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HD 117214 debris disk: scattered-light images and constraints on the presence of planets
N. Engler, C. Lazzoni, R. Gratton +34
We performed observations of the Sco-Cen F star HD 117214 aiming at a search for planetary companions and the characterization of the debris disk structure. HD 117214 was observed…
Dust production in the debris disk around HR 4796 A
J. Olofsson, J. Milli, P. Thébault +21
Debris disks are the natural by-products of the planet formation process. Scattered or polarized light observations are mostly sensitive to small dust grains that are released from…
New millimeter CO observations of the gas-rich debris disks 49 Cet and HD 32297
Attila Moór, Quentin Kral, Péter Ábrahám +7
Previous observations revealed the existence of CO gas at nearly protoplanetary level in several dust-rich debris disks around young A-type stars. Here we used the ALMA 7m-array to…
A multi-wavelength study of the debris disc around 49 Cet
Nicole Pawellek, Attila Moór, Julien Milli +17
In a multi-wavelength study of thermal emission and scattered light images we analyse the dust properties and structure of the debris disc around the A1-type main sequence star 49~…
Dust Spreading in Debris Discs: Do Small Grains Cling on to Their Birth Environment?
Nicole Pawellek, Attila Moór, Ilaria Pascucci +1
Debris discs are dusty belts of planetesimals around main-sequence stars, similar to the asteroid and Kuiper belts in our solar system. The planetesimals cannot be observed directl…
Two cold belts in the debris disk around the G-type star NZ Lup
A. Boccaletti, P. Thébault, N. Pawellek +36
Planetary systems hold the imprint of the formation and of the evolution of planets especially at young ages, and in particular at the stage when the gas has dissipated leaving mos…