# Resolving debris discs in the far-infrared: early highlights from the DEBRIS survey

**Authors:**  DEBRIS Collaboration, Brenda Matthews, Bruce Sibthorpe, Grant Kennedy, Neil Phillips, Laura Churcher, Gaspard Duchêne, Jane Greaves, Jean-Francois Lestrade, Amaya Moro-Martin, Mark Wyatt, Pierre Bastien, Andy Biggs, Jerome Bouvier, Harold Butner, Bill Dent, James Di Francesco, Jochen Eislöffel, James Graham, Paul Harvey  
**arXiv:** [1005.5147](https://arxiv.org/abs/1005.5147)  
**Date:** 2010-05-27  
**Summary page:** https://www.summarizepaper.com/en/paper/1005.5147v1/

## Key points

- The DEBRIS survey, a Herschel Key Programme, focused on observing debris discs around A-type through M-type stars.
- Using PACS images at 100 and 160 microns, the study examined two A-type stars (beta Leo and beta UMa) and one F-type star (eta Corvi), all known hosts of debris discs.
- The Herschel observations spatially resolved the dust emission around these stars, revealing discs as close as 11 parsecs with sizes similar to our Solar System.
- Researchers combined these data with existing flux density measurements to refine spectral energy distributions (SEDs) and estimate fractional luminosities, temperatures, and radii of the discs.
- The analysis sheds light on debris disc properties in various stellar environments, aiding in understanding planetary system formation and evolution.
- The collaboration involved researchers from different institutions, highlighting a collaborative effort to advance knowledge of circumstellar debris structures.

## Summary

The DEBRIS survey, a Herschel Key Programme, has provided early highlights on the observation of debris discs around A-type through M-type stars. Using PACS images at 100 and 160 microns, the study focused on two A-type stars (beta Leo and beta UMa) and one F-type star (eta Corvi), all known hosts of debris discs. The Herschel observations spatially resolved the dust emission around these stars, offering new insights into discs located as close as 11 parsecs with sizes comparable to that of our Solar System. By combining these data with existing flux density measurements, the researchers were able to refine the spectral energy distributions (SEDs) and derive estimates for fractional luminosities, temperatures, and radii of the discs. This comprehensive analysis sheds light on the properties of debris discs in different stellar environments and contributes to our understanding of planetary system formation and evolution. The collaboration involved a diverse group of researchers from various institutions, showcasing the collaborative effort in advancing our knowledge of circumstellar debris structures.