Since the discovery of the multiring structure of the HL Tau disk, ALMA data suggest that the
dust continuum emission of many, if not all, protoplanetary disks consists of rings and gaps …

Abstract High-resolution Atacama Large Millimeter/submillimeter Array observations of
protoplanetary disks have revealed that many, if not all, primordial disks consist of ring-like …

Gaps in protoplanetary disks have long been hailed as signposts of planet formation.
However, a direct link between exoplanets and disks remains hard to identify. We present a …

Aims. Dust grains with sizes around (sub) mm are expected to couple only weakly to the gas
motion in regions beyond 10 au of circumstellar disks. In this work, we investigate the …

The prevalence of substructures in∼ 1–10 Myr old protoplanetary disks, which are often
linked to planet formation, has raised the question of how early such features form and, as a …

Abstract We present new Atacama Large Millimeter/submillimeter Array observations for
three protoplanetary disks in Taurus at 2.9 mm and comparisons with previous 1.3 mm data …

Astronomical observations reveal that protoplanetary disks around young stars commonly
have ring-and gap-like structures in their dust distributions. These features are associated …

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 role in …

It has been recently suggested that the multiple concentric rings and gaps discovered by
ALMA in many protoplanetary disks may be produced by a single planet, as a result of the …

ABSTRACT We present Very Large Array observations of the intermediate-mass pre–main-
sequence stars UX Ori and CQ Tau at 7 mm, 3.6 cm, and 6 cm. These stars are members of …