Episodic accretion has become a recent focus of attention in the star-and planet-formation
community, turning into a central topic to understand the evolution of protostars and …

We have conducted a homogeneous near-infrared (near-IR) spectroscopic survey of 33
objects with varying degrees of similarity to FU Orionis. Common spectroscopic features that …

ABSTRACT A star acquires much of its mass by accreting material from a disk. Accretion is
probably not continuous but episodic. We have developed a method to include the effects of …

Context. The Gaia third Data Release (DR3) presents the first catalogue of full-sky variable
young stellar object (YSO) candidates observed by the Gaia space telescope during the …

Protostars grow in mass by accreting material through their discs, and this accretion is
initially their main source of luminosity. The resulting radiative feedback heats the …

Context. Young stellar objects (YSOs) may undergo periods of active accretion (outbursts),
during which the protostellar accretion rate is temporarily enhanced by a few orders of …

ABSTRACT FU Orionis stars (FUors) are eruptive pre-main sequence objects thought to
represent quasi-periodic or recurring stages of enhanced accretion during the low-mass star …

Strong accretion outbursts on to protostars are associated with emission dominated by a
viscously heated disc, which is characterized by high luminosities. We report the discovery …

Protostellar discs may become massive enough to fragment producing secondary low-mass
objects: planets, brown dwarfs and low-mass stars. We study the effect of radiative feedback …

During a synoptic survey of the North American Nebula region, the Palomar Transient
Factory (PTF) detected an optical outburst (dubbed PTF10nvg) associated with the …