Publications (13)
Early phases of star formation with SKAO: synchrotron emission from dense starless cores in molecular clouds
Andrea Bracco, Tyler L. Bourke, Stefano Bovino +8
Magnetic fields play a central role in the star-formation process, from diffuse gas to the dense, starless, molecular cloud cores that represent the first gravitationally bound str…
TIPSY: Trajectory of Infalling Particles in Streamers around Young stars. Dynamical analysis of the streamers around S CrA and HL Tau
Aashish Gupta, Anna Miotello, Jonathan P. Williams +3
Context. Elongated trails of infalling gas, often referred to as "streamers," have recently been observed around young stellar objects (YSOs) at different evolutionary stages. This…
Environmental interactions in Class II systems and their impact on the disk-planet architecture
Pedro P. Poblete, Nicolás Cuello, Tim D. Pearce +4
Protoplanetary disks evolve in clustered environments where interactions with nearby stars and interstellar gas are common. Such environmental processes, including stellar flybys a…
From Bubbles and Filaments to Cores and Disks: Gas Gathering and Growth of Structure Leading to the Formation of Stellar Systems
Jaime E. Pineda, Doris Arzoumanian, Philippe André +8
The study of the development of structures on multiple scales in the cold interstellar medium has experienced rapid expansion in the past decade, on both the observational and the…
Probing the physics of star formation (ProPStar): I. First resolved maps of the electron fraction and cosmic-ray ionization rate in NGC 1333
Jaime E. Pineda, Olli Sipilä, Dominique M. Segura-Cox +11
Electron fraction and cosmic-ray ionization rates (CRIR) in star-forming regions are important quantities in astrochemical modeling and are critical to the degree of coupling betwe…
The Bridge: a transient phenomenon of forming stellar multiples
Michael Kuffmeier, Hannah Calcutt, Lars E. Kristensen
Observations with modern instruments such as Herschel reveal that stars form clustered inside filamentary arms of ~1 pc length embedded in Giant Molecular Clouds. On smaller scales…
Episodic accretion: the interplay of infall and disc instabilities
Michael Kuffmeier, Søren Frimann, Sigurd S. Jensen +1
Using zoom-simulations carried out with the adaptive mesh-refinement code RAMSES with a dynamic range of up to we investigate the accretion profil…
Preferential accretion of binary stars
Daniel Dalsgaard, Michael Kuffmeier, Troels Haugbølle
The attracting properties of gravity enable matter present in cores to collapse into stars with seven orders of magnitude change in space and time making modelling of star formatio…
Tracking the distribution of Al and Fe during the early phases of star and disk evolution
Michael Kuffmeier, Troels Frostholm Mogensen, Troels Haugboelle +2
The short-lived Al and Fe radionuclides are synthesized and expelled in the interstellar medium by core-collapse supernova events. The solar system's first solids, ca…
Accretion across scales: streamers, surface-layer transport, and rapid replenishment in young protoplanetary discs
Christian Granzow Holm, Michiel Lambrechts, Michael Kuffmeier +3
Protoplanetary discs evolve around newly-formed stars through an interplay of infall from surrounding turbulent cloud material, accretion towards the young star, and outflow driven…
Probing the Physics of Star-Formation (ProPStar) III. No evidence for dissipation of turbulence down to 20 mpc (4 000 au) scale
Jaime E. Pineda, Juan D. Soler, Stella Offner +14
Context. Turbulence is a key component of molecular cloud structure. It is usually described by a cascade of energy down to the dissipation scale. The power spectrum for subsonic i…
The effects of large scale magnetic fields around young protostars and their disks
Michael Kuffmeier, Farrukh Nauman
We study the evolution of magnetic fields in accretion flows around six different sink particles in a global star formation simulation. Using the adaptive mesh refinement capabilit…
Zoom-Simulations of Protoplanetary Disks starting from GMC scales
Michael Kuffmeier, Troels Haugboelle, Ã ke Nordlund
We investigate the formation of protoplanetary disks around nine solar mass stars formed in the context of a (40 pc) Giant Molecular Cloud model, using RAMSES adaptive-mesh ref…