A near-infrared interferometric survey of debris disk stars. I. Probing the hot dust content aroun

@article{Folco2007ANI,
  title={A near-infrared interferometric survey of debris disk stars. I. Probing the hot dust content aroun},
  author={Emmanuel di Folco and Olivier Absil and J. Ch. Augereau and Antoine M'erand and Vincent Coud'e du Foresto and Fr'ed'eric Th'evenin and Denis Defr{\`e}re and Pierre Kervella and Theo A. ten Brummelaar and Harold A. Mcalister and Stephen T. Ridgway and Judit Sturmann and Laszlo Sturmann and N. Guseva Observatoire de Geneve and Laboratoire d'Astrophysique de l'Observatoire de Grenoble Umr 5571 and Center for High Angular Resolution Astronomy Georgia Stat University and Lesia Observatoire de Paris-Meudon and L. Prockter Observatoire de la Cote d'Azur and Institute d'Astrophysique de Paris Warsaw University Observatory},
  journal={Astronomy and Astrophysics},
  year={2007}
}
Context. The quest for hot dust in the central region of debris disks re quires high resolution and high dynamic range imaging. Nearinfrared interferometry is a powerful means to directly det ect faint emission from hot grains. Aims. We probed the first 3 AU aroundτ Ceti andǫ Eridani with the CHARA array (Mt Wilson, USA) in order to gauge the 2� m excess flux emanating from possible hot dust grains in the debris dis ks and to also resolve the stellar photospheres. Methods. High precision… Expand

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References

SHOWING 1-10 OF 49 REFERENCES
Circumstellar material in the Vega inner system revealed by CHARA/FLUOR
Context. Only a handful of debris disks have been imaged up to now. Due to the need for high dynamic range and high angular resolution, very little is known about the inner planetary region, whereExpand
Structure in the ∊ Eridani Debris Disk
New submillimeter images have been obtained of the dust disk around the nearby K2 V star e Eridani, with the total data set now spanning 5 yr. These images show the distribution of dusty debrisExpand
IRS Spectra of Solar-Type Stars: A Search for Asteroid Belt Analogs
We report the results of a spectroscopic search for debris disks surrounding 41 nearby solar-type stars, including eight planet-bearing stars, using the Infrared Spectrometer (IRS) on the SpitzerExpand
A Dust Ring around epsilon Eridani: Analog to the Young Solar System
Dust emission around the nearby star Eridani has been imaged using a new submillimeter camera (the Submillimetre Common-User Bolometer Array at the James Clerk Maxwell Telescope). At an 850 μmExpand
Spitzer IRS Spectroscopy of IRAS-discovered Debris Disks*
We have obtained Spitzer Space Telescope Infrared Spectrograph (IRS) 5.5-35 μm spectra of 59 main-sequence stars that possess IRAS 60 μm excess. The spectra of five objects possess spectral featuresExpand
A catalog of bright calibrator stars for 200-m baseline near-infrared stellar interferometry
We present in this paper a catalog of reference stars suitable for calibrating infrared interferometric observations. In the K band, visibilities can be calibrated with a precision of 1% on baselinesExpand
The COBE Diffuse Infrared Background Experiment Search for the Cosmic Infrared Background. II. Model of the Interplanetary Dust Cloud
The COBE Diffuse Infrared Background Experiment (DIRBE) was designed to search for the cosmic infrared background (CIB) radiation. For an observer confined to the inner solar system, scattered lightExpand
The debris disc around τ Ceti: a massive analogue to the Kuiper Belt
An excess of far-infrared emission is seen towards the nearby G8 V star τ Ceti, and this has been attributed to orbiting dust particles generated in planetesimal collisions. A new 850-µm image showsExpand
A catalogue of calibrator stars for long baseline stellar interferometry
Long baseline stellar interferometry shares with other techniques the need for calibrator stars in order to correct for instrumental and atmospheric eects. We present a catalogue of 374 starsExpand
Infrared Photometry of β Pictoris Type Systems
We obtained small-aperture (4''–5'' diameter) infrared (2–20 μm) photometry of 10 early-type main-sequence stars with infrared excesses from circumstellar dust. These systems possibly exemplify the βExpand
...
1
2
3
4
5
...