La Cristalera topics

This is a compilation of the "provoking" presentations of the meeting:

- Carlos Eiroa: Logistics and first list of topics
- Grant Kennedy: Inferring system formation and evolution from debris disk observations
- Johan Olofsson: Mind the dust

DUNES: Survey Observational Results presentation at IAUS299, Victoria

Presentation of the DUNES observational results (Eiroa et al., 2013) as given at the IAUS299 symposium in Victoria , Canada.

Dust Around NEarby Stars. The survey observational results

Debris discs are a consequence of the planet formation process and constitute the fingerprints of planetesimal systems. Their solar system’s counterparts are the asteroid and Edgeworth-Kuiper belts. The DUNES (Dust Around NEarby Stars, Herschel Open Time Key Program) survey aims at detecting extra-solar analogues to the Edgeworth-Kuiper belt around solar-type stars, putting in this way the solar system into context. The survey allows us to address some questions related to the prevalence and properties of planetesimal systems.

AAS Meeting, Seattle WA, Jan 2011: Herschel DUNES Observations of Cold Debris Disks Around Nearby Stars

Presented at the 217th American Astronomical Society Meeting, Seattle WA, USA

A Herschel resolved far infrared dust ring around HD207129

Context. Dusty debris discs around main sequence stars are thought to be the result of continuous collisional grinding of planetesimals in the system. The majority of these systems are unresolved and analysis of the dust properties is limited by the lack of information regarding the dust location. Aims. The Herschel DUNES key program is observing 133 nearby, Sun-like stars (< 20 pc, FGK spectral type) in a volume limited survey to constrain the absolute incidence of cold dust around these stars by detection of far infrared excess emission at flux levels

DUNES observations of debris discs around nearby stars with exoplanets

A debris disc is the by-product of a planet formation process around another star. These discs are composed of dust grains ranging in size from microns to millimetres, and usually observed at far infra-red wavelengths as emission in excess of that predicted from the stellar photosphere. Although more than 200 of these debris disc systems have been identified through surveys by (for example) IRAS and Spitzer, only a handful of the discs have been resolved. Imaging these systems is vital if a connection is to be made between the visible dust disc and any larger bodies in the system.

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