Widespread Atomic Gas Emission Reveals the Rotation of the β Pictoris Disk

@article{Olofsson2001WidespreadAG,
  title={Widespread Atomic Gas Emission Reveals the Rotation of the $\beta$ Pictoris Disk},
  author={G{\"o}ran Olofsson and Rene' Liseau and A. Brandeker},
  journal={The Astrophysical Journal},
  year={2001},
  volume={563}
}
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. This atomic gas is coexistent with the dust particles, suggestive of a common origin or source. The disk rotates toward us in the southwest and away from us in the northeast. The velocity pattern of the gas finally provides direct evidence that the faint linear feature seen in images of the star is a… Expand

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References

SHOWING 1-10 OF 15 REFERENCES
Deficiency of molecular hydrogen in the disk of β Pictoris
Molecular hydrogen (H2) is by far the most abundant material from which stars, protoplanetary disks and giant planets form, but it is difficult to detect directly. Infrared emission lines from H2Expand
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
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
BETA PICTORIS: An Early Solar System?
Beta Pictoris ( Pic) is the best studied of the normal main-sequence stars surrounded by circumstellar dust disks. We review the status of Pic and its disk, and compare it with both the early and theExpand
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
Substantial reservoirs of molecular hydrogen in the debris disks around young stars
TLDR
Observations of the lowest rotational transitions of molecular hydrogen that reveal large quantities of gas in the debris disks around the stars β Pictoris, 49 Ceti and HD135344 are reported. Expand
High Resolution HST-STIS Spectra of CI and CO in the Beta Pictoris Circumstellar Disk
High resolution FUV echelle spectra showing absorption features arising from CI and CO gas in the Beta Pictoris circumstellar (CS) disk were obtained on 1997 December 6 and 19 using the SpaceExpand
IRAS observations of matter around nearby stars
A systematic search of the IRAS point-source catalog has identified eight new nearby stars which are "Vega-like" in terms of their large 60-micron excess. This brings to twelve, of the set of 36Expand
Neutral Sodium from Comet Hale-Bopp: A Third Type of Tail
We report on the discovery and analysis of a striking neutral sodium gas tail associated with comet C/1995 O1 Hale-Bopp. Sodium D line emission has been observed at heliocentric distance r≤1.4 AU inExpand
Spherically Symmetric Model Atmospheres for Low-Mass Pre-Main-Sequence Stars with Effective Temperatures between 2000 and 6800 K
We present a grid of spherically symmetric model atmospheres for young pre-MS stars. This grid spans the parameter range 2000 K ≤ Teff ≤ 6800 K and 2.0 ≤ log g ≤ 3.5 for M = 0.1 M☉, appropriate forExpand
...
1
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...