Ongoing projects

  1. Invited contribution for special issue on "Effects of environment and multiplicity on planet formation" (EPJ+, editors: Manara and Lodato) to be submitted asap
  2. Synthetic polarization maps of massive protostar (Seyfritz, Kuffmeier+ to be submitted before AAS meeting)
  3. Synthetic polarization maps from pc to 1000 AU scales (Kuffmeier, Woodward & Li) to be submitted shortly after Louis Seyfritz paper
  4. Constraining probability and
    properties of streamers

Disc environment in ab initio simulations

classical accretion history

prestellar core collapses -> envelope falls onto star -> accretion stalls

more common accretion profile

prestellar core collapses -> envelope falls onto star -> star experiences late infall -> accretion continues

SEDs before/after late infall show rejuvenation of star (before infall: Class II; after infall: Class 0/I)

paper to be submitted asap for special issue in EPJ+

Stealing from a disk

Zoom-in on mass transfer in stellar multiple

Each dot corresponds to a tracer particle of gas.

The color indicates to which star the gas will accrete.

A dot disappears after the gas accreted onto a star.

Parameter study based on collapse simulations of massive protostar

  • A clear flip at high column densities (see also Reissl+ 2014)
  • Maps for different protostellar stages and grain size distributions
  • Paper (Seyfritz, Kuffmeier+) will be submitted before AAS meeting

53 μm

214 μm

Synthetic maps from ~pc to ~1000 au

Hannah Woodward

Küffmeier, Woodward & Li submission soon after Louis' paper

SOFIA HAWC+ and ALMA show the same pattern of magnetic field on molecular cloud scales...

...but beware of higher column densities!

Constraining probabilities of streamers

Hammer projections allow to obtain some statistics of 3D properties