activity
20202023
most citedBridging the gap between protoplanetary and debris disks: separate evolution of millimeter and micrometer-sized dust

80 citations · 105 across the 5 of their papers we have counts for

collaborators

5 papers

astro-ph.EP2023

Finding substructures in protostellar disks in Ophiuchus

Arnaud Michel, Sarah I. Sadavoy, Patrick D. Sheehan +5

High-resolution, millimeter observations of disks at the protoplanetary stage reveal substructures such as gaps, rings, arcs, spirals, and cavities. While many protoplanetary disks…

astro-ph.GA2022

Most planets might have more than 5 Myr of time to form

Susanne Pfalzner, Shahrzad Dehghani, Arnaud Michel

The lifetime of protoplanetary disks is a crucial parameter for planet formation research. Observations of disk fractions in star clusters imply median disk lifetimes of 1 -- 3 Myr…

astro-ph.EP2022★ 12 cited

A millimeter-multiwavelength continuum study of VLA 1623 West

Arnaud Michel, Sarah I. Sadavoy, Patrick D. Sheehan +2

VLA 1623 West is an ambiguous source that has been described as a shocked cloudlet as well as a protostellar disk. We use deep ALMA 1.3 and 0.87 millimeter observations to constrai…

astro-ph.EP2021★ 80 cited

Bridging the gap between protoplanetary and debris disks: separate evolution of millimeter and micrometer-sized dust

Arnaud Michel, Nienke van der Marel, Brenda Matthews

The connection between the nature of a protoplanetary disk and that of a debris disk is not well understood. Dust evolution, planet formation, and disk dissipation likely play a ro…

astro-ph.EP2020★ 13 cited

Planetary mass-radius relations across the galaxy

A. Michel, J. Haldemann, C. Mordasini +1

Planet formation theory suggests that planet bulk compositions are likely to reflect the chemical abundance ratios of their host star's photosphere. Variations in the abundance of…