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High-contrast Imaging with Spitzer: Deep Observations of Vega, Fomalhaut, and epsilon Eridani
Markus Janson, Sascha P. Quanz, Joseph C. Carson +3
Stars with debris disks are intriguing targets for direct imaging exoplanet searches, both due to previous detections of wide planets in debris disk systems, as well as commonly ex…
Confirmation and characterization of the protoplanet HD100546 b - Direct evidence for gas giant planet formation at 50 au
Sascha P. Quanz, Adam Amara, Michael R. Meyer +3
We present the first multi-wavelength, high-contrast imaging study confirming the protoplanet embedded in the disk around the Herbig Ae/Be star HD100546. The object is detected at…
Long-lasting dust rings in gas-rich disks: sculpting by single and multiple planets
Farzana Meru, Sascha P. Quanz, Maddalena Reggiani +2
We propose a mechanism by which dust rings in protoplanetary disks can form and be long-lasting compared to gas rings. This involves the existence of a pressure maximum which traps…
NIR Spectroscopy of the HAeBe Star HD 100546: III. Further Evidence of an Orbiting Companion?
Sean D. Brittain, John S. Carr, Joan R. Najita +2
We report high resolution NIR spectroscopy of CO and OH emission from the Herbig Be star HD100546. We discuss how our results bear striking resemblance to several theoretically pre…
Discovery of a Companion Candidate in the HD169142 Transition Disk and the Possibility of Multiple Planet Formation
Maddalena Reggiani, Sascha P. Quanz, Michael R. Meyer +14
We present L' and J-band high-contrast observations of HD169142, obtained with the VLT/NACO AGPM vector vortex coronagraph and the Gemini Planet Imager, respectively. A source loca…
Imaging the Inner and Outer Gaps of the Pre-Transitional Disk of HD 169142 at 7 mm
Mayra Osorio, Guillem Anglada, Carlos Carrasco-Gonzalez +11
We present Very Large Array observations at 7 mm that trace the thermal emission of large dust grains in the HD 169142 protoplanetary disk. Our images show a ring of enhanced emiss…