A near-infrared interferometric survey of debris-disk stars

@article{Absil2021ANI,
  title={A near-infrared interferometric survey of debris-disk stars},
  author={Olivier Absil and Lindsay Marion and Steve Ertel and Denis Defr{\'e}re and Grant M. Kennedy and Amedeo Romagnolo and Jean-Baptiste Le Bouquin and Valentin Christiaens and Julien Milli and Amy Bonsor and Johan Olofsson and K. Y. L. Su and J. Ch. Augereau},
  journal={Astronomy \& Astrophysics},
  year={2021}
}
Context. Hot exozodiacal dust has been shown to be present in the innermost regions of an increasing number of main sequence stars over the past 15 yr. However, the origin of hot exozodiacal dust and its connection with outer dust reservoirs remains unclear. Aims. We aim to explore the possible connection between hot exozodiacal dust and warm dust reservoirs (≥100 K) in asteroid belts. Methods. We use precision near-infrared interferometry with VLTI/PIONIER to search for resolved emission at H… 

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References

SHOWING 1-10 OF 345 REFERENCES
Constraints on the structure of hot exozodiacal dust belts
Recent interferometric surveys of nearby main-sequence stars show a faint but significant near-infrared excess in roughly two dozen systems, i.e. around 10–30 per cent of stars surveyed. This excess
POLARIZATION MEASUREMENTS OF HOT DUST STARS AND THE LOCAL INTERSTELLAR MEDIUM
Debris discs are typically revealed through the presence of excess emission at infrared wavelengths. Most discs exhibit excess at mid- and far-infrared wavelengths, analogous to the solar system’s
A near-infrared interferometric survey of debris-disc stars - III. First statistics based on 42 stars observed with CHARA/FLUOR
Context. Dust is expected to be ubiquitous in extrasolar planetary systems owing to the dynamical activity of minor bodies. Inner dust populations are, however, still poorly known because of the high
AN INTERFEROMETRIC STUDY OF THE FOMALHAUT INNER DEBRIS DISK. I. NEAR-INFRARED DETECTION OF HOT DUST WITH VLTI/VINCI
The innermost parts of dusty debris disks around main-sequence stars are currently poorly known due to the high contrast and small angular separation with their parent stars. Using near-infrared
Direct imaging of exoEarths embedded in clumpy debris disks
The inner solar system, where the terrestrial planets formed and evolve, is populated by small grains of dust produced by collisions of asteroids and outgassing comets. At visible and infrared
The HOSTS Survey for Exozodiacal Dust: Observational Results from the Complete Survey
The Large Binocular Telescope Interferometer (LBTI) enables nulling interferometric observations across the N band (8 to 13 μm) to suppress a star’s bright light and probe for faint circumstellar
A near-infrared interferometric survey of debris-disc stars. V. PIONIER search for variability
Context. Extended circumstellar emission has been detected within a few 100 milli-arcsec around ≳10% of nearby main sequence stars using near-infrared interferometry. Follow-up observations using
DUST IN THE INNER REGIONS OF DEBRIS DISKS AROUND A STARS
We present infrared interferometric observations of the inner regions of two A-star debris disks, β Leo and ζ Lep, using the FLUOR instrument at the CHARA interferometer on both short (30 m) and long
Gas trapping of hot dust around main-sequence stars
In 2006 Vega was discovered to display excess near-infrared emission. Surveys now detect this phenomenon for one fifth of main-sequence stars, across various spectral types and ages. The excesses are
Exo--Zodiacal Dust Levels for Nearby Main Sequence Stars
The Keck Interferometer Nuller (KIN) was used to survey 25 nearby main sequence stars in the mid-infrared, in order to assess the prevalence of warm circumstellar (exozodiacal) dust around nearby
...
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