High-sensitivity search for clumps in the Vega Kuiper-belt. New PdBI 1.3 mm observations

@article{Pietu2011HighsensitivitySF,
  title={High-sensitivity search for clumps in the Vega Kuiper-belt. New PdBI 1.3 mm observations},
  author={Vincent Pi'etu and Emmanuel di Folco and S. Guilloteau and Fr'ed'eric Gueth and Pierre Cox},
  journal={Astronomy and Astrophysics},
  year={2011},
  volume={531}
}
Context. Previous studies have found that Vega is surrounded by an extended debris disc that is very smooth in the far infrared, but displays possible clumpiness at 850 μm and dust emission peaks at 1.3 mm. Aims. We reobserved Vega at 1.3 mm with PdBI to constrain its circumstellar dust distribution. Methods. Our observations of a three-field mosaic have a factor of two higher sensitivity than previous observations. Results. We detect Vega photosphere with the expected flux, but none of the… 

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References

SHOWING 1-10 OF 24 REFERENCES
STRUCTURE IN THE DUSTY DEBRIS AROUND VEGA 1
We present images of the Vega system obtained with the IRAM Plateau de Bure interferometer at a 1.3 mm wavelength with submillijansky sensitivity and ∼2 .5 resolution (about 20 AU). These
Submillimetre observations and modelling of Vega-type stars
We present new submillimetre observations of Vega-excess stars, and consistent modelling for all known Vega-excess stars with submillimetre data. Our analysis uses dust grain models with realistic
A search for evolved dust in Herbig Ae stars
We present observations of six isolated, pre-main-sequence, intermediate mass stars selected for shallow spectra at submillimeter wavelengths at 1.3, 2.6, 7.0, and 36 millimeters from the IRAM PdBI
Structure in the Dusty Debris around Vega
We present images of the Vega system obtained with the IRAM Plateau de Bure interferometer at a 1.3 mm wavelength with submillijansky sensitivity and ~25 resolution (about 20 AU). These observations
Images of the Vega Dust Ring at 350 and 450 μm: New Clues to the Trapping of Multiple-Sized Dust Particles in Planetary Resonances
We have used the SHARC II camera at Caltech Submillimeter Observatory to make 350 and 450 μm images of the Vega dust disk at spatial resolutions (FWHM) of 9".7 and 11".1, respectively. The images
Thermal infrared constraint to a planetary companion of vega with the MMT adaptive optics system
Vega may have a massive companion in a wide orbit, as evidenced by structure in its cold dust debris. We have tested this hypothesis by direct imaging with adaptive optics in the M band. The
Debris disk evolution around a stars
We report 24 and/or 70 μm measurements of ~160 A-type main-sequence stars using the Multiband Imaging Photometer for Spitzer (MIPS). Their ages range from 5 to 850 Myr, based on estimates from the
THE DEBRIS DISK OF VEGA: A STEADY-STATE COLLISIONAL CASCADE, NATURALLY
The archetypical debris disk around Vega has been observed intensively over the past 25 years. It has been argued that the resulting photometric data and images may be in contradiction with a
The Vega debris disk: A surprise from spitzer
We present high spatial resolution mid- and far-infrared images of the Vega debris disk obtained with the Multiband Imaging Photometer for Spitzer (MIPS). The disk is well resolved, and its angular
The Vega debris disc: A view from Herschel
We present five band imaging of the Vega debris disc obtained using the Herschel Space Observatory. These data span a wavelength range of 70-500 mu m with full-width half-maximum angular resolutions
...
1
2
3
...