An observational review is provided of the properties of accretion disks around young stars.
It concerns the primordial disks of intermediate-and high-mass young stellar objects in …

We present an overview of the Large Program," Early Planet Formation in Embedded Disks
(eDisk)," conducted with the Atacama Large Millimeter/submillimeter Array (ALMA). The …

Recent observations have suggested that circumstellar disks may commonly form around
young stellar objects. Although the formation of circumstellar disks can be a natural result of …

Context. In the past few years, there has been a rise in the detection of streamers,
asymmetric flows of material directed toward the protostellar disk with material from outside …

Context. Water is a key molecule in the physics and chemistry of star and planet formation,
but it is difficult to observe from Earth. The Herschel Space Observatory provided …

Binary formation is an important aspect of star formation. One possible route for close-in
binary formation is disk fragmentation,–. Recent observations show that small-scale …

Precise estimates of protostellar masses are crucial to characterize the formation of stars of
low masses down to brown dwarfs (BDs; M*< 0.08 M☉). The most accurate estimation of …

We present observations of the Class 0 protostar IRAS 16544–1604 in CB 68 from the" Early
Planet Formation in Embedded Disks (eDisk)" ALMA Large program. The ALMA …

Context. The physical and chemical conditions in Class 0/I protostars are fundamental in
unlocking the protostellar accretion process and its impact on planet formation. Aims. The …

The concentric gaps and rings commonly observed in protoplanetary disks in millimeter
continuum emission have lent the impression that planet formation generally proceeds …