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SPHERE/ZIMPOL observations of the symbiotic system R Aquarii. II. Dynamics of the dust in the Mira wind and the Halpha gas in the jet
H. M. Schmid, E. Lagadec, J. Milli +17
R Aqr is a resolved symbiotic Mira binary and a prototype target for the study of complex hydrodynamic processes including dust-driven mass loss, mass transfer, accretion, and jet…
Astrometric and photometric characterization of Tel B combining two decades of observations
P. H. Nogueira, C. Lazzoni, A. Zurlo +11
Tel is an 18 Myr system with a 2.09 M A-type star and an M7-M8 brown dwarf companion, Tel B, separated by 4.2'' (208 au). High-contrast imaging campaigns over 20…
Polarization from Aligned Dust Grains in the Pic Debris Disk
Charles L. H. Hull, Haifeng Yang, Paulo C. Cortés +8
We present 870 m ALMA polarization observations of thermal dust emission from the iconic, edge-on debris disk Pic. While the spatially resolved map does not exhibit detectab…
Characterizing the morphology of the debris disk around the low-mass star GSC~07396-00759
C. Adam, J. Olofsson, R. G. van Holstein +17
Context. Debris disks have commonly been studied around intermediate-mass stars. Their intense radiation fields are believed to efficiently remove the small dust grains that are co…
Multiband GPI Imaging of the HR 4796A Debris Disk
Christine H. Chen, Johan Mazoyer, Charles A. Poteet +36
We have obtained Gemini Planet Imager (GPI) J-, H-, K1-, and K2-Spec observations of the iconic debris ring around the young, main-sequence star HR 4796A. We applied several point-…
The challenge of measuring the phase function of debris disks. Application to HR\,4796
J. Olofsson, J. Milli, A. Bayo +2
Abridged: Debris disks are valuable systems to study dust properties. Because they are optically thin at all wavelengths, we have direct access to the properties of dust grains. On…