21,497 stars and discover 18 that have passed within 5 pc of b Pic in the past 1 Myr. b Pics closest encounter is with the K2 III star HIP 27628 (D0.6 pc), but dynamically the most important encounter is with the F7 V star HIP 23693 (D0.9 pc). We calculate… Expand

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References

SHOWING 1-10 OF 35 REFERENCES
Stellar Encounters with the Oort Cloud Based on Hipparcos Data
We have combined Hipparcos proper-motion and parallax data for nearby stars with ground-based radial velocity measurements to —nd stars that may have passed (or will pass) close enough to the Sun toExpand
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
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
A Circumstellar Disk Around β Pictoris
A circumstellar disk has been observed optically around the fourth-magnitude star β Pictoris. First detected in the infrared by the Infrared Astronomy Satellite last year, the disk is seen to extendExpand
Do OB runaway stars have pulsar companions
We have conducted a VLA search for radio pulsars at the positions of 44 nearby OB runaway stars. The observations involved both searching images for point sources of continuum emission and a timeExpand
Dust depletion in the inner disk of β Pictoris as a possible indicator of planets
IT is not yet possible to see planets orbiting other stars, although this may soon change as observing methods improve1. Indirect evidence for the presence of circumstellar dust disks out of whichExpand
The Modification of Planetary Orbits in Dense Open Clusters
We show that Jovian planets will frequently experience orbital disruption due to interactions with binary stars in their birth clusters. We attack the problem using a Monte Carlo approach andExpand
Space Telescope Imaging Spectrograph Coronagraphic Observations of β Pictoris
We present new coronagraphic images of β Pictoris obtained with the Space Telescope Imaging Spectrograph (STIS) in 1997 September. The high-resolution images (01) clearly detect the circumstellarExpand
Rings in the Planetesimal Disk of beta Pictoris.
TLDR
A dynamical model is presented showing that a close stellar flyby with a quiescent disk of planetesimals can create such rings, along with previously unexplained disk asymmetries, which infer that beta Pic's planetesimal disk was highly disrupted by a stellar encounter in the last hundred thousand years. Expand
Radial velocities of HIPPARCOS southern B8-F2 type stars
Radial velocities have been determined for a sample of B8-F2 type stars observed by the Hipparcos satellite. Observations were obtained within the frame- work of an ESO key-program. Radial velocitiesExpand
...
1
2
3
4
...