The formation of low-mass (M★≲ 2 M⊙) stars in molecular clouds involves accretion disks
and jets, which are of broad astrophysical interest. Accreting stars represent the closest …

Accretion dynamics in the formation of young stars is still a matter of debate because of
limitations in observations and modeling. Through scaled laboratory experiments of …

This is the final photometric study of TW Hya based on new MOST satellite observations.
During 2014 and 2017, the light curves showed stable 3.75-and 3.69-d quasi-periodic …

We present an i-band photometric study of over 800 young stellar objects in the OB
association Cep OB3b, which samples time-scales from one minute to 10 yr. Using structure …

The HOYS citizen science project conducts long-term, multifilter, high-cadence monitoring of
large YSO samples with a wide variety of professional and amateur telescopes. We present …

Context. Classical T Tauri stars (CTTSs) are young low-mass stellar objects that accrete
mass from their circumstellar disks. They are characterized by high levels of coronal activity …

Context. The so-called dippers are pre-main-sequence objects that accrete material from
their circumstellar disks through the stellar magnetosphere. Their unique type of variability …

Context. High resolution spectroscopy, providing constraints on plasma motions and
temperatures, is a powerful means to investigate the structure of accretion streams in …

Context. According to the magnetospheric accretion model, hot spots form on the surface of
classical T Tauri stars (CTTSs) in regions where accreting disk material impacts the stellar …

The structure and spectrum of the accretion shock have been self-consistently simulated for
a wide range of parameters typical for Classical T Tauri Stars (CTTS). Radiative cooling of …