Accretion through circumstellar disks plays an important role in star formation and in
establishing the properties of the regions in which planets form and migrate. The …

We review current understanding of star formation, outlining an overall theoretical framework
and the observations that motivate it. A conception of star formation has emerged in which …

ABSTRACT We present STARFORGE (STAR FORmation in Gaseous Environments): a new
numerical framework for 3D radiation magnetohydrodynamic (MHD) simulations of star …

We perform local, vertically stratified shearing-box MHD simulations of protoplanetary disks
(PPDs) at a fiducial radius of 1 AU that take into account the effects of both Ohmic resistivity …

Black hole accretion flows can be divided into two broad classes: cold and hot. Whereas
cold accretion flows consist of cool optically thick gas and are found at relatively high mass …

Although fundamental for astrophysics, the processes that produce massive stars are not
well understood. Large distances, high extinction, and short timescales of critical …

▪ Abstract We summarize the properties of FU Orionis variables, and show how accretion
disk models simply explain many peculiarities of these objects. FU Ori systems demonstrate …

Recent discoveries of extrasolar planets and new direct evidence for protoplanetary disks
around young stars have had a major impact on our understanding of star and planet …

▪ Abstract Observational studies of low-mass stars during their early stages of evolution, from
protostars through the zero-age main sequence, show highly elevated levels of magnetic …

Magnetospheric accretion models for T Tauri stars. 1: Balmer line profiles witho ADS Classic is
now deprecated. It will be completely retired in October 2019. This page will automatically …