Herschel imaging of 61 Vir: implications for the prevalence of debris in low-mass planetary systems

  title={Herschel imaging of 61 Vir: implications for the prevalence of debris in low-mass planetary systems},
  author={Mark C. Wyatt and Grant M. Kennedy and Bruce Sibthorpe and Amaya Moro-martin and J. F. Lestrade and R. J. Ivison and Brenda C. Matthews and St{\'e}phane Udry and Jane Greaves and Paul Kalas and Samantha M. Lawler and Kate Y. L. Su and George H. Rieke and Mark Booth and Geoffrey C. Bryden and Jonti Horner and J. J. Kavelaars and David J. Wilner},
  journal={Monthly Notices of the Royal Astronomical Society},
This paper describes Herschel observations of the nearby (8.5pc) G5V multi-exoplanet host star 61Vir at 70, 100, 160, 250, 350 and 500m carried out as part of the DEBRIS survey. These observations reveal emission that is significantly extended out to a distance of >15arcsec with a morphology that can be fitted by a nearly edge-on (77° inclination) radially broad (from 30au out to at least 100au) debris disc of fractional luminosity 2.7 × 10 -5, with two additional (presumably unrelated) sources… Expand

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